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UNITED STATES
SECURITIES AND EXCHANGE
COMMISSION
Washington, D.C. 20549

FORM
N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES
Investment Company Act file number
811-5344
William Blair Funds
(Exact name of registrant as specified in charter)

150 North Riverside Plaza, Chicago, IL 60606
Registrant's telephone number, including area code:
312-236-1600
Date of fiscal year end:
December 31
Date of reporting period:
June 30, 2024
Item 1. Report to Stockholders.
(a) The
registrant's semi-annual reports transmitted
 to shareholders pursuant to Rule 30e-1 under the Investment Company Act of 1940
are
as follows:
William Blair Growth Fund
Class I / BGFIX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Growth Fund Class I (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last
six
months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Growth Fund Class I$450.90%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 13.86% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its benchmark, the Russell 3000
®
Growth Index, which returned 19.90% and underperformed the S&P 500
®
Index, a broad measure of market performance, which returned 15.29%.
Relative performance in the Fund was driven by a combination of stock-specific dynamics and style factors. From a sty
le
perspective, our typical bias towards small and mid-caps was a headwind as mega caps outperformed in the period. From a sector perspective, stock selection in Information Technology, including our underweight position in NVIDIA, and Health Care, including our position in UnitedHealth Group and not owning Eli Lilly, were detractors. Other individual laggards included Five Below (Consumer Discretionary), New Fortress (Energy) and Nike (Consumer Discretionary). Not owning Meta Platforms (Communication Services) also detracted from relative performance. Our top individual contributors included Vital Farms (Consumer Staples), Pure Storage (Information Technology), Alphabet (Communication Services) and Intuitive Surgical (Health Care). Our underweight to Apple (Information Technology) and not owning Tesla (Consumer Discretionary) also contributed positively to relative performance in the year-to-date period. 
TOP PERFORMANCE CONTRIBUTORS
Vital Farms
is the leader in the U.S. pasture-raised egg market. During the period, Vital Farms reported strong sales growth driven by a combination of volume and pricing as well as materially higher than expected earnings. We continue to believe Vital Farms will be a significant beneficiary as the broader egg industry evolves to cage-free production and Vital further builds out their farmer network. 
Apple
designs, manufactures and sells information technology hardware and related services and subscriptions, with the iPhone as the single largest driver of revenue. The high-end smart phone industry is likely to experience outsized growth in coming years and we believe Apple is likely to gain share of the smart phone market over our investment horizon. We initiated a position in June. Following a period of lackluster iPhone volume growth, the stock began to underperform mid-2023, which continued through Spring of 2024, thus our underweight exposure was a tailwind in the period.
TOP PERFORMANCE DETRACTORS
Five Below
is a U.S. retailer offering on-trend merchandise at extreme value price-points. Shares were pressured as recent quarterly results were disappointing, with sales, margins, and earnings falling short of expectations. While total unit growth was strong during the period, same-store sales were negative due to weaker traffic trends. Despite near-term headwinds, we believe the duration of unit growth remains intact.
New Fortress Energy
develops, finances and constructs liquified natural gas (“LNG”) assets and related infrastructure. While the company reported solid earnings results, first LNG deliveries from one of the company’s projects was delayed and the corresponding cash flow pushed out. We continue to believe New Fortress is entering a phase where capital spending should trend lower, driving attractive returns through capital deployment and new projects.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024
 
(or for the life of the Fund, if shorter). It assumes a $500,000 initial investment at the beginning of the period in a broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $500,000
Fund Performance - Growth of 10K
 
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Growth Fund Class I
13.86%24.73%14.86%13.31%
S&P 500® Index
15.29%24.56%15.05%12.86%
Russell 3000® Growth Index
19.90%32.22%18.55%15.75%
 
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fu
n
d Statistics
Fund net assets (in $000s)
$261,353
Number of portfolio holdings
50
Net advisory fees paid (in $000s)
$651
Portfolio turnover rate (six months)
31%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Microsoft Corp.8.8%
Amazon.com, Inc.8.0%
Alphabet, Inc.7.8%
NVIDIA Corp.4.8%
Advanced Micro Devices, Inc.4.1%
Mastercard, Inc.3.7%
Apple, Inc.3.5%
UnitedHealth Group, Inc.3.3%
Palo Alto Networks, Inc.3.2%
ServiceNow, Inc.3.2%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Availability of Additional Information
You can find additional information about the Fund such a
s
the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a si
ngle
copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Growth Fund
Class N / WBGSX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Growth Fund Class N (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Growth Fund Class N$601.20%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 13.61% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its benchmark, the Russell 3000
®
Growth Index, which returned 19.90% and underperformed the S&P 500
®
Index, a broad measure of market performance, which returned 15.29%.
Relative performance in the Fund was driven by a combination
of
stock-specific dynamics and style factors. From a style perspective, our typical bias towards small and mid-caps was a headwind as mega caps outperformed in the period. From a sector perspective, stock selection in Information Technology, including our underweight position in NVIDIA, and Health Care, including our position in UnitedHealth Group and not owning Eli Lilly, were detractors. Other individual laggards included Five Below (Consumer Discretionary), New Fortress (Energy) and Nike (Consumer Dis
cret
ionary). Not owning Meta Platforms (Communication Services) also detracted from relative performance. Our top individual contributors included Vital Farms (Consumer Staples), Pure Storage (Information Technology), Alphabet (Communication Services) and Intuitive Surgical (Health Care). Our underweight to Apple (Information Technology) and not owning Tesla (Consumer Discretionary) also contributed positively to relative performance in the year-to-date period. 
TOP PERFORMANCE CONTRIBUTORS
Vital Farms
is the leader in the U.S. pasture-raised egg market. During the period, Vital Farms reported strong sales growth driven by a combination of volume and pricing as well as materially higher than expected earnings. We continue to believe Vital Farms will be a significant beneficiary as the broader egg industry evolves to cage-free production and Vital further builds out their farmer network. 
Apple
designs, manufactures and sells information technology hardware and related services and subscriptions, with the iPhone as the single largest driver of revenue. The high-end smart phone industry is likely to experience outsized growth in coming years and we believe Apple is likely to gain share of the smart phone market over our investment horizon. We initiated a position in June. Following a period of lackluster iPhone volume growth, the stock began to underperform mid-2023, which continued through Spring of 2024, thus our underweight exposure was a tailwind in the period.
TOP PERFORMANCE DETRACTORS
Five Below
is a U.S. retailer offering on-trend merchandise at extreme value price-points. Shares were pressured as recent quarterly results were disappointing, with sales, margins, and earnings falling short of expectations. While total unit growth was strong during the period, same-store sales were negative due to weaker traffic trends. Despite near-term headwinds, we believe the duration of unit growth remains intact.
New Fortress Energy
develops, finances and constructs liquified natural gas (“LNG”) assets and related infrastructure. While the company reported solid earnings results, first LNG deliveries from one of the company’s projects was delayed and the corresponding cash flow pushed out. We continue to believe New Fortress is entering a phase where capital spending should trend lower, driving attractive returns through capital deployment and new projects.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $10,000 initial investment at the beginning of the period in a
 
broad-based securities market index and an additional index for the same period. The additional index is generally representative of the m
ark
et sectors or types of investments in which the Fund invests.
GROWTH OF $10,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Growth Fund Class N
13.61%24.42%14.54%12.98%
S&P 500® Index
15.29%24.56%15.05%12.86%
Russell 3000® Growth Index
19.90%32.22%18.55%15.75%
 
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund
S
ta
ti
stics
Fund net assets (in $000s)
$261,353
Number of portfolio holdings
50
Net advisory fees paid (in $000s)
$111
Portfolio turnover rate (six months)
31%
Graphical Representation of Holdings
The tables below show the in
ve
stment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Microsoft Corp.8.8%
Amazon.com, Inc.8.0%
Alphabet, Inc.7.8%
NVIDIA Corp.4.8%
Advanced Micro Devices, Inc.4.1%
Mastercard, Inc.3.7%
Apple, Inc.3.5%
UnitedHealth Group, Inc.3.3%
Palo Alto Networks, Inc.3.2%
ServiceNow, Inc.3.2%
Sector Allocation
Graphical Representation - Allocation 1 Chart
 
Availability of Additional Information
You can find additional information about the Fund such as th
e
prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Growth Fund
Class R6 / BGFRX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Growth Fund Class R6 (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Growth Fund Class R6$430.86%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 13.87% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its benchmark, the Russell 3000
®
Growth Index, which returned 19.90% and underperformed the S&P 500
®
Index, a broad measure of market performance, which returned 15.29%.
Relative performance in the Fund was driven by a combination of stock-specific dynamics and style factors. From a style perspective, our
ty
pical bias towards small and mid-caps was a headwind as mega caps outperformed in the period. From a sector perspective, stock selection in Information Technology, including our underweight position in NVIDIA, and Health Care, including our position in UnitedHealth Group and not owning Eli Lilly, were detractors. Other individual laggards included Five Below (Consumer Discretionary), New Fortress (Energy) and Nike (Consumer Discretionary). Not owning Meta Platforms (Communication Services) also detracted from relative performance. Our top individual contributors included Vita
l Far
ms (Consumer Staples), Pure Storage (Information Technology), Alphabet (Communication Services) and Intuitive Surgical (Health Care). Our underweight to Apple (Information Technology) and not owning Tesla (Consumer Discretionary) also contributed positively to relative performance in the year-to-date period. 
TOP PERFORMANCE CONTRIBUTORS
Vital Farms
is the leader in the U.S. pasture-raised egg market. During the period, Vital Farms reported strong sales growth driven by a combination of volume and pricing as well as materially higher than expected earnings. We continue to believe Vital Farms will be a significant beneficiary as the broader egg industry evolves to cage-free production and Vital further builds out their farmer network. 
Apple
designs, manufactures and sells information technology hardware and related services and subscriptions, with the iPhone as the single largest driver of revenue. The high-end smart phone industry is likely to experience outsized growth in coming years and we believe Apple is likely to gain share of the smart phone market over our investment horizon. We initiated a position in June. Following a period of lackluster iPhone volume growth, the stock began to underperform mid-2023, which continued through Spring of 2024, thus our underweight exposure was a tailwind in the period.
TOP PERFORMANCE DETRACTORS
Five Below
is a U.S. retailer offering on-trend merchandise at extreme value price-points. Shares were pressured as recent quarterly results were disappointing, with sales, margins, and earnings falling short of expectations. While total unit growth was strong during the period, same-store sales were negative due to weaker traffic trends. Despite near-term headwinds, we believe the duration of unit growth remains intact.
New Fortress Energy
develops, finances and constructs liquified natural gas (“LNG”) assets and related infrastructure. While the company reported solid earnings results, first LNG deliveries from one of the company’s projects was delayed and the corresponding cash flow pushed out. We continue to believe New Fortress is entering a phase where capital spending should trend lower, driving attractive returns through capital deployment and new projects.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $1,000,000 initial investment at the beginning of the
 
period in a broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $1,000,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
Since Inception
Growth Fund Class R6
13.87%24.79%14.94%14.99%
S&P 500® Index
15.29%24.56%15.05%14.76%
Russell 3000® Growth Index
19.90%32.22%18.55%18.09%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fun
d Stat
istics
Fund net assets (in $000s)
$261,353
Number of portfolio holdings
50
Net advisory fees paid (in $000s)
$176
Portfolio turnover rate (six months)
31%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, re
present
ing percentage of the total net assets of the Fund.
Top Ten Holdings
Microsoft Corp.8.8%
Amazon.com, Inc.8.0%
Alphabet, Inc.7.8%
NVIDIA Corp.4.8%
Advanced Micro Devices, Inc.4.1%
Mastercard, Inc.3.7%
Apple, Inc.3.5%
UnitedHealth Group, Inc.3.3%
Palo Alto Networks, Inc.3.2%
ServiceNow, Inc.3.2%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Large Cap Growth Fund
Class I / LCGFX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Large Cap Growth Fund Class I (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Large Cap Growth Fund Class I$330.65
%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 20.50% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its benchmark, the Russell 1000
®
Growth Index (the "Index"), which returned
 
20.70% and outperformed the Russell 1000
®
Index, a broad measure of market performance, which returned 14.24%.
Relative performance drivers were largely stock-specific in nature. Top detractors in the Fund were Accenture (Information Technology), Monster Beverage Corp (Consumer Staples), Mastercard (Financials), and Salesforce (Information Technology), while not owning Meta (Communication Services) also dampened relative returns. Stock selection in Health Care, including our position in Zoetis and not owning Eli Lilly, further pressured performance versus the Index. Top contributors for the year-to-date period were NVIDIA (Information Technology), Lam Research (Information Technology) and Alphabet (Communication Services). Our underweight to Apple (Information Technology) was the largest contributor to
relative
returns year
-to
-date as the stock underperformed during the first quarter when we did not yet own it. Stock selection in Consumer Discretionary, including our position in Chipotle Mexican Grill and not owning Tesla, also benefitted relative performance.
TOP PERFORMANCE CONTRIBUTORS
Apple
designs, manufactures and sells information technology hardware and related services and subscriptions, with the iPhone as the single largest driver of revenue. The high-end smart phone industry is likely to experience outsized growth in coming years and we believe Apple is likely to gain share of the smart phone market over our investment horizon. We initiated a position in June. Following a period of lackluster iPhone volume growth, the stock began to underperform mid-2023, which continued through Spring of 2024, thus our underweight exposure was a tailwind in the period.
NVIDIA
is a leading fabless semiconductor company specializing in the design and marketing of high-performance graphics processing unit (GPU) chipsets and software systems. The stock outperformed on robust data center revenue growth, as well as strength from Enterprise and Consumer Internet customers, highlighting the broadening AI adoption.
TOP PERFORMANCE DETRACTORS
Accenture
is a leading global professional services company. The stock underperformed as conversions slowed and the outlook for near term discretionary activity weakened due to a challenging macro environment for the industry. We believe Accenture is well positioned to take market share from competitors in the fragmented IT services market.
Monster Beverage
develops, markets, sells and distributes energy drinks. Shares lagged as investors awaited the re-launch of Bang, a zero-sugar energy drink brand acquired by Monster in 2023.
 
We believe Monster has a long runway for growth driven by proven new product innovation and marketing capabilities, as well as its global distribution and scale.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024
 
(or for the life of the Fund, if shorter). It assumes a $500,000 initial investment at the beginning of the period in a broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $500,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Large Cap Growth Fund Class I
20.50%35.20%17.08%16.05%
Russell 1000
®
Index
14.24%23.88%14.61%12.51%
Russell 1000
®
Growth Index
20.70%33.48%19.34%16.33%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund St
atis
tics
Fund net assets (in $000s)
$2,404,288
Number of portfolio holdings
31
Net advisory fees paid (in $000s)
$3,934
Portfolio turnover rate (six months)
17%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, rep
re
senting perc
en
tage of the total net assets of the Fund.
Top Ten Holdings
Microsoft Corp.13.9%
NVIDIA Corp.10.7%
Alphabet, Inc.9.7%
Amazon.com, Inc.8.7%
Apple, Inc.6.3%
Mastercard, Inc.4.1%
Intuit, Inc.2.6%
ServiceNow, Inc.2.5%
Lam Research Corp.2.4%
UnitedHealth Group, Inc.2.4%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Large Cap Growth Fund
Class N / LCGNX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Large Cap Growth Fund Class N (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Large Cap Growth Fund Class N$450.90
%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 20.31% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its benchmark, the Russell 1000
®
Growth Index (the "Index"), which returned
 
20.70% and outperformed the Russell 1000
®
Index, a broad measure of market performance, which returned 14.24%.
Relative performance drivers were largely stock-specific in nature. Top detractors in the Fund wer
e Accent
ure (Information Technology), Monster Beverage Corp (Consumer Staples), Mastercard (Financials), and Salesforce (Information Technology), while not owning Meta (Communication Services) also dampened relative returns. Stock selection in Health Care, including our position in Zoetis and not
own
ing Eli Lilly, further pressured performance versus the Index. Top contributors for the year-to-date period were NVIDIA (Information Technology), Lam Research (Information Technology) and Alphabet (Communication Services). Our underweight to Apple (Information Technology) was the largest contributor to relative returns year-to-date as the stock underperformed during the first quarter when we did not yet own it. Stock selection in Consumer Discretionary, including our position in Chipotle Mexican Grill and not owning Tesla, also benefitted relative performance.
TOP PERFORMANCE CONTRIBUTORS
Apple
designs, manufactures and sells information technology hardware and related services and subscriptions, with the iPhone as the single largest driver of revenue. The high-end smart phone industry is likely to experience outsized growth in coming years and we believe Apple is likely to gain share of the smart phone market over our investment horizon. We initiated a position in June. Following a period of lackluster iPhone volume growth, the stock began to underperform mid-2023, which continued through Spring of 2024, thus our underweight exposure was a tailwind in the period.
NVIDIA
is a leading fabless semiconductor company specializing in the design and marketing of high-performance graphics processing unit (GPU) chipsets and software systems. The stock outperformed on robust data center revenue growth, as well as strength from Enterprise and Consumer Internet customers, highlighting the broadening AI adoption.
TOP PERFORMANCE DETRACTORS
Accenture
is a leading global professional services company. The stock underperformed as conversions slowed and the outlook for near term discretionary activity weakened due to a challenging macro environment for the industry. We believe Accenture is well positioned to take market share from competitors in the fragmented IT services market.
Monster Beverage
develops, markets, sells and distributes energy drinks. Shares lagged as investors awaited the re-launch of Bang, a zero-sugar energy drink brand acquired by Monster in 2023.
 
We believe Monster has a long runway for growth driven by proven new product innovation and marketing capabilities, as well as its global distribution and scale.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $10,000 initial investment at the beginning of the period in a
 
broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $10,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Large Cap Growth Fund Class N
20.31%34.88%16.78%15.75%
Russell 1000® Index
14.24%23.88%14.61%12.51%
Russell 1000® Growth Index
20.70%33.48%19.34%16.33%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund
St
atistics
Fund net assets (in $000s)
$2,404,288
Number of portfolio holdings
31
Net advisory fees paid (in $000s)
$418
Portfolio turnover rate (six months)
17%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representi
ng perc
entage of the total net assets of the Fund.
Top Ten Holdings
Microsoft Corp.13.9%
NVIDIA Corp.10.7%
Alphabet, Inc.9.7%
Amazon.com, Inc.8.7%
Apple, Inc.6.3%
Mastercard, Inc.4.1%
Intuit, Inc.2.6%
ServiceNow, Inc.2.5%
Lam Research Corp.2.4%
UnitedHealth Group, Inc.2.4%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Large Cap Growth Fund
Class R6 / LCGJX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Large Cap Growth Fund Class R6 (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Large Cap Growth Fund Class R6$300.60
%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 20.50% (net of fees) for the 6 months ended June 3
0, 2
024. The Fund underperformed i
ts bench
mark, the Russell 1000
®
Growth Index (the "Index"), which returned
 
20.70% and outperformed the Russell 1000
®
Index, a broad measure of market performance, which returned 14.24%.
Relative performance drivers were largely stock-specific in nature. Top detractors in the Fund were Accenture (Information Technology), Monster Beverage Corp (Consumer Staples), Mastercard (Financials), and Salesforce (Information Technology), while not owning Meta (Communication Services) also dampened relative returns. Stock selection in Health Care, including our position in Zoetis and not owning Eli Lilly, further pressured performance versus the Index. Top contributors for the year-to-date period were NVIDIA (Information Technology), Lam Research (Information Technology) and Alphabet (Communication Services). Our underweight to Apple (Information Technology) was the largest contributor to relative returns year-to-date as the stock underperformed during the first quarter when we did not yet own it. Stock selection in Consumer Discretionary, including our position in Chipotle Mexican Grill and not owning Tesla, also benefitted relative performance.
TOP PERFORMANCE CONTRIBUTORS
Apple
designs, manufactures and sells information technology hardware and related services and subscriptions, with the iPhone as the single largest driver of revenue. The high-end smart phone industry is likely to experience outsized growth in coming years and we believe Apple is likely to gain share of the smart phone market over our investment horizon. We initiated a position in June. Following a period of lackluster iPhone volume growth, the stock began to underperform mid-2023, which continued through Spring of 2024, thus our underweight exposure was a tailwind in the period.
NVIDIA
is a leading fabless semiconductor company specializing in the design and marketing of high-performance graphics processing unit (GPU) chipsets and software systems. The stock outperformed on robust data center revenue growth, as well as strength from Enterprise and Consumer Internet customers, highlighting the broadening AI adoption.
TOP PERFORMANCE DETRACTORS
Accenture
is a leading global professional services company. The stock underperformed as conversions slowed and the outlook for near term discretionary activity weakened due to a challenging macro environment for the industry. We believe Accenture is well positioned to take market share from competitors in the fragmented IT services market.
Monster Beverage
develops, markets, sells and distributes energy drinks. Shares lagged as investors awaited the re-launch of Bang, a zero-sugar energy drink brand acquired by Monster in 2023.
 
We believe Monster has a long runway for growth driven by proven new product innovation and marketing capabilities, as well as its global distribution and scale.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $1,000,000 initial investment at the beginning of the
 
period in a broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $1,000,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
Since Inception
Large Cap Growth Fund Class R6
20.50%35.32%17.13%17.44%
Russell 1000® Index
14.24%23.88%14.61%14.31%
Russell 1000® Growth Index
20.70%33.48%19.34%18.86%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Sta
ti
stics
Fund net assets (in $000s)
$
2,404,288
Number of portfolio holdings
31
Net advisory fees paid (in $000s)
$1,168
Portfolio turnover rate (six months)
17%
 
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representin
g p
ercentage of the total net assets of the Fund.
Top Ten Holdings
Microsoft Corp.13.9%
NVIDIA Corp.10.7%
Alphabet, Inc.9.7%
Amazon.com, Inc.8.7%
Apple, Inc.6.3%
Mastercard, Inc.4.1%
Intuit, Inc.2.6%
ServiceNow, Inc.2.5%
Lam Research Corp.2.4%
UnitedHealth Group, Inc.2.4%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Mid Cap Value Fund
Class I / WVMIX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Mid Cap Value Fund Class I (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
.
You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Mid Cap Value Fund Class I$380.76
%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 1.66% (net of fees) for the 6 months ended Jun
e
30, 2024. The Fund underperformed its benchmark, the Russell Midcap
®
Value Index, which returned 4.54% and underperformed the Russell 3000
®
Index, a broad measure of market performance, which returned 13.56%.
The Fund’s underperformance versus its benchmark was driven by negative stock selection in the Industrials, Materials, and Utilities sectors. While the Fund suffered from negative stock selection, the Fund was positively impacted due to a relative outperformance by the Fund’s holdings in the Financials, Consumer Staples, and Health Care sectors.
TOP PERFORMANCE CONTRIBUTORS
Flex 
operates as an electronics manufacturing services company, which designs and develops original design manufacturing products for aerospace & defense, cloud, digital health, lighting, housing, energy, industrial, and communication industries. Flex recently reported strong financial metrics including earnings, revenues, and operating income compared to consensus estimates. 
Ralph Lauren 
designs clothing and accessories, operating in the men’s, women’s, children’s apparel, accessories, fragrances, and home furnishing segments. Ralph Lauren’s increased marketing spend has been able to attract a younger demographic and boost same store sales.
Diamondback Energy 
operates as an independent oil and natural gas company, which focuses on the acquisition, development, exploration, and exploitation of unconventional, onshore oil, and natural gas reserves in the Permian Basin in West Texas. During the period, the company slightly missed on production estimates, but beat capital expenditure and free cash flow estimates.
TOP PERFORMANCE DETRACTORS
Brunswick 
manufactures recreational marine products and provides outboard, stem-drive, inboard engines, as well as controls, rigging, and propellers. Despite strong operation of the business, consumer weakness and lower discretionary spend on recreational products has hurt Brunswick’s Navico and engine products & accessories business segments.
Envista Holdings 
is the second largest provider of dental products in the world. A soft quarter stemmed from continued weakness in the dental markets, particularly at the high-end.
Global Payments 
engages in the provision of payment technology and software solu
tio
ns and operates through the merchant and issuer solutions segments. Even though the company’s merchant solutions business saw organic growth during the period, the segment’s margins were not able to keep pace. Management’s guidance of a flat margins in the upcoming quarter was a disappointment to investors, who expected quicker margin improvement.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024
 
(or for the life of the Fund, if shorter). It assumes a $500,000 initial investment at the beginning of the period in a broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types
of
investments
i
n which the Fund invests.
GROWTH OF $500,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
Since Inception
Mid Cap Value Fund Class I
1.66%8.70%2.94%
Russell 3000® Index
13.56%23.13%12.09%
Russell Midcap
®
Value Index
4.54%11.98%4.52%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$1,614
Number of portfolio holdings
59
Net advisory fees paid (in $000s)
$0
Portfolio turnover rate (six months)
26%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund,
represe
nting percentage of the total net assets of the Fund.
Top Ten Holdings
Qorvo, Inc.2.1%
Willis Towers Watson PLC2.1%
Ingredion, Inc.2.1%
Timken Co.2.0%
KKR & Co., Inc.2.0%
U.S. Foods Holding Corp.1.9%
Axalta Coating Systems Ltd.1.9%
NiSource, Inc.1.9%
Diamondback Energy, Inc.1.9%
Teleflex, Inc.1.9%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Mid Cap Value Fund
Class R6 / WVMRX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Mid Cap Value Fund Class R6 (the "Fund”) for the period of January 1, 2024, to June 30, 2024.You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Mid Cap Value Fund Class R6
$
35
0.70
%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 1.66% (net of fees) for the 6 months ended June
30,
2024. The Fund underperformed its benchmark, the Russell Midcap
®
Value Index, which returned 4.54% and underperformed the Russell 3000
®
Index, a broad measure of market performance, which returned 13.56%.
The Fund’s underperformance versus its benchmark was driven by negative stock selection in the Industrials, Materials, and Utilities sectors. While the Fund suffered from negative stock selection, the Fund was positively impacted due to a relative outperformance by the Fund’s holdings in the Financials, Consumer Staples, and Health Care sectors.
TOP PERFORMANCE CONTRIBUTORS
Flex 
operates as an electronics manufacturing services company, which designs and develops original design manufacturing products for aerospace & defense, cloud, digital health, lighting, housing, energy, industrial, and communication industries. Flex recently reported strong financial metrics including earnings, revenues, and operating income compared to consensus estimates. 
Ralph Lauren 
designs clothing and accessories, operating in the men’s, women’s, children’s apparel, accessories, fragrances, and home furnishing segments. Ralph Lauren’s increased marketing spend has been able to attract a younger demographic and boost same store sales.
Diamondback Energy 
operates as an independent oil and natural gas company, which focuses on the acquisition, development, exploration, and exploitation of unconventional, onshore oil, and natural gas reserves in the Permian Basin in West Texas. During the period, the company slightly missed on production estimates, but beat capital expenditure and free cash flow estimates.
TOP PERFORMANCE DETRACTORS
Brunswick 
manufactures recreational marine products and provides outboard, stem-drive, inboard engines, as well as controls, rigging, and propellers. Despite strong operation of the business, consumer weakness and lower discretionary spend on recreational products has hurt Brunswick’s Navico and engine products & accessories business segments.
Envista Holdings 
is the second largest provider of dental products in the world. A soft quarter stemmed from continued weakness in the dental markets, particularly at the high-end.
Global Payments 
engages in the provision of payment technology and software solutions and operates through the merchant and issuer solutions segments. Even though the company’s merchant solutions business saw organic growth during the period, the segment’s margins were not able to keep pace. Management’s guidance of a flat margins in the upcoming quarter was a disappointment to investors, who expected quicker margin improvement.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $1,000,000 initial investment at the beginning of the
 
period in a broad-based securities market index and an additional index for the same
period.
The additional index is generally representative of the market sectors or types of investments
in
which
th
e Fund
invests.
GROWTH OF $1,000,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
Since Inception
Mid Cap Value Fund Class R6
1.66%8.75%2.97%
Russell 3000® Index
13.56%23.13%12.09%
Russell Midcap® Value Index
4.54%11.98%4.52%
Keep in mind that the Fund’s past performance is not a
go
od predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$
1,614
Number of portfolio holdings
59
Net advisory fees paid (in $000s)
$0
Portfolio turnover rate (six months)
26%
Graphical Representation of Holdings
The tables below show the investment makeup
of
the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Qorvo, Inc.2.1%
Willis Towers Watson PLC2.1%
Ingredion, Inc.2.1%
Timken Co.2.0%
KKR & Co., Inc.2.0%
U.S. Foods Holding Corp.1.9%
Axalta Coating Systems Ltd.1.9%
NiSource, Inc.1.9%
Diamondback Energy, Inc.1.9%
Teleflex, Inc.1.9%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Small-Mid Cap
Core Fund
Class I / WBCIX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Small-Mid Cap Core Fund Class I (the "Fund”) for the period of January 1, 2024, to June 30, 2024.You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the l
as
t six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Small-Mid Cap Core Fund Class I
$
48
0.95%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 0.07% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its benchmark, the Russell 2500™ Index, which returned 2.35% and underperformed the Russell 3000
®
Index, a broad measure of market performance, which returned 13.56%.
Relative performance of the Fund was driven by stock specific dynamics. From a sector perspective, stock selection within Energy, including our position in New Fortress Energy, and Health Care, detracted from relative performance.
 
Other individual detractors included Mercury Systems (Industrials), Columbia Banking System (Financials), National Vision Holdings (Consumer Discretionary) and Pool Corp. (Consumer Discretionary). Not owning Super Micro Computer (Information Technology) also detracted from relative performance. Positive stock selection in Financials, including our position in Baldwin Insurance Group, contributed to relative performance. Other top individual contributors included Primo Water (Consumer Staples), Sylvamo (Materials), BWX Technologies (Industrials) and Encompass Health (Health Care).
 
TOP PERFORMANCE CONTRIBUTORS
Baldwin Insurance
is an independent insurance agent/broker and managing general agent/underwriter. The company strategy is to be the buyer of choice for more entrepreneurial, faster growing insurance brokers with a focus on the U.S. market.
 
The company reported better than expected revenue and earnings results during the period, driven by strong organic growth across business segments including new client growth and better-than-expected margin improvement.
Primo Water
is a leading provider of multi-gallon purified bottled water, self-service refill water and water dispensers sold throughout North America.
 
Shares advanced as the company reported better than expected top and bottom-line results, driven by strong organic growth and margin expansion across all segments. Additionally, there is optimism around the potential for an improved growth profile under the leadership of the company’s recently appointed CEO, as well as the divestiture of its international business.
TOP PERFORMANCE DETRACTORS
New Fortress Energy
develops, finances and constructs liquified natural gas (“LNG”) assets and related infrastructure.
 
The company brings low-cost U.S. natural gas to foreign markets through LNG and in some cases owns the power generation assets in those foreign countries. The company reported solid earnings driven by downstream operating results.
 
However, first LNG deliveries from one of the company’s projects was delayed and the corresponding cash flow pushed out.
Mercury Systems
is a provider of sensor processing subsystems.
 
The stock underperformed as a number of development programs experienced a shared operational issue that caused cost overruns.
 
As these projects continue to transition to the production phase, and the business mix between production and development normalizes, we would expect margin improvement, positive cash flows and organic growth to follow.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024
 
(or for the life of the Fund, if shorter). It assumes a $500,000 initial investment at the beginning of the period in a broad-based securities market index and an additional index for the same
period.
The additional index is generally representative of the market sectors or types of investments in which the Fund
invests.
GROWTH OF $500,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
Since Inception
Small-Mid Cap Core Fund Class I
0.07%4.88%9.41%
Russell 3000® Index
13.56%23.13%14.65%
Russell 2500™ Index
2.35%10.47%9.06%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$
197,484
Number of portfolio holdings
88
Net advisory fees paid (in $000s)
$374
Portfolio turnover rate (six months)
29%
Graphical Representation of H
olding
s
The tables below show the investment makeup of the Fund, representing percentage of th
e tota
l net assets of the Fund.
Top Ten Holdings
BWX Technologies, Inc.2.4%
Baldwin Insurance Group, Inc.2.3%
Everest Group Ltd.2.1%
Western Alliance Bancorp2.0%
Bright Horizons Family Solutions, Inc.1.9%
Carlyle Group, Inc.1.9%
Casella Waste Systems, Inc.1.9%
Garrett Motion, Inc.1.7%
East West Bancorp, Inc.1.7%
ACV Auctions, Inc.1.6%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Small-Mid Cap
Core Fund
Class R6 / WBCRX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Small-Mid Cap Core Fund Class R6 (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Small-Mid Cap Core Fund Class R6
$
45
0.90%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 0.13% (net of fees) for the 6 mon
th
s ended June 30, 2024. The Fund underperformed its benchmark, the Russell 2500™ Index, which returned 2.35% and underperformed the Russell 3000
®
Index, a broad measure of market performance, which returned 13.56%.
Relative performance of the Fund was driven by stock specific dynamics. From a sector perspective, stock selection within Energy, including our position in New Fortress Energy, and Health Care, detracted from relative performance.
 
Other individual detractors included Mercury Systems (Industrials), Columbia Banking System (Financials), National Vision Holdings (Consumer Discretionary) and Pool Corp. (Consumer Discretionary). Not owning Super Micro Computer (Information Technology) also detracted from relative performance. Positive stock selection in Financials, including our position in Baldwin Insurance Group, contributed to relative performance. Other top individual contributors included Primo Water (Consumer Staples), Sylvamo (Materials), BWX Technologies (Industrials) and Encompass Health (Health Care).
 
TOP PERFORMANCE CONTRIBUTORS
Baldwin Insurance
is an independent insurance agent/broker and managing general agent/underwriter. The company strategy is to be the buyer of choice for more entrepreneurial, faster growing insurance brokers with a focus on the U.S. market.
 
The company reported better than expected revenue and earnings results during the period, driven by strong organic growth across business segments including new client growth and better-than-expected margin improvement.
Primo Water
is a leading provider of multi-gallon purified bottled water, self-service refill water and water dispensers sold throughout North America.
 
Shares advanced as the company reported better than expected top and bottom-line results, driven by strong organic growth and margin expansion across all segments. Additionally, there is optimism around the potential for an improved growth profile under the leadership of the company’s recently appointed CEO, as well as the divestiture of its international business.
TOP PERFORMANCE DETRACTORS
New Fortress Energy
develops, finances and constructs liquified natural gas (“LNG”) assets and related infrastructure.
 
The company brings low-cost U.S. natural gas to foreign markets through LNG and in some cases owns the power generation assets in those foreign countries. The company reported solid earnings driven by downstream operating results.
 
However, first LNG deliveries from one of the company’s projects was delayed and the corresponding cash flow pushed out.
Mercury Systems
is a provider of sensor processing subsystems.
 
The stock underperformed as a number of development programs experienced a shared operational issue that caused cost overruns.
 
As these projects continue to transition to the production phase, and the business mix between production and development normalizes, we would expect margin improvement, positive cash flows and organic growth to follow.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $1,000,000 initial investment at the beginning of the
 
period in a broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments
in wh
ich the Fun
d inves
ts.
GROWTH OF $1,000,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
Since Inception
Small-Mid Cap Core Fund Class R6
0.13%4.92%9.46%
Russell 3000® Index
13.56%23.13%14.65%
Russell 2500™ Index
2.35%10.47%9.06%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$
197,484
Number of portfolio holdings
88
Net advisory fees paid (in $000s)
$374
Portfolio turnover rate (six months)
29%
Graphical Representation of Holdings
The tables below show the investment ma
keup o
f the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
BWX Technologies, Inc.2.4%
Baldwin Insurance Group, Inc.2.3%
Everest Group Ltd.2.1%
Western Alliance Bancorp2.0%
Bright Horizons Family Solutions, Inc.1.9%
Carlyle Group, Inc.1.9%
Casella Waste Systems, Inc.1.9%
Garrett Motion, Inc.1.7%
East West Bancorp, Inc.1.7%
ACV Auctions, Inc.1.6%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Small-Mid Cap
Growth Fund
Class I / WSMDX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Small-Mid Cap Growth Fund Class I (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Small-Mid Cap Growth Fund Class I
$
50
0.99%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 1.34% (net of fees) for the 6 months ended June 30, 2024. The Fund underperfo
rm
ed its benchmark, the Russell 2500™ Growth Index, which returned 3.93% and underperformed the Russell 3000
®
Index, a broad measure of market performance, which returned 13.56%.
Relative performance of the Fund was driven by stock specific dynamics. From a sector perspective, stock selection in Energy, including our position in New Fortress Energy, and Health Care, including our position in Evolent Health, detracted from relative performance. Other individual detractors included Five Below (Consumer Discretionary), Shoals Technologies Group (Industrials) and Mercury Systems (Industrials). Not owning Microstrategy (Information Technology) and Deckers (Consumer Discretionary) also detracted from relative performance. Positive stock selection in Consumer Staples, including our positions in Freshpet and e.l.f. Beauty, contributed to relative performance. Other top individual contributors included Insmed (Health Care), Super Micro Computer (Information Technology) and Encompass Health (Health Care).
TOP PERFORMANCE
CONTRIBUTORS
Freshpet
is the leading manufacturer of refrigerated fresh pet food with a large share of the category.
 
The company reported better than expected results, with strong sales growth driven by higher sales volumes.
 
Gross margins showed substantial improvement year-over-year, attributed to higher capacity utilization, lower input costs and operational improvements.
 
e.l.f. Beauty
sells premium quality cosmetic and skincare products with broad appeal at accessible price points ($3-15) under the e.l.f., Well People, and Keys Soulcare brands.
 
The company reported strong financial results with sales exceeding expectations across major categories despite tough comparisons and experienced market share gains across the majority of the top 10 beauty brands on the market.
TOP PERFORMANCE DETRACTORS
New Fortress Energy
develops, finances and constructs liquified natural gas (“LNG”) assets and related infrastructure.
 
The company brings low-cost U.S. natural gas to foreign markets through LNG and in some cases owns the power generation assets in those foreign countries. The company reported solid results driven by downstream operations during the period.
 
However, first LNG deliveries from one of the company’s projects was delayed and the corresponding cash flow pushed out.
Five Below
is a U.S. retailer offering on-trend merchandise at extreme value price-points.
 
Shares were pressured as recent quarterly results were disappointing, with sales, margins, and earnings falling short of expectations.
 
While total unit growth was strong during the period, same-store sales were negative due to weaker traffic trends.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024
 
(or for the life of the Fund, if shorter). It assumes a $500,000 initial investment at the beginning of the period in a broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or
types
of investments in which the
Fund
invests.
GROWTH OF $500,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Small-Mid Cap Growth Fund Class I
1.34%6.89%6.82%10.01%
Russell 3000® Index
13.56%23.13%14.14%12.15%
Russell 2500™ Growth Index
3.93%9.02%7.58%8.77%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$1,864,134
Number of portfolio holdings
77
Net advisory fees paid (in $000s)
$5,621
Portfolio turnover rate (six months)
24%
Graphical Representation of Holdings
The tables below show the investment makeup of the F
und
, representing
percentage
of the total net assets of the Fund.
Top Ten
Holdings
BWX Technologies, Inc.2.6%
e.l.f. Beauty, Inc.2.5%
Encompass Health Corp.2.4%
Freshpet, Inc.2.2%
Carlyle Group, Inc.2.1%
Chemed Corp.2.1%
Advanced Drainage Systems, Inc.2.0%
Tyler Technologies, Inc.1.9%
Brink's Co.1.8%
Axon Enterprise, Inc.1.8%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Availability of Additional
Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Small-Mid Cap
Growth Fund
Class N / WSMNX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Small-Mid Cap Growth Fund Class N (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information abo
ut
the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Small-Mid Cap Growth Fund Class N
$
62
1.24%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 1.20% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its benchmark, the Russell 2500™ Growth Index, which returned 3.93% and underperformed the Russell 3000
®
Index, a broad measure of market performance, which returned 13.56%.
Relative performance of the Fund was driven by stock specific dynamics. From a sector perspective, stock selection in Energy, including our position in New Fortress Energy, and Health Care, including our position in Evolent Health, detracted from relative performance. Other individual detractors included Five Below (Consumer Discretionary), Shoals Technologies Group (Industrials) and Mercury Systems (Industrials). Not owning Microstrategy (Information Technology) and Deckers (Consumer Discretionary) also detracted from relative performance. Positive stock selection in Consumer Staples, including our positions in Freshpet and e.l.f. Beauty, contributed to relative performance. Other top individual contributors included Insmed (Health Care), Super Micro Computer (Information Technology) and Encompass Health (Health Care).
TOP PERFORMANCE CONTRIBUTORS
Freshpet
is the leading manufacturer of refrigerated fresh pet food with a large share of the category.
 
The
company
reported better than expected results, with strong sales growth driven by higher sales volumes.
 
Gross margins showed substantial improvement year-over-year, attributed to higher capacity utilization, lower input costs and operational improvements.
 
e.l.f. Beauty
sells premium quality cosmetic and skincare products with broad appeal at accessible price points ($3-15) under the e.l.f., Well People, and Keys Soulcare brands.
 
The company reported strong financial results with sales exceeding expectations across major categories despite tough comparisons and experienced market share gains across the majority of the top 10 beauty brands on the market.
TOP PERFORMANCE DETRACTORS
New Fortress Energy
develops, finances and constructs liquified natural gas (“LNG”) assets and related infrastructure.
 
The company brings low-cost U.S. natural gas to foreign markets through LNG and in some cases owns the power generation assets in those foreign countries. The company reported solid results driven by downstream operations during the period.
 
However, first LNG deliveries from one of the company’s projects was delayed and the corresponding cash flow pushed out.
Five Below
is a U.S. retailer offering on-trend merchandise at extreme value price-points.
 
Shares were pressured as recent quarterly results were disappointing, with sales, margins, and earnings falling short of expectations.
 
While total unit growth was strong during the period, same-store sales were negative due to weaker traffic trends.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $10,000 initial investment at the beginning of the period in a
 
broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types
of
investments in which the Fund invests.
GROWTH OF $10,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Small-Mid Cap Growth Fund Class N
1.20%6.63%6.55%9.72%
Russell 3000® Index
13.56%23.13%14.14%12.15%
Russell 2500™ Growth Index
3.93%9.02%7.58%8.77%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the
future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund
Statistics
Fund net assets (in $000s)
$
1,864,134
Number of portfolio holdings
77
Net advisory fees paid (in $000s)
$
409
Portfolio turnover rate (six months)
24%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten
Holdings
BWX Technologies, Inc.2.6%
e.l.f. Beauty, Inc.2.5%
Encompass Health Corp.2.4%
Freshpet, Inc.2.2%
Carlyle Group, Inc.2.1%
Chemed Corp.2.1%
Advanced Drainage Systems, Inc.2.0%
Tyler Technologies, Inc.1.9%
Brink's Co.1.8%
Axon Enterprise, Inc.1.8%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Small-Mid Cap
Growth Fund
Class R6 / WSMRX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Small-Mid Cap Growth Fund Class R6 (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for
the
last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Small-Mid Cap Growth Fund Class R6
$
47
0.94%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 1.34% (net of fees) for the 6 months ended Jun
e 3
0, 2024. The Fund underperformed its benchmark, the Russell 2500™ Growth Index, which returned 3.93% and underperformed the Russell 3000
®
Index, a broad measure of market performance, which returned 13.56%.
Relative performance of the Fund was driven by stock specific dynamics. From a sector perspective, stock selection in Energy, including our position in New Fortress Energy, and Health Care, including our position in Evolent Health, detracted from relative performance. Other individual detractors included Five Below (Consumer Discretionary), Shoals Technologies Group (Industrials) and Mercury Systems (Industrials). Not owning Microstrategy (Information Technology) and Deckers (Consumer Discretionary) also detracted from relative performance. Positive stock selection in Consumer Staples, including our positions in Freshpet and e.l.f. Beauty, contributed to relative performance. Other top individual contributors included Insmed (Health Care), Super Micro Computer (Information Technology) and Encompass Health (Health Care).
TOP PERFORMANCE
CONTRIBUTORS
Freshpet
is the leading manufacturer of refrigerated fresh pet food with a large share of the category.
 
The company reported better than expected results, with strong sales growth driven by higher sales volumes.
 
Gross margins showed substantial improvement year-over-year, attributed to higher capacity utilization, lower input costs and operational improvements.
 
e.l.f. Beauty
sells premium quality cosmetic and skincare products with broad appeal at accessible price points ($3-15) under the e.l.f., Well People, and Keys Soulcare brands.
 
The company reported strong financial results with sales exceeding expectations across major categories despite tough comparisons and experienced market share gains across the majority of the top 10 beauty brands on the market.
TOP PERFORMANCE DETRACTORS
New Fortress Energy
develops, finances and constructs liquified natural gas (“LNG”) assets and related infrastructure.
 
The company brings low-cost U.S. natural gas to foreign markets through LNG and in some cases owns the power generation assets in those foreign countries. The company reported solid results driven by downstream operations during the period.
 
However, first LNG deliveries from one of the company’s projects was delayed and the corresponding cash flow pushed out.
Five Below
is a U.S. retailer offering on-trend merchandise at extreme value price-points.
 
Shares were pressured as recent quarterly results were disappointing, with sales, margins, and earnings falling short of expectations.
 
While total unit growth was strong during the period, same-store sales were negative due to weaker traffic trends.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $1,000,000 initial investment at the beginning of the
 
period in a broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $1,000,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
Since Inception
Small-Mid Cap Growth Fund Class R6
1.34%6.90%6.87%7.24%
Russell 3000® Index
13.56%23.13%14.14%13.84%
Russell 2500™ Growth Index
3.93%9.02%7.58%7.70%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$1,864,134
Number of portfolio holdings
77
Net advisory fees paid (in $000s)
$1,941
Portfolio turnover rate (six months)
24%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
BWX Technologies, Inc.2.6%
e.l.f. Beauty, Inc.2.5%
Encompass Health Corp.2.4%
Freshpet, Inc.2.2%
Carlyle Group, Inc.2.1%
Chemed Corp.2.1%
Advanced Drainage Systems, Inc.2.0%
Tyler Technologies, Inc.1.9%
Brink's Co.1.8%
Axon Enterprise, Inc.1.8%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting
information
at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Small-Mid Cap
Value Fund
Class I /
ISMVX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Small-Mid Cap Value Fund Class I (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Small-Mid Cap Value Fund Class I$430.85%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned -0.75% (net of fees) for the 6 months ended June 30,
2024
. The Fund underperformed its benchmark, the Russell 2500
®
Value Index, which returned 1.50% and underperformed the Russell 3000
®
Index, a broad measure of market performance, which returned 13.56%.
The Fund’s underperformance versus its benchmark was primarily driven by poor stock selection in the Consumer Discretionary, Materials, and Industrials sectors. Despite negative performance, the Fund had a positive all
oc
ation effect in 9 of the 11 Global Industry Classification Standard economic sectors during the period. Specifically, the Fund benefited from an overweight position to the Industrials and Information Technology sectors and an underweight position to the Financials and Communications Services sectors.
TOP PERFORMANCE CONTRIBUTORS
Expro’s
subsidiaries provide energy services, with an extensive portfolio of capabilities that spans well construction, well flow management, subsea well access and well intervention and integrity solutions. The company has recovered from prior one-off delays.
Ralph Lauren
designs clothing and accessories, operating in the men’s, women’s, children’s apparel, accessories, fragrances, and home furnishing segments. Ralph Lauren’s increased marketing spend has been able to attract a younger demographic and boost same store sales.
Encompass Health
provides inpatient rehabilitative healthcare services, and operates inpatient rehabilitation hospitals, outpatient rehabilitation satellites, and home health agencies. Encompass reported another top and bottom-line earnings beat, which drove much of the performance.
TOP PERFORMANCE DETRACTORS
QuidelOrtho
is a diagnostics company with offerings across various settings including labs, transfusion medicine, point of care, and molecular diagnostics. Despite a slight earnings beat in the company’s most recent quarter, QuidelOrtho struggled with performance during the period.
Bloomin’ Brands
owns and operates a chain of casual dining restaurants. Even after reaffirming guidance for the year and increased strength in their Carrabba’s and Outback restaurants, Bloomin’s shares suffered large losses during the period. Weak traffic and same stores sales growth has been under pressure, as the strength of the lower-end consumer remains in question.
Cracker Barrel Old Country Store
owns and operates restaurants, which serve various southern-style breakfast, lunch, and dinner dishes. Cracker Barrel came under pressure as traffic remains below pre-pandemic levels at their locations, which has forced management to lower revenue guidance for 2024. The company’s investments in technology and advertising, coupled with stress on the lower-end consumer have been major headwinds for the stock throughout the period.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024
 
(or for the life of the Fund, if shorter). It assumes a $500,000 initial investment at the beginning of the period in a broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $500,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
Since Inception
Small-Mid Cap Value Fund Class I
(0.75)%5.65%
Russell 3000® Index
13.56%25.21%
Russell 2500
®
Value Index
1.50%12.22%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund
net assets (in $000s)
$2,690
Number of portfolio holdings
86
Net advisory fees paid (in $000s)
$0
Portfolio turnover rate (six months)
29%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund,
representing
percentage of the total
net
assets of the Fund.
Top Ten Holdings
Taylor Morrison Home Corp.1.6%
ABM Industries, Inc.1.6%
Qorvo, Inc.1.5%
Ingredion, Inc.1.5%
Commercial Metals Co.1.5%
Tecnoglass, Inc.1.5%
Healthpeak Properties, Inc.1.4%
Avnet, Inc.1.4%
SM Energy Co.1.4%
U.S. Foods Holding Corp.1.4%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Small-Mid Cap
Value Fund
Class R6 / RSMVX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Small-Mid Cap Value Fund Class R6 (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Small-Mid Cap Value Fund Class R6$400.80%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned -0.75% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its be
nch
mark, the Russell 2500
®
Value Index, which returned 1.50% and underperformed the Russell 3000
®
Index, a broad measure of market performance, which returned 13.56%.
The Fund’s underperformance versus its benchmark was primarily driven by poor stock selection in the Consumer Discretionary, Materials, and Industrials sectors. Despite negative performance, the Fund had a positive allocation effect in 9 of the 11 Global Industry Classification Standard economic sectors during the period. Specifically, the Fund benefited from an overweight position to the Industrials and Information Technology sectors and an underweight position to the Financials and Communications Services sectors.
TOP PERFORMANCE CONTRIBUTORS
Expro’s
subsidiaries provide energy services, with an extensive portfolio of capabilities that spans well construction, well flow management, subsea well access and well intervention and integrity solutions. The company has recovered from prior one-off delays.
Ralph Lauren
designs clothing and accessories, operating in the men’s, women’s, children’s apparel, accessories, fragrances, and home furnishing segments. Ralph Lauren’s increased marketing spend has been able to attract a younger demographic and boost same store sales.
Encompass Health
provides inpatient rehabilitative healthcare services, and operates inpatient rehabilitation hospitals, outpatient rehabilitation satellites, and home health agencies. Encompass reported another top and bottom-line earnings beat, which drove much of the performance.
TOP PERFORMANCE
DETRACTORS
QuidelOrtho
is a diagnostics company with offerings across various settings including labs, transfusion medicine, point of care, and molecular diagnostics. Despite a slight earnings beat in the company’s most recent quarter, QuidelOrtho struggled with performance during the period.
Bloomin’ Brands
owns and operates a chain of casual dining restaurants. Even after reaffirming guidance for the year and increased strength in their Carrabba’s and Outback restaurants, Bloomin’s shares suffered large losses during the period. Weak traffic and same stores sales growth has been under pressure, as the strength of the lower-end consumer remains in question.
Cracker Barrel Old Country Store
owns and operates restaurants, which serve various southern-style breakfast, lunch, and dinner dishes. Cracker Barrel came under pressure as traffic remains below pre-pandemic levels at their locations, which has forced management to lower revenue guidance for 2024. The company’s investments in technology and advertising, coupled with stress on the lower-end consumer have been major headwinds for the stock throughout the period.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $1,000,000 initial investment at the beginning of the
 
period in a broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $1,000,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
Since Inception
Small-Mid Cap Value Fund Class R6
(0.75)%5.70%
Russell 3000® Index
13.56%25.21%
Russell 2500® Value Index
1.50%12.22%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$2,690
Number of portfolio holdings
86
Net advisory fees paid (in $000s)
$0
Portfolio turnover rate (six months)
29%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing
percentage
of the total net assets of the Fund.
Top Ten Holdings
Taylor Morrison Home Corp.1.6%
ABM Industries, Inc.1.6%
Qorvo, Inc.1.5%
Ingredion, Inc.1.5%
Commercial Metals Co.1.5%
Tecnoglass, Inc.1.5%
Healthpeak Properties, Inc.1.4%
Avnet, Inc.1.4%
SM Energy Co.1.4%
U.S. Foods Holding Corp.1.4%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Small Cap Growth Fund
Class I / WBSIX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Small Cap Growth Fund Class I (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblair
funds
.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Small Cap Growth Fund Class I$500.99%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 7.84% (net of fees) for the 6 months ended June 30, 2024. The Fund outperformed its benchmark, the Russell 2000
®
Growth Index, which returned 4.44% and underperformed the Russell 3000
®
Index, a broad measure of market performance, which returned 13.56%.
Outperformance was attributable to stock specific dynamics. The portfolio benefited from strong selection in Consumer Staples, including our positions in Vital Farms and e.l.f. Beauty, and Health Care, including our positions in Insmed and Encompass Health. Our position in Sylvamo (Materials) also contributed positively to performance. Top detractors year-to-date included New Fortress Energy (Energy), Inspire Medical (Health Care) Amicus Therapeutics (Health Care) and Treace Medical Concepts (Health Care). Industrials stock selection, including our position in Shoals Technologies Group, as well as not owning MicroStrategy (Information Technology), dampened relative results. From a style perspective, stocks with strong price momentum generally outperformed in the period which was a modest headwind to relative performance given our typical below-benchmark exposure to momentum.
TOP PERFORMANCE CONTRIBUTORS
Vital Farms
is the leader in the U.S. pasture-raised egg market. During the period, Vital Farms
reported
strong sales growth driven by a combination of volume and pricing as well as materially higher than expected earnings. We continue to believe Vital Farms will be a significant beneficiary as the broader egg industry evolves to cage-free production and Vital further builds out their farmer network.
Insmed
is a commercial stage biopharmaceutical company focusing on rare/orphan diseases. Insmed’s commercial drug, Arikayce, targets refractory non-tuberculous mycobacterium lung disease, with intellectual property protection through 2035 and no current competition in active development. The company announced positive results from its ASPEN Phase 3 study of brensocatib in non-cystic fibrosis bronchiectasis that demonstrated strong results. Insmed expects to file for commercial approval in late 2024 and is anticipating a commercial launch by mid-2025.
TOP PERFORMANCE DETRACTORS
New Fortress Energy
develops, finances and constructs liquified natural gas (“LNG”) assets and related infrastructure. While the company reported solid earnings results, first LNG deliveries from one of the company’s projects was delayed and the corresponding cash flow pushed out. We continue to believe New Fortress is entering a phase where capital spending should trend lower, driving attractive returns through capital deployment and new projects.
Shoals Technologies
provides electrical balance of system solutions for solar projects and electrical vehicle charging networks. During the period, the company reported revenue results that were below expectations and lowered 2024 guidance due to industry-wide project delays resulting from customer supply chain challenges.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024
 
(or for the life of the Fund, if shorter). It assumes a $500,000 initial investment at the beginning of the period in a broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $500,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Small Cap Growth Fund Class I
7.84%12.73%9.76%10.61%
Russell 3000® Index
13.56%23.13%14.14%12.15%
Russell 2000® Growth Index4.44%9.14%6.17%7.39%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund
Statistics
Fund net assets (in $000s)
$822,617
Number of portfolio holdings
91
Net advisory fees paid (in $000s)
$1,860
Portfolio turnover rate (six months)
29%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the
total
net assets of the Fund.
Top Ten Holdings
Casella Waste Systems, Inc.2.2%
Brink's Co.2.1%
BWX Technologies, Inc.2.1%
Insmed, Inc.1.9%
Verra Mobility Corp.1.8%
Encompass Health Corp.1.7%
e.l.f. Beauty, Inc.1.6%
Guidewire Software, Inc.1.6%
Skyline Champion Corp.1.6%
Baldwin Insurance Group, Inc.1.6%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Small Cap Growth Fund
Class N / WBSNX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Small Cap Growth Fund Class N (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Small Cap Growth Fund Class N$621.24%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 7.71% (net of fees) for the 6 months ended June 30, 2024. The Fund outperformed its benchmark, the Russell 2000
®
Growth Index, which returned 4.44% and underperformed the Russell 3000
®
Index, a broad measure of
market
performance, which returned 13.56%.
Outperformance was attributable to stock specific dynamics. The portfolio benefited from strong selection in Consumer Staples, including our positions in Vital Farms and e.l.f. Beauty, and Health Care, including our positions in Insmed and Encompass Health. Our position in Sylvamo (Materials) also contributed positively to performance. Top detractors year-to-date included New Fortress Energy (Energy), Inspire Medical (Health Care) Amicus Therapeutics (Health Care) and Treace Medical Concepts (Health Care). Industrials stock selection, including our position in Shoals Technologies Group, as well as not owning MicroStrategy (Information Technology), dampened relative results. From a style perspective, stocks with strong price momentum generally outperformed in the period which was a modest headwind to relative performance given our typical below-benchmark exposure to momentum.
TOP PERFORMANCE CONTRIBUTORS
Vital Farms
is the leader in the U.S. pasture-raised egg market. During the period, Vital Farms reported strong sales growth driven by a combination of volume and pricing as well as materially higher than expected earnings. We continue to believe Vital Farms will be a significant beneficiary as the broader
egg
industry evolves to cage-free production and Vital further builds out their farmer network.
Insmed
is a commercial stage biopharmaceutical company focusing on rare/orphan diseases. Insmed’s commercial drug, Arikayce, targets refractory non-tuberculous mycobacterium lung disease, with intellectual property protection through 2035 and no current competition in active development. The company announced positive results from its ASPEN Phase 3 study of brensocatib in non-cystic fibrosis bronchiectasis that demonstrated strong results. Insmed expects to file for commercial approval in late 2024 and is anticipating a commercial launch by mid-2025.
TOP PERFORMANCE DETRACTORS
New Fortress Energy
develops, finances and constructs liquified natural gas (“LNG”) assets and related infrastructure. While the company reported solid earnings results, first LNG deliveries from one of the company’s projects was delayed and the corresponding cash flow pushed out. We continue to believe New Fortress is entering a phase where capital spending should trend lower, driving attractive returns through capital deployment and new projects.
Shoals Technologies
provides electrical balance of system solutions for solar projects and electrical vehicle charging networks. During the period, the company reported revenue results that were below expectations and lowered 2024 guidance due to industry-wide project delays resulting from customer supply chain challenges.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $10,000 initial investment at the beginning of the period in a
 
broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $10,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Small Cap Growth Fund Class N
7.71%12.46%9.48%10.34%
Russell 3000® Index
13.56%23.13%14.14%12.15%
Russell 2000® Growth Index
4.44%9.14%6.17%7.39%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$822,617
Number of portfolio
holdings
91
Net advisory fees paid (in $000s)
$491
Portfolio turnover rate (six months)
29%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing
percentage
of the total net assets of the Fund.
Top Ten Holdings
Casella Waste Systems, Inc.2.2%
Brink's Co.2.1%
BWX Technologies, Inc.2.1%
Insmed, Inc.1.9%
Verra Mobility Corp.1.8%
Encompass Health Corp.1.7%
e.l.f. Beauty, Inc.1.6%
Guidewire Software, Inc.1.6%
Skyline Champion Corp.1.6%
Baldwin Insurance Group, Inc.1.6%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Small Cap Growth Fund
Class R6 / WBSRX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Small Cap Growth Fund Class R6 (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Small Cap Growth Fund Class R6$470.94%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 7.88% (net of fees) for the 6 months ended June 30, 2024. The Fund outperformed its benchmark, the Russell 2000
®
Growth Index, which returned 4.44% and underperformed the Russell 3000
®
Index, a broad measure of market performance, which returned 13.56%.
Outperformance was attributable to stock specific dynamics. The portfolio benefited from strong selection in Consumer Staples, including our positions in Vital Farms and e.l.f. Beauty, and Health Care, including our positions in Insmed and Encompass Health. Our position in Sylvamo (Materials) also contributed positively to performance. Top detractors year-to-date included New Fortress Energy (Energy), Inspire Medical (Health Care) Amicus Therapeutics (Health Care) and Treace Medical Concepts (Health Care). Industrials
stoc
k selection, including our position in Shoals Technologies Group, as well as not owning MicroStrategy (Information Technology), dampened relative results. From a style perspective, stocks with strong price momentum generally outperformed in the period which was a modest headwind to relative performance given our typical below-benchmark exposure to momentum.
TOP PERFORMANCE CONTRIBUTORS
Vital Farms
is the leader in the U.S. pasture-raised egg market. During the period, Vital Farms reported strong sales growth driven by a combination of volume and pricing as well as materially higher than
expected
earnings. We continue to believe Vital Farms will be a significant beneficiary as the broader egg industry evolves to cage-free production and Vital further builds out their farmer network.
Insmed
is a commercial stage biopharmaceutical company focusing on rare/orphan diseases. Insmed’s commercial drug, Arikayce, targets refractory non-tuberculous mycobacterium lung disease, with intellectual property protection through 2035 and no current competition in active development. The company announced positive results from its ASPEN Phase 3 study of brensocatib in non-cystic fibrosis bronchiectasis that demonstrated strong results. Insmed expects to file for commercial approval in late 2024 and is anticipating a commercial launch by mid-2025.
TOP PERFORMANCE DETRACTORS
New Fortress Energy
develops, finances and constructs liquified natural gas (“LNG”) assets and related infrastructure. While the company reported solid earnings results, first LNG deliveries from one of the company’s projects was delayed and the corresponding cash flow pushed out. We continue to believe New Fortress is entering a phase where capital spending should trend lower, driving attractive returns through capital deployment and new projects.
Shoals Technologies
provides electrical balance of system solutions for solar projects and electrical vehicle charging networks. During the period, the company reported revenue results that were below expectations and lowered 2024 guidance due to industry-wide project delays resulting from customer supply chain challenges.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $1,000,000 initial investment at the beginning of the
 
period in a broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $1,000,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
Since Inception
Small Cap Growth Fund Class R6
7.88%12.82%9.83%9.47%
Russell 3000® Index
13.56%23.13%14.14%13.84%
Russell 2000® Growth Index
4.44%9.14%6.17%6.12%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$822,617
Number of portfolio holdings
91
Net advisory fees paid (in $000s)
$851
Portfolio turnover rate (six months)
29%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Casella Waste Systems, Inc.2.2%
Brink's Co.2.1%
BWX Technologies, Inc.2.1%
Insmed, Inc.1.9%
Verra Mobility Corp.1.8%
Encompass Health Corp.1.7%
e.l.f. Beauty, Inc.1.6%
Guidewire Software, Inc.1.6%
Skyline Champion Corp.1.6%
Baldwin Insurance Group, Inc.1.6%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Small Cap Value Fund
Class I / ICSCX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Small Cap Value Fund Class I (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Small Cap Value Fund Class I$450.89%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned -1.95% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its benchmark, the Russell 2000
®
Value Index, which returned -0.85% and underperformed the Russell 3000
®
Index, a broad measure of mark
et
performance, which returned 13.56%.
The Fund’s underperformance versus its benchmark was driven by poor stock selection in the Consumer Discretionary, Materials, and Industrials sectors. Despite negative performance, the Fund had positive stock selection in 7 of the 11 Global Industry Classification Standard economic sectors during the period. The Fund’s sector allocations were additive to relative performance primarily due to an
underweight
position to the Financials sector and an overweight position to the Industrials sector
TOP PERFORMANCE CONTRIBUTORS
Expro’s
subsidiaries provide energy services, with an extensive portfolio of capabilities that spans well construction, well flow management, subsea well access and well intervention and integrity solutions. The company has recovered from prior one-off delays.
Tower Semiconductor
is an independent foundry providing semiconductor integrated circuits manufacturing and related design services. Tower Semiconductor has
 
benefitted from the growing success in their Silicon Photonics business, which has been used in data centers to fuel artificial intelligence.
Granite Construction
 is a heavy civil construction and transportation contractor, which services both the public and private sector. Granite has benefitted from tailwinds related to increased infrastructure spend, as well as “at-risk” projects finally rolling off.  
TOP PERFORMANCE DETRACTORS
Ryerson Holding 
is the second largest metal service center business in the United States and also operates through a network of roughly 100 locations globally. Ryerson’s weakness in the period was due to a recent earnings miss driven by higher-than-expected costs, attributed to recent University Park, enterprise resource planning initiatives in addition to declining carbon prices throughout the quarter. Inventory build and profit missed also contributed to a cash flow miss during the period.
Titan Machinery 
is one of the largest dealers of Case-New Holland agricultural and construction machines and sells new/used equipment, as well as parts and service. Titan’s struggles during the year-to-date period have been due to agriculture spend that is below the 20-year average, which has caused compressed margins.
Bloomin’ Brands
owns and operates a chain of casual dining restaurants. Even after reaffirming guidance for the year and increased strength in their
 
Carrabba’s and Outback restaurants, Bloomin’s shares suffered large losses during the period. Weak traffic and same stores sales growth has been under pressure, as the strength of the lower-end consumer remains in question.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024
 
(or for the life of the Fund, if shorter). It assumes a $500,000 initial investment at the beginning of the period in a broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $500,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Small Cap Value Fund Class I
(1.95)%6.54%6.69%7.11%
Russell 3000® Index
13.56%23.13%14.14%12.15%
Russell 2000
®
Value Index
(0.85)%10.90%7.07%6.23%
On July 16, 2021, the Fund acquired the assets and assumed the liabilities of the ICM Small Company Portfolio (the “Predecessor Fund”) in a reorganization (the “Reorganization”). The Predecessor Fund’s (Institutional Class shares) performance and financial history have been adopted by Class I shares of the Fund following the Reorganization. The performance of the Predecessor Fund has not been restated to reflect the annual operating expenses of Class I shares of the Fund. Because the Fund had different fees and expenses than the Predecessor Fund, the Predecessor Fund would therefore have had different performance results if it was subject to the Fund’s fees and expenses.
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit
www.williamblairfunds.com/funds/total-returns/
for the most recent performance information.
Key Fund Statistics
Fund net assets (in $000s)
$1,315,970
Number of portfolio holdings
110
Net advisory fees paid (in $000s)
$2,961
Portfolio turnover rate (six months)
13%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Expro Group Holdings NV1.5%
Verint Systems, Inc.1.4%
Kite Realty Group Trust1.3%
Taylor Morrison Home Corp.1.3%
SM Energy Co.1.3%
Granite Construction, Inc.1.3%
John Wiley & Sons, Inc.1.3%
Tri Pointe Homes, Inc.1.3%
ABM Industries, Inc.1.3%
Cal-Maine Foods, Inc.1.2%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Small Cap Value Fund
Class N / WBVNX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Small Cap Value Fund Class N (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Small Cap Value Fund Class N$581.15%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned -2.05% (net of fees) for the 6 months ended June 30, 2024. The Fund u
nde
rperformed its benchmark, the Russell 2000
®
Value Index, which returned -0.85% and underperformed the Russell 3000
®
Index, a broad measure of market performance, which returned
13.56
%.
The Fund’s underperformance versus its benchmark was driven by poor stock selection in the Consumer Discretionary, Materials, and Industrials sectors. Despite negative performance, the Fund had positive stock selection in 7 of the 11 Global Industry Classification Standard economic sectors during the period. The Fund’s sector allocations were additive to relative performance primarily due to an underweight position to the Financials sector and an overweight position to the Industrials sector
TOP PERFORMANCE CONTRIBUTORS
Expro’s
subsidiaries provide energy services, with an extensive portfolio of capabilities that spans well construction, well flow management, subsea well access and well intervention and integrity solutions. The company has recovered from prior one-off delays.
Tower Semiconductor
is an independent foundry providing semiconductor integrated circuits manufacturing and related design services. Tower Semiconductor has
 
benefitted from the growing success in their Silicon Photonics business, which has been used in data centers to fuel artificial intelligence.
Granite Construction
 is a heavy civil construction and transportation contractor, which services both the public and private sector. Granite has benefitted from tailwinds related to increased infrastructure spend, as well as “at-risk” projects finally rolling off.  
TOP PERFORMANCE DETRACTORS
Ryerson Holding 
is the second largest metal service center business in the United States and also operates through a network of roughly 100 locations globally. Ryerson’s weakness in the period was due to a recent earnings miss driven by higher-than-expected costs, attributed to recent University Park, enterprise resource planning initiatives in addition to declining carbon prices throughout the quarter. Inventory build and profit missed also contributed to a cash flow miss during the period.
Titan Machinery 
is one of the largest dealers of Case-New Holland agr
icultu
ral and construction machines and sells new/used equipment, as well as parts and service. Titan’s struggles during the year-to-date period have been due to agriculture spend that is below the 20-year average, which has caused compressed margins.
Bloomin’ Brands
owns and operates a chain of casual dining restaurants. Even after reaffirming guidance for the year and increased strength in their
 
Carrabba’s and Outback restaurants, Bloomin’s shares suffered large losses during the period. Weak traffic and same stores sales growth has been under pressure, as the strength of the lower-end consumer remains in question.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $10,000 initial investment at the beginning of the period in a
 
broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $10,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
Since Inception
Small Cap Value Fund Class N
(2.05)%6.29%1.43%
Russell 3000® Index
13.56%23.13%8.25%
Russell 2000® Value Index
(0.85)%10.90%1.47%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$1,315,970
Number of portfolio holdings
110
Net advisory fees paid (in $000s)
$9
Portfolio turnover rate (six months)
13%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage
of
the total net assets
of
the Fund.
Top Ten Holdings
Expro Group Holdings NV1.5%
Verint Systems, Inc.1.4%
Kite Realty Group Trust1.3%
Taylor Morrison Home Corp.1.3%
SM Energy Co.1.3%
Granite Construction, Inc.1.3%
John Wiley & Sons, Inc.1.3%
Tri Pointe Homes, Inc.1.3%
ABM Industries, Inc.1.3%
Cal-Maine Foods, Inc.1.2%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-
742
-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Small Cap Value Fund
Class R6 / WBVRX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Small Cap Value Fund Class R6 (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Small Cap Value Fund Class R6$400.79%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned -1.88% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its benchmark, the Russell 2000
®
Value Index, which returned -0.85% and underperformed the Russell 3000
®
Index, a broad measure of market performance, which returned
13.56
%.
The Fund’s underperformance versus its benchmark was driven by poor stock selection in the Co
nsu
mer Discretionary, Materials, and Industrials sectors. Despite negative performance, the Fund had positive stock selection in 7 of the 11 Global Industry Classification Standard economic sectors during the period. The Fund’s sector allocations were additive to relative performance primarily due to an underweight position to the Financials sector and an overweight position to the Industrials sector
TOP PERFORMANCE CONTRIBUTORS
Expro’s
subsidiaries provide energy services, with an extensive portfolio of capabilities that spans well construction, well flow management, subsea well access and well intervention and integrity solutions. The company has recovered from prior one-off delays.
Tower Semiconductor
is an independent foundry providing semiconductor integrated circuits manufacturing and related design services. Tower Semiconductor has
 
benefitted from the growing success in their Silicon Photonics business, which has been used in data centers to fuel artificial intelligence.
Granite Construction
 is a heavy civil construction and transportation contractor, which services both the public and private sector. Granite has benefitted from tailwinds related to increased infrastructure spend, as well as “at-risk” projects finally rolling off.  
TOP PERFORMANCE DETRACTORS
Ryerson Holding 
is the second largest metal service center business in the United States and also operates through a network of roughly 100 locations globally. Ryerson’s weakness in the period was due to a recent earnings miss driven by higher-than-expected costs, attributed to recent University Park, enterprise resource planning initiatives in addition to declining carbon prices throughout the quarter. Inventory build and profit missed also contributed to a cash flow miss during the period.
Titan Machinery 
is one of the largest dealers of Case-New Holland agricultural and construction machines and sells new/used equipment, as well as parts and service. Titan’s struggles during the year-to-date period have been due to agriculture spend that is below the 20-year average, which has caused compressed margins.
Bloomin’ Brands
owns and operates a chain of casual dining restaurants. Even after reaffirming guidance for the year and increased strength in their
 
Carrabba’s and Outback restaurants, Bloomin’s shares suffered large losses during the period. Weak traffic and same stores sales growth has been under pressure, as the strength of the lower-end consumer remains in question.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $1,000,000 initial investment at the beginning of the
 
period in a broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $1,000,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
Since Inception
Small Cap Value Fund Class R6
(1.88)%6.64%1.78%
Russell 3000
®
Index
13.56
%
23.13
%
8.25
%
Russell 2000
®
Value Index
(0.85
)
%
10.90
%
1.47
%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$1,315,970
Number of portfolio holdings
110
Net advisory fees paid (in $000s)
$1,861
Portfolio turnover rate (six months)
13%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Expro Group Holdings NV1.5%
Verint Systems, Inc.1.4%
Kite Realty Group Trust1.3%
Taylor Morrison Home Corp.1.3%
SM Energy Co.1.3%
Granite Construction, Inc.1.3%
John Wiley & Sons, Inc.1.3%
Tri Pointe Homes, Inc.1.3%
ABM Industries, Inc.1.3%
Cal-Maine Foods, Inc.1.2%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-
800
-
742
-
7272
.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Global Leaders Fund
Class I / WGFIX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Global Leaders Fund Class I (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Global Leaders Fund Class I
$
45
0.90%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 8.06% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its benchmark, the MSCI All Country World IMI (net), which returned 10.28%. The Fund's benchmark is also a broad measure of market performance.
Relative underperformance was driven by stock selection across sectors and in the United States. Selection in Information Technology (“IT”), Industrials, and Financials were the primary detractors. While the overweight to IT was additive, negative selection was driven by an underweight position in NVIDIA as it was purchased late in the quarter. Within Industrials, Airbus and Old Dominion Freight Line were the primary detractors, while AIA weighed on Financials returns. Partly offsetting underperformance was a combination of sector allocation driven by an overweight to IT and underweight to Consumer Staples and stock selection in Communication Services. Within IT, the overweight to a strong sector and selection outside of the U.S. including positions in TSMC and MediaTek were both additive.
TOP PERFORMANCE CONTRIBUTORS
TSMC
, the world‐leading independent foundry with unique manufacturing capabilities in leading-edge chips, and MediaTek both strengthened on strong fundamental performance. Inventories normalized signaling a cyclical r
e
covery in demand is underway and as cutting-edge technology companies globally outperformed on expectations for AI to drive long-term demand.
MediaTek
is a global leader in wireless integrated circuit design. MediaTek has significantly narrowed the technological gap to Qualcomm and is gaining market share driven by design improvements, competitive cost position, and localization trends.
Meta Platforms
, the leading global social media platform operating Facebook and Instagram, outperformed on strong fundamental results as revenue growth and forward guidance exceeded expectations including significant growth in advertising revenue from China. Additionally, Meta announced its AI roadmap, its first-ever cash dividend expected to be paid out on a quarterly basis going forward, and an increase in share repurchases
TOP PERFORMANCE DETRACTORS
Airbus
underperformed after it informed airlines that delivery of some its planes may be delayed, citing supply chain challenges particularly from engine suppliers. Additionally, the ramp-up in production of the A320 aircraft is likely to be pushed out later than previously communicated for the same reasons. This will mean cutting guidance for this year on earnings and cash flow generation. The company also took a one-time write-down on its space division during the quarter.
Old Dominion
is the second largest less-than-truckload freight carrier in the U.S. The stock was down in April on disappointing near-term operations as trucking volumes failed to point to a recovery in market conditions and lowered growth expectations.
AIA Group
is a leading provider of insurance throughout Asia. The company declined and was exited during the period on mixed earnings results primarily due to challenging market conditions in China, including elevated medical claims, which led to policy price increases and lower investment returns on Chinese government bonds
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $500,000 initial investment at the beginning of the period in a
 
broad-based securities market index which is also generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $500,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Global Leaders Fund Class I
8.06% 12.08% 9.57% 9.00%
MSCI All Country World IMI (net)
10.28% 18.40% 10.36% 8.17%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$
103,624
Number of portfolio holdings
68
Net advisory fees paid (in $000s)
$245
Portfolio turnover rate (six months)
22%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the
total
net assets
of
the
Fund.
Top Ten Holdings
Microsoft Corp. 6.6%
Taiwan Semiconductor Manufacturing Co. Ltd. 4.4%
Alphabet, Inc. 4.4%
Amazon.com, Inc. 3.5%
Mastercard, Inc. 3.2%
Novo Nordisk AS 3.2%
NVIDIA Corp. 3.1%
Meta Platforms, Inc. 2.7%
Atlas Copco AB 2.1%
ASML Holding NV 2.1%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-
800
-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Global Leaders Fund
Class N / WGGNX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Global Leaders Fund Class N (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Global Leaders Fund Class N $58 1.15%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 7.96% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its benchmark, the MSCI All Country World IMI (net), which returned 10.28%. The Fund's benchmark is also a broad measure of market performance.
Relative underperformance was driven by stock selection across sectors and in the United States. Selection in Information Technology (“IT”), Industrials, and Financials were the primary detractors. While the overweight to I
T
was additive, negative selection was driven by an underweight position in NVIDIA as it was purchased late in the quarter. Within Industrials, Airbus and Old Dominion Freight Line were the primary detractors, while AIA weighed on Financials returns. Partly offsetting underperformance was a combination of sector allocation driven by an overweight to IT and underweight to Consumer Staples and stock selection in Communication Services. Within IT, the overweight to a strong sector and selection outside of the U.S. including positions in TSMC and MediaTek were both additive.
TOP PERFORMANCE CONTRIBUTORS
TSMC
, the world‐leading independent foundry with unique manufacturing capabilities in leading-edge chips, and MediaTek both strengthened on strong fundamental performance. Inventories normalized signaling a cyclical recovery in demand is underway and as cutting-edge technology companies globally outperformed on expectations for AI to drive long-term demand.
MediaTek
is a global leader in wireless integrated circuit design. MediaTek has significantly narrowed the technological gap to Qualcomm and is gaining market share driven by design improvements, competitive cost position, and localization trends.
Meta Platforms
, the leading global social media platform operating Facebook and Instagram, outperformed on strong fundamental results as revenue growth and forward guidance exceeded expectations including significant growth in advertising revenue from China. Additionally, Meta announced its AI roadmap, its first-ever cash dividend expected to be paid out on a quarterly basis going forward, and an increase in share repurchases
TOP PERFORMANCE DETRACTORS
Airbus
underperformed after it informed airlines that delivery of some its planes may be delayed, citing supply chain challenges particularly from engine suppliers. Additionally, the ramp-up in production of the A320 aircraft is likely to be pushed out later than previously communicated for the same reasons. This will mean cutting guidance for this year on earnings and cash flow generation. The company also took a one-time write-down on its space division during the quarter.
Old Dominion
is the second largest less-than-truckload freight carrier in the U.S. The stock was down in April on disappointing near-term operations as trucking volumes failed to point to a recovery in market conditions and lowered growth expectations.
AIA Group
is a leading provider of insurance throughout Asia. The company declined and was exited during the period on mixed earnings results primarily due to challenging market conditions in China, including elevated medical claims, which led to policy price increases and lower investment returns on Chinese government bonds
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024
 
(or for the life of the Fund, if shorter). It assumes a $10,000 initial investment at the beginning of the period in a broad-based securities market index which is also generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $10,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Global Leaders Fund Class N
7.96% 11.75% 9.31% 8.71%
MSCI All Country World IMI (net)
10.28% 18.40% 10.36% 8.17%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$103,624
Number of portfolio holdings
68
Net advisory fees paid (in $000s)
$25
Portfolio turnover rate (six months)
22%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Microsoft Corp. 6.6%
Taiwan Semiconductor Manufacturing Co. Ltd. 4.4%
Alphabet, Inc. 4.4%
Amazon.com, Inc. 3.5%
Mastercard, Inc. 3.2%
Novo Nordisk AS 3.2%
NVIDIA Corp. 3.1%
Meta Platforms, Inc. 2.7%
Atlas Copco AB 2.1%
ASML Holding NV 2.1%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Global Leaders Fund
Class R6 / BGGIX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Global Leaders Fund Class R6 (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Global Leaders Fund Class R6 $43 0.85%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 8.06% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its benchmark, the MSCI All Country World IMI (net), which returned 10.28%. The Fund's benchmark is also a broad measure of market performance.
Relative underperformance was driven by stock selection across sectors and in the United States. S
ele
ction in Information Technology (“IT”), Industrials, and Financials were the primary detractors. While the overweight to IT was additive, negative selection was driven by an underweight position in NVIDIA as it was purchased late in the quarter. Within Industrials, Airbus and Old Dominion Freight Line were the primary detractors, while AIA weighed on Financials returns. Partly offsetting underperformance was a combination of sector allocation driven by an overweight to IT and underweight to Consumer Staples and stock selection in Communication Services. Within IT, the overweight to a strong sector and selection outside of the U.S. including positions in TSMC and MediaTek were both additive.
TOP PERFORMANCE CONTRIBUTORS
TSMC
, the world‐leading independent foundry with unique manufacturing capabilities in leading-edge chips, and MediaTek both strengthened on strong fundamental performance. Inventories normalized signaling a cyclical recovery in demand is underway and as cutting-edge technology companies globally outperformed on expectations for AI to drive long-term demand.
MediaTek
is a global leader in wireless integrated circuit design. MediaTek has significantly narrowed the technological gap to Qualcomm and is gaining market share driven by design improvements, competitive cost position, and localization trends.
Meta Platforms
, the leading global social media platform operating Facebook and Instagram, outperformed on strong fundamental results as revenue growth and forward guidance exceeded expectations including significant growth in advertising revenue from China. Additionally, Meta announced its AI roadmap, its first-ever cash dividend expected to be paid out on a quarterly basis going forward, and an increase in share repurchases
TOP PERFORMANCE DETRACTORS
Airbus
underperformed after it informed airlines that delivery of some its planes may be delayed, citing supply chain challenges particularly from engine suppliers. Additionally, the ramp-up in production of the A320 aircraft is likely to be pushed out later than previously communicated for the same reasons. This will mean cutting guidance for this year on earnings and cash flow generation. The company also took a one-time write-down on its space division during the quarter.
Old Dominion
is the second largest less-than-truckload freight carrier in the U.S. The stock was down in April on disappointing near-term operations as trucking volumes failed to point to a recovery in market conditions and lowered growth expectations.
AIA Group
is a leading provider of insurance throughout Asia. The company declined and was exited during the period on mixed earnings results primarily due to challenging market conditions in China, including elevated medical claims, which led to policy price increases and lower investment returns on Chinese government bonds
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $1,000,000 initial investment at the beginning of the period in a broad-based securities market index which is also generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $1,000,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Global Leaders Fund Class R6
8.06% 12.06% 9.63% 9.05%
MSCI All Country World IMI (net)
10.28% 18.40% 10.36% 8.17%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$103,624
Number of portfolio holdings
68
Net advisory fees paid (in $000s)
$50
Portfolio turnover rate (six months)
22%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Microsoft Corp. 6.6%
Taiwan Semiconductor Manufacturing Co. Ltd. 4.4%
Alphabet, Inc. 4.4%
Amazon.com, Inc. 3.5%
Mastercard, Inc. 3.2%
Novo Nordisk AS 3.2%
NVIDIA Corp. 3.1%
Meta Platforms, Inc. 2.7%
Atlas Copco AB 2.1%
ASML Holding NV 2.1%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair International
Leaders Fund
Class I / WILIX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair International Leaders Fund Class I (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
International Leaders Fund Class I$450.90%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 5.97% (net of fees) for the 6 months ended June 30, 2024. The Fund outperformed its benchmark, the MSCI All Country World ex-U.S. IMI (net), which returned 5.28%. The Fund's benchmark is also a broad measure of market performance.
Outperformance was primarily driven by allocation effect, with an overweight to Information Technology, where the semiconductor industry has been notably strong, and underweights to Real Estate and Consumer Staples adding value, while an underweight to Financials detracted. Selection effect was negative primarily within Financials and Consumer Discretionary. This was partly offset by p
osit
ive selection within Health Care. Within Financials, the portfolio’s underweight positioning in banks has been negative.
TOP PERFORMANCE CONTRIBUTOR
Novo Nordisk
continues its strength on optimism about the size of the market for its GLP-1 drugs currently used for diabetes and weight loss. Full-year results came in better than expected and GLP-1 sales were ahead of consensus.
TOP PERFORMANCE DETRACTORS
Itaú Unibanco
is a high-quality and diversified universal bank in Brazil. The stock was purchased earlier this year as we believe the fundamental outlook is improving along with a reasonable valuation. Itaú Unibanco underperformed along with Brazil on the macroeconomic environment and interest rate cuts.
HDFC Bank
is a high-quality Indian banking franchise with a healthy funding and capital base, solid asset quality, and high recurring fee income. The stock was down meaningfully in the first quarter as the first earnings release following the long-expected merger with HDFC Ltd. showed delays in executing on the synergies of the merger.
lululemon
traded down after reporting fourth-quarter results in which revenues were in line and earnings per share beat estimates, but guidance for 2024 came in weaker than consensus estimates. The market focused on a deceleration in North America demand, where growth fell to single digits.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $500,000 initial investment at the beginning of the period in a
 
broad-based securities market index which is also generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $500,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
International Leaders Fund Class I
5.97%7.38%5.48%6.23%
MSCI All Country World ex-U.S. IMI (net)
5.28%11.57%5.62%3.92%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$1,172,797
Number of portfolio holdings
64
Net advisory fees paid (in $000s)
$1,715
Portfolio turnover rate (six months)
27%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Taiwan Semiconductor Manufacturing Co. Ltd.4.8%
ASML Holding NV4.0%
Novo Nordisk AS3.7%
Tokyo Electron Ltd.2.4%
MediaTek, Inc.2.4%
Reliance Industries Ltd.2.3%
ICON PLC2.3%
Atlas Copco AB2.2%
London Stock Exchange Group PLC2.1%
Hoya Corp.2.1%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of
these
materials
within 30
days
after
receiving
your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair International
Leaders Fund
Class N / WILNX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair International Leaders Fund Class N (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
International Leaders Fund Class N $58 1.15%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 5.81% (net of fees) for the 6 months ended June 30, 2024. The Fund outperformed its benchmark, the MSCI All Country World ex-
U.S
. IMI (net), which returned 5.28%. The Fund's benchmark is also a broad measure of market performance.
Outperformance was primarily driven by allocation eff
e
ct, with an overweight to Information Technology, where the semiconductor industry has been
notably
strong, and underweights to Real Estate and Consumer Staples adding value, while an underweight to Financials detracted. Selection effect was negative primarily within Financials and Consumer Discretionary. This was partly offset by positive selection within Health Care. Within Financials, the portfolio’s underweight positioning in banks has been negative.
TOP PERFORMANCE CONTRIBUTOR
Novo Nordisk
continues its strength on optimism about the size of the market for its GLP-1 drugs currently used for diabetes and weight loss. Full-year results came in better than expected and GLP-1 sales were ahead of consensus.
TOP PERFORMANCE DETRACTORS
Itaú Unibanco
is a high-quality and diversified universal bank in Brazil. The stock was purchased earlier this year as we believe the fundamental outlook is improving along with a reasonable valuation. Itaú Unibanco underperformed along with Brazil on the macroeconomic environment and interest rate cuts.
HDFC Bank
is a high-quality Indian banking franchise with a healthy funding and capital base, solid asset quality, and high recurring fee income. The stock was down meaningfully in the first quarter as the first earnings release following the long-expected merger with HDFC Ltd. showed delays in executing on the synergies of the merger.
lululemon
traded down after reporting fourth-quarter results in which revenues were in line and earnings per share beat estimates, but guidance for 2024 came in weaker than consensus estimates. The market focused on a deceleration in North America demand, where growth fell to single digits.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024
 
(or for the life of the Fund, if shorter). It assumes a $10,000 initial investment at the beginning of the period in a broad-based securities market index which is also generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $10,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
International Leaders Fund Class N
5.81% 7.11% 5.22% 5.97%
MSCI All Country World ex-U.S. IMI (net)
5.28% 11.57% 5.62% 3.92%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$1,172,797
Number of portfolio holdings
64
Net advisory fees paid (in $000s)
$124
Portfolio turnover rate (six months)
27%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Taiwan Semiconductor Manufacturing Co. Ltd. 4.8%
ASML Holding NV 4.0%
Novo Nordisk AS 3.7%
Tokyo Electron Ltd. 2.4%
MediaTek, Inc. 2.4%
Reliance Industries Ltd. 2.3%
ICON PLC 2.3%
Atlas Copco AB 2.2%
London Stock Exchange Group PLC 2.1%
Hoya Corp. 2.1%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies,
financial
reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair International
Leaders Fund
Class R6 / WILJX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair International Leaders Fund Class R6 (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
International Leaders Fund Class R6 $43 0.85%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 5.96% (net of fees) for the 6 months ended June 30, 2024. The Fund outperformed its benchmark, the MSCI All Country World ex-U.S. IMI (net), which returned 5.28%. The Fund's benchmark is also a broad measure of market performance.
Outperformance was primarily driven by allocation effect, with an overweight to Information Technology, whe
r
e the semiconductor industry has been notably strong, and underweights to Real Estate and Consumer Staples adding value, while an underweight to Financials detracted. Selection effect was negative primarily within Financials and Consumer Discretionary. This was partly offset by positive selection within Health Care. Within Financials, the portfolio’s underweight positioning in banks has been negative.
TOP PERFORMANCE CONTRIBUTOR
Novo Nordisk
continues its strength on optimism about the size of the market for its GLP-1 drugs currently used for diabetes and weight loss. Full-year results came in better than expected and GLP-1 sales were ahead of consensus.
TOP PERFORMANCE DETRACTORS
Itaú Unibanco
is a high-quality and diversified universal bank in Brazil. The stock was purchased earlier this year as we believe the fundamental outlook
is
improving along with a reasonable valuation. Itaú Unibanco underperformed along with Brazil on the macroeconomic environment and interest rate cuts.
HDFC Bank
is a high-quality Indian banking franchise with a healthy funding and capital base, solid asset quality, and high recurring fee income. The stock was down meaningfully in the first quarter as the first earnings release following the long-expected merger with HDFC Ltd. showed delays in executing on the synergies of the merger.
lululemon
traded down after reporting fourth-quarter results in which revenues were in line and earnings per share beat estimates, but guidance for 2024 came in weaker than consensus estimates. The market focused on a deceleration in North America demand, where growth fell to single digits.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $1,000,000 initial investment at the beginning of the period in a broad-based securities market index which is also generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $1,000,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
International Leaders Fund Class R6
5.96% 7.43% 5.54% 6.31%
MSCI All Country World ex-U.S. IMI (net)
5.28% 11.57% 5.62% 3.92%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$1,172,797
Number of portfolio holdings
64
Net advisory fees paid (in $000s)
$2,416
Portfolio turnover rate (six months)
27%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Taiwan Semiconductor Manufacturing Co. Ltd. 4.8%
ASML Holding NV 4.0%
Novo Nordisk AS 3.7%
Tokyo Electron Ltd. 2.4%
MediaTek, Inc. 2.4%
Reliance Industries Ltd. 2.3%
ICON PLC 2.3%
Atlas Copco AB 2.2%
London Stock Exchange Group PLC 2.1%
Hoya Corp. 2.1%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports
and
other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair International
Growth Fund
Class I / BIGIX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair International Growth Fund Class I (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
International Growth Fund Class I$500.99%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 4.60% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its
benchmark
, the MSCI All Country World ex-U.S. IMI (net), which returned 5.28%. The Fund's benchmark is also a broad measure of market performance.
Selection effect was negative primarily within Industrials and Information Technology (“IT”). This was partly offset by positive selection within Health Care. Allocation effect was positive driven by overweight exposure to IT and underweight exposure to the Materials and Real Estate sectors.
TOP PERFORMANCE
CONTRIBUTOR
Novo Nordisk
continues its strength on optimism about the size of the market for its GLP-1 drugs currently used for diabetes and weight loss. Full-year results came in better than expected and GLP-1 sales were ahead of consensus.
TOP PERFORMANCE DETRACTORS
Ryanair
is a discount airline in Europe. The airline offers low-cost, no-frills flights primarily catering to leisure travelers. The stock tr
ad
ed down in the second quarter as the weaker economic environment in Europe is impacting pricing heading into the peak travel season.
Vinci
is a French infrastructure company that operates motorways, airports, renewables, and networks with operations in over 100 countries. The stock traded down during the quarter due to the snap elections called by President Emmanuel Macron following the European parliamentary elections where his opposition party, the far-right National Rally, did very well. Polls leading up to the French parliamentary election showed strong support for the National Rally, leading to weakness in French stocks but even more so for Vinci because the far-right party has vocalized a preference for nationalizing France’s infrastructure. While the likelihood of this happening is slim, the probability is non-zero and this led to volatility in the stock during the quarter.
DSV
is one of the largest freight forwarders in the world, providing transport and logistics solutions such as cargo consolidation, package transfer, documentation, and insurance. The stock was down after a soft start to the year, particularly on air and sea yields, which impacted cash flow generation.
Fund Performance
The following graph compares the
initial
and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $500,000 initial investment at the beginning of the period in a
 
broad-based securities market index which is also generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $500,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
International Growth Fund Class I
4.60%8.48%6.37%4.74%
MSCI All Country World ex-U.S. IMI (net)
5.28%11.57%5.62%3.92%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$1,475,594
Number of portfolio holdings
169
Net advisory fees paid (in $000s)
$4,237
Portfolio turnover rate (six months)
18%
Graphical
Representation
of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Taiwan Semiconductor Manufacturing Co. Ltd.3.6%
Novo Nordisk AS2.6%
ASML Holding NV2.6%
Samsung Electronics Co. Ltd. 1.5%
London Stock Exchange Group PLC1.4%
3i Group PLC 1.4%
Reliance Industries Ltd.1.4%
Keyence Corp.1.3%
Tokio Marine Holdings, Inc. 1.3%
SAP SE 1.3%
Sector
Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional
Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a
single
copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair International
Growth Fund
Class N / WBIGX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair International Growth Fund Class N (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
International Growth Fund Class N
$
62
1.24%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 4.47% (net of fees) for the 6 months ended June 30, 2024.
The
Fund underperformed its benchmark, the MSCI All Country World ex-U.S. IMI (net), which returned 5.28%. The Fund's benchmark is also a broad measure of market performance.
Selection effect was negative primarily within Industrials and Information Technology (“IT”). This was partly offset by positive selection within Health Care. Allocation effect was positive driven by overweight exposure to IT and underweight exposure to the Materials and Real Estate sectors.
TOP PERFORMANCE CONTRIBUTOR
Novo Nordisk
continues its strength on optimism about the size of the
market
for its GLP-1 drugs currently used for diabetes and wei
ght
loss. Full-year results came in better than expected and GLP-1 sales were ahead of consensus.
TOP PERFORMANCE DETRACTORS
Ryanair
is a discount airline in Europe. The airline offers low-cost, no-frills flights primarily catering to leisure travelers. The stock traded down in the second quarter as the weaker economic environment in Europe is impacting pricing heading into the peak travel season.
Vinci
is a French infrastructure company that operates motorways, airports, renewables, and networks with operations in over 100 countries. The stock traded down during the quarter due to the snap elections called by President Emmanuel Macron following the European parliamentary elections where his opposition party, the far-right National Rally, did very well. Polls leading up to the French parliamentary election showed strong support for the National Rally, leading to weakness in French stocks but even more so for Vinci because the far-right party has vocalized a preference for nationalizing France’s infrastructure. While the likelihood of this happening is slim, the probability is non-zero and this led to volatility in the stock during the quarter.
DSV
is one of the largest freight forwarders in the world, providing transport and logistics solutions such as cargo consolidation, package transfer, documentation, and insurance. The stock was down after a soft start to the year, particularly on air and sea yields, which impacted cash flow generation.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024
 
(or for the life of the Fund, if shorter). It assumes a $10,000 initial investment at the beginning of the period in a broad-based securities market index which is also generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $10,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
International Growth Fund Class N
4.47%8.23%6.08%4.44%
MSCI All Country World ex-U.S. IMI (net)
5.28%11.57%5.62%3.92%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund
Statistics
Fund net assets (in $000s)
$1,475,594
Number of portfolio holdings
169
Net advisory fees paid (in $000s)
$1,144
Portfolio turnover rate (six months)
18%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Taiwan Semiconductor Manufacturing Co. Ltd.3.6%
Novo Nordisk AS2.6%
ASML Holding NV2.6%
Samsung Electronics Co. Ltd. 1.5%
London Stock Exchange Group PLC1.4%
3i Group PLC 1.4%
Reliance Industries Ltd.1.4%
Keyence Corp.1.3%
Tokio Marine Holdings, Inc. 1.3%
SAP SE 1.3%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional
Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair International
Growth Fund
Class R6 / WBIRX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair International Growth Fund Class R6 (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
International Growth Fund Class R6
$
47
0.94%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 4.60% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its benchmark, the MSCI All Country World ex-U.S. IMI (net), which returned 5.28%. The Fund's benchmark is also a broad measure of market performance.
Selection effect was negative primarily within Industrials and Information Technology (“IT”). This was partly offset by positive selection within Health Care. Allocation effect was positive driven by overweight exposure to IT and underweight exposure to the Materials and Real Estate sectors.
TOP PERFORMANCE CONTRIBUTOR
Novo Nordisk
continues its strength on optimism about the size of the market for its GLP-1 drugs
currently
used for diabetes and weight loss. Full-year results came in better than expected and GLP-1 sales were ahead of consensus.
TOP PERFORMANCE DETRACTORS
Ryanair
is a discount airline in Europe. The airline offers low-cost, no-frills flights primarily catering to leisure travelers. The stock traded d
o
wn in the second quarter as the weaker economic environment in Europe is impacting pricing heading into the peak travel season.
Vinci
is a French infrastructure company that operates motorways, airports, renewables, and networks with operations in over 100 countries. The stock traded down during the quarter due to the snap elections called by President Emmanuel Macron following the European parliamentary elections where his opposition party, the far-right National Rally, did very well. Polls leading up to the French parliamentary election showed strong support for the National Rally, leading to weakness in French stocks but even more so for Vinci because the far-right party has vocalized a preference for nationalizing France’s infrastructure. While the likelihood of this happening is slim, the probability is non-zero and this led to volatility in the stock during the quarter.
DSV
is one of the largest freight forwarders in the world, providing transport and logistics solutions such as cargo consolidation, package transfer, documentation, and insurance. The stock was down after a soft start to the year, particularly on air and sea yields, which impacted cash flow generation.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $1,000,000 initial investment at the beginning of the period in a broad-based securities market index which is also generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $1,000,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
Since Inception
International Growth Fund Class R6
4.60%8.52%6.44%6.65%
MSCI All Country World ex-U.S. IMI (net)
5.28%11.57%5.62%5.43%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$1,475,594
Number of portfolio holdings
169
Net advisory fees paid (in $000s)
$646
Portfolio turnover rate (six months)
18%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of
the
total net assets of the Fund.
Top Ten Holdings
Taiwan Semiconductor Manufacturing Co. Ltd.3.6%
Novo Nordisk AS2.6%
ASML Holding NV2.6%
Samsung Electronics Co. Ltd. 1.5%
London Stock Exchange Group PLC1.4%
3i Group PLC 1.4%
Reliance Industries Ltd.1.4%
Keyence Corp.1.3%
Tokio Marine Holdings, Inc. 1.3%
SAP SE 1.3%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe
them
to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Institutional
International Growth Fund
Institutional Class / WBIIX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Institutional International Growth Fund Institutional Class (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Institutional International Growth Fund $47 0.94%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 4.58% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its benchmark, the MSCI All Country World ex-U.S. IMI (net), which returned 5.28%. The Fund's benchmark is also a broad measure of market performance.
Selection effect was negative primarily within Industrials and Information Technology (“IT”). This was partly offset by positive selection within Health Care. Allocation effect was positive driven by overweight exposure to IT and underweight
exposure
to the Materials and Real Estate sectors.
TOP PERFORMANCE CONTRIBUTOR
Novo Nordisk
continues its strength on optimism about the size of the market for its GLP-1 dru
gs cu
rrently used for diabetes and weight loss. Full-year results came in better than expected and GLP-1 sales were ahead of consensus.
TOP PERFORMANCE DETRACTORS
Ryanair
is a discount airline in Europe. The airline offers low-cost, no-frills flights primarily catering to leisure travelers. The stock traded down in the second quarter as the weaker economic environment in Europe is impacting pricing heading into the peak travel season.
Vinci
is a French infrastructure company that operates motorways, airports, renewables, and networks with operations in over 100 countries. The stock traded down during the quarter due to the snap elections called by President Emmanuel Macron following the European parliamentary elections where his opposition party, the far-right National Rally, did very well. Polls leading up to the French parliamentary election showed strong support for the National Rally, leading to weakness in French stocks but even more so for Vinci because the far-right party has vocalized a preference for nationalizing France’s infrastructure. While the likelihood of this happening is slim, the probability is non-zero and this led to volatility in the stock during the quarter.
DSV
is one of the largest freight forwarders in the world, providing transport and logistics solutions such as cargo consolidation, package transfer, documentation, and insurance. The stock was down after a soft start to the year, particularly on air and sea yields, which impacted cash flow generation.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024. It assumes a $5,000,000 initial investment at the beginning of the period in a broad-based securities market index which is also generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $5,000,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Institutional International Growth Fund
4.58% 8.24% 6.51% 4.88%
MSCI All Country World ex-U.S. IMI (net)
5.28% 11.57% 5.62% 3.92%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$972,862
Number
of portfolio holdings
169
Net advisory fees paid (in $000s)
$4,173
Portfolio turnover rate (six months)
19%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Taiwan Semiconductor Manufacturing Co. Ltd. 3.6%
Novo Nordisk AS 2.7%
ASML Holding NV 2.6%
Samsung Electronics Co. Ltd. 1.5%
London Stock Exchange Group PLC 1.4%
3i Group PLC 1.4%
Reliance Industries Ltd. 1.4%
Keyence Corp. 1.3%
Tokio Marine Holdings, Inc. 1.3%
SAP SE 1.3%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also
request
this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair International
Small Cap Growth Fund
Class I / WISIX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair International Small Cap Growth Fund Class I (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
International Small Cap Growth Fund Class I$551.10%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned -2.10% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its benchmark, the MSCI All Country World ex-U.S. Small Cap Index (net), which returned 2.78% and underperformed the MSCI All Country World ex-U.S. IMI (net), a broad measure of market performance, which returned 5.28%.
Japan positioning and stock selection has hampered relative performance, particularly our exposure to domestic-oriented, higher-value, human-capital-intensive business models. These companies have been
punished
more recently by wage inflation and a significant weakening in the yen. Underperformance has been driven by weaker stock selection within Japan Industrials and Information Technology (“IT”), which more than
offset
positive stock selection within Health Care, Communication Services and Consumer Staples.
TOP PERFORMANCE CONTRIBUTORS
Pro Medicus
has developed a best-of-breed software solution for enterprise medical imaging. Through its proprietary streaming architecture, it is the market leader in viewer speed, implementation speed, and clinical efficiency. In addition to solid results earlier this year, the company went on to secure five new contracts with a combined value of $45 million across various customer types.
CTS Eventim
, based in Germany, is Europe’s largest live music ticketing company and the third-largest event promoter in the world. The ticketing segment produces and sells tickets for concerts, theater, art, sports, and other events. The share price advanced on solid full year 2023 results, as the company issued encouraging guidance in 2024 calling for a moderate rise in total revenue and for earnings to remain at the level reported in 2023.
TOP PERFORMANCE DETRACTORS
Technopro
is a top Japanese engineering staffing company, with a focus on the IT engineering segment. The company has achieved double-digit revenue growth, through a combination of successful recruiting and an active price management strategy.
SHIFT
is the beneficiary of Japanese enterprise digitalization, which is currently in its early stages via its outsourced software testing business. The share price declined on softer results, mainly attributable to declines in revenue and utilization per engineer, due to changes in customer needs, such as inquiries for larger projects.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024
 
(or for the life of the Fund, if shorter). It assumes a $500,000 initial investment at the beginning of the period in a broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $500,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
International Small Cap Growth Fund Class I
(2.10)%3.20%3.39%3.00%
MSCI All Country World ex-U.S. IMI (net)
5.28%11.57%5.62%3.92%
MSCI All Country World ex-U.S. Small Cap Index (net)2.78%11.26%6.13%4.44%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$191,737
Number of portfolio
holdings
113
Net advisory fees paid (in $000s)
$421
Portfolio turnover rate (six months)
23%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Pro Medicus Ltd.2.6%
Diploma PLC2.2%
North West Co., Inc.2.0%
Beazley PLC2.0%
Lifco AB1.9%
Beijer Ref AB1.9%
ASPEED Technology, Inc.1.8%
Hemnet Group AB1.8%
CTS Eventim AG & Co. KGaA1.8%
D'ieteren Group 1.7%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can
also
request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair International
Small Cap Growth Fund
Class N / WISNX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair International Small Cap Growth Fund Class N (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
International Small Cap Growth Fund Class N$681.35%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned -2.21% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its benchmark, the MSCI All Country World ex-U.S. Small Cap Index (net), which
returned
2.78% and underperformed the MSCI All Country World ex-U.S. IMI (net), a broad measure of market performance, which returned 5.28%.
Japan positioning and stock selection has hampered relative performance, particularly our exposure to domestic-oriented, higher-value, human-capital-intensive business models. These companies have been punished more recently by wage inflation and a significant weakening in the yen. Underperformance has been driven by weaker stock selection within Japan Industrials and
Information
Technology (“IT”), which more than offset positive stock selection within Health Care, Communication Services and Consumer Staples.
TOP PERFORMANCE CONTRIBUTORS
Pro Medicus
has developed a best-of-breed software solution for enterprise medical imaging. Through its proprietary streaming architecture, it is the market leader in viewer speed, implementation speed, and clinical efficiency. In addition to solid results earlier this year, the company went o
n t
o secure five new contracts with a combined value of $45 million across various customer types.
CTS Eventim
, based in Germany, is Europe’s largest live music ticketing company and the third-largest event promoter in the world. The ticketing segment produces and sells tickets for concerts, theater, art, sports, and other events. The share price advanced on solid full year 2023 results, as the company issued encouraging guidance in 2024 calling for a moderate rise in total revenue and for earnings to remain at the level reported in 2023.
TOP PERFORMANCE DETRACTORS
Technopro
is a top Japanese engineering staffing company, with a focus on the IT engineering segment. The company has achieved double-digit revenue growth, through a combination of successful recruiting and an active price management strategy.
SHIFT
is the beneficiary of Japanese enterprise digitalization, which is currently in its early stages via its outsourced software testing business. The share price declined on softer results, mainly attributable to declines in revenue and utilization per engineer, due to changes in customer needs, such as inquiries for larger projects.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $10,000 initial investment at the beginning of the period in a
 
broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $10,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
International Small Cap Growth Fund Class N
(2.21)%2.97%3.13%2.72%
MSCI All Country World ex-U.S. IMI (net)
5.28%11.57%5.62%3.92%
MSCI All Country World ex-U.S. Small Cap Index (net)
2.78%11.26%6.13%4.44%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares
.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$191,737
Number of portfolio holdings
113
Net advisory fees
paid
(in $000s)
$6
Portfolio turnover rate (six months)
23%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Pro Medicus Ltd.2.6%
Diploma PLC2.2%
North West Co., Inc.2.0%
Beazley PLC2.0%
Lifco AB1.9%
Beijer Ref AB1.9%
ASPEED Technology, Inc.1.8%
Hemnet Group AB1.8%
CTS Eventim AG & Co. KGaA1.8%
D'ieteren Group 1.7%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information
about
the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair International
Small Cap Growth Fund
Class R6 / WIISX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair International Small Cap Growth Fund Class R6 (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
International Small Cap Growth Fund Class R6$531.05%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned -2.09% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its b
ench
mark, the MSCI All Country World ex-U.S. Small Cap Index (net), which returned 2.78% and underperformed the MSCI All Country World ex-U.S. IMI (net), a broad measure of market performance, which returned 5.28%.
Japan positioning and stock selection has hampered relative performance, particularly our exposure to domestic-oriented, higher-value, human-capital-intensive business models. These companies have been punished more recently by wage inflation and a significant weakening in the yen. Underperformance has been driven by weaker stock selection within Japan Industrials and Information Technology (“IT”), which more than offset positive stock selection within Health Care, Communication Services and Consumer Staples.
TOP PERFORMANCE CONTRIBUTORS
Pro Medicus
has developed a best-of-breed software solution for enterprise medical imaging. Through its proprietary streaming architecture, it is the market leader in viewer speed, implementation speed, and clinical efficiency. In addition to solid results earlier this year, the company went on to secure five new contracts with a combined value of $45 million across various customer types.
CTS Eventim
, based in Germany, is Europe’s largest live music ticketing company and the third-largest event promoter in the world. The ticketing segment produces and sells tickets for concerts, theater, art, sports, and other events. The share price advanced on solid full year 2023 results, as the company issued encouraging guidance in 2024 calling for a moderate rise in total revenue and for earnings to remain at the
level
reported in 2023.
TOP PERFORMANCE DETRACTORS
Technopro
is a top Japanese engineering staffing company, with a focus on the IT engineering segment. The company has achieved double-digit revenue growth, through a combination of successful recruiting and an active price management strategy.
SHIFT
is the beneficiary of Japanese enterprise digitalization, which is currently in its early stages via its outsourced software testing business. The share price declined on softer results, mainly attributable to declines in revenue and utilization per engineer, due to changes in customer needs, such as inquiries for larger projects.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $1,000,000 initial investment at the beginning of the
 
period in a broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $1,000,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
International Small Cap Growth Fund Class R6
(2.09)%3.24%3.49%3.09%
MSCI All Country World ex-U.S. IMI (net)
5.28%11.57%5.62%3.92%
MSCI All Country World ex-U.S. Small Cap Index (net)
2.78%11.26%6.13%4.44%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$191,737
Number of portfolio holdings
113
Net advisory fees paid (in $000s)
$582
Portfolio turnover rate (six months)
23%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Pro Medicus Ltd.2.6%
Diploma PLC2.2%
North West Co., Inc.2.0%
Beazley PLC2.0%
Lifco AB1.9%
Beijer Ref AB1.9%
ASPEED Technology, Inc.1.8%
Hemnet Group AB1.8%
CTS Eventim AG & Co. KGaA1.8%
D'ieteren Group 1.7%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials
within
30
days
after
receiving
your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Emerging Markets
Leaders Fund
Class I / WBELX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Emerging Markets Leaders Fund Class I (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Emerging Markets Leaders Fund Class I$500.99%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 4.45% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its benchmark, the MSCI Emerging Markets Index (net), which returned 7.49%. The Fund's benchmark is also a broad measure of market performance.
The underperformance was driven by a combination of an overweight to Latin America and stock selection within the Financials and Information Technology (“IT”) sectors. Within Financials, HDFC and BTG Pactual were notable detractors to relative results, while Globant and Totvs were meaningful detractors in IT. Partly offsetting these effects were positive sector allocation led by an overweight to IT and specifically IT hardware including SK Hynix and MediaTek, and an underweight to Materials, as well as stock selection within the Consumer Discre
tio
nary sector.
TOP PERFORMANCE CONTRIBUTORS
MediaTek
and
Hynix
both strengthened on strong fundamental performance as inventories normalized signaling a cyclical recovery in demand is underway and as cutting-edge technology companies globally outperformed on expectations for AI to drive long-term demand. Hynix is a South Korea–based AI enabler and a pure-play manufacturer of memory semiconductors. MediaTek is a global leader in wireless interface controller design. MediaTek has significantly narrowed the technological gap to Qualcomm and is gaining market share driven by design improvements, competitive cost position, and localization trends.
Mahindra & Mahindra
was the largest driver of positive results within Consumer Discretionary. M&M is an Indian conglomerate with primary business units in farm equipment and automotive, focusing on SUVs and small commercial vehicles. The stock outperformed on strong fundamental results as automotive firms have gained market share offsetting seasonal weaknesses in the agricultural business.
TOP PERFORMANCE DETRACTORS
HDFC Bank
is a high-quality Indian banking franchise with a healthy funding and capital base, solid asset quality, and high recurring fee income. The stock was down meaningfully in the first quarter as the first earnings release following the long-expected
merger
with HDFC Ltd. showed delays in executing on the synergies of the merger. The stock underperformed as slowing deposit growth put pressure on interest margins and the loan-to-deposit ratio expanded.
BTG Pactual
is a leading investment bank and wealth and asset manager in Brazil with a presence across Latin America. The stock weakness was driven by higher interest rates and a deteriorated macroeconomic backdrop in Brazil, coupled with weakening currency.
Totvs
is a leading enterprise resource planning provider in Brazil. While fundamentals showed continued growth in Totvs’s core business, margins declined on one-off expenses and an increase in customer acquisition spending leading to weaker share prices in the first quarter. The stock recovered and outperformed the broad Brazilian market in the second quarter, but overall market weakness led to negative absolute performance.
Globant
is a pure-play IT service provider in Latin America that focuses on emerging technologies in the fastest-growing segments in IT services (social, mobile, analytics, cloud). Given the weaker macroeconomic environment, the stock has underperformed. Globant continues to outperform its peer group in a softer macroeconomic environment given its leadership in digital IT services and strong track record of execution (including around artificial intelligence (“AI”)).
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $500,000 initial investment at the beginning of the period in a
 
broad-based securities market index which is also generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $500,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Emerging Markets Leaders Fund Class I
4.45%5.89%1.26%2.06%
MSCI Emerging Markets Index (net)
7.49%12.55%3.10%2.79%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$203,619
Number of portfolio holdings
62
Net advisory fees paid (in $000s)
$47
Portfolio turnover rate (six months)
35%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Taiwan Semiconductor Manufacturing Co. Ltd.11.0%
Samsung Electronics Co. Ltd. 7.8%
Tencent Holdings Ltd.5.3%
MediaTek, Inc.3.5%
Kotak Mahindra Bank Ltd.3.0%
Reliance Industries Ltd.3.0%
WEG SA2.8%
SK Hynix, Inc. 2.7%
MercadoLibre, Inc.2.6%
Bank Central Asia Tbk. PT2.5%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and
proxy
voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family.
Unless
we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you
separate
copies of these materials within 30
days
after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Emerging Markets
Leaders Fund
Class N / WELNX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Emerging Markets Leaders Fund Class N (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Emerging Markets Leaders Fund Class N$621.24%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 4.47% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its benchmark, the MSCI Emerging Markets Index (net), which returned 7.49%. The Fund's benchmark is also a broad measure of market performance.
The underperformance was driven by a combination of an overweight to Latin America and stock selection within the Financials and Information Technology (“IT”) sectors. Within Financials, HDFC and BTG Pactual were notable detractors to relative results, while Globant and Totvs were meaningful detractors in IT. Partly offsetting these effects were positive sector allocation led by an overweight to IT and specifically IT hardware including SK Hynix and MediaTek, and an underweight to Materials, as well as stock selection within the Consumer Discretionary sector.
TOP PERFORMANCE CONTRIBUTORS
MediaTek
and
Hynix
both strengthened on strong fundamental
performance
as inventories normalized
signal
ing a cyclical recovery in demand is underway and as cutting-edge technology companies globally outperformed on expectations for AI to drive long-term demand. Hynix is a South Korea–based AI enabler and a pure-play manufacturer of memory semiconductors. MediaTek is a global leader in wireless interface controller design. MediaTek has significantly narrowed the technological gap to Qualcomm and is gaining market share driven by design improvements, competitive cost position, and localization trends.
Mahindra & Mahindra
was the largest driver of positive results within Consumer Discretionary. M&M is an Indian conglomerate with primary business units in farm equipment and automotive, focusing on SUVs and small commercial vehicles. The stock outperformed on strong fundamental results as automotive firms have gained market share offsetting seasonal weaknesses in the agricultural business.
TOP PERFORMANCE DETRACTORS
HDFC Bank
is a high-quality Indian banking franchise with a healthy funding and capital base, solid asset quality, and high recurring fee income. The stock was down meaningfully in the first quarter as the first earnings release following the long-expected merger with HDFC Ltd. showed delays in executing on the synergies of the merger. The stock underperformed as slowing deposit growth put pressure on interest margins and the loan-to-deposit ratio expanded.
BTG Pactual
is a leading investment bank and wealth and asset manager in Brazil with a presence across Latin America. The stock weakness was driven by higher interest rates and a deteriorated macroeconomic backdrop in Brazil, coupled with weakening currency.
Totvs
is a leading enterprise resource planning provider in Brazil. While fundamentals showed continued growth in Totvs’s core business, margins declined on one-off expenses and an increase in customer acquisition spending leading to weaker share prices in the first quarter. The stock recovered and outperformed the broad Brazilian market in the second quarter, but overall market weakness led to negative absolute performance.
Globant
is a pure-play IT service provider in Latin America that focuses on emerging technologies in the fastest-growing segments in IT services (social, mobile, analytics, cloud). Given the weaker macroeconomic environment, the stock has underperformed. Globant continues to outperform its peer group in a softer macroeconomic environment given its leadership in digital IT services and strong track record of execution (including around artificial intelligence (“AI”)).
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024
 
(or for the life of the Fund, if shorter). It assumes a $10,000 initial investment at the beginning of the period in a broad-based securities market index which is also generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $10,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Emerging Markets Leaders Fund Class N
4.47%5.61%1.03%1.79%
MSCI Emerging Markets Index (net)
7.49%12.55%3.10%2.79%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$203,619
Number of portfolio holdings
62
Net advisory fees paid (in $000s)
$4
Portfolio turnover rate (six months)
35%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of
the
total net assets of the Fund.
Top Ten Holdings
Taiwan Semiconductor Manufacturing Co. Ltd.11.0%
Samsung Electronics Co. Ltd. 7.8%
Tencent Holdings Ltd.5.3%
MediaTek, Inc.3.5%
Kotak Mahindra Bank Ltd.3.0%
Reliance Industries Ltd.3.0%
WEG SA2.8%
SK Hynix, Inc. 2.7%
MercadoLibre, Inc.2.6%
Bank Central Asia Tbk. PT2.5%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus,
financial
information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Emerging Markets
Leaders Fund
Class R6 / WELIX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Emerging Markets Leaders Fund Class R6 (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Emerging Markets Leaders Fund Class R6$470.94%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 4.46% (net of fees) for the 6 months ended June 30, 2024. The Fund underperformed its benchmark, the MSCI Emerging Markets Index (net), which returned 7.49%. The Fund's benchmark is also a broad measure of market performance.
The underperformance was driven by a combination of an overweight to Latin America and stock selection within the Financials and Information Technology (“IT”) sectors. Within Financials, HDFC and BTG Pactual were notable detractors to relative results, while Globant a
nd
Totvs were meaningful detractors in IT. Partly offsetting these effects were positive sector allocation led by an overweight to IT and specifically IT hardware including SK Hynix and MediaTek, and an underweight to Materials, as well as stock selection within the Consumer Discretionary sector.
TOP PERFORMANCE CONTRIBUTORS
MediaTek
and
Hynix
both strengthened on strong fundamental performance as inventories normalized signaling a cyclical recovery in demand is underway and as cutting-edge technology companies globally outperformed on expectations for AI to drive long-term demand. Hynix is a South Korea–based AI enabler and a pure-play manufacturer of memory semiconductors. MediaTek is a global leader in wireless interface controller design. MediaTek has significantly narrowed the technological gap to Qualcomm and is gaining market share driven by design improvements, competitive cost position, and localization trends.
Mahindra & Mahindra
was the largest driver of positive results within Consumer Discretionary. M&M is an Indian conglomerate with primary business units in farm equipment and automotive, focusing on SUVs and small commercial vehicles. The stock outperformed on strong fundamental results as automotive firms have gained market share offsetting seasonal weaknesses in the agricultural business.
TOP PERFORMANCE DETRACTORS
HDFC Bank
is a high-quality Indian banking franchise with a healthy funding and capital base, solid asset quality, and high recurring fee income. The stock was down meaningfully in the first quarter as the first earnings release following the long-expected merger with HDFC Ltd. showed delays in executing on the synergies of the merger. The stock underperformed as slowing deposit growth put pressure on interest margins and the loan-to-deposit ratio expanded.
BTG Pactual
is a leading investment bank and wealth and asset manager in Brazil with a presence across Latin America. The stock weakness was driven by higher interest rates and a deteriorated macroeconomic backdrop in Brazil, coupled with weakening currency.
Totvs
is a leading enterprise resource planning provider in Brazil. While fundamentals showed continued growth in Totvs’s core business, margins declined on one-off expenses and an increase in customer acquisition spending leading to weaker share prices in the first quarter. The stock recovered and outperformed the broad Brazilian market in the second quarter, but overall market weakness led to negative absolute performance.
Globant
is a pure-play IT service provider in Latin America that focuses on emerging technologies in the fastest-growing segments in IT services (social, mobile, analytics, cloud). Given the weaker macroeconomic environment, the stock has underperformed. Globant continues to outperform its peer group in a softer macroeconomic environment given its leadership in digital IT services and strong track record of execution (including around artificial intelligence (“AI”)).
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $1,000,000 initial investment at the beginning of the period in a broad-based securities market index which is also generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $1,000,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Emerging Markets Leaders Fund Class R6
4.46%5.86%1.31%2.12%
MSCI Emerging Markets Index (net)7.49%12.55%3.10%2.79%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$203,619
Number of portfolio holdings
62
Net advisory fees paid (in $000s)
$899
Portfolio turnover rate (six months)
35%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the F
und.
Top Ten Holdings
Taiwan Semiconductor Manufacturing Co. Ltd.11.0%
Samsung Electronics Co. Ltd. 7.8%
Tencent Holdings Ltd.5.3%
MediaTek, Inc.3.5%
Kotak Mahindra Bank Ltd.3.0%
Reliance Industries Ltd.3.0%
WEG SA2.8%
SK Hynix, Inc. 2.7%
MercadoLibre, Inc.2.6%
Bank Central Asia Tbk. PT2.5%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting
information
at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7
272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving
your
request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Emerging Markets
Growth Fund
Class I / WBEIX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Emerging Markets Growth Fund Class I (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Emerging Markets Growth Fund Class I$500.99%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 12.67% (net of fees) for the 6 months ended June 30,
2024
. The Fund outperformed its benchmark, the MSCI Emerging Markets IMI (net), which returned 7.41%. The Fund's benchmark is also a broad measure of market performance.
Outperformance was driven by a combination of country allocation and stock selection effects. Stock selection was particularly strong within the Industrials sector, particularly electrical equipment companies HD Hyundai Electric Co and ABB India, and within the Consumer Discretionary sector. Additionally, the Information Technology overweighting and Materials underweighting were notable contributors to the positive allocation effect. Partly offsetting these positive effects was negative stock selection within Financials coupled with Consumer Staples, Indonesia, and Mexico overweighting.
TOP PERFORMANCE CONTRIBUTORS
HD Hyundai Electric Co Ltd
is a manufacturer of power transformers and equipment. The stock was added in the middle of the first quarter and accelerated on the back of the company’s strong results and growth outlook, driven by exports into the North American and Middle East markets.
ABB India
is a leader in automation and is benefitting from ongoing electrification and automation efforts in India with a broad set of opportunities. The stock outperformance was driven by robust results that exceeded consensus expectations in the first half of the year. The company delivered strong order growth and margin expansion, as it benefited from favorable mix and positive operating leverage.
Trent
, within Consumer Discretionary, was a notable contributor to relative performance. The company is one of India’s leading fashion and consumer goods retailers with a high-quality product offering, low-cost proposition, and broad range. The stock outperformance in the first half of the year was driven by strong fundamental performance as the company continued to deliver 10% acceleration in same-store sales growth and aggressive store additions with margin expansion amid strong cost control and moderating raw material costs.
TOP PERFORMANCE DETRACTORS
Bank Rakyat Indonesia
underperformed due to weaker results, hampered by increased credit costs and deteriorated loan growth and net interest margin.
AIA
has been dragged down by poor sentiment and macroeconomic environment in China. The company’s fundamental performance has been mixed as it faced elevated medical claims that led to policy price increases and lower investment returns on Chinese government bonds.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $500,000 initial investment at the beginning of the period in a
 
broad-based securities market index which is also generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $500,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Emerging Markets Growth Fund Class I
12.67%17.95%5.95%4.22%
MSCI Emerging Markets IMI (net)
7.41%13.56%3.93%3.09%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$816,758
Number of portfolio holdings
128
Net advisory fees paid (in $000s)
$690
Portfolio turnover rate (six months)
31%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fu
nd
.
Top Ten Holdings
Taiwan Semiconductor Manufacturing Co. Ltd.11.8%
Tencent Holdings Ltd.4.6%
SK Hynix, Inc. 4.5%
Samsung Electronics Co. Ltd. 4.4%
Reliance Industries Ltd.2.5%
MercadoLibre, Inc.2.5%
Bank Central Asia Tbk. PT2.5%
MediaTek, Inc.1.9%
PDD Holdings, Inc.1.6%
NTPC Ltd.1.5%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-
7272
.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Emerging Markets

Growth Fund
Class N / WBENX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Emerging Markets Growth Fund Class N (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Emerging Markets Growth Fund Class N$621.24%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 12.60% (net of fees) for the 6 months ended June 30,
2024
. The Fund outperformed its benchmark, the MSCI Emerging Markets IMI (net), which returned 7.41%. The Fund's benchmark is also a broad measure of market performance.
Outperformance was driven by a combination of country allocation and stock selection effects. Stock selection was particularly strong within the Industrials sector, particularly electrical equipment companies HD Hyundai Electric Co and ABB India, and within the Consumer Discretionary sector. Additionally, the Information Technology overweighting and Materials underweighting were notable contributors to the positive allocation effect. Partly offsetting these positive effects was negative stock selection within Financials coupled with Consumer Staples, Indonesia, and Mexico overweighting.
TOP PERFORMANCE CONTRIBUTORS
HD Hyundai Electric Co Ltd
is a manufacturer of power transformers and equipment. The stock was added in the middle of the first quarter and accelerated on the back of the company’s strong results and growth outlook, driven by exports into the North American and Middle East markets.
ABB India
is a leader in automation and is benefitting from ongoing electrification and automation efforts in India with a broad set of opportunities. The stock outperformance was driven by robust results that exceeded consensus expectations in the first half of the year. The company delivered strong order growth and margin expansion, as it benefited from favorable mix and positive operating leverage.
Trent
, within Consumer Discretionary, was a notable contributor to relative performance. The company is one of India’s leading fashion and consumer goods retailers with a high-quality product offering, low-cost proposition, and broad range. The stock outperformance in the first half of the year was driven by strong fundamental performance as the company continued to deliver 10% acceleration in same-store sales growth and aggressive store additions with margin expansion amid strong cost control and moderating raw material costs.
TOP PERFORMANCE DETRACTORS
Bank Rakyat Indonesia
underperformed due to weaker results, hampered by increased credit costs and deteriorated loan growth and net interest margin.
AIA
has been dragged down by poor sentiment and macroeconomic environment in China. The company’s fundamental performance has been mixed as it faced elevated medical claims that led to policy price increases and lower investment returns on Chinese government bonds.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024
 
(or for the life of the Fund, if shorter). It assumes a $10,000 initial investment at the beginning of the period in a broad-based securities market index which is also generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $10,000
Fund Performance - Growth of 10K
Average Annual Total
Returns
6 Months
1 Year
5 Years
10 Years
Emerging Markets Growth Fund Class N
12.60%17.70%5.69%3.96%
MSCI Emerging Markets IMI (net)
7.41%13.56%3.93%3.09%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$816,758
Number of portfolio holdings
128
Net advisory fees paid (in $000s)
$54
Portfolio turnover rate (six months)
31%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the
Fund.
Top Ten Holdings
Taiwan Semiconductor Manufacturing Co. Ltd.11.8%
Tencent Holdings Ltd.4.6%
SK Hynix, Inc. 4.5%
Samsung Electronics Co. Ltd. 4.4%
Reliance Industries Ltd.2.5%
MercadoLibre, Inc.2.5%
Bank Central Asia Tbk. PT2.5%
MediaTek, Inc.1.9%
PDD Holdings, Inc.1.6%
NTPC Ltd.1.5%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting
information
at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Emerging Markets
Growth Fund
Class R6 / BIEMX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Emerging Markets Growth Fund Class R6 (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Emerging Markets Growth Fund Class R6$470.94%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 12.78% (net of fees) for the 6 months ended June 30,
2024
. The Fund outperformed its benchmark, the MSCI Emerging Markets IMI (net), which returned 7.41%. The Fund's benchmark is also a broad measure of market performance.
Outperformance was driven by a combination of country allocation and stock selection effects. Stock selection was particularly strong within the Industrials sector, particularly electrical equipment companies HD Hyundai Electric Co and ABB India, and within the Consumer Discretionary sector. Additionally, the Information Technology overweighting and Materials underweighting were notable contributors to the positive allocation effect. Partly offsetting these positive effects was negative stock selection within Financials coupled with Consumer Staples, Indonesia, and Mexico overweighting.
TOP PERFORMANCE CONTRIBUTORS
HD Hyundai Electric Co Ltd
is a manufacturer of power transformers and equipment. The stock was added in the middle of the first quarter and accelerated on the back of the company’s strong results and growth outlook, driven by exports into the North American and Middle East markets.
ABB India
is a leader in automation and is benefitting from ongoing electrification and automation efforts in India with a broad set of opportunities. The stock outperformance was driven by robust results that exceeded consensus expectations in the first half of the year. The company delivered strong order growth and margin expansion, as it benefited from favorable mix and positive operating leverage.
Trent
, within Consumer Discretionary, was a notable contributor to relative performance. The company is one of India’s leading fashion and consumer goods retailers with a high-quality product offering, low-cost proposition, and broad range. The stock outperformance in the first half of the year was driven by strong fundamental performance as the company continued to deliver 10% acceleration in same-store sales growth and aggressive store additions with margin expansion amid strong cost control and moderating raw material costs.
TOP PERFORMANCE DETRACTORS
Bank Rakyat Indonesia
underperformed due to weaker results, hampered by increased credit costs and deteriorated loan growth and net interest margin.
AIA
has been dragged down by poor sentiment and macroeconomic environment in China. The company’s fundamental performance has been mixed as it faced elevated medical claims that led to policy price increases and lower investment returns on Chinese government bonds.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $1,000,000 initial investment at the beginning of the period in a broad-based securities market index which is also generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $1,000,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Emerging Markets Growth Fund Class R6
12.78%18.06%6.03%4.31%
MSCI Emerging Markets IMI (net)
7.41%13.56%3.93%3.09%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$816,758
Number of portfolio holdings
128
Net advisory fees paid (in $000s)
$2,412
Portfolio turnover rate (six months)
31%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Taiwan Semiconductor Manufacturing Co. Ltd.11.8%
Tencent Holdings Ltd.4.6%
SK Hynix, Inc. 4.5%
Samsung Electronics Co. Ltd. 4.4%
Reliance Industries Ltd.2.5%
MercadoLibre, Inc.2.5%
Bank Central Asia Tbk. PT2.5%
MediaTek, Inc.1.9%
PDD Holdings, Inc.1.6%
NTPC Ltd.1.5%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these
materials
within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Emerging Markets
ex China Growth Fund
Class I / WXCIX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Emerging Markets ex China Growth Fund Class I (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Emerging Markets ex China Growth Fund Class I$500.99%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 13.83% (net of fees) for the 6 months ended June 30,
2024
. The Fund outperformed its benchmark, the MSCI Emerging Markets ex-China IMI (net), which returned 8.38%. The Fund's benchmark is also a broad measure of market performance.
Outperformance was driven by a combination of country allocation and stock selection effects. Stock selection was strong within the Industrials sector, particularly electrical equipment companies HD Hyundai Electric Co and ABB India, and within the Consumer Discretionary sector. Additionally, Information Technology overweighting and Materials underweighting were notable contributors to the positive allocation effect. Partially offsetting these positive effects was negative stock selection within Financials coupled with Indonesia and Mexico overweighting. Banco BTG Pactual and Bank Rakyat Indonesia hampered relative results within the Financials sector.
TOP PERFORMANCE CONTRIBUTORS
HD Hyundai Electric Co Ltd
is a manufacturer of power transformers and equipment. The stock was added in the middle of the first quarter and accelerated on the back of the company’s strong results and growth outlook, driven by exports into the North American and Middle East markets.
ABB India
is a leader in automation and is benefitting from ongoing electrification and automation efforts in India with a broad set of opportunities. The stock outperformance was driven by robust results that exceeded consensus expectations in the first half of the year. The company
delivered
strong order growth and margin expansion, as it benefited from favorable mix and positive operating leverage.
Trent
, within Consumer Discretionary, was a notable contributor to relative performance. The company is one of India’s leading fashion and consumer goods retailers with a high-quality product offering, low-cost proposition, and broad range. The stock outperformance in the first half of the year was driven by strong fundamental performance as the company continued to deliver 10% acceleration in same-store sales growth and aggressive store additions with margin expansion amid strong cost control and moderating raw material costs.
TOP PERFORMANCE DETRACTORS
Banco BTG Pactual
is a leading investment bank and wealth and asset manager in Brazil with a presence across Latin America. The stock weakness was driven by higher interest rates and a deteriorated macroeconomic backdrop in Brazil, coupled with weakening currency.
Bank Rakyat Indonesia
underperformed due to weaker results, hampered by increased credit costs and deteriorated loan growth and net interest margin.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $500,000 initial investment at the beginning of the period in a
 
broad-based securities market index which is also generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $500,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
Since Inception
Emerging Markets ex China Growth Fund Class I
13.83%25.12%16.24%
MSCI Emerging Markets ex-China IMI (net)
8.38%19.32%14.56%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$25,310
Number of portfolio holdings
107
Net advisory fees paid (in $000s)
$0
Portfolio turnover rate (six months)
39%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Taiwan Semiconductor Manufacturing Co. Ltd.15.3%
Samsung Electronics Co. Ltd. 4.3%
SK Hynix, Inc. 3.8%
MercadoLibre, Inc.2.5%
MediaTek, Inc.2.0%
Bank Central Asia Tbk. PT1.8%
Trent Ltd.1.7%
ABB India Ltd.1.7%
HD Hyundai Electric Co. Ltd.1.5%
Dixon Technologies India Ltd.1.4%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Emerging Markets
ex China Growth Fund
Class R6
/
WXCRX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Emerging Markets ex China Growth Fund Class R6 (the "Fund”) for the period of January 1, 2024, to June 30, 2024.
You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Emerging Markets ex China Growth Fund Class R6$470.94%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 13.91% (net of fees) for the 6 months ended June 30,
2024
. The Fund outperformed its benchmark, the MSCI Emerging Markets ex-China IMI (net), which returned 8.38%. The Fund's benchmark is also a broad measure of market performance.
Outperformance was driven by a combination of country allocation and stock selection effects. Stock selection was strong within the Industrials sector, particularly electrical equipment companies HD Hyundai Electric Co and ABB India, and within the Consumer Discretionary sector. Additionally, Information Technology overweighting and Materials underweighting were notable contributors to the positive allocation effect. Partially offsetting these positive effects was negative stock selection within Financials coupled with Indonesia and Mexico overweighting. Banco BTG Pactual and Bank Rakyat Indonesia hampered relative results within the Financials sector.
TOP PERFORMANCE CONTRIBUTORS
HD Hyundai Electric Co Ltd
is a manufacturer of power transformers and equipment. The
stock
was added in the middle of the first quarter and accelerated on the back of the company’s strong results and growth outlook, driven by exports into the North American and Middle East markets.
ABB India
is a leader in automation and is benefitting from ongoing electrification and automation efforts in India with a broad set of opportunities. The stock outperformance was driven by robust results that exceeded consensus expectations in the first half of the year. The company delivered strong order growth and margin expansion, as it benefited from favorable mix and positive operating leverage.
Trent
, within Consumer Discretionary, was a notable contributor to relative performance. The company is one of India’s leading fashion and consumer goods retailers with a high-quality product offering, low-cost proposition, and broad range. The stock outperformance in the first half of the year was driven by strong fundamental performance as the company continued to deliver 10% acceleration in same-store sales growth and aggressive store additions with margin expansion amid strong cost control and moderating raw material costs.
TOP PERFORMANCE DETRACTORS
Banco BTG Pactual
is a leading investment bank and wealth and asset manager in Brazil with a presence across Latin America. The stock weakness was driven by higher interest rates and a deteriorated macroeconomic backdrop in Brazil, coupled with weakening currency.
Bank Rakyat Indonesia
underperformed due to weaker results, hampered by increased credit costs and deteriorated loan growth and net interest margin.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $1,000,000 initial investment at the beginning of the period in a broad-based securities market index which is also generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $1,000,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
Since Inception
Emerging Markets ex China Growth Fund Class R6
13.91%25.22%16.35%
MSCI Emerging Markets ex-China IMI (net)
8.38%19.32%14.56%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$25,310
Number of portfolio holdings
107
Net advisory fees paid (in $000s)
$0
Portfolio turnover rate (six months)
39%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the
Fund
.
Top Ten Holdings
Taiwan Semiconductor Manufacturing Co. Ltd.15.3%
Samsung Electronics Co. Ltd. 4.3%
SK Hynix, Inc. 3.8%
MercadoLibre, Inc.2.5%
MediaTek, Inc.2.0%
Bank Central Asia Tbk. PT1.8%
Trent Ltd.1.7%
ABB India Ltd.1.7%
HD Hyundai Electric Co. Ltd.1.5%
Dixon Technologies India Ltd.1.4%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and
proxy
voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Emerging Markets
Small Cap Growth Fund
Class I / BESIX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT
| June 30, 2024
This semi-annual shareholder report contains important information about William Blair Emerging Markets Small Cap Growth Fund Class I (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000
investment
)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Emerging Markets Small Cap Growth Fund Class I$581.15%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 10.32% (net of fees) for the 6 months ended June 30, 2024. The Fund outperformed its benchmark, the MSCI Emerging Markets Small Cap Index (net), which returned 7.04% and outperformed the MSCI Emerging Markets IMI (
net
), a broad measure of market performance, which returned 7.41%.
Outperformance was driven by a combination of country allocation and stock selection effects. Stock selection was strong within the Industrials sector, particularly electrical equipment companies HD Hyundai Electric Co and ABB India. Within Materials, Jindal Stainless was a notable contributor to relative performance. The underweight to Health Care and Materials bolstered allocation effect. Partially offsetting these positive effects was negative stock selection within Information Technology, coupled with the Mexico overweighting and Taiwan underweighting. Within Technology, semiconductor holdings were notable detractors to relative sector performance.
TOP PERFORMANCE CONTRIBUTORS
HD Hyundai Electric Co Ltd
is a manufacturer of power transformers and equipment. The stock was added in the middle of the first quarter and accelerated on the back of the company’s strong results and growth outlook, driven by exports into the North American and Middle East markets.
ABB India
is a leader in automation and is benefitting from ongoing electrification and automation efforts in India with a broad set of opportunities. The stock outperformance was driven by robust results that exceeded consensus expectations in the first half of the year. The company delivered strong order growth and margin expansion, as it benefited from favorable mix and positive operating leverage.
Jindal Stainless
is India’s largest stainless-steel manufacturer with over 50% market share in the domestic market. The stock outperformance was underpinned by the company’s robust volume growth and outlook, which is aided by opportunities in the domestic market, especially railways and automotive, coupled with the export duty removal, driving volumes in the premium segment.
TOP PERFORMANCE DETRACTORS
HPSP
is a front-end, semiconductor equipment company serving high-end logic and foundry end-clients. Weaker-than-expected capital expenditures from key clients and disappointing trends regarding expansion into memory weighed on the stock during the period.
Global Unichip
is a back-end interface controller design services company. Following a strong share price rally in 2023, the stock weakened in the first quarter of 2024 as the company reported lower-than-expected fourth quarter 2023 results and 2024 guidance due to slower-than-expected ramp-up of new business and relatively high inventory level.
Totvs
is a leading enterprise resource planning provider in Brazil. While fundamentals showed continued growth in Totvs’s core business, margins declined on one-off expenses and an increase in customer acquisition spending leading to weaker share prices in the first quarter.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024
 
(or for the life of the Fund, if shorter). It assumes a $500,000 initial investment at the beginning of the period in a broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $500,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Emerging Markets Small Cap Growth Fund Class I
10.32%20.31%10.50%5.93%
MSCI Emerging Markets IMI (net)
7.41%13.56%3.93%3.09%
MSCI Emerging Markets Small Cap Index (net)
7.04%20.04%9.99%5.15%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$408,426
Number of portfolio holdings
130
Net advisory fees paid (in $000s)
$623
Portfolio turnover rate (six months)
83%
Graphical
Representation
of
Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Dixon Technologies India Ltd.2.7%
KEI Industries Ltd.2.7%
ABB India Ltd.2.2%
Wiwynn Corp.2.1%
ASPEED Technology, Inc.2.0%
Lotes Co. Ltd.1.9%
Asia Vital Components Co. Ltd.1.8%
Godrej Properties Ltd.1.7%
Huaming Power Equipment Co. Ltd. 1.6%
Macrotech Developers Ltd.1.6%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-
742
-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Emerging Markets
Small Cap Growth Fund
Class N / WESNX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Emerging Markets Small Cap Growth Fund Class N (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Emerging Markets Small Cap Growth Fund Class N$701.40%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 10.22% (net of fees) for the 6 months ended June 30, 2024. The Fund outperformed its benchmark, the MSCI Emerging Markets Small Cap Index (net), which returned 7.04% and outperformed the MSCI Emerging Markets IMI (
net
), a broad measure of market performance, which returned 7.41%.
Outperformance was driven by a combination of country allocation and stock selection effects. Stock selection was strong within the Industrials sector, particularly electrical equipment companies HD Hyundai Electric Co and ABB India. Within Materials, Jindal Stainless was a notable contributor to relative performance. The underweight to Health Care and Materials bolstered allocation effect. Pa
r
tially offsetting these positive effects was negative stock selection within Information Technology, coupled with the Mexico overweighting and Taiwan underweighting. Within Technology, semiconductor holdings were notable detractors to relative sector performance.
TOP PERFORMANCE CONTRIBUTORS
HD Hyundai Electric Co Ltd
is a manufacturer of power transformers and equipment. The stock was added in the middle of the first quarter and accelerated on the back of the company’s strong results and growth outlook, driven by exports into the North American and Middle East markets.
ABB India
is a leader in automation and is benefitting from ongoing electrification and automation efforts in India with a broad set of opportunities. The stock outperformance was driven by robust results that exceeded consensus expectations in the first half of th
e
year. The company delivered strong order growth and margin expansion, as it benefited from favorable mix and positive operating leverage.
Jindal Stainless
is India’s largest stainless-steel manufacturer with over 50% market share in the domestic market. The stock outperformance was underpinned by the company’s robust volume growth and outlook, which is aided by opportunities in the domestic market, especially railways and automotive, coupled with the export duty removal, driving volumes in the premium segment.
TOP PERFORMANCE DETRACTORS
HPSP
is a front-end, semiconductor equipment company serving high-end logic and foundry end-clients. Weaker-than-expected capital expenditures from key clients and disappointing trends regarding expansion into memory weighed on the stock during the period.
Global Unichip
is a back-end interface controller design services company. Following a strong share price rally in 2023, the stock weakened in the first quarter of 2024 as the company reported lower-than-expected fourth quarter 2023 results and 2024 guidance due to slower-than-expected ramp-up of new business and relatively high inventory level.
Totvs
is a leading enterprise resource planning provider in Brazil. While fundamentals showed continued growth in Totvs’s core business, margins declined on one-off expenses and an increase in customer acquisition spending leading to weaker share prices in the first quarter.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $10,000 initial investment at the beginning of the period in a
 
broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $10,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Emerging Markets Small Cap Growth Fund Class N
10.22%20.10%10.23%5.64%
MSCI Emerging Markets IMI (net)
7.41%13.56%3.93%3.09%
MSCI Emerging Markets Small Cap Index (net)
7.04%20.04%9.99%5.15%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$408,426
Number of portfolio holdings
130
Net advisory fees paid (in $000s)
$18
Portfolio turnover rate (six months)
83%
Graphical Representation of Holdings
The tables below show the investment m
ak
eup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Dixon Technologies India Ltd.2.7%
KEI Industries Ltd.2.7%
ABB India Ltd.2.2%
Wiwynn Corp.2.1%
ASPEED Technology, Inc.2.0%
Lotes Co. Ltd.1.9%
Asia Vital Components Co. Ltd.1.8%
Godrej Properties Ltd.1.7%
Huaming Power Equipment Co. Ltd. 1.6%
Macrotech Developers Ltd.1.6%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Inf
or
mation
You can find additional information about the Fund such as the prospectus, financial information
, h
oldings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Emerging Markets
Small Cap Growth Fund
Class R6 / WESJX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Emerging Markets Small Cap Growth Fund Class R6 (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Emerging Markets Small Cap Growth Fund Class R6$551.10%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 10.34% (net of fees) for the 6 months ended June 30, 2024. The Fund outperformed its benchmark, the MSCI Emerging Markets Small Cap Index (net), which returned 7.04% and outperformed the MSCI Emerging Markets IMI (
net
), a broad measure of market performance, which returned 7.41%.
Outperformance was driven by a combination of country allocation and stock selection effects. Stock selection was strong within the Industrials sector, particularly electrical equipment companies HD Hyundai Electric Co and ABB India. Within Materials, Jindal Stainless was a notable contributor to relative performance. The underweight to Health Care and Materials bolstered allocation effect. Partially offsetting these positive effects was negative stock selection within Information Technology, coupled with the Mexico overweighting and Taiwan underweighting. Within Technology, semiconductor holdings were notable detractors to relative sector performance.
TOP PERFORMANCE CONTRIBUTORS
HD Hyundai Electric Co Ltd
is a manufacturer of power transformers and equipment. The stock was added in the middle of the first quarter and accelerated on the back of the company’s strong results and growth outlook, driven by exports into the North American and Middle East markets.
ABB India
is a leader in automation and is benefitting from ongoing electrification and automation efforts in India with a broad set of opportunities. The stock outperformance was driven by robust results that exceeded consensus expectations in the first half of the year. The company delivered strong order growth and margin expansion, as it benefited from favorable mix and positive operating leverage.
Jindal Stainless
is India’s largest stainless-steel manufacturer with over 50% market share in the domestic market. The stock outperformance was underpinned by the company’s robust volume growth and outlook, which is aided by opportunities in the domestic market, especially railways and automotive, coupled with the export duty removal, driving volumes in the premium segment.
TOP PERFORMANCE DETRACTORS
HPSP
is a front-end, semiconductor equipment company serving high-end logic and foundry end-clients. Weaker-than-expected capital expenditures from key clients and disappointing trends regarding expansion into memory weighed on the stock during the period.
Global Unichip
is a back-end interface controller design services company. Following a strong share price rally in 2023, the stock weakened in the first quarter of 2024 as the company reported lower-than-expected fourth quarter 2023 results and 2024 guidance due to slower-than-expected ramp-up of new business and relatively high inventory level.
Totvs
is a leading enterprise resource planning provider in Brazil. While fundamentals showed continued growth in Totvs’s core business, margins declined on one-off expenses and an increase in customer acquisition spending leading to weaker share prices in the first quarter.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $1,000,000 initial investment at the beginning of the
 
period in a broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $1,000,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
5 Years
10 Years
Emerging Markets Small Cap Growth Fund Class R6
10.34%20.42%10.56%6.00%
MSCI Emerging Markets IMI (net)
7.41%13.56%3.93%3.09%
MSCI Emerging Markets Small Cap Index (net)
7.04%20.04%9.99%5.15%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund Statistics
Fund net assets (in $000s)
$408,426
Number of portfolio holdings
130
Net advisory fees paid (in $000s)
$1,106
Portfolio turnover rate (six months)
83%
Graphical Representation of Holdings
The tables below show the investment makeup of the
Fund
, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Dixon Technologies India Ltd.2.7%
KEI Industries Ltd.2.7%
ABB India Ltd.2.2%
Wiwynn Corp.2.1%
ASPEED Technology, Inc.2.0%
Lotes Co. Ltd.1.9%
Asia Vital Components Co. Ltd.1.8%
Godrej Properties Ltd.1.7%
Huaming Power Equipment Co. Ltd. 1.6%
Macrotech Developers Ltd.1.6%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional I
nform
ation
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request th
i
s information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair China Growth Fund
Class I / WICGX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair China Growth Fund Class I (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
China Growth Fund Class I
$
50
0.99%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 3.29% (net of fees) for the 6 months ended June
30
,
2024
. The Fund outperformed its benchmark, the MSCI China All Shares Index (net), which returned 2.28%. The Fund's benchmark is also a broad measure of market performance.
Outperformance was driven by a combination of allocation and stock selection effects. An overweight allocation to Industrials as well as the stock selection within Consumer Discretionary and Consumer Staples were the primary drivers of outperformance. Partly offsetting these effects was the portfolio’s sector positioning, led by an overweight in Consumer Staples and underweight in Energy and Financials. Stock selection within Financials also hampered returns.
TOP PERFORMANCE CONTRIBUTORS
Hisense Home Appliances
is the largest player in China’s central air market. The stock advanced
a
nd bolstered returns during the period after reporting solid quarter and full year 2023 results with broad-based share gains.
Giant Biogene
, within Consumer Staples, was a notable contributor to results. Giant is a leading professional skincare company in China that specializes in recombinant collagen-based skincare products. The stock advanced on strong revenue growth and operating profit.
TOP PERFORMANCE DETRACTOR
AIA Group
is a leading provider of insurance throughout Asia. The share price declined following mixed earnings results primarily due to challenging market conditions, including elevated medical claims, which led to policy price increases and lower investment returns on Chinese government bonds. The position was liquidated during the period.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $500,000 initial investment at the beginning of the period in a
 
broad-based securities market index which is also generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $500,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
Since Inception
China Growth Fund Class I
3.29%(7.98)%(21.35)%
MSCI China All Shares Index (net)
2.28%(4.39)%(13.18)%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund
Statistics
Fund net assets (in $000s)
$
1,815
Number of portfolio holdings
46
Net advisory fees paid (in $000s)
$
0
Portfolio tu
rnov
er rate (six months)
30%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund.
Top Ten Holdings
Tencent Holdings Ltd.11.3%
NetEase, Inc.6.3%
Kweichow Moutai Co. Ltd.5.1%
PDD Holdings, Inc.4.8%
Huaneng Lancang River Hydropower, Inc.4.5%
NAURA Technology Group Co. Ltd.4.1%
Weichai Power Co. Ltd.3.2%
Contemporary Amperex Technology Co. Ltd.2.9%
Zhongji Innolight Co. Ltd.2.6%
Yutong Bus Co. Ltd. 2.6%
Sector Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about t
he
Fund such
as
the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believ
e them
to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair China Growth Fund
Class R6 / WRCGX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair China Growth Fund Class R6 (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
China Growth Fund Class R6
$
47
0.94%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 3.30% (net of fees) for the 6 months ended June 30,
2024
. The Fund outperformed its benchmark, the MSCI China All Shares Index (net), which returned 2.28%. The Fund's benchmark is also a broad measure of market performance.
Outperformance was driven by a combination of allocation and stock selection effects. An overweight allocation to Industrials as well as the stock selection within Consumer Discretionary and Consumer Staples were the primary drivers of outperformance. Partly offsetting these effects was the portfolio’s sector positioning, led by an overweight in Consumer Staples and und
erw
eight in Energy and Financials. Stock selection within Financials also hampered returns.
TOP PERFORMANCE CONTRIBUTORS
Hisense Home Appliances
is the largest player in China’s central air market. The stock advanced and bolstered returns during the period after reporting solid quarter and full year 2023 results with broad
-ba
sed share gains.
Giant Biogene
, within Consumer Staples, was a notable contributor to results. Giant is a leading professional skincare company in China that specializes in recombinant collagen-based skincare products. The stock advanced on strong revenue growth and operating profit.
TOP PERFORMANCE DETRACTOR
AIA Group
is a leading provider of insurance throughout Asia. The share price declined following mixed earnings results primarily due to challenging market conditions, including elevated medical claims, which led to policy price increases and lower investment returns on Chinese government bonds. The position was liquidated during the period.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $1,000,000 initial investment at the beginning of the period in a broad-based securities market index which is also generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $1,000,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
Since Inception
China Growth Fund Class R6
3.30%(7.89)%(21.40)%
MSCI China All Shares Index (net)
2.28%(4.39)%(13.18)%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund
Statistics
Fund net assets (in $000s)
$1,815
Number of portfolio holdings
46
Net advisory fees paid (in $000s)
$0
Portfolio turnover rate (six months)
30%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, representing perce
ntag
e of the total net assets of the Fund.
Top Ten Holdings
Tencent Holdings Ltd.11.3%
NetEase, Inc.6.3%
Kweichow Moutai Co. Ltd.5.1%
PDD Holdings, Inc.4.8%
Huaneng Lancang River Hydropower, Inc.4.5%
NAURA Technology Group Co. Ltd.4.1%
Weichai Power Co. Ltd.3.2%
Contemporary Amperex Technology Co. Ltd.2.9%
Zhongji Innolight Co. Ltd.2.6%
Yutong Bus Co. Ltd. 2.6%
Sec
t
or Allocation
Graphical Representation - Allocation 1 Chart
Geographic Diversification
Graphical Representation - Allocation 2 Chart
Availability of Additional Info
r
mation
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Emerging Markets
Debt Fund
Class I / WEDIX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Emerging Markets Debt Fund Class I (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Emerging Markets Debt Fund Class I
$
37
0.74%
Management’s Discussion of Fund Performance
SUMMARY OF RESULTS
The Fund returned 4.02% (net of fees) for the 6 months ended June 30,
2024
. The Fund outperformed its benchmark, the JPMorgan Emerging Markets Bond Index (EMBI) Global Diversified (net) (the "Index"), which returned 2.34% and outperformed the Bloomberg Global Aggregate Index, a broad measure of market performance, which returned -3.16%.
Positive contributions came from all three “beta buckets” (or risk categories), particularly the high-beta (higher-risk) bucket. For this group, positive performance was mainly the result of country allocation effects.
Performance
in the medium-beta (me
dium
-risk) and low-beta (lower-risk) bucket was driven predominantly by positive security-selection effects.
Higher-Risk Countries
Within the higher-risk country segment, overweight positioning contributed the most to outperformance, especially in Egypt and Ecuador. Conversely, positions in Ethiopia and El Salvador detracted from relative performance.
In Egypt, bond prices performed well as the government announced a significant foreign direct investment deal and secured an augmented financial arrangement with the International Monetary Fund (“IMF”). The devaluation of the Egyptian pound and significant tightening of monetary conditions further buoyed investor confidence.
In Ecuador, bonds outperformed on an improving fundamental outlook for the country as well as an improvement in risk sentiment. Both country selection and security selection added to performance.
Our small overweight position in Ethiopia detracted marginally from performance as the authorities failed to progress in negotiations with the IMF on a funded arrangement. 
In El Salvador, bonds lagged following the reelection of President Nayib Bukele. The market was expecting him to quickly turn to the IMF after his grasp on power was reaffirmed, but there continues to be an ideological conflict about the role bitcoin should have in the Salvadoran economy. An extended timeline and questions about the feasibility of an IMF program led bonds to underperform the Index.
Lower-Risk Countries
Within the lower-risk country segment, positions in Saudi Arabia and Indonesia contributed to performance. Conversely, positions in India and Paraguay detracted from performance.
In Saudi Arabia, our underweight cash exposure position helped contribute to performance, which was aided by spread compression in our concentrated holdings in longer term bonds.
In Indonesia, our underweight position in Indonesian sovereign spread duration and overweight position in an Indonesian corporate from the oil and gas sector contributed to the relative performance, as Indonesian sovereign spreads were already tight, so the country failed to take part in the rally of broader EM assets during the half of the year.
In India, our off-benchmark position in short-dated corporate credit underperformed benchmark bonds as they failed to keep up with the very strong performance of the Index.
Lastly, in Paraguay, our overweight position underperformed the Index, as many high-beta countries outperformed.
Medium-Risk Countries
Within the medium-risk country segment, positions in Turkey and South Africa contributed to relative performance. Conversely, positions in Uzbekistan and Guatemala detracted from relative performance.
In Turkey, our position in a Turkish lira denominated supranational bond contributed to performance in the first half of 2024.
In South Africa our underweight position contributed positively to performance as investors have become more nervous about the outcome of the election in May.
Our overweight position in Uzbekistan detracted marginally to performance as a combination of a sovereign bond and a short-dated bank bond that we own failed to keep up with the very strong performance of the wider market.
In Guatemala, our overweight in intermediate-term bonds detracted slightly from performance. Although the political environment in Guatemala improved markedly in January when President Bernardo Arévalo assumed office, the country’s performance to the Index lagged those of other medium-beta countries.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024
 
(or for the life of the Fund, if shorter). It assumes a $500,000 initial investment at the beginning of the period in a broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $500,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
Since Inception
Emerging Markets Debt Fund Class I
4.02%12.20%(1.10)%
Bloomberg Global Aggregate Index
(3.16)%0.93%(5.58)%
JPMorgan Emerging Markets Bond Index (EMBI) Global Diversified (net)
2.34%9.23%(2.22)%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund
Statistics
Fund net assets (in $000s)
$
55,283
Number of portfolio holdings
245
Net advisory fees paid (in $000s)
$
3
Portfolio turnover rate (six months)
59%
Graphical Representa
t
ion of Holdings
The tables below show the investment makeup of the Fund, representing percentage of the total net assets of the Fund. Credit quality designations range from AAA (highest) to D (lowest). Credit quality ratings on underlying securitie
s are
received from S&P and Moody’s which are converted to the equivalent S&P major rating category for presentation purposes only.
Top Ten Holdings
Petroleos Mexicanos3.0%
Qatar Government International Bond2.5%
Romania Government International Bond2.3%
Panama Government International Bond2.3%
Argentine Government International Bond2.3%
Paraguay Government International Bond2.2%
South Africa Government International Bond2.2%
Oman Government International Bond2.2%
Turkiye Government International Bond2.1%
Dominican Republic
International Bond
2.0
%
Geographic Diversification
Graphical Representation - Allocation 1 Chart
Credit Quality
Graphical Representation - Allocation 2 Chart
Availability of Additional Information
You can find additional information about the
Fu
nd such as the prospectus, financi
a
l information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
William Blair Emerging Markets
Debt Fund
Class R6 / WEDRX
WB - TSR - Fund Logo
SEMI-ANNUAL SHAREHOLDER REPORT | June 30, 2024
This semi-annual shareholder report contains important information about William Blair Emerging Markets Debt Fund Class R6 (the "Fund”) for the period of January 1, 2024, to June 30, 2024. You can find additional information about the Fund at
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund
Cost of $10,000 Investment
Cost of $10,000 Investment as a percentage
Emerging Markets Debt Fund Class R6
$
35
0.69%
Management’s Discussion of
Fund Performance
SUMMARY OF RESULTS
The Fund returned 4.05% (net of fees) for the 6 months ended June 30, 2024. The Fund outperformed its
benchmark
, the JPMorgan Emerging Markets Bond Index (EMBI) Global Diversified (net) (the "Index"), which returned 2.34% and outperformed the Bloomberg Global Aggregate Index, a broad measure of market performance, which returned -3.16%.
Positive contributions came from all three “beta buckets” (or risk categories), particularly the high-beta (higher-risk) bucket. For this group, positive performance was mainly the result of country allocation effects. Performance in the medium-beta (medium-risk) and low-beta (lower-risk) bucket was driven predominantly by positive security-selection effects.
Higher-Risk Countries
Within the higher-risk country segment, overweight positioning contributed the most to outperformance, especially in Egypt and Ecuador. Conversely, positions in Ethiopia and El Salvador detracted from relative performance.
In Egypt, bond prices performed well as the government announced a significant foreign direct investment deal and secured an augmented financial arrangement with the International Monetary Fund (“IMF”). The devaluation of the Egyptian pound and significant tightening of monetary conditions further buoyed investor confidence.
In Ecuador, bonds outperformed on an improving fundamental outlook for the country as well as an improvement in risk sentiment. Both country selection and security selection added to performance.
Our small overweight position in Ethiopia detracted marginally from performance as the authorities failed to progress in negotiations with the IMF on a funded arrangement. 
In El Salvador, bonds lagged following the reelection of President Nayib Bukele. The market was expecting him to quickly turn to the IMF after his grasp on power was reaffirmed, but there continues to be an ideological conflict about the role bitcoin should have in the Salvadoran economy. An extended timeline and questions about the feasibility of an IMF program led bonds to underperform the Index.
Lower-Risk Countries
Within the lower-risk country segment, positions in Saudi Arabia and Indonesia contributed to performance. Conversely, positions in India and Paraguay detracted from performance.
In Saudi Arabia, our underweight cash exposure position helped contribute to performance, which was aided by spread compression in our concentrated holdings in longer term bonds.
In Indonesia, our underweight position in Indonesian sovereign spread duration and overweight position in an Indonesian corporate from the oil and gas sector contributed to the relative performance, as Indonesian sovereign spreads were already tight, so the country failed to take part in the rally of broader EM assets during the half of the year.
In India, our off-benchmark position in short-dated corporate credit underperformed benchmark bonds as they failed to keep up with the very strong performance of the Index.
Lastly, in Paraguay, our overweight position underperformed the Index, as many high-beta countries outperformed.
Medium-Risk Countries
Within the medium-risk country segment, positions in Turkey and South Africa contributed to relative performance. Conversely, positions in Uzbekistan and Guatemala detracted from relative performance.
In Turkey, our position in a Turkish lira denominated supranational bond contributed to performance in the first half of 2024.
In South Africa our underweight position contributed positively to performance as investors have become more nervous about the outcome of the election in May.
Our overweight position in Uzbekistan detracted marginally to performance as a combination of a sovereign bond and a short-dated bank bond that we own failed to keep up with the very strong performance of the wider market.
In Guatemala, our overweight in intermediate-term bonds detracted slightly from performance. Although the political environment in Guatemala improved markedly in January when President Bernardo Arévalo assumed office, the co
un
try’s performance to the Index lagged those of other medium-beta countries.
Fund Performance
The following graph compares the initial and subsequent account values for the 10-year period ended June 30, 2024 (or for the life of the Fund, if shorter). It assumes a $1,000,000 initial investment at the beginning of the
 
period in a broad-based securities market index and an additional index for the same period. The additional index is generally representative of the market sectors or types of investments in which the Fund invests.
GROWTH OF $1,000,000
Fund Performance - Growth of 10K
Average Annual Total Returns
6 Months
1 Year
Since Inception
Emerging Markets Debt Fund Class R6
4.05%12.28%(1.05)%
Bloomberg Global Aggregate Index
(3.16)%0.93%(5.58)%
JPMorgan Emerging Markets Bond Index (EMBI) Global Diversified (net)
2.34%9.23%(2.22)%
Keep in mind that the Fund’s past performance is not a good predictor of how the Fund will perform in the future.
The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.
Visit 
www.williamblairfunds.com/funds/total-returns/
 for the most recent performance information.
 
Key Fund
Statistics
Fund net assets (in $000s)
$55,283
Number of portfolio holdings
245
Net advisory fees paid (in $000s)
$66
Portfolio turnover rate (six months)
59%
Graphical Representation of Holdings
The tables below show the investment makeup of the Fund, repres
en
ting percentage of the total net assets of the
Fund
. Credit quality designations range from AAA (highest) to D (lowest). Credit quality ratings on underlying securities are received from S&P and Moody’s which are converted to the equivalent S&P major rating category for presentation purposes
on
ly.
Top Ten Holdings
Petroleos Mexicanos3.0%
Qatar Government International Bond2.5%
Romania Government International Bond2.3%
Panama Government International Bond2.3%
Argentine Government International Bond2.3%
Paraguay Government International Bond2.2%
South Africa Government International Bond2.2%
Oman Government International Bond2.2%
Turkiye Government International Bond2.1%
Dominican Republic
International Bond
2.0
%
Geographic Diversification
Graphical Representation - Allocation 1 Chart
Credit Quality
Graphical Representation - Allocation 2 Chart
Availab
ili
ty of Additional Informat
io
n
You can find additional information about the Fund such as the prospectus, financial information, holdings and proxy voting information at 
www.williamblairfunds.com
. You can also request this information by contacting us at 1-800-742-7272.
Householding
In order to reduce expenses, we will deliver a single copy of prospectuses, proxies, financial reports and other communication to shareholders with the same residential address, provided they have the same last name or we reasonably believe them to be members of the same family. Unless we are notified otherwise, we will continue to send recipients only one copy of these materials for as long as they remain a shareholder of the Fund. If you would like to receive individual mailings, please call 1-800-742-7272 and we will begin sending you separate copies of these materials within 30 days after receiving your request.
WB - TSR - QR Code
For additional information, please scan the QR code at left to navigate to additional hosted material at
www.williamblairfunds.com
.
 

Item 2.    Code of Ethics

Not applicable to this filing.



Item 3.    Audit Committee Financial Expert

Not applicable to this filing.



Item 4.    Principal Accountant Fees and Services

Not applicable to this filing.



Item 5.    Audit Committee of Listed Registrants

Not applicable to this Registrant, insofar as the Registrant is not a listed company.



Item 6.    Schedule of Investments

(a) Not applicable. The complete Schedule of Investments is included in Item 7 of this Form N-CSR.

(b) Not applicable. 



Item 7.    Financial Statements and Financial Highlights for Open-End Management Investment Companies.



June 30, 2024
 
William Blair Funds
Semi-Annual Financial Statements and Other Information


Table of Contents

 
2
3
4
5
7
9
11
13
15
17
19
24
29
32
34
38
41
45
47
This report is submitted for the general information of the shareholders of William Blair Funds. It is not authorized for distribution to prospective Fund investors unless accompanied or preceded by the Fund’s prospectus. Please carefully consider a Fund’s investment objectives, risks, charges, and expenses before investing. This and other information is contained in the Fund’s prospectus, which you may obtain by calling 1-800-742-7272. Read it carefully before you invest or send money.
June 30, 2024
1
William Blair Funds

Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)

 
 




Issuer
Shares




Value
 
Common Stocks
 
Information Technology—41.8%
*
Advanced Micro Devices, Inc.
 
65,670
$10,652
 
Apple, Inc.
 
42,890
9,034
*
Clearwater Analytics Holdings, Inc.
 
145,056
2,686
*
Confluent, Inc.
 
70,710
2,088
*
Dynatrace, Inc.
 
85,262
3,815
 
Microsoft Corp.
 
51,250
22,906
*
MongoDB, Inc.
 
14,656
3,663
*
Nice Ltd.—ADR
 
19,313
3,321
 
NVIDIA Corp.
 
102,266
12,634
*
Palo Alto Networks, Inc.
 
25,037
8,488
*
Pure Storage, Inc.
 
76,130
4,888
*
ServiceNow, Inc.
 
10,567
8,313
 
Texas Instruments, Inc.
 
34,036
6,621
*
Tyler Technologies, Inc.
 
8,106
4,076
*
Workday, Inc.
 
15,794
3,531
*
Workiva, Inc.
 
33,110
2,417
 
 
 
109,133
 
Health Care—11.5%
 
Abbott Laboratories
 
46,688
4,851
 
Agilent Technologies, Inc.
 
24,910
3,229
*
Doximity, Inc.
 
65,674
1,837
*
Intuitive Surgical, Inc.
 
9,362
4,165
*
Treace Medical Concepts, Inc.
 
149,600
995
 
UnitedHealth Group, Inc.
 
16,850
8,581
*
Veeva Systems, Inc.
 
12,525
2,292
 
Zoetis, Inc.
 
23,340
4,046
 
 
 
29,996
 
Consumer Discretionary—11.1%
*
Amazon.com, Inc.
 
108,391
20,947
*
Bright Horizons Family Solutions, Inc.
 
20,179
2,221
*
Five Below, Inc.
 
15,602
1,700
 
NIKE, Inc.
 
27,426
2,067
*
Skyline Champion Corp.
 
29,331
1,987
 
 
 
28,922
 
Industrials—9.5%
*
ACV Auctions, Inc.
 
265,491
4,845
 
Brink's Co.
 
34,733
3,557
*
Chart Industries, Inc.
 
16,772
2,421
*
Copart, Inc.
 
99,582
5,393
*
Kornit Digital Ltd.
 
70,741
1,036
*
Uber Technologies, Inc.
 
69,835
5,075
*
Verra Mobility Corp.
 
95,996
2,611
 
 
 
24,938
 
Issuer
Shares or
Principal
Amount
Value
 
Common Stocks—(continued)
 
Financials—8.4%
*
Baldwin Insurance Group, Inc.
 
91,182
$3,234
 
Carlyle Group, Inc.
 
88,479
3,553
 
Everest Group Ltd.
 
8,451
3,220
*
Flywire Corp.
 
122,451
2,007
 
Mastercard, Inc.
 
22,237
9,810
 
 
 
21,824
 
Communication Services—8.3%
 
Alphabet, Inc.—Class A
 
111,709
20,348
*
ZipRecruiter, Inc.
 
151,470
1,377
 
 
 
21,725
 
Consumer Staples—5.2%
 
Lancaster Colony Corp.
 
12,204
2,306
*
Performance Food Group Co.
 
44,050
2,912
*
Vital Farms, Inc.
 
83,588
3,910
 
Walmart, Inc.
 
67,476
4,569
 
 
 
13,697
 
Energy—3.1%
 
Cameco Corp.
 
98,886
4,865
*
Green Plains, Inc.
 
76,272
1,210
 
New Fortress Energy, Inc.
 
93,186
2,048
 
 
 
8,123
 
Total Common Stocks98.9%
(cost $151,523)
 
258,358
 
 




 

 




 
 
Repurchase Agreements
 
Fixed Income Clearing Corporation, 2.300%
dated 06/28/24, due 07/01/24, repurchase
price $2,414, collateralized by
U.S. Treasury Inflation-Indexed Note,
0.125%, due 04/15/27, valued at $2,462
$
2,413
2,413
 
Total Repurchase Agreements0.9%
(cost $2,413)
 
2,413
 
Total Investments99.8%
(cost $153,936)
 
260,771
 
Cash and other assets,
less liabilities—0.2%
 
582
 
Net Assets—100.0%
 
$261,353

 
ADR
American Depositary Deposit
 
*
Non-income producing security.
U.S. listed foreign security
As of June 30, 2024, the value of investments in securities and other financial instruments, segregated by their hierarchical input levels used in determining fair value and by security class or other financial instruments, are shown below (in thousands). 
Investments in securities
Level 1
Level 2
Level 3
Total
Common Stocks
$258,358
$
$
$258,358
Repurchase Agreements
2,413
2,413
Total Investments in Securities
$258,358
$2,413
$
$260,771
See accompanying Notes to Financial Statements.
June 30, 2024
2
Semi-Annual

Large Cap Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)

 
 




Issuer
Shares




Value
 
Common Stocks
 
Information Technology—48.5%
 
Accenture PLC
 
113,900
$34,558
*
Advanced Micro Devices, Inc.
 
281,098
45,597
 
Apple, Inc.
 
719,210
151,480
 
Intuit, Inc.
 
95,170
62,547
 
Lam Research Corp.
 
54,320
57,843
 
Microsoft Corp.
 
747,120
333,925
 
NVIDIA Corp.
 
2,085,740
257,672
*
Palo Alto Networks, Inc.
 
164,450
55,750
 
Salesforce, Inc.
 
206,580
53,112
*
ServiceNow, Inc.
 
76,810
60,424
 
Texas Instruments, Inc.
 
270,220
52,566
 
 
 
1,165,474
 
Consumer Discretionary—12.6%
*
Amazon.com, Inc.
 
1,084,740
209,626
*
Chipotle Mexican Grill, Inc.
 
848,000
53,127
*
O'Reilly Automotive, Inc.
 
37,810
39,930
 
 
 
302,683
 
Communication Services—11.0%
 
Alphabet, Inc.—Class A
 
1,279,880
233,130
*
Live Nation Entertainment, Inc.
 
327,982
30,745
 
 
 
263,875
 
Health Care—7.5%
 
Agilent Technologies, Inc.
 
178,870
23,187
*
Intuitive Surgical, Inc.
 
101,360
45,090
 
UnitedHealth Group, Inc.
 
113,355
57,727
*
Veeva Systems, Inc.
 
101,120
18,506
 
Zoetis, Inc.
 
215,910
37,430
 
 
 
181,940
 
Financials—7.3%
 
Apollo Global Management, Inc.
 
344,641
40,692
 
Carlyle Group, Inc.
 
858,730
34,478
 
Mastercard, Inc.
 
226,250
99,812
 
 
 
174,982
 
Issuer
Shares or
Principal
Amount
Value
 
Common Stocks—(continued)
 
Consumer Staples—4.1%
 
Costco Wholesale Corp.
 
67,040
$56,983
*
Monster Beverage Corp.
 
819,740
40,946
 
 
 
97,929
 
Materials—3.3%
 
Linde PLC
 
98,860
43,381
 
Martin Marietta Materials, Inc.
 
69,040
37,406
 
 
 
80,787
 
Industrials—3.3%
*
Copart, Inc.
 
687,180
37,218
*
Uber Technologies, Inc.
 
577,080
41,942
 
 
 
79,160
 
Real Estate—0.6%
*
CoStar Group, Inc.
 
189,707
14,065
 
Total Common Stocks98.2%
(cost $1,560,542)
 
2,360,895
 
 




 

 




 
 
Repurchase Agreements
 
Fixed Income Clearing Corporation,
2.300% dated 06/28/24, due 07/01/24,
repurchase price $43,663, collateralized
by U.S. Treasury Note, 2.250%, due
08/15/27, valued at $44,528
$
43,655
43,655
 
Total Repurchase Agreements1.8%
(cost $43,655)
 
43,655
 
Total Investments100.0%
(cost $1,604,197)
 
2,404,550
 
Liabilities, plus cash and
other assets—(0.0)%
 
(262
)
 
Net Assets—100.0%
 
$2,404,288

 
PLC
Public Limited Company
 
U.S. listed foreign security
*
Non-income producing security.
As of June 30, 2024, the value of investments in securities and other financial instruments, segregated by their hierarchical input levels used in determining fair value and by security class or other financial instruments, are shown below (in thousands). 
Investments in securities
Level 1
Level 2
Level 3
Total
Common Stocks
$2,360,895
$
$
$2,360,895
Repurchase Agreements
43,655
43,655
Total Investments in Securities
$2,360,895
$43,655
$
$2,404,550
See accompanying Notes to Financial Statements.
June 30, 2024
3
William Blair Funds

Mid Cap Value Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
 




Issuer
Shares




Value
 
Common Stocks
 
Industrials—16.5%
 
AGCO Corp.
 
238
$23
*
Alaska Air Group, Inc.
 
724
29
 
Allegion PLC
 
205
24
 
Flowserve Corp.
 
585
28
 
JB Hunt Transport Services, Inc.
 
178
29
 
Johnson Controls International PLC
 
395
26
 
Knight-Swift Transportation Holdings, Inc.
 
505
25
*
Middleby Corp.
 
193
24
 
Snap-on, Inc.
 
100
26
 
Timken Co.
 
408
33
 
 
 
267
 
Information Technology—13.4%
 
Amdocs Ltd.
 
360
29
*
Check Point Software Technologies Ltd.
 
123
20
 
Cognizant Technology Solutions Corp.
 
401
27
*
Flex Ltd.
 
837
25
 
Hewlett Packard Enterprise Co.
 
1,356
29
 
Jabil, Inc.
 
241
26
*
ON Semiconductor Corp.
 
392
27
*
Qorvo, Inc.
 
295
34
 
 
 
217
 
Financials—12.5%
*
Arch Capital Group Ltd.
 
289
29
 
East West Bancorp, Inc.
 
381
28
 
Global Payments, Inc.
 
286
27
 
Hartford Financial Services Group, Inc.
 
288
29
 
Huntington Bancshares, Inc.
 
1,720
23
 
KKR & Co., Inc.
 
299
31
 
Willis Towers Watson PLC
 
129
34
 
 
 
201
 
Health Care—11.1%
 
Cencora, Inc.
 
103
23
*
Centene Corp.
 
414
28
 
Encompass Health Corp.
 
296
25
*
Envista Holdings Corp.
 
882
15
*
Hologic, Inc.
 
160
12
 
Labcorp Holdings, Inc.
 
142
29
 
Teleflex, Inc.
 
143
30
 
Viatris, Inc.
 
1,631
17
 
 
 
179
 
Materials—7.9%
*
Axalta Coating Systems Ltd.
 
905
31
 
CRH PLC
 
369
28
 
Crown Holdings, Inc.
 
369
27
 
PPG Industries, Inc.
 
198
25
 
Royal Gold, Inc.
 
131
16
 
 
 
127
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Consumer Staples—7.3%
 
Ingredion, Inc.
 
292
$34
 
Molson Coors Beverage Co.
 
552
28
 
Tyson Foods, Inc.
 
443
25
*
U.S. Foods Holding Corp.
 
589
31
 
 
 
118
 
Energy—6.8%
 
Coterra Energy, Inc.
 
851
23
 
Diamondback Energy, Inc.
 
151
30
 
Permian Resources Corp.
 
1,824
29
 
Phillips 66
 
195
28
 
 
 
110
 
Consumer Discretionary—6.8%
 
Advance Auto Parts, Inc.
 
237
15
 
Brunswick Corp.
 
287
21
 
LKQ Corp.
 
673
28
 
Toll Brothers, Inc.
 
230
26
 
Whirlpool Corp.
 
181
19
 
 
 
109
 
Real Estate—6.6%
 
Camden Property Trust
 
203
22
 
Host Hotels & Resorts, Inc.
 
1,626
29
 
Regency Centers Corp.
 
457
29
 
VICI Properties, Inc.
 
943
27
 
 
 
107
 
Utilities—5.5%
 
Entergy Corp.
 
276
30
 
NiSource, Inc.
 
1,071
31
 
PPL Corp.
 
1,028
28
 
 
 
89
 
Communication Services—0.6%
*
Warner Bros Discovery, Inc.
 
1,306
10
 
Total Common Stocks95.0%
(cost $1,484)
 
1,534
 
Total Investments95.0%
(cost $1,484)
 
1,534
 
Cash and other assets,
less liabilities—5.0%
 
80
 
Net Assets—100.0%
 
$1,614

 
PLC
Public Limited Company
 
*
Non-income producing security.
U.S. listed foreign security
As of June 30, 2024, the value of investments in securities and other financial instruments, segregated by their hierarchical input levels used in determining fair value and by security class or other financial instruments, are shown below (in thousands). 
Investments in securities
Level 1
Level 2
Level 3
Total
Common Stocks
$1,534
$
$
$1,534
See accompanying Notes to Financial Statements.
June 30, 2024
4
Semi-Annual

Small-Mid Cap Core Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)

 
 




Issuer
Shares




Value
 
Common Stocks
 
Industrials—22.1%
*
ACV Auctions, Inc.
 
178,823
$3,264
 
Atkore, Inc.
 
10,355
1,397
*
Axon Enterprise, Inc.
 
6,700
1,971
 
Brink's Co.
 
24,436
2,502
*
Builders FirstSource, Inc.
 
14,902
2,063
 
BWX Technologies, Inc.
 
49,465
4,699
*
Casella Waste Systems, Inc.
 
37,094
3,680
*
Chart Industries, Inc.
 
16,185
2,336
*
Core & Main, Inc.
 
39,208
1,919
*
ExlService Holdings, Inc.
 
68,959
2,163
*
GXO Logistics, Inc.
 
35,220
1,779
*
Mercury Systems, Inc.
 
91,377
2,466
 
Owens Corning
 
13,742
2,387
 
Tecnoglass, Inc.
 
33,461
1,679
 
TransUnion
 
28,716
2,130
*
Trex Co., Inc.
 
22,332
1,655
*
Verra Mobility Corp.
 
110,603
3,008
*
WillScot Mobile Mini Holdings Corp.
 
68,139
2,565
 
 
 
43,663
 
Health Care—13.5%
*
Acadia Healthcare Co., Inc.
 
45,219
3,054
*
Avantor, Inc.
 
79,596
1,687
 
Chemed Corp.
 
5,902
3,202
*
Doximity, Inc.
 
69,092
1,933
 
Encompass Health Corp.
 
37,002
3,174
*
Exact Sciences Corp.
 
51,034
2,156
*
Globus Medical, Inc.
 
25,751
1,764
*
Insulet Corp.
 
8,735
1,763
*
Merit Medical Systems, Inc.
 
35,051
3,013
*
Neogen Corp.
 
158,949
2,484
*
Penumbra, Inc.
 
7,736
1,392
*
Sotera Health Co.
 
84,894
1,008
 
 
 
26,630
 
Financials—13.4%
*
Baldwin Insurance Group, Inc.
 
126,887
4,501
 
Carlyle Group, Inc.
 
94,436
3,792
 
East West Bancorp, Inc.
 
44,714
3,274
 
Everest Group Ltd.
 
10,663
4,063
*
Flywire Corp.
 
92,102
1,510
*
Marex Group PLC
 
108,175
2,163
 
Virtu Financial, Inc.
 
144,190
3,237
 
Western Alliance Bancorp
 
62,943
3,954
 
 
 
26,494
 
Consumer Discretionary—12.2%
 
ADT, Inc.
 
232,397
1,766
*
Bright Horizons Family Solutions, Inc.
 
34,560
3,804
*
Fox Factory Holding Corp.
 
12,067
582
*
Garrett Motion, Inc.
 
398,295
3,421
*
National Vision Holdings, Inc.
 
82,883
1,085
*
On Holding AG
 
48,780
1,893
 
Pool Corp.
 
6,920
2,127
*
Revolve Group, Inc.
 
40,429
643
 
SharkNinja, Inc.
 
38,191
2,870
 
Signet Jewelers Ltd.
 
17,468
1,565
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Consumer Discretionary—(continued)
*
Skyline Champion Corp.
 
37,773
$2,559
*
Stride, Inc.
 
25,895
1,826
 
 
 
24,141
 
Information Technology—12.1%
*
Agilysys, Inc.
 
11,859
1,235
*
Alarm.com Holdings, Inc.
 
21,077
1,339
*
Ambarella, Inc.
 
25,276
1,364
*
Clearwater Analytics Holdings, Inc.
 
91,631
1,697
 
Cognex Corp.
 
42,210
1,974
*
Confluent, Inc.
 
83,961
2,479
*
Descartes Systems Group, Inc.
 
15,966
1,546
*
Diebold Nixdorf, Inc.
 
25,564
984
*
Dynatrace, Inc.
 
48,339
2,163
 
Entegris, Inc.
 
11,119
1,506
*
Gitlab, Inc.
 
24,746
1,230
*
Lattice Semiconductor Corp.
 
19,587
1,136
*
Nice Ltd.—ADR
 
12,927
2,223
*
Pure Storage, Inc.
 
22,262
1,429
*
Tyler Technologies, Inc.
 
3,274
1,646
 
 
 
23,951
 
Energy—6.5%
*
Antero Resources Corp.
 
53,890
1,758
 
Cameco Corp.
 
48,691
2,396
*
Green Plains, Inc.
 
50,464
800
 
New Fortress Energy, Inc.
 
88,990
1,956
 
TechnipFMC PLC
 
75,308
1,969
*
Weatherford International PLC
 
12,851
1,574
 
Whitecap Resources, Inc.
 
311,433
2,277
 
 
 
12,730
 
Materials—6.2%
 
Berry Global Group, Inc.
 
47,647
2,804
 
CF Industries Holdings, Inc.
 
25,571
1,895
 
Crown Holdings, Inc.
 
27,878
2,074
 
Eagle Materials, Inc.
 
12,392
2,695
 
Louisiana-Pacific Corp.
 
16,865
1,388
 
Sylvamo Corp.
 
21,148
1,451
 
 
 
12,307
 
Real Estate—5.1%
 
Agree Realty Corp.
 
35,048
2,171
 
Americold Realty Trust, Inc.
 
104,662
2,673
 
Equity LifeStyle Properties, Inc.
 
43,614
2,840
 
Healthcare Realty Trust, Inc.
 
145,731
2,402
 
 
 
10,086
 
Consumer Staples—4.3%
*
e.l.f. Beauty, Inc.
 
5,445
1,147
 
Inter Parfums, Inc.
 
17,599
2,042
 
Lancaster Colony Corp.
 
14,323
2,707
 
Primo Water Corp.
 
113,157
2,474
 
 
 
8,370
 
Utilities—1.4%
 
IDACORP, Inc.
 
29,081
2,709
See accompanying Notes to Financial Statements.
June 30, 2024
5
William Blair Funds

Small-Mid Cap Core Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares or
Principal
Amount
Value
 
Common Stocks—(continued)
 
Communication Services—0.7%
*
ZipRecruiter, Inc.
 
157,461
$1,431
 
Total Common Stocks97.5%
(cost $180,111)
 
192,512
 
 




 

 




 
 
Repurchase Agreements
 
Fixed Income Clearing Corporation, 2.300%
dated 06/28/24, due 07/01/24, repurchase
price $5,469, collateralized by
U.S. Treasury Inflation-Indexed Note,
0.125%, due 04/15/27, valued at $5,577
$
5,468
5,468
 
Total Repurchase Agreements2.8%
(cost $5,468)
 
5,468
 
Total Investments100.3%
(cost $185,579)
 
197,980
 
Liabilities, plus cash and
other assets—(0.3)%
 
(496
)
 
Net Assets—100.0%
 
$197,484

 
ADR
American Depositary Deposit
PLC
Public Limited Company
 
*
Non-income producing security.
U.S. listed foreign security
As of June 30, 2024, the value of investments in securities and other financial instruments, segregated by their hierarchical input levels used in determining fair value and by security class or other financial instruments, are shown below (in thousands). 
Investments in securities
Level 1
Level 2
Level 3
Total
Common Stocks
$192,512
$
$
$192,512
Repurchase Agreements
5,468
5,468
Total Investments in Securities
$192,512
$5,468
$
$197,980
See accompanying Notes to Financial Statements.
June 30, 2024
6
Semi-Annual

Small-Mid Cap Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)

 
 




Issuer
Shares




Value
 
Common Stocks
 
Health Care—23.6%
*
Acadia Healthcare Co., Inc.
 
430,180
$29,054
*
Amicus Therapeutics, Inc.
 
1,830,900
18,163
 
Bio-Techne Corp.
 
204,400
14,645
*
Blueprint Medicines Corp.
 
234,104
25,232
*
Certara, Inc.
 
664,383
9,202
 
Chemed Corp.
 
72,266
39,210
*
Doximity, Inc.
 
802,552
22,447
 
Encompass Health Corp.
 
519,117
44,535
*
Evolent Health, Inc.
 
918,000
17,552
*
Exact Sciences Corp.
 
580,100
24,509
*
Globus Medical, Inc.
 
216,695
14,841
*
Insmed, Inc.
 
497,151
33,309
*
Inspire Medical Systems, Inc.
 
111,742
14,954
*
Insulet Corp.
 
150,265
30,324
*
Merit Medical Systems, Inc.
 
385,226
33,110
*
Neogen Corp.
 
1,502,400
23,483
*
Penumbra, Inc.
 
131,486
23,664
*
Twist Bioscience Corp.
 
446,473
22,002
 
 
 
440,236
 
Industrials—18.7%
 
Advanced Drainage Systems, Inc.
 
237,400
38,077
*
Axon Enterprise, Inc.
 
114,758
33,766
 
Brink's Co.
 
332,138
34,011
*
Builders FirstSource, Inc.
 
155,156
21,475
 
BWX Technologies, Inc.
 
517,252
49,139
*
Casella Waste Systems, Inc.
 
286,561
28,433
*
Chart Industries, Inc.
 
124,855
18,021
*
ExlService Holdings, Inc.
 
757,716
23,762
*
Generac Holdings, Inc.
 
136,000
17,982
*
Mercury Systems, Inc.
 
789,392
21,306
 
Regal Rexnord Corp.
 
105,100
14,212
*
Trex Co., Inc.
 
298,621
22,134
*
WillScot Mobile Mini Holdings Corp.
 
682,000
25,670
 
 
 
347,988
 
Information Technology—18.6%
*
Alarm.com Holdings, Inc.
 
195,841
12,444
*
Altair Engineering, Inc.
 
170,332
16,706
*
Clearwater Analytics Holdings, Inc.
 
1,402,769
25,979
 
Cognex Corp.
 
529,147
24,743
*
Confluent, Inc.
 
957,415
28,273
*
Dynatrace, Inc.
 
653,786
29,250
 
Entegris, Inc.
 
105,376
14,268
*
Guidewire Software, Inc.
 
173,055
23,863
*
Lattice Semiconductor Corp.
 
528,800
30,665
*
Nice Ltd.—ADR
 
171,268
29,453
*
Novanta, Inc.
 
136,854
22,322
*
Procore Technologies, Inc.
 
199,900
13,255
*
Tenable Holdings, Inc.
 
588,388
25,642
*
Tyler Technologies, Inc.
 
71,900
36,150
*
Varonis Systems, Inc.
 
293,432
14,076
 
 
 
347,089
 
Consumer Discretionary—11.8%
*
Bright Horizons Family Solutions, Inc.
 
246,978
27,187
*
Burlington Stores, Inc.
 
82,661
19,839
 
Churchill Downs, Inc.
 
167,400
23,369
 
Issuer
Shares or
Principal
Amount
Value
 
Common Stocks—(continued)
 
Consumer Discretionary—(continued)
*
Fox Factory Holding Corp.
 
72,649
$3,501
*
National Vision Holdings, Inc.
 
963,181
12,608
*
On Holding AG
 
467,400
18,135
*
Planet Fitness, Inc.
 
344,500
25,352
 
Pool Corp.
 
87,900
27,014
*
Revolve Group, Inc.
 
750,392
11,939
 
SharkNinja, Inc.
 
370,300
27,828
*
Stride, Inc.
 
323,800
22,828
 
 
 
219,600
 
Financials—7.3%
 
Carlyle Group, Inc.
 
980,300
39,359
*
Euronet Worldwide, Inc.
 
90,480
9,365
 
Everest Group Ltd.
 
75,732
28,855
*
Flywire Corp.
 
1,570,103
25,734
 
Virtu Financial, Inc.
 
675,787
15,172
 
Western Alliance Bancorp
 
269,516
16,931
 
 
 
135,416
 
Consumer Staples—6.2%
*
e.l.f. Beauty, Inc.
 
224,500
47,307
*
Freshpet, Inc.
 
315,879
40,871
 
Lancaster Colony Corp.
 
146,430
27,671
 
 
 
115,849
 
Energy—6.1%
 
Cameco Corp.
 
426,062
20,962
*
Kosmos Energy Ltd.
 
2,478,985
13,734
 
New Fortress Energy, Inc.
 
1,205,612
26,499
 
Noble Corp. PLC
 
331,500
14,801
 
Range Resources Corp.
 
430,600
14,438
 
Whitecap Resources, Inc.
 
3,305,700
24,165
 
 
 
114,599
 
Materials—4.2%
 
CF Industries Holdings, Inc.
 
309,831
22,964
 
Crown Holdings, Inc.
 
313,587
23,328
 
Eagle Materials, Inc.
 
87,000
18,919
 
Louisiana-Pacific Corp.
 
160,500
13,214
 
 
 
78,425
 
Real Estate—1.0%
 
FirstService Corp.
 
118,768
18,097
 
Total Common Stocks97.5%
(cost $1,583,732)
 
1,817,299
 
 




 

 




 
 
Rights
 
Health Care—0.0%
*
Abiomed, Inc. —CVR**
$
80,133
0
 
Total Rights0.0%
(cost $82)
 
See accompanying Notes to Financial Statements.
June 30, 2024
7
William Blair Funds

Small-Mid Cap Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Principal
Amount
Value
 
Repurchase Agreements
 
Fixed Income Clearing Corporation,
2.300% dated 06/28/24, due 07/01/24,
repurchase price $28,960,
collateralized by U.S. Treasury Note,
2.25%, due 08/15/27, valued at
$29,533
$
28,954
$28,954
 
Total Repurchase Agreements1.5%
(cost $28,954)
 
28,954
 
Total Investments99.0%
(cost $1,612,768)
 
1,846,253
 
Cash and other assets,
less liabilities—1.0%
 
17,881
 
Net Assets—100.0%
 
$1,864,134

 
ADR
American Depositary Deposit
CVR
Contingent Value Right
PLC
Public Limited Company
 
*
Non-income producing security.
U.S. listed foreign security
**
Fair valued pursuant to the Fund's Valuation Procedures. This
holding represents 0.00% of the Fund’s net assets at June 30, 2024.
As of June 30, 2024, the value of investments in securities and other financial instruments, segregated by their hierarchical input levels used in determining fair value and by security class or other financial instruments, are shown below (in thousands). 
Investments in securities
Level 1
Level 2
Level 3
Total
Common Stocks
$1,817,299
$
$
$1,817,299
Repurchase Agreements
28,954
28,954
Rights
Total Investments in Securities
$1,817,299
$28,954
$
$1,846,253
See accompanying Notes to Financial Statements.
June 30, 2024
8
Semi-Annual

Small-Mid Cap Value Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
 




Issuer
Shares




Value
 
Common Stocks
 
Industrials—23.8%
 
ABM Industries, Inc.
 
831
$42
 
AGCO Corp.
 
293
29
*
Alaska Air Group, Inc.
 
893
36
 
Allegion PLC
 
234
28
 
Armstrong World Industries, Inc.
 
295
33
 
Flowserve Corp.
 
772
37
 
Hillenbrand, Inc.
 
717
29
 
Hub Group, Inc.
 
767
33
 
JB Hunt Transport Services, Inc.
 
214
34
 
Knight-Swift Transportation Holdings, Inc.
 
705
35
 
Korn Ferry
 
510
34
 
Maximus, Inc.
 
383
33
*
Middleby Corp.
 
235
29
 
MillerKnoll, Inc.
 
562
15
*
OPENLANE, Inc.
 
1,596
27
 
Rush Enterprises, Inc.
 
798
33
 
Snap-on, Inc.
 
117
31
 
Tecnoglass, Inc.
 
781
39
 
Terex Corp.
 
537
29
 
Timken Co.
 
422
34
 
 
 
640
 
Financials—13.1%
 
American Financial Group, Inc.
 
213
26
 
Ameris Bancorp
 
708
36
 
Carlyle Group, Inc.
 
806
32
 
Columbia Banking System, Inc.
 
1,787
36
 
Compass Diversified Holdings
 
1,521
33
 
East West Bancorp, Inc.
 
467
34
 
Eastern Bankshares, Inc.
 
2,109
29
 
Global Payments, Inc.
 
344
33
 
Pacific Premier Bancorp, Inc.
 
1,340
31
 
Pinnacle Financial Partners, Inc.
 
450
36
 
Webster Financial Corp
 
610
27
 
 
 
353
 
Consumer Discretionary—10.2%
*
Adient PLC
 
865
21
 
Advance Auto Parts, Inc.
 
401
25
 
Bloomin' Brands, Inc.
 
1,261
24
 
Brunswick Corp.
 
201
15
 
Carter's, Inc.
 
324
20
 
Cracker Barrel Old Country Store, Inc.
 
307
13
*
Helen of Troy Ltd.
 
322
30
 
LKQ Corp.
 
803
33
*
Taylor Morrison Home Corp.
 
792
44
 
Whirlpool Corp.
 
280
29
 
Winnebago Industries, Inc.
 
379
21
 
 
 
275
 
Real Estate—9.3%
 
Camden Property Trust
 
220
24
 
Elme Communities
 
1,549
25
 
Four Corners Property Trust, Inc.
 
1,199
29
 
Healthpeak Properties, Inc.
 
1,973
39
 
Host Hotels & Resorts, Inc.
 
1,649
30
 
Kite Realty Group Trust
 
1,604
36
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Real Estate—(continued)
 
Regency Centers Corp.
 
550
$34
 
STAG Industrial, Inc.
 
948
34
 
 
 
251
 
Information Technology—8.9%
 
Amdocs Ltd.
 
431
34
 
Avnet, Inc.
 
740
38
 
Belden, Inc.
 
355
33
 
Jabil, Inc.
 
294
32
 
Kulicke & Soffa Industries, Inc.
 
606
30
*
Qorvo, Inc.
 
358
42
*
Verint Systems, Inc.
 
969
31
 
 
 
240
 
Health Care—8.8%
*
Acadia Healthcare Co., Inc.
 
388
26
 
Encompass Health Corp.
 
330
28
*
Envista Holdings Corp.
 
1,101
18
*
Globus Medical, Inc.
 
409
28
 
Labcorp Holdings, Inc.
 
171
35
*
Lantheus Holdings, Inc.
 
457
37
*
QuidelOrtho Corp.
 
437
15
 
Teleflex, Inc.
 
172
36
 
Viatris, Inc.
 
1,154
12
 
 
 
235
 
Materials—8.1%
*
Axalta Coating Systems Ltd.
 
1,063
36
 
Commercial Metals Co.
 
713
39
 
Crown Holdings, Inc.
 
453
34
 
Greif, Inc.
 
449
26
 
Orion SA
 
1,323
29
 
Royal Gold, Inc.
 
164
21
 
Silgan Holdings, Inc.
 
757
32
 
 
 
217
 
Energy—6.1%
*
Expro Group Holdings NV
 
1,509
34
 
Matador Resources Co.
 
616
37
 
PBF Energy, Inc.
 
583
27
 
Permian Resources Corp.
 
1,735
28
 
SM Energy Co.
 
878
38
 
 
 
164
 
Consumer Staples—5.4%
 
Ingredion, Inc.
 
361
41
 
Molson Coors Beverage Co.
 
660
34
*
TreeHouse Foods, Inc.
 
900
33
*
U.S. Foods Holding Corp.
 
709
38
 
 
 
146
 
Utilities—3.2%
 
NiSource, Inc.
 
1,022
29
 
Northwestern Energy Group, Inc.
 
498
25
 
Spire, Inc.
 
528
32
 
 
 
86
See accompanying Notes to Financial Statements.
June 30, 2024
9
William Blair Funds

Small-Mid Cap Value Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Communication Services—1.2%
 
John Wiley & Sons, Inc.
 
752
$31
 
Total Common Stocks98.1%
(cost $2,678)
 
2,638
 
Total Investments98.1%
(cost $2,678)
 
2,638
 
Cash and other assets,
less liabilities—1.9%
 
52
 
Net Assets—100.0%
 
$2,690

 
PLC
Public Limited Company
 
*
Non-income producing security.
U.S. listed foreign security
As of June 30, 2024, the value of investments in securities and other financial instruments, segregated by their hierarchical input levels used in determining fair value and by security class or other financial instruments, are shown below (in thousands). 
Investments in securities
Level 1
Level 2
Level 3
Total
Common Stocks
$2,638
$
$
$2,638
See accompanying Notes to Financial Statements.
June 30, 2024
10
Semi-Annual

Small Cap Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
 




Issuer
Shares




Value
 
Common Stocks
 
Health Care—23.7%
*
Acadia Healthcare Co., Inc.
 
168,659
$11,391
*
Alignment Healthcare, Inc.
 
958,198
7,493
*
Amicus Therapeutics, Inc.
 
918,290
9,109
*
BioLife Solutions, Inc.
 
485,170
10,397
*
Blueprint Medicines Corp.
 
95,690
10,313
*
Certara, Inc.
 
484,943
6,716
*
Doximity, Inc.
 
291,230
8,146
 
Encompass Health Corp.
 
167,320
14,354
*
Establishment Labs Holdings, Inc.
 
158,638
7,209
*
Globus Medical, Inc.
 
162,280
11,115
*
Insmed, Inc.
 
228,870
15,334
*
Inspire Medical Systems, Inc.
 
48,510
6,492
*
Ligand Pharmaceuticals, Inc.
 
62,620
5,276
*
Merit Medical Systems, Inc.
 
145,490
12,505
*
Mirum Pharmaceuticals, Inc.
 
209,290
7,156
*
Neogen Corp.
 
509,730
7,967
*
OmniAb, Inc. 12.50 Earnout (Acquired
11/02/22, Cost $0)**,#
 
23,037
0
*
OmniAb, Inc. 15.00 Earnout (Acquired
11/02/22, Cost $0)**,#
 
23,037
0
*
RxSight, Inc.
 
76,660
4,613
*
Treace Medical Concepts, Inc.
 
1,036,314
6,892
*
Twist Bioscience Corp.
 
226,746
11,174
*
Veracyte, Inc.
 
383,320
8,307
*
Vericel Corp.
 
280,360
12,863
 
 
 
194,822
 
Industrials—17.8%
*
ACV Auctions, Inc.
 
650,810
11,877
 
Albany International Corp.
 
106,325
8,979
 
Atkore, Inc.
 
79,460
10,722
 
Brink's Co.
 
168,716
17,277
 
BWX Technologies, Inc.
 
178,117
16,921
*
Casella Waste Systems, Inc.
 
184,670
18,323
*
Chart Industries, Inc.
 
50,026
7,221
 
Douglas Dynamics, Inc.
 
131,415
3,075
*
Kornit Digital Ltd.
 
273,245
4,000
*
Mercury Systems, Inc.
 
299,156
8,074
*
Montrose Environmental Group, Inc.
 
157,298
7,009
*
Shoals Technologies Group, Inc.
 
571,066
3,564
 
Tecnoglass, Inc.
 
163,960
8,228
*
Verra Mobility Corp.
 
536,369
14,589
*
WNS Holdings Ltd.
 
128,710
6,757
 
 
 
146,616
 
Information Technology—16.7%
*
Agilysys, Inc.
 
14,164
1,475
*
Alarm.com Holdings, Inc.
 
161,720
10,276
*
Ambarella, Inc.
 
121,990
6,581
*
Clearwater Analytics Holdings, Inc.
 
379,241
7,024
 
Cognex Corp.
 
173,470
8,111
*
Guidewire Software, Inc.
 
97,370
13,426
*
JFrog Ltd.
 
232,230
8,720
*
Novanta, Inc.
 
64,350
10,496
*
Onto Innovation, Inc.
 
27,990
6,146
*
PDF Solutions, Inc.
 
231,121
8,408
*
PROS Holdings, Inc.
 
229,990
6,589
*
SiTime Corp.
 
64,245
7,991
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Information Technology—(continued)
*
SPS Commerce, Inc.
 
47,010
$8,845
*
Varonis Systems, Inc.
 
187,300
8,985
*
Vertex, Inc.
 
241,633
8,711
*
Workiva, Inc.
 
93,450
6,821
*
Zeta Global Holdings Corp.
 
501,960
8,860
 
 
 
137,465
 
Consumer Discretionary—11.4%
 
Arhaus, Inc.
 
383,320
6,493
*
Boot Barn Holdings, Inc.
 
59,654
7,691
 
Cheesecake Factory, Inc.
 
252,940
9,938
*
Dutch Bros, Inc.
 
103,520
4,286
*
Fox Factory Holding Corp.
 
169,610
8,174
*
Garrett Motion, Inc.
 
1,292,660
11,104
 
Golden Entertainment, Inc.
 
204,890
6,374
*
OneSpaWorld Holdings Ltd.
 
519,860
7,990
*
Planet Fitness, Inc.
 
115,280
8,483
*
Revolve Group, Inc.
 
162,507
2,586
*
Skyline Champion Corp.
 
194,740
13,194
 
Winmark Corp
 
22,052
7,776
 
 
 
94,089
 
Financials—8.1%
*
Baldwin Insurance Group, Inc.
 
367,319
13,029
*
Donnelley Financial Solutions, Inc.
 
98,490
5,872
*
Euronet Worldwide, Inc.
 
88,980
9,209
*
Flywire Corp.
 
495,800
8,126
 
StepStone Group, Inc.
 
179,070
8,218
 
Virtu Financial, Inc.
 
551,760
12,387
 
Western Alliance Bancorp
 
153,215
9,625
 
 
 
66,466
 
Energy—5.9%
*
Antero Resources Corp.
 
218,800
7,140
*
Green Plains, Inc.
 
308,282
4,889
 
New Fortress Energy, Inc.
 
491,450
10,802
 
TechnipFMC PLC
 
340,230
8,897
*
Weatherford International PLC
 
77,780
9,524
 
Whitecap Resources, Inc.
 
1,000,550
7,314
 
 
 
48,566
 
Materials—4.1%
 
Balchem Corp.
 
72,190
11,114
 
Orion SA
 
386,787
8,486
 
Sylvamo Corp.
 
102,700
7,045
 
U.S. Lime & Minerals, Inc.
 
19,026
6,929
 
 
 
33,574
 
Consumer Staples—4.0%
*
e.l.f. Beauty, Inc.
 
64,070
13,501
*
Vita Coco Co., Inc.
 
235,030
6,545
*
Vital Farms, Inc.
 
268,050
12,537
 
 
 
32,583
 
Real Estate—1.8%
 
Colliers International Group, Inc.
 
41,018
4,580
 
FirstService Corp.
 
68,547
10,444
 
 
 
15,024
 
Communication Services—1.7%
*
Gogo, Inc.
 
640,180
6,159
See accompanying Notes to Financial Statements.
June 30, 2024
11
William Blair Funds

Small Cap Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares or
Principal
Amount
Value
 
Common Stocks—(continued)
 
Communication Services—(continued)
*
QuinStreet, Inc.
 
145,231
$2,409
*
ZipRecruiter, Inc.
 
637,940
5,799
 
 
 
14,367
 
Total Common Stocks95.2%
(cost $664,983)
 
783,572
 
 




 
 
 




 
 
Exchange-Traded Funds
 
Exchange-Traded Funds—1.0%
 
 
iShares Russell 2000 Growth ETF
 
30,080
7,897
 
Total Exchange-Traded Funds1.0%
(cost $7,877)
 
7,897
 
 




 

 




 
 
Repurchase Agreements
 
Fixed Income Clearing Corporation, 2.300%
dated 06/28/24, due 07/01/24, repurchase
price $40,392, collateralized by
U.S. Treasury Inflation-Indexed Note,
0.125%, due 04/15/27, valued at $41,192
$
40,384
40,384
 
Total Repurchase Agreements4.9%
(cost $40,384)
 
40,384
 
Total Investments101.1%
(cost $713,244)
 
831,853
 
Liabilities, plus cash and
other assets—(1.1)%
 
(9,236
)
 
Net Assets—100.0%
 
$822,617

 
ETF
Exchange-Traded Fund
PLC
Public Limited Company
 
*
Non-income producing security.
U.S. listed foreign security
**
Fair valued pursuant to the Fund's Valuation Procedures. This
holding represents 0.00% of the Fund’s net assets at June 30, 2024.
#
Investment in securities not registered under the Securities Act of
1933 (excluding securities acquired pursuant to Rule 144A and
Regulation S). The value of such restricted securities represents
0.00% of the Fund’s net assets at June 30, 2024.
As of June 30, 2024, the value of investments in securities and other financial instruments, segregated by their hierarchical input levels used in determining fair value and by security class or other financial instruments, are shown below (in thousands). 
Investments in securities
Level 1
Level 2
Level 3
Total
Common Stocks
$783,572
$
$
$783,572
Repurchase Agreements
40,384
40,384
Exchange-Traded Funds
7,897
7,897
Total Investments in Securities
$791,469
$40,384
$
$831,853
See accompanying Notes to Financial Statements.
June 30, 2024
12
Semi-Annual

Small Cap Value Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)

 
 




Issuer
Shares




Value
 
Common Stocks
 
Industrials—20.7%
 
ABM Industries, Inc.
 
326,046
$16,488
 
Albany International Corp.
 
151,990
12,836
 
Armstrong World Industries, Inc.
 
108,495
12,286
 
Brady Corp.
 
245,978
16,239
*
Conduent, Inc.
 
2,540,104
8,281
 
CSG Systems International, Inc.
 
274,172
11,288
 
Deluxe Corp.
 
512,562
11,512
*
GrafTech International Ltd.
 
1,793,714
1,740
 
Granite Construction, Inc.
 
277,199
17,178
*
Great Lakes Dredge & Dock Corp.
 
971,399
8,529
 
Hillenbrand, Inc.
 
313,330
12,539
 
Hub Group, Inc.
 
332,528
14,315
*
Huron Consulting Group, Inc.
 
41,657
4,103
 
Korn Ferry
 
189,509
12,724
 
Marten Transport Ltd.
 
599,466
11,060
 
Maximus, Inc.
 
174,127
14,923
 
MillerKnoll, Inc.
 
373,815
9,902
*
OPENLANE, Inc.
 
562,487
9,332
 
Rush Enterprises, Inc.
 
313,622
13,131
 
Tecnoglass, Inc.
 
307,902
15,450
 
Terex Corp.
 
207,927
11,403
*
Thermon Group Holdings, Inc.
 
331,334
10,192
*
Titan Machinery, Inc.
 
370,605
5,893
 
Werner Enterprises, Inc.
 
295,487
10,587
 
 
 
271,931
 
Financials—19.4%
 
Ameris Bancorp
 
314,340
15,827
 
Atlantic Union Bankshares Corp.
 
272,818
8,962
 
Banc Of California, Inc.
 
1,024,690
13,096
 
Brightsphere Investment Group, Inc.
 
477,850
10,594
 
Columbia Banking System, Inc.
 
706,128
14,045
 
Compass Diversified Holdings
 
745,903
16,328
 
Eastern Bankshares, Inc.
 
997,442
13,944
 
Enterprise Financial Services Corp.
 
278,051
11,375
 
First Bancorp
 
318,902
10,179
 
First Merchants Corp.
 
328,658
10,941
 
Hancock Whitney Corp.
 
238,212
11,394
 
MGIC Investment Corp.
 
672,250
14,487
 
Old National Bancorp
 
828,513
14,242
 
Pacific Premier Bancorp, Inc.
 
523,161
12,017
 
Perella Weinberg Partners
 
496,071
8,061
 
Pinnacle Financial Partners, Inc.
 
174,508
13,968
*
PRA Group, Inc.
 
421,991
8,296
 
Seacoast Banking Corp. of Florida
 
465,461
11,004
 
Stellar Bancorp, Inc.
 
439,525
10,092
*
Texas Capital Bancshares, Inc.
 
251,495
15,376
 
WaFd, Inc.
 
372,305
10,640
 
 
 
254,868
 
Consumer Discretionary—13.4%
*
Adient PLC
 
329,889
8,151
 
Bloomin' Brands, Inc.
 
569,951
10,960
 
Carter's, Inc.
 
212,842
13,190
 
Cracker Barrel Old Country Store, Inc.
 
122,121
5,149
*
El Pollo Loco Holdings, Inc.
 
562,894
6,366
 
Golden Entertainment, Inc.
 
329,016
10,236
*
Helen of Troy Ltd.
 
126,743
11,754
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Consumer Discretionary—(continued)
 
La-Z-Boy, Inc.
 
399,479
$14,893
 
Monro, Inc.
 
401,678
9,584
 
Oxford Industries, Inc.
 
147,429
14,765
 
Standard Motor Products, Inc.
 
373,731
10,364
 
Steven Madden Ltd.
 
307,123
12,991
*
Taylor Morrison Home Corp.
 
310,975
17,240
*
Tri Pointe Homes, Inc.
 
455,871
16,981
*
Universal Electronics, Inc.
 
211,593
2,459
 
Winnebago Industries, Inc.
 
197,531
10,706
 
 
 
175,789
 
Information Technology—11.5%
 
ADTRAN Holdings, Inc.
 
1,770,434
9,313
 
AudioCodes Ltd.
 
556,102
5,772
 
Avnet, Inc.
 
291,172
14,992
 
Belden, Inc.
 
166,751
15,641
*
Cognyte Software Ltd.
 
1,097,682
8,386
*
Diodes, Inc.
 
190,199
13,681
*
Extreme Networks, Inc.
 
854,120
11,488
*
Knowles Corp.
 
891,393
15,385
 
Kulicke & Soffa Industries, Inc.
 
282,833
13,913
*
NetScout Systems, Inc.
 
446,564
8,168
*
Tower Semiconductor Ltd.
 
410,682
16,144
*
Verint Systems, Inc.
 
561,026
18,065
 
 
 
150,948
 
Real Estate—10.3%
 
CareTrust REIT, Inc.
 
627,448
15,749
 
DigitalBridge Group, Inc.
 
78,395
1,074
 
Elme Communities
 
771,477
12,290
 
Empire State Realty Trust, Inc.
 
1,489,363
13,970
 
Four Corners Property Trust, Inc.
 
556,678
13,733
 
Kite Realty Group Trust
 
776,161
17,371
 
LXP Industrial Trust
 
1,594,726
14,544
 
Pebblebrook Hotel Trust
 
866,271
11,911
 
STAG Industrial, Inc.
 
352,789
12,722
 
Sunstone Hotel Investors, Inc.
 
955,682
9,996
 
UMH Properties, Inc.
 
797,555
12,753
 
 
 
136,113
 
Energy—6.5%
*
Dril-Quip, Inc.
 
541,948
10,080
*
Expro Group Holdings NV
 
839,219
19,235
*
Gulfport Energy Corp.
 
88,314
13,335
 
Matador Resources Co.
 
219,749
13,097
 
PBF Energy, Inc.
 
285,348
13,132
 
SM Energy Co.
 
398,534
17,229
 
 
 
86,108
 
Materials—5.4%
 
Commercial Metals Co.
 
272,357
14,977
*
Ecovyst, Inc.
 
1,451,197
13,017
 
Greif, Inc.
 
213,672
12,280
*
Lithium Americas Argentina Corp.
 
1,300,462
4,162
 
Myers Industries, Inc.
 
514,973
6,890
 
Orion SA
 
582,057
12,770
 
Ryerson Holding Corp.
 
344,208
6,712
 
 
 
70,808
See accompanying Notes to Financial Statements.
June 30, 2024
13
William Blair Funds

Small Cap Value Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Consumer Staples—4.4%
 
Cal-Maine Foods, Inc.
 
267,478
$16,346
*
Central Garden & Pet Co.
 
281,067
9,284
 
Edgewell Personal Care Co.
 
256,905
10,325
 
Spectrum Brands Holdings, Inc.
 
110,536
9,498
*
TreeHouse Foods, Inc.
 
359,483
13,171
 
 
 
58,624
 
Health Care—3.9%
*
ANI Pharmaceuticals, Inc.
 
194,910
12,412
*
Avanos Medical, Inc.
 
566,392
11,283
*
Integer Holdings Corp.
 
82,092
9,505
*
Lantheus Holdings, Inc.
 
199,427
16,012
*
ModivCare, Inc.
 
102,507
2,690
 
 
 
51,902
 
Utilities—1.7%
 
Northwestern Energy Group, Inc.
 
219,475
10,991
 
Spire, Inc.
 
182,947
11,111
 
 
 
22,102
 
Communication Services—1.3%
 
John Wiley & Sons, Inc.
 
420,274
17,105
 
Total Common Stocks98.5%
(cost $1,284,384)
 
1,296,298
 
 




Issuer

Principal
Amount




Value
 
Repurchase Agreements
 
Fixed Income Clearing Corporation,
2.300% dated 06/28/24, due 07/01/24,
repurchase price $19,247, collateralized
by U.S. Treasury Inflation-Indexed
Note, 0.125%, due 04/15/27, valued at
$19,629
$
19,243
$19,243
 
Total Repurchase Agreements1.5%
(cost $19,243)
 
19,243
 
Total Investments100.0%
(cost $1,303,627)
 
1,315,541
 
Cash and other assets,
less liabilities—0.0%
 
429
 
Net Assets—100.0%
 
$1,315,970

 
PLC
Public Limited Company
REIT
Real Estate Investment Trust
 
*
Non-income producing security.
U.S. listed foreign security
As of June 30, 2024, the value of investments in securities and other financial instruments, segregated by their hierarchical input levels used in determining fair value and by security class or other financial instruments, are shown below (in thousands). 
Investments in securities
Level 1
Level 2
Level 3
Total
Common Stocks
$1,296,298
$
$
$1,296,298
Repurchase Agreements
19,243
19,243
Total Investments in Securities
$1,296,298
$19,243
$
$1,315,541
See accompanying Notes to Financial Statements.
June 30, 2024
14
Semi-Annual

Global Leaders Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
 




Issuer
Shares




Value
 
Common Stocks
 
Western Hemisphere—56.5%
 
 
Canada—1.5%
 
Canadian Pacific Kansas City Ltd.
(Road & Rail)
 
19,663
$1,548
 
United States—55.0%
 
Advanced Drainage Systems, Inc.
(Building Products)
 
4,476
718
*
Advanced Micro Devices, Inc.
(Semiconductors & Semiconductor
Equipment)
 
7,406
1,201
 
Alphabet, Inc.—Class A
(Interactive Media & Services)
 
24,780
4,514
*
Amazon.com, Inc.
(Multiline Retail)
 
18,788
3,631
 
Applied Materials, Inc.
(Semiconductors & Semiconductor
Equipment)
 
6,730
1,588
*
Autodesk, Inc.
(Software)
 
3,683
911
 
Booz Allen Hamilton Holding Corp.
(Professional Services)
 
8,376
1,289
 
Broadcom, Inc.
(Semiconductors & Semiconductor
Equipment)
 
605
971
*
Chipotle Mexican Grill, Inc.
(Hotels, Restaurants & Leisure)
 
14,150
887
*
Copart, Inc.
(Commercial Services & Supplies)
 
29,336
1,589
 
Crown Holdings, Inc.
(Containers & Packaging)
 
18,913
1,407
 
Graco, Inc.
(Machinery)
 
6,221
493
*
IDEXX Laboratories, Inc.
(Health Care Equipment & Supplies)
 
2,327
1,134
 
Intercontinental Exchange, Inc.
(Capital Markets)
 
8,627
1,181
 
Intuit, Inc.
(Software)
 
1,602
1,053
*
Intuitive Surgical, Inc.
(Health Care Equipment & Supplies)
 
2,750
1,223
 
Mastercard, Inc.
(Diversified Financial Services)
 
7,597
3,351
 
Merck & Co., Inc.
(Pharmaceuticals)
 
7,863
973
 
Meta Platforms, Inc.
(Interactive Media & Services)
 
5,501
2,774
 
Microsoft Corp.
(Software)
 
15,292
6,835
*
Monster Beverage Corp.
(Beverages)
 
18,313
915
 
Murphy USA, Inc.
(Specialty Retail)
 
3,611
1,695
 
NextEra Energy, Inc.
(Electric Utilities)
 
10,451
740
 
NVIDIA Corp.
(Semiconductors & Semiconductor
Equipment)
 
26,050
3,218
 
Old Dominion Freight Line, Inc.
(Road & Rail)
 
7,102
1,254
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Western Hemisphere—(continued)
 
 
United States—(continued)
*
O'Reilly Automotive, Inc.
(Specialty Retail)
 
731
$772
*
Palo Alto Networks, Inc.
(Software)
 
1,652
560
 
Progressive Corp.
(Insurance)
 
3,553
738
*
ServiceNow, Inc.
(Software)
 
1,351
1,063
*
Synopsys, Inc.
(Software)
 
2,253
1,341
 
Texas Instruments, Inc.
(Semiconductors & Semiconductor
Equipment)
 
3,981
774
 
Thermo Fisher Scientific, Inc.
(Life Sciences Tools & Services)
 
1,380
763
*
Ulta Beauty, Inc.
(Specialty Retail)
 
3,236
1,249
 
Vulcan Materials Co.
(Construction Materials)
 
5,214
1,297
 
Watsco, Inc.
(Trading Companies & Distributors)
 
2,214
1,026
 
West Pharmaceutical Services, Inc.
(Life Sciences Tools & Services)
 
2,389
787
 
Zoetis, Inc.
(Pharmaceuticals)
 
6,499
1,127
 
 
 
57,042
 
Europe Ex-U.K.—26.9%
 
 
Denmark—4.4%
 
DSV AS
(Air Freight & Logistics)
 
8,101
1,241
 
Novo Nordisk AS
(Pharmaceuticals)
 
22,591
3,262
 
 
 
4,503
 
France—7.8%
 
Airbus SE
(Aerospace & Defense)
 
13,315
1,829
 
Hermes International SCA
(Textiles, Apparel & Luxury Goods)
 
738
1,691
 
LVMH Moet Hennessy Louis Vuitton SE
(Textiles, Apparel & Luxury Goods)
 
1,670
1,276
 
Schneider Electric SE
(Electrical Equipment)
 
4,087
982
 
TotalEnergies SE
(Oil, Gas & Consumable Fuels)
 
24,003
1,602
 
Vinci SA
(Construction & Engineering)
 
6,619
698
 
 
 
8,078
 
Germany—1.6%
 
Infineon Technologies AG
(Semiconductors & Semiconductor
Equipment)
 
15,388
565
 
MTU Aero Engines AG
(Aerospace & Defense)
 
4,418
1,130
 
 
 
1,695
 
Ireland—5.8%
 
Accenture PLC
(IT Services)
 
3,992
1,211
See accompanying Notes to Financial Statements.
June 30, 2024
15
William Blair Funds

Global Leaders Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Europe Ex-U.K.—(continued)
 
 
Ireland—(continued)
*
ICON PLC
(Life Sciences Tools & Services)
 
2,879
$903
 
Linde PLC
(Chemicals)
 
2,793
1,226
 
Ryanair Holdings PLC—ADR
(Airlines)
 
8,797
1,024
 
Trane Technologies PLC
(Building Products)
 
5,017
1,650
 
 
 
6,014
 
Italy—1.0%
 
Ferrari NV
(Automobiles)
 
2,447
999
 
Netherlands—2.1%
 
ASML Holding NV
(Semiconductors & Semiconductor
Equipment)
 
2,122
2,191
 
Sweden—3.1%
 
Atlas Copco AB
(Machinery)
 
118,218
2,222
 
Evolution AB
(Hotels, Restaurants & Leisure)
 
9,466
986
 
 
 
3,208
 
Switzerland—1.1%
 
Partners Group Holding AG
(Capital Markets)
 
923
1,186
 
Emerging Asia—8.3%
 
 
India—2.6%
 
HDFC Bank Ltd.—ADR
(Banks)
 
19,873
1,278
 
Reliance Industries Ltd.
(Oil, Gas & Consumable Fuels)
 
37,765
1,417
 
 
 
2,695
 
Taiwan—5.7%
 
MediaTek, Inc.
(Semiconductors & Semiconductor
Equipment)
 
31,000
1,338
 
Taiwan Semiconductor Manufacturing Co.
Ltd.—ADR
(Semiconductors & Semiconductor
Equipment)
 
26,019
4,522
 
 
 
5,860
 
Issuer
Shares or
Principal
Amount
Value
 
Common Stocks—(continued)
 
United Kingdom—5.4%
 
 
3i Group PLC
(Capital Markets)
 
20,498
$795
 
Ashtead Group PLC
(Trading Companies & Distributors)
 
14,350
958
 
Compass Group PLC
(Hotels, Restaurants & Leisure)
 
61,575
1,681
 
Experian PLC
(Professional Services)
 
18,500
862
 
Halma PLC
(Electronic Equipment, Instruments &
Components)
 
38,935
1,332
 
 
 
5,628
 
Japan—1.2%
 
 
Keyence Corp.
(Electronic Equipment, Instruments &
Components)
 
2,700
1,184
 
Total Common Stocks98.3%
(cost $64,852)
 
101,831
 
 




 
 




 
 
Repurchase Agreements
 
Fixed Income Clearing Corporation, 2.300%
dated 06/28/24, due 07/01/24, repurchase
price $1,762, collateralized by
U.S. Treasury Note, 2.25%, due 08/15/27,
valued at $1,797
$
1,762
1,761
 
Total Repurchase Agreements1.7%
(cost $1,761)
 
1,761
 
Total Investments100.0%
(cost $66,613)
 
103,592
 
Cash and other assets,
less liabilities0.0%
 
32
 
Net Assets100.0%
 
$103,624

 
ADR
American Depositary Deposit
PLC
Public Limited Company
 
*
Non-income producing security.
U.S. listed foreign security
As of June 30, 2024, the value of investments in securities and other financial instruments, segregated by their hierarchical input levels used in determining fair value and by security class or other financial instruments, are shown below (in thousands). 
Investments in securities
Level 1
Level 2
Level 3
Total
Common Stocks
$101,831
$
$
$101,831
Repurchase Agreements
1,761
1,761
Total Investments in Securities
$101,831
$1,761
$
$103,592
See accompanying Notes to Financial Statements.
June 30, 2024
16
Semi-Annual

International Leaders Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
 




Issuer
Shares




Value
 
Common Stocks
 
Europe Ex-U.K.—43.2%
 
 
Denmark—4.8%
 
DSV AS
(Air Freight & Logistics)
 
79,532
$12,186
 
Novo Nordisk AS
(Pharmaceuticals)
 
303,806
43,870
 
 
 
56,056
 
France—12.3%
 
Airbus SE
(Aerospace & Defense)
 
108,679
14,928
 
Capgemini SE
(IT Services)
 
67,961
13,516
 
Dassault Systemes SE
(Software)
 
226,670
8,569
 
L'Oreal SA
(Personal Products)
 
34,731
15,252
 
LVMH Moet Hennessy Louis Vuitton SE
(Textiles, Apparel & Luxury Goods)
 
20,166
15,411
 
Safran SA
(Aerospace & Defense)
 
88,398
18,688
 
Schneider Electric SE
(Electrical Equipment)
 
91,685
22,024
 
Thales SA
(Aerospace & Defense)
 
65,174
10,435
 
TotalEnergies SE
(Oil, Gas & Consumable Fuels)
 
191,528
12,785
 
Vinci SA
(Construction & Engineering)
 
124,660
13,134
 
 
 
144,742
 
Germany—2.6%
 
Infineon Technologies AG
(Semiconductors & Semiconductor
Equipment)
 
323,890
11,899
 
SAP SE
(Software)
 
89,776
18,222
 
 
 
30,121
 
Ireland—4.7%
*
ICON PLC
(Life Sciences Tools & Services)
 
84,377
26,450
 
Kingspan Group PLC
(Building Products)
 
161,164
13,722
 
Linde PLC
(Chemicals)
 
33,127
14,536
 
 
 
54,708
 
Italy—2.0%
 
Ferrari NV
(Automobiles)
 
31,382
12,815
 
Moncler SpA
(Textiles, Apparel & Luxury Goods)
 
178,826
10,928
 
 
 
23,743
 
Netherlands—5.0%
 
ASML Holding NV
(Semiconductors & Semiconductor
Equipment)
 
45,435
46,916
 
BE Semiconductor Industries NV
(Semiconductors & Semiconductor
Equipment)
 
71,703
11,991
 
 
 
58,907
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Europe Ex-U.K.—(continued)
 
 
Spain—3.5%
 
Amadeus IT Group SA
(Hotels, Restaurants & Leisure)
 
303,873
$20,223
 
Industria de Diseno Textil SA
(Specialty Retail)
 
419,972
20,851
 
 
 
41,074
 
Sweden—3.4%
 
Atlas Copco AB
(Machinery)
 
1,393,763
26,194
 
Evolution AB
(Hotels, Restaurants & Leisure)
 
129,068
13,444
 
 
 
39,638
 
Switzerland—4.9%
 
ABB Ltd.
(Electrical Equipment)
 
293,257
16,294
 
Lonza Group AG
(Life Sciences Tools & Services)
 
23,959
13,078
 
Partners Group Holding AG
(Capital Markets)
 
12,300
15,799
 
Sika AG
(Chemicals)
 
44,690
12,793
 
 
 
57,964
 
Emerging Asia—17.4%
 
 
China—1.8%
*
PDD Holdings, Inc.—ADR
(Multiline Retail)
 
76,000
10,104
*
Trip.com Group Ltd.
(Hotels, Restaurants & Leisure)
 
219,950
10,551
 
 
 
20,655
 
India—5.2%
 
HDFC Bank Ltd.
(Banks)
 
1,064,052
21,501
 
ICICI Bank Ltd.
(Banks)
 
844,878
12,131
 
Reliance Industries Ltd.
(Oil, Gas & Consumable Fuels)
 
730,516
27,405
 
 
 
61,037
 
South Korea—3.3%
 
Samsung Electronics Co. Ltd.
(Technology Hardware, Storage &
Peripherals)
 
259,349
15,355
 
SK Hynix, Inc.
(Semiconductors & Semiconductor
Equipment)
 
135,566
23,292
 
 
 
38,647
 
Taiwan—7.1%
 
MediaTek, Inc.
(Semiconductors & Semiconductor
Equipment)
 
645,000
27,835
 
Taiwan Semiconductor Manufacturing
Co. Ltd.
(Semiconductors & Semiconductor
Equipment)
 
1,872,000
55,742
 
 
 
83,577
 
Japan—14.7%
 
 
Chugai Pharmaceutical Co. Ltd.
(Pharmaceuticals)
 
316,700
11,251
See accompanying Notes to Financial Statements.
June 30, 2024
17
William Blair Funds

International Leaders Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Japan—(continued)
 
 
Daiichi Sankyo Co. Ltd.
(Pharmaceuticals)
 
453,900
$15,584
 
Hoya Corp.
(Health Care Equipment & Supplies)
 
206,600
24,019
 
ITOCHU Corp.
(Trading Companies & Distributors)
 
189,400
9,246
 
Keyence Corp.
(Electronic Equipment, Instruments &
Components)
 
34,900
15,304
 
Lasertec Corp.
(Semiconductors & Semiconductor
Equipment)
 
66,100
14,827
 
Mitsui & Co. Ltd.
(Trading Companies & Distributors)
 
419,800
9,526
 
Shin-Etsu Chemical Co. Ltd.
(Chemicals)
 
357,500
13,861
 
SMC Corp.
(Machinery)
 
20,200
9,585
 
Tokio Marine Holdings, Inc.
(Insurance)
 
548,900
20,487
 
Tokyo Electron Ltd.
(Semiconductors & Semiconductor
Equipment)
 
129,900
28,178
 
 
 
171,868
 
United Kingdom—12.2%
 
 
3i Group PLC
(Capital Markets)
 
388,192
15,045
 
AstraZeneca PLC
(Pharmaceuticals)
 
146,244
22,842
 
BAE Systems PLC
(Aerospace & Defense)
 
877,751
14,646
 
Compass Group PLC
(Hotels, Restaurants & Leisure)
 
702,627
19,185
 
Experian PLC
(Professional Services)
 
440,563
20,528
 
Haleon PLC
(Personal Products)
 
3,339,237
13,618
 
Halma PLC
(Electronic Equipment, Instruments &
Components)
 
383,619
13,122
 
London Stock Exchange Group PLC
(Capital Markets)
 
207,577
24,666
 
 
 
143,652
 
Issuer
Shares or
Principal
Amount
Value
 
Common Stocks—(continued)
 
Western Hemisphere—6.5%
 
 
Canada—6.5%
 
Canadian Pacific Kansas City Ltd.
(Road & Rail)
 
195,039
$15,355
 
Constellation Software, Inc.
(Software)
 
5,628
16,217
 
Dollarama, Inc.
(Multiline Retail)
 
193,552
17,672
 
Intact Financial Corp.
(Insurance)
 
92,507
15,418
*
Shopify, Inc.
(IT Services)
 
170,676
11,273
 
 
 
75,935
 
Emerging Latin America—2.4%
 
 
Brazil—2.4%
 
Itau Unibanco Holding SA.—ADR
(Banks)
 
1,605,308
9,375
*
MercadoLibre, Inc.
(Multiline Retail)
 
11,685
19,203
 
 
 
28,578
 
Total Common Stocks96.4%
(cost $853,023)
 
1,130,902
 
 




 
 




 
 
Repurchase Agreements
 
Fixed Income Clearing Corporation,
2.300% dated 06/28/24, due 07/01/24,
repurchase price $35,601, collateralized
by U.S. Treasury Inflation-Indexed
Note, 0.125%, due 04/15/27, valued at
$36,306
$
35,594
35,594
 
Total Repurchase Agreements3.1%
(cost $35,594)
 
35,594
 
Total Investments99.5%
(cost $888,617)
 
1,166,496
 
Cash and other assets,
less liabilities0.5%
 
6,301
 
Net Assets100.0%
 
$1,172,797

 
ADR
American Depositary Deposit
PLC
Public Limited Company
 
*
Non-income producing security.
U.S. listed foreign security
As of June 30, 2024, the value of investments in securities and other financial instruments, segregated by their hierarchical input levels used in determining fair value and by security class or other financial instruments, are shown below (in thousands). 
Investments in securities
Level 1
Level 2
Level 3
Total
Common Stocks
$1,130,902
$
$
$1,130,902
Repurchase Agreements
35,594
35,594
Total Investments in Securities
$1,130,902
$35,594
$
$1,166,496
See accompanying Notes to Financial Statements.
June 30, 2024
18
Semi-Annual

International Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
 




Issuer
Shares




Value
 
Common Stocks
 
Europe Ex-U.K.—38.8%
 
 
Belgium—0.1%
 
D'ieteren Group
(Distributors)
 
4,397
$933
 
Denmark—3.4%
 
DSV AS
(Air Freight & Logistics)
 
74,759
11,454
 
Novo Nordisk AS
(Pharmaceuticals)
 
270,715
39,092
 
 
 
50,546
 
Finland—0.3%
 
Metso OYJ
(Machinery)
 
226,695
2,400
 
Valmet OYJ
(Machinery)
 
72,489
2,072
 
 
 
4,472
 
France—10.7%
 
Airbus SE
(Aerospace & Defense)
 
114,156
15,680
 
Capgemini SE
(IT Services)
 
44,042
8,759
 
Dassault Systemes SE
(Software)
 
402,332
15,210
 
Hermes International SCA
(Textiles, Apparel & Luxury Goods)
 
6,439
14,757
 
L'Oreal SA
(Personal Products)
 
26,918
11,821
 
LVMH Moet Hennessy Louis
Vuitton SE
(Textiles, Apparel & Luxury Goods)
 
16,737
12,791
 
Publicis Groupe SA
(Media)
 
125,560
13,364
 
Safran SA
(Aerospace & Defense)
 
85,889
18,157
 
Schneider Electric SE
(Electrical Equipment)
 
61,596
14,796
 
SES-imagotag SA
(Electronic Equipment, Instruments
& Components)
 
16,236
2,266
 
Thales SA
(Aerospace & Defense)
 
79,008
12,650
 
TotalEnergies SE
(Oil, Gas & Consumable Fuels)
 
179,726
11,997
 
Vinci SA
(Construction & Engineering)
 
47,494
5,004
 
 
 
157,252
 
Germany—4.3%
 
CTS Eventim AG & Co. KGaA
(Entertainment)
 
84,030
7,010
 
Hannover Rueck SE
(Insurance)
 
41,370
10,487
 
MTU Aero Engines AG
(Aerospace & Defense)
 
51,840
13,258
 
Nemetschek SE
(Software)
 
35,239
3,466
 
SAP SE
(Software)
 
92,193
18,712
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Europe Ex-U.K.—(continued)
 
 
Germany—(continued)
 
Siltronic AG
(Semiconductors & Semiconductor
Equipment)
 
21,450
$1,663
 
Symrise AG
(Chemicals)
 
68,481
8,383
 
 
 
62,979
 
Ireland—4.1%
 
Accenture PLC
(IT Services)
 
39,128
11,872
*
ICON PLC
(Life Sciences Tools & Services)
 
48,131
15,088
 
Kingspan Group PLC
(Building Products)
 
131,295
11,178
 
Linde PLC
(Chemicals)
 
33,524
14,711
 
Ryanair Holdings PLC—ADR
(Airlines)
 
67,856
7,901
 
 
 
60,750
 
Italy—1.4%
 
Azimut Holding SpA
(Capital Markets)
 
82,815
1,953
 
Brunello Cucinelli SpA
(Textiles, Apparel & Luxury Goods)
 
52,887
5,296
 
Ferrari NV
(Automobiles)
 
23,399
9,555
 
Moncler SpA
(Textiles, Apparel & Luxury Goods)
 
75,493
4,613
 
 
 
21,417
 
Netherlands—4.3%
 
ASML Holding NV
(Semiconductors & Semiconductor
Equipment)
 
36,513
37,704
 
BE Semiconductor Industries NV
(Semiconductors & Semiconductor
Equipment)
 
46,100
7,709
 
IMCD NV
(Trading Companies & Distributors)
 
42,360
5,866
 
Wolters Kluwer NV
(Professional Services)
 
69,600
11,538
 
 
 
62,817
 
Norway—0.1%
 
Kongsberg Gruppen ASA
(Aerospace & Defense)
 
26,529
2,162
 
Spain—1.7%
 
Amadeus IT Group SA
(Hotels, Restaurants & Leisure)
 
153,422
10,210
 
Industria de Diseno Textil SA
(Specialty Retail)
 
303,221
15,055
 
 
 
25,265
 
Sweden—4.2%
 
AddTech AB
(Trading Companies & Distributors)
 
88,456
2,198
 
Atlas Copco AB
(Machinery)
 
803,884
15,108
 
Beijer Ref AB
(Trading Companies & Distributors)
 
535,947
8,268
See accompanying Notes to Financial Statements.
June 30, 2024
19
William Blair Funds

International Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Europe Ex-U.K.—(continued)
 
 
Sweden—(continued)
 
Evolution AB
(Hotels, Restaurants & Leisure)
 
89,746
$9,348
 
Fortnox AB
(Software)
 
398,054
2,403
 
Hemnet Group AB
(Interactive Media & Services)
 
131,088
3,960
 
Hexagon AB
(Electronic Equipment, Instruments
& Components)
 
730,055
8,241
 
Indutrade AB
(Machinery)
 
211,266
5,414
 
Lifco AB
(Industrial Conglomerates)
 
207,126
5,687
 
Nibe Industrier AB
(Building Products)
 
286,834
1,216
 
 
 
61,843
 
Switzerland—4.2%
 
ABB Ltd.
(Electrical Equipment)
 
131,763
7,321
 
Belimo Holding AG
(Building Products)
 
6,674
3,347
 
Galenica AG
(Health Care Providers & Services)
 
44,230
3,621
 
Lonza Group AG
(Life Sciences Tools & Services)
 
19,517
10,653
 
Partners Group Holding AG
(Capital Markets)
 
7,863
10,099
 
Siegfried Holding AG
(Life Sciences Tools & Services)
 
3,602
3,741
 
Sika AG
(Chemicals)
 
35,922
10,283
 
Tecan Group AG
(Life Sciences Tools & Services)
 
11,982
4,012
 
VAT Group AG
(Machinery)
 
16,665
9,449
 
 
 
62,526
 
Emerging Asia—17.8%
 
 
China—2.3%
 
Airtac International Group
(Machinery)
 
93,713
2,854
 
Fuyao Glass Industry Group Co. Ltd
(Auto Components)
 
518,610
3,403
*
Meituan
(Hotels, Restaurants & Leisure)
 
720,100
10,245
 
Tencent Holdings Ltd.
(Interactive Media & Services)
 
230,200
10,978
*
Trip.com Group Ltd.
(Hotels, Restaurants & Leisure)
 
135,300
6,490
 
 
 
33,970
 
India—5.9%
 
Apollo Hospitals Enterprise Ltd.
(Health Care Providers & Services)
 
29,896
2,218
*
Britannia Industries Ltd.
(Food Products)
 
46,624
3,050
 
Havells India Ltd.
(Electrical Equipment)
 
210,344
4,591
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Emerging Asia—(continued)
 
 
India—(continued)
 
HDFC Bank Ltd.
(Banks)
 
655,058
$13,237
 
ICICI Bank Ltd.
(Banks)
 
525,441
7,544
*
InterGlobe Aviation Ltd.
(Airlines)
 
105,046
5,335
 
Mahindra & Mahindra Ltd.
(Automobiles)
 
313,420
10,774
 
Max Healthcare Institute Ltd.
(Health Care Providers & Services)
 
229,904
2,602
 
Nestle India Ltd.
(Food Products)
 
74,021
2,264
 
Reliance Industries Ltd.
(Oil, Gas & Consumable Fuels)
 
536,814
20,138
 
Tata Consultancy Services Ltd.
(IT Services)
 
143,384
6,718
 
Titan Co. Ltd.
(Textiles, Apparel & Luxury Goods)
 
55,475
2,264
 
Trent Ltd.
(Specialty Retail)
 
58,328
3,830
 
Varun Beverages Ltd.
(Beverages)
 
124,724
2,433
 
 
 
86,998
 
Indonesia—1.2%
 
Bank Central Asia Tbk. PT
(Banks)
 
28,825,100
17,471
 
South Korea—2.8%
 
Samsung Electronics Co. Ltd.
(Technology Hardware, Storage &
Peripherals)
 
378,705
22,422
 
SK Hynix, Inc.
(Semiconductors & Semiconductor
Equipment)
 
107,696
18,504
 
 
 
40,926
 
Taiwan—5.6%
 
Alchip Technologies Ltd.
(Semiconductors & Semiconductor
Equipment)
 
38,000
2,876
 
Global Unichip Corp.
(Semiconductors & Semiconductor
Equipment)
 
42,000
2,078
 
Globalwafers Co. Ltd.
(Semiconductors & Semiconductor
Equipment)
 
157,000
2,608
 
MediaTek, Inc.
(Semiconductors & Semiconductor
Equipment)
 
367,000
15,838
 
Taiwan Semiconductor Manufacturing
Co. Ltd.—ADR
(Semiconductors & Semiconductor
Equipment)
 
307,068
53,371
 
Unimicron Technology Corp.
(Electronic Equipment, Instruments
& Components)
 
357,000
1,981
 
Wiwynn Corp.
(Technology Hardware, Storage &
Peripherals)
 
47,000
3,832
 
 
 
82,584
See accompanying Notes to Financial Statements.
June 30, 2024
20
Semi-Annual

International Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Japan—16.9%
 
 
Advantest Corp.
(Semiconductors & Semiconductor
Equipment)
 
284,500
$11,361
 
Ajinomoto Co., Inc.
(Food Products)
 
164,100
5,754
 
BayCurrent Consulting, Inc.
(Professional Services)
 
79,500
1,601
 
Chugai Pharmaceutical Co. Ltd.
(Pharmaceuticals)
 
298,900
10,619
 
Daifuku Co. Ltd.
(Machinery)
 
333,800
6,245
 
Daiichi Sankyo Co. Ltd.
(Pharmaceuticals)
 
367,300
12,611
 
Daikin Industries Ltd.
(Building Products)
 
27,800
3,865
 
Disco Corp.
(Semiconductors & Semiconductor
Equipment)
 
33,100
12,558
 
Harmonic Drive Systems, Inc.
(Machinery)
 
98,000
2,772
 
Hoya Corp.
(Health Care Equipment & Supplies)
 
119,700
13,916
 
Internet Initiative Japan, Inc.
(Diversified Telecommunication
Services)
 
141,800
2,088
 
ITOCHU Corp.
(Trading Companies & Distributors)
 
224,500
10,959
 
Japan Elevator Service Holdings Co.
Ltd.
(Commercial Services & Supplies)
 
131,500
2,113
 
Japan Exchange Group, Inc.
(Capital Markets)
 
276,900
6,457
 
Keyence Corp.
(Electronic Equipment, Instruments
& Components)
 
45,300
19,864
 
Kurita Water Industries Ltd.
(Machinery)
 
69,400
2,941
 
Lasertec Corp.
(Semiconductors & Semiconductor
Equipment)
 
48,500
10,879
 
MatsukiyoCocokara & Co.
(Food & Staples Retailing)
 
228,900
3,287
 
Mitsui & Co. Ltd.
(Trading Companies & Distributors)
 
172,000
3,903
 
MonotaRO Co. Ltd.
(Trading Companies & Distributors)
 
366,200
4,304
 
Nomura Research Institute Ltd.
(IT Services)
 
121,700
3,420
 
Pan Pacific International Holdings
Corp.
(Multiline Retail)
 
454,300
10,628
 
Rakus Co. Ltd.
(Software)
 
138,800
1,797
*
Rakuten Bank Ltd.
(Banks)
 
100,600
1,821
 
SCREEN Holdings Co. Ltd.
(Semiconductors & Semiconductor
Equipment)
 
48,900
4,407
*
SHIFT, Inc.
(IT Services)
 
18,100
1,640
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Japan—(continued)
 
 
Shin-Etsu Chemical Co. Ltd.
(Chemicals)
 
274,700
$10,651
 
SMC Corp.
(Machinery)
 
21,100
10,012
 
Socionext, Inc.
(Semiconductors & Semiconductor
Equipment)
 
85,200
2,017
 
Sumitomo Mitsui Financial Group, Inc.
(Banks)
 
217,300
14,485
 
Sundrug Co. Ltd.
(Food & Staples Retailing)
 
89,100
2,245
 
TechnoPro Holdings, Inc.
(Professional Services)
 
163,800
2,683
 
Tokio Marine Holdings, Inc.
(Insurance)
 
524,200
19,565
 
Tokyo Electron Ltd.
(Semiconductors & Semiconductor
Equipment)
 
73,200
15,879
 
 
 
249,347
 
United Kingdom—13.1%
 
 
3i Group PLC
(Capital Markets)
 
519,941
20,152
 
Ashtead Group PLC
(Trading Companies & Distributors)
 
92,419
6,171
 
AstraZeneca PLC
(Pharmaceuticals)
 
116,063
18,128
 
BAE Systems PLC
(Aerospace & Defense)
 
822,150
13,718
 
Beazley PLC
(Insurance)
 
469,143
4,199
 
Compass Group PLC
(Hotels, Restaurants & Leisure)
 
521,321
14,234
 
ConvaTec Group PLC
(Health Care Equipment & Supplies)
 
2,277,738
6,761
 
Diploma PLC
(Trading Companies & Distributors)
 
168,647
8,843
 
Experian PLC
(Professional Services)
 
253,083
11,792
 
Greggs PLC
(Hotels, Restaurants & Leisure)
 
115,846
4,059
 
Haleon PLC
(Personal Products)
 
2,518,952
10,272
 
Halma PLC
(Electronic Equipment, Instruments
& Components)
 
393,436
13,458
 
Intermediate Capital Group PLC
(Capital Markets)
 
308,476
8,509
 
London Stock Exchange Group PLC
(Capital Markets)
 
177,066
21,040
 
RELX PLC
(Professional Services)
 
280,972
12,925
 
Rotork PLC
(Machinery)
 
952,685
4,056
 
Smith & Nephew PLC
(Health Care Equipment & Supplies)
 
251,787
3,121
 
Softcat PLC
(IT Services)
 
133,223
3,060
See accompanying Notes to Financial Statements.
June 30, 2024
21
William Blair Funds

International Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
United Kingdom—(continued)
 
 
Spirax-Sarco Engineering PLC
(Machinery)
 
55,957
$5,998
 
Weir Group PLC
(Machinery)
 
116,224
2,915
 
 
 
193,411
 
Western Hemisphere—7.1%
 
 
Canada—7.1%
 
Alimentation Couche-Tard, Inc.
(Food & Staples Retailing)
 
167,353
9,391
 
Boyd Group Services, Inc.
(Commercial Services & Supplies)
 
12,692
2,384
 
Cameco Corp.
(Oil, Gas & Consumable Fuels)
 
135,003
6,642
 
Canadian National Railway Co.
(Road & Rail)
 
80,298
9,489
 
Canadian Pacific Kansas City Ltd.
(Road & Rail)
 
175,888
13,848
 
Constellation Software, Inc.
(Software)
 
4,304
12,401
 
Dollarama, Inc.
(Multiline Retail)
 
144,026
13,150
 
Intact Financial Corp.
(Insurance)
 
74,227
12,371
*
Kinaxis, Inc.
(Software)
 
22,700
2,618
 
Parkland Corp.
(Oil, Gas & Consumable Fuels)
 
136,390
3,823
*
Shopify, Inc.
(IT Services)
 
83,369
5,507
 
TFI International, Inc.
(Road & Rail)
 
42,738
6,206
 
Toromont Industries Ltd.
(Trading Companies & Distributors)
 
85,304
7,553
 
 
 
105,383
 
Emerging Latin America—2.4%
 
 
Brazil—1.4%
*
MercadoLibre, Inc.
(Multiline Retail)
 
6,671
10,963
 
Raia Drogasil SA
(Food & Staples Retailing)
 
681,764
3,132
 
Rumo SA
(Road & Rail)
 
605,500
2,244
 
WEG SA
(Electrical Equipment)
 
594,200
4,485
 
 
 
20,824
 
Mexico—0.8%
 
Grupo Aeroportuario del Sureste SAB
de CV—ADR
(Transportation Infrastructure)
 
10,181
3,049
 
Wal-Mart de Mexico SAB de CV
(Food & Staples Retailing)
 
2,444,200
8,349
 
 
 
11,398
 
Issuer
Shares or
Principal
Amount
Value
 
Common Stocks—(continued)
 
Emerging Latin
America—(continued)
 
 
Peru—0.2%
 
Credicorp Ltd.
(Banks)
 
18,288
$2,950
 
Asia Ex-Japan—1.7%
 
 
Australia—0.9%
 
Pro Medicus Ltd.
(Health Care Technology)
 
70,210
6,710
 
Steadfast Group Ltd.
(Insurance)
 
1,004,532
4,141
 
Technology One Ltd.
(Software)
 
207,483
2,575
 
 
 
13,426
 
Singapore—0.8%
 
DBS Group Holdings Ltd.
(Banks)
 
450,910
11,901
 
Emerging Europe, Mid-East,
Africa—0.5%
 
 
South Africa—0.5%
 
Bid Corp. Ltd.
(Food & Staples Retailing)
 
216,598
5,058
 
Clicks Group Ltd.
(Food & Staples Retailing)
 
122,402
2,317
 
 
 
7,375
 
Total Common Stocks98.3%
(cost $1,039,066)
 
1,450,926
 
 




 
 




 
 
Repurchase Agreements
 
Fixed Income Clearing Corporation,
2.300% dated 06/28/24, due 07/01/24,
repurchase price $17,761,
collateralized by U.S. Treasury
Inflation-Indexed Note, 0.125%, due
04/15/27, valued at $18,116
$
17,761
17,761
 
Total Repurchase Agreements1.2%
(cost $17,761)
 
17,761
 
Total Investments99.5%
(cost $1,056,827)
 
1,468,687
 
Cash and other assets,
less liabilities0.5%
 
6,907
 
Net Assets100.0%
 
$1,475,594

 
ADR
American Depositary Deposit
PLC
Public Limited Company
 
U.S. listed foreign security
*
Non-income producing security.
See accompanying Notes to Financial Statements.
June 30, 2024
22
Semi-Annual

International Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
As of June 30, 2024, the value of investments in securities and other financial instruments, segregated by their hierarchical input levels used in determining fair value and by security class or other financial instruments, are shown below (in thousands). 
Investments in securities
Level 1
Level 2
Level 3
Total
Common Stocks
$1,450,926
$
$
$1,450,926
Repurchase Agreements
17,761
17,761
Total Investments in Securities
$1,450,926
$17,761
$
$1,468,687
See accompanying Notes to Financial Statements.
June 30, 2024
23
William Blair Funds

Institutional International Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
 




Issuer
Shares




Value
 
Common Stocks
 
Europe Ex-U.K.—38.9%
 
 
Belgium—0.1%
 
D'ieteren Group
(Distributors)
 
2,903
$616
 
Denmark—3.4%
 
DSV AS
(Air Freight & Logistics)
 
49,370
7,564
 
Novo Nordisk AS
(Pharmaceuticals)
 
178,777
25,816
 
 
 
33,380
 
Finland—0.3%
 
Metso OYJ
(Machinery)
 
149,707
1,585
 
Valmet OYJ
(Machinery)
 
47,872
1,368
 
 
 
2,953
 
France—10.7%
 
Airbus SE
(Aerospace & Defense)
 
75,387
10,355
 
Capgemini SE
(IT Services)
 
29,085
5,784
 
Dassault Systemes SE
(Software)
 
265,696
10,045
 
Hermes International SCA
(Textiles, Apparel & Luxury Goods)
 
4,252
9,745
 
L'Oreal SA
(Personal Products)
 
17,777
7,807
 
LVMH Moet Hennessy Louis Vuitton SE
(Textiles, Apparel & Luxury Goods)
 
11,053
8,447
 
Publicis Groupe SA
(Media)
 
82,919
8,825
 
Safran SA
(Aerospace & Defense)
 
56,720
11,991
 
Schneider Electric SE
(Electrical Equipment)
 
40,678
9,771
 
SES-imagotag SA
(Electronic Equipment, Instruments &
Components)
 
10,722
1,496
 
Thales SA
(Aerospace & Defense)
 
52,176
8,354
 
TotalEnergies SE
(Oil, Gas & Consumable Fuels)
 
118,689
7,923
 
Vinci SA
(Construction & Engineering)
 
30,908
3,256
 
 
 
103,799
 
Germany—4.3%
 
CTS Eventim AG & Co. KGaA
(Entertainment)
 
55,493
4,630
 
Hannover Rueck SE
(Insurance)
 
27,321
6,926
 
MTU Aero Engines AG
(Aerospace & Defense)
 
34,235
8,755
 
Nemetschek SE
(Software)
 
23,271
2,289
 
SAP SE
(Software)
 
60,868
12,354
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Europe Ex-U.K.—(continued)
 
 
Germany—(continued)
 
Siltronic AG
(Semiconductors & Semiconductor
Equipment)
 
14,165
$1,098
 
Symrise AG
(Chemicals)
 
45,224
5,536
 
 
 
41,588
 
Ireland—4.1%
 
Accenture PLC
(IT Services)
 
25,840
7,840
*
ICON PLC
(Life Sciences Tools & Services)
 
31,786
9,964
 
Kingspan Group PLC
(Building Products)
 
86,706
7,382
 
Linde PLC
(Chemicals)
 
22,139
9,715
 
Ryanair Holdings PLC—ADR
(Airlines)
 
44,394
5,169
 
 
 
40,070
 
Italy—1.5%
 
Azimut Holding SpA
(Capital Markets)
 
54,690
1,290
 
Brunello Cucinelli SpA
(Textiles, Apparel & Luxury Goods)
 
34,926
3,497
 
Ferrari NV
(Automobiles)
 
15,351
6,269
 
Moncler SpA
(Textiles, Apparel & Luxury Goods)
 
49,855
3,046
 
 
 
14,102
 
Netherlands—4.3%
 
ASML Holding NV
(Semiconductors & Semiconductor
Equipment)
 
24,112
24,898
 
BE Semiconductor Industries NV
(Semiconductors & Semiconductor
Equipment)
 
30,444
5,091
 
IMCD NV
(Trading Companies & Distributors)
 
27,974
3,874
 
Wolters Kluwer NV
(Professional Services)
 
45,963
7,620
 
 
 
41,483
 
Norway—0.1%
 
Kongsberg Gruppen ASA
(Aerospace & Defense)
 
17,520
1,428
 
Spain—1.7%
 
Amadeus IT Group SA
(Hotels, Restaurants & Leisure)
 
101,318
6,743
 
Industria de Diseno Textil SA
(Specialty Retail)
 
199,588
9,909
 
 
 
16,652
 
Sweden—4.2%
 
AddTech AB
(Trading Companies & Distributors)
 
58,401
1,451
 
Atlas Copco AB
(Machinery)
 
530,878
9,977
 
Beijer Ref AB
(Trading Companies & Distributors)
 
353,933
5,460
See accompanying Notes to Financial Statements.
June 30, 2024
24
Semi-Annual

Institutional International Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Europe Ex-U.K.—(continued)
 
 
Sweden—(continued)
 
Evolution AB
(Hotels, Restaurants & Leisure)
 
59,268
$6,173
 
Fortnox AB
(Software)
 
262,871
1,587
 
Hemnet Group AB
(Interactive Media & Services)
 
86,569
2,615
 
Hexagon AB
(Electronic Equipment, Instruments &
Components)
 
482,121
5,443
 
Indutrade AB
(Machinery)
 
139,518
3,575
 
Lifco AB
(Industrial Conglomerates)
 
136,784
3,756
 
Nibe Industrier AB
(Building Products)
 
186,724
792
 
 
 
40,829
 
Switzerland—4.2%
 
ABB Ltd.
(Electrical Equipment)
 
87,016
4,835
 
Belimo Holding AG
(Building Products)
 
4,407
2,210
 
Galenica AG
(Health Care Providers & Services)
 
29,209
2,391
 
Lonza Group AG
(Life Sciences Tools & Services)
 
12,889
7,035
 
Partners Group Holding AG
(Capital Markets)
 
5,193
6,670
 
Siegfried Holding AG
(Life Sciences Tools & Services)
 
2,379
2,471
 
Sika AG
(Chemicals)
 
23,723
6,791
 
Tecan Group AG
(Life Sciences Tools & Services)
 
7,912
2,649
 
VAT Group AG
(Machinery)
 
11,005
6,240
 
 
 
41,292
 
Emerging Asia—17.8%
 
 
China—2.3%
 
Airtac International Group
(Machinery)
 
62,204
1,895
 
Fuyao Glass Industry Group Co. Ltd
(Auto Components)
 
342,400
2,247
*
Meituan
(Hotels, Restaurants & Leisure)
 
475,500
6,765
 
Tencent Holdings Ltd.
(Interactive Media & Services)
 
152,100
7,253
*
Trip.com Group Ltd.
(Hotels, Restaurants & Leisure)
 
89,350
4,286
 
 
 
22,446
 
India—5.9%
 
Apollo Hospitals Enterprise Ltd.
(Health Care Providers & Services)
 
19,744
1,465
*
Britannia Industries Ltd.
(Food Products)
 
30,790
2,014
 
Havells India Ltd.
(Electrical Equipment)
 
138,909
3,032
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Emerging Asia—(continued)
 
 
India—(continued)
 
HDFC Bank Ltd.
(Banks)
 
432,594
$8,741
 
ICICI Bank Ltd.
(Banks)
 
346,963
4,982
*
InterGlobe Aviation Ltd.
(Airlines)
 
69,372
3,523
 
Mahindra & Mahindra Ltd.
(Automobiles)
 
206,982
7,115
 
Max Healthcare Institute Ltd.
(Health Care Providers & Services)
 
151,826
1,719
 
Nestle India Ltd.
(Food Products)
 
48,882
1,495
 
Reliance Industries Ltd.
(Oil, Gas & Consumable Fuels)
 
354,507
13,299
 
Tata Consultancy Services Ltd.
(IT Services)
 
94,690
4,436
 
Titan Co. Ltd.
(Textiles, Apparel & Luxury Goods)
 
36,636
1,495
 
Trent Ltd.
(Specialty Retail)
 
38,520
2,529
 
Varun Beverages Ltd.
(Beverages)
 
82,366
1,607
 
 
 
57,452
 
Indonesia—1.2%
 
Bank Central Asia Tbk. PT
(Banks)
 
19,035,830
11,538
 
South Korea—2.8%
 
Samsung Electronics Co. Ltd.
(Technology Hardware, Storage &
Peripherals)
 
250,093
14,807
 
SK Hynix, Inc.
(Semiconductors & Semiconductor
Equipment)
 
71,122
12,220
 
 
 
27,027
 
Taiwan—5.6%
 
Alchip Technologies Ltd.
(Semiconductors & Semiconductor
Equipment)
 
26,000
1,968
 
Global Unichip Corp.
(Semiconductors & Semiconductor
Equipment)
 
28,000
1,385
 
Globalwafers Co. Ltd.
(Semiconductors & Semiconductor
Equipment)
 
103,000
1,711
 
MediaTek, Inc.
(Semiconductors & Semiconductor
Equipment)
 
243,000
10,487
 
Taiwan Semiconductor Manufacturing
Co. Ltd.—ADR
(Semiconductors & Semiconductor
Equipment)
 
202,784
35,246
 
Unimicron Technology Corp.
(Electronic Equipment, Instruments &
Components)
 
236,000
1,309
 
Wiwynn Corp.
(Technology Hardware, Storage &
Peripherals)
 
31,000
2,527
 
 
 
54,633
See accompanying Notes to Financial Statements.
June 30, 2024
25
William Blair Funds

Institutional International Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Japan—16.9%
 
 
Advantest Corp.
(Semiconductors & Semiconductor
Equipment)
 
187,900
$7,504
 
Ajinomoto Co., Inc.
(Food Products)
 
108,300
3,797
 
BayCurrent Consulting, Inc.
(Professional Services)
 
52,500
1,057
 
Chugai Pharmaceutical Co. Ltd.
(Pharmaceuticals)
 
197,400
7,013
 
Daifuku Co. Ltd.
(Machinery)
 
220,500
4,125
 
Daiichi Sankyo Co. Ltd.
(Pharmaceuticals)
 
242,500
8,326
 
Daikin Industries Ltd.
(Building Products)
 
18,200
2,531
 
Disco Corp.
(Semiconductors & Semiconductor
Equipment)
 
21,900
8,309
 
Harmonic Drive Systems, Inc.
(Machinery)
 
64,700
1,830
 
Hoya Corp.
(Health Care Equipment & Supplies)
 
79,000
9,185
 
Internet Initiative Japan, Inc.
(Diversified Telecommunication
Services)
 
93,600
1,379
 
ITOCHU Corp.
(Trading Companies & Distributors)
 
148,300
7,239
 
Japan Elevator Service Holdings Co. Ltd.
(Commercial Services & Supplies)
 
86,800
1,395
 
Japan Exchange Group, Inc.
(Capital Markets)
 
182,900
4,265
 
Keyence Corp.
(Electronic Equipment, Instruments &
Components)
 
29,900
13,111
 
Kurita Water Industries Ltd.
(Machinery)
 
45,600
1,933
 
Lasertec Corp.
(Semiconductors & Semiconductor
Equipment)
 
32,000
7,178
 
MatsukiyoCocokara & Co.
(Food & Staples Retailing)
 
151,200
2,171
 
Mitsui & Co. Ltd.
(Trading Companies & Distributors)
 
111,900
2,539
 
MonotaRO Co. Ltd.
(Trading Companies & Distributors)
 
241,800
2,842
 
Nomura Research Institute Ltd.
(IT Services)
 
80,300
2,256
 
Pan Pacific International Holdings Corp.
(Multiline Retail)
 
300,000
7,018
 
Rakus Co. Ltd.
(Software)
 
91,600
1,186
*
Rakuten Bank Ltd.
(Banks)
 
66,400
1,202
 
SCREEN Holdings Co. Ltd.
(Semiconductors & Semiconductor
Equipment)
 
32,300
2,911
*
SHIFT, Inc.
(IT Services)
 
11,900
1,078
 
Shin-Etsu Chemical Co. Ltd.
(Chemicals)
 
181,400
7,033
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Japan—(continued)
 
 
SMC Corp.
(Machinery)
 
13,900
$6,595
 
Socionext, Inc.
(Semiconductors & Semiconductor
Equipment)
 
56,300
1,333
 
Sumitomo Mitsui Financial Group, Inc.
(Banks)
 
143,500
9,566
 
Sundrug Co. Ltd.
(Food & Staples Retailing)
 
58,800
1,482
 
TechnoPro Holdings, Inc.
(Professional Services)
 
108,100
1,770
 
Tokio Marine Holdings, Inc.
(Insurance)
 
346,100
12,918
 
Tokyo Electron Ltd.
(Semiconductors & Semiconductor
Equipment)
 
48,300
10,477
 
 
 
164,554
 
United Kingdom—13.1%
 
 
3i Group PLC
(Capital Markets)
 
343,364
13,308
 
Ashtead Group PLC
(Trading Companies & Distributors)
 
60,245
4,022
 
AstraZeneca PLC
(Pharmaceuticals)
 
76,647
11,972
 
BAE Systems PLC
(Aerospace & Defense)
 
542,940
9,059
 
Beazley PLC
(Insurance)
 
309,817
2,773
 
Compass Group PLC
(Hotels, Restaurants & Leisure)
 
344,275
9,400
 
ConvaTec Group PLC
(Health Care Equipment & Supplies)
 
1,504,196
4,465
 
Diploma PLC
(Trading Companies & Distributors)
 
111,373
5,840
 
Experian PLC
(Professional Services)
 
166,586
7,762
 
Greggs PLC
(Hotels, Restaurants & Leisure)
 
76,504
2,681
 
Haleon PLC
(Personal Products)
 
1,663,491
6,784
 
Halma PLC
(Electronic Equipment, Instruments &
Components)
 
259,821
8,888
 
Intermediate Capital Group PLC
(Capital Markets)
 
203,714
5,619
 
London Stock Exchange Group PLC
(Capital Markets)
 
116,932
13,894
 
RELX PLC
(Professional Services)
 
185,551
8,535
 
Rotork PLC
(Machinery)
 
629,144
2,679
 
Smith & Nephew PLC
(Health Care Equipment & Supplies)
 
166,278
2,061
 
Softcat PLC
(IT Services)
 
87,979
2,021
See accompanying Notes to Financial Statements.
June 30, 2024
26
Semi-Annual

Institutional International Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
United Kingdom—(continued)
 
 
Spirax-Sarco Engineering PLC
(Machinery)
 
36,954
$3,961
 
Weir Group PLC
(Machinery)
 
76,753
1,925
 
 
 
127,649
 
Western Hemisphere—7.2%
 
 
Canada—7.2%
 
Alimentation Couche-Tard, Inc.
(Food & Staples Retailing)
 
110,519
6,202
 
Boyd Group Services, Inc.
(Commercial Services & Supplies)
 
8,382
1,574
 
Cameco Corp.
(Oil, Gas & Consumable Fuels)
 
89,154
4,386
 
Canadian National Railway Co.
(Road & Rail)
 
53,028
6,266
 
Canadian Pacific Kansas City Ltd.
(Road & Rail)
 
116,155
9,145
 
Constellation Software, Inc.
(Software)
 
2,842
8,189
 
Dollarama, Inc.
(Multiline Retail)
 
95,104
8,684
 
Intact Financial Corp.
(Insurance)
 
49,019
8,170
*
Kinaxis, Inc.
(Software)
 
14,990
1,729
 
Parkland Corp.
(Oil, Gas & Consumable Fuels)
 
90,070
2,525
*
Shopify, Inc.
(IT Services)
 
55,056
3,636
 
TFI International, Inc.
(Road & Rail)
 
28,223
4,098
 
Toromont Industries Ltd.
(Trading Companies & Distributors)
 
56,333
4,988
 
 
 
69,592
 
Emerging Latin America—2.4%
 
 
Brazil—1.4%
*
MercadoLibre, Inc.
(Multiline Retail)
 
4,405
7,239
 
Raia Drogasil SA
(Food & Staples Retailing)
 
450,300
2,069
 
Rumo SA
(Road & Rail)
 
399,900
1,482
 
WEG SA
(Electrical Equipment)
 
392,400
2,962
 
 
 
13,752
 
Mexico—0.8%
 
Grupo Aeroportuario del Sureste SAB de
CV—ADR
(Transportation Infrastructure)
 
6,723
2,014
 
Wal-Mart de Mexico SAB de CV
(Food & Staples Retailing)
 
1,614,100
5,513
 
 
 
7,527
 
Issuer
Shares or
Principal
Amount
Value
 
Common Stocks—(continued)
 
Emerging Latin
America—(continued)
 
 
Peru—0.2%
 
Credicorp Ltd.
(Banks)
 
12,077
$1,948
 
Asia Ex-Japan—1.7%
 
 
Australia—0.9%
 
Pro Medicus Ltd.
(Health Care Technology)
 
46,366
4,431
 
Steadfast Group Ltd.
(Insurance)
 
663,384
2,735
 
Technology One Ltd.
(Software)
 
137,020
1,700
 
 
 
8,866
 
Singapore—0.8%
 
DBS Group Holdings Ltd.
(Banks)
 
296,760
7,833
 
Emerging Europe, Mid-East,
Africa—0.5%
 
 
South Africa—0.5%
 
Bid Corp. Ltd.
(Food & Staples Retailing)
 
143,039
3,340
 
Clicks Group Ltd.
(Food & Staples Retailing)
 
80,833
1,530
 
 
 
4,870
 
Total Common Stocks98.5%
(cost $699,513)
 
957,879
 
 




 
 




 
 
Repurchase Agreements
 
Fixed Income Clearing Corporation,
2.300% dated 06/28/24, due 07/01/24,
repurchase price $24,758, collateralized
by U.S. Inflation-Indexed Treasury Note,
0.125%, due 04/15/27 and U.S. Treasury
Note, 2.250%, due 08/15/27, valued at
$25,248
$
24,753
24,753
 
Total Repurchase Agreements2.5%
(cost $24,753)
 
24,753
 
Total Investments101.0%
(cost $724,266)
 
982,632
 
Liabilities, plus cash and
other assets(1.0)%
 
(9,770
)
 
Net Assets100.0%
 
$972,862

 
ADR
American Depositary Deposit
PLC
Public Limited Company
 
U.S. listed foreign security
*
Non-income producing security.
See accompanying Notes to Financial Statements.
June 30, 2024
27
William Blair Funds

Institutional International Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
As of June 30, 2024, the value of investments in securities and other financial instruments, segregated by their hierarchical input levels used in determining fair value and by security class or other financial instruments, are shown below (in thousands). 
Investments in securities
Level 1
Level 2
Level 3
Total
Common Stocks
$957,879
$
$
$957,879
Repurchase Agreements
24,753
24,753
Total Investments in Securities
$957,879
$24,753
$
$982,632
See accompanying Notes to Financial Statements.
June 30, 2024
28
Semi-Annual

International Small Cap Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
 




Issuer
Shares




Value
 
Common Stocks
 
Europe Ex-U.K.—31.2%
 
 
Belgium—2.1%
 
Azelis Group NV
(Trading Companies & Distributors)
 
43,690
$784
 
D'ieteren Group
(Distributors)
 
15,555
3,300
 
 
 
4,084
 
Finland—0.7%
 
Puuilo OYJ
(Multiline Retail)
 
126,547
1,366
 
France—2.2%
 
Dassault Aviation SA
(Aerospace & Defense)
 
15,049
2,733
 
SES-imagotag SA
(Electronic Equipment, Instruments &
Components)
 
10,573
1,476
 
 
 
4,209
 
Germany—4.2%
 
CTS Eventim AG & Co. KGaA
(Entertainment)
 
41,228
3,440
 
Nemetschek SE
(Software)
 
17,087
1,681
 
Siltronic AG
(Semiconductors & Semiconductor
Equipment)
 
37,498
2,907
 
 
 
8,028
 
Italy—3.6%
 
Ariston Holding NV
(Building Products)
 
149,018
616
 
Azimut Holding SpA
(Capital Markets)
 
67,521
1,592
 
BFF Bank SpA
(Diversified Financial Services)
 
38,602
367
 
Brunello Cucinelli SpA
(Textiles, Apparel & Luxury Goods)
 
28,710
2,875
 
Carel Industries SpA
(Building Products)
 
50,912
943
 
Sanlorenzo SpA
(Leisure Products)
 
11,484
475
 
 
 
6,868
 
Jersey—0.8%
 
JTC PLC
(Capital Markets)
 
127,957
1,554
 
Norway—1.9%
 
Gjensidige Forsikring ASA
(Insurance)
 
51,465
920
 
Kongsberg Gruppen ASA
(Aerospace & Defense)
 
32,573
2,654
 
 
 
3,574
 
Sweden—11.9%
 
AddTech AB
(Trading Companies & Distributors)
 
122,174
3,036
 
Beijer Ref AB
(Trading Companies & Distributors)
 
230,841
3,561
*
BoneSupport Holding AB
(Biotechnology)
 
45,166
1,121
 
Bufab AB
(Trading Companies & Distributors)
 
25,855
954
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Europe Ex-U.K.—(continued)
 
 
Sweden—(continued)
 
Fortnox AB
(Software)
 
254,645
$1,537
 
Hemnet Group AB
(Interactive Media & Services)
 
114,510
3,459
 
Lagercrantz Group AB
(Electronic Equipment, Instruments &
Components)
 
160,820
2,613
 
Lifco AB
(Industrial Conglomerates)
 
132,718
3,644
 
MIPS AB
(Leisure Products)
 
29,034
1,137
*
Sdiptech AB
(Commercial Services & Supplies)
 
34,534
1,052
 
Vitec Software Group AB
(Software)
 
14,890
773
 
 
 
22,887
 
Switzerland—3.8%
 
Galenica AG
(Health Care Providers & Services)
 
20,387
1,669
 
Kardex Holding AG
(Machinery)
 
12,585
3,194
 
Siegfried Holding AG
(Life Sciences Tools & Services)
 
2,383
2,474
 
 
 
7,337
 
Japan—21.0%
 
 
ABC-Mart, Inc.
(Specialty Retail)
 
44,300
778
 
AZ-COM MARUWA Holdings, Inc.
(Air Freight & Logistics)
 
164,800
1,197
 
BayCurrent Consulting, Inc.
(Professional Services)
 
77,500
1,561
 
Fukuoka Financial Group, Inc.
(Banks)
 
94,600
2,528
 
Internet Initiative Japan, Inc.
(Diversified Telecommunication
Services)
 
126,300
1,860
 
Japan Elevator Service Holdings Co. Ltd.
(Commercial Services & Supplies)
 
175,400
2,818
 
Kokusai Electric Corp.
(Semiconductors & Semiconductor
Equipment)
 
79,800
2,326
 
Kotobuki Spirits Co. Ltd.
(Food Products)
 
90,700
1,053
 
Kurita Water Industries Ltd.
(Machinery)
 
42,300
1,793
 
Lifedrink Co., Inc.
(Beverages)
 
22,800
952
 
MEITEC Group Holdings, Inc.
(Professional Services)
 
152,100
3,080
 
OBIC Business Consultants Co. Ltd.
(Software)
 
58,200
2,433
 
Rakus Co. Ltd.
(Software)
 
78,400
1,015
*
Rakuten Bank Ltd.
(Banks)
 
120,200
2,176
 
Rorze Corp.
(Semiconductors & Semiconductor
Equipment)
 
7,600
1,500
See accompanying Notes to Financial Statements.
June 30, 2024
29
William Blair Funds

International Small Cap Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Japan—(continued)
 
 
Sangetsu Corp.
(Household Durables)
 
34,400
$637
 
SBI Sumishin Net Bank Ltd.
(Banks)
 
100,500
1,908
 
Senko Group Holdings Co. Ltd.
(Air Freight & Logistics)
 
133,800
937
*
SHIFT, Inc.
(IT Services)
 
13,500
1,223
 
Shimamura Co. Ltd.
(Specialty Retail)
 
21,200
964
 
SIGMAXYZ Holdings, Inc.
(Professional Services)
 
80,400
797
 
SMS Co. Ltd.
(Professional Services)
 
61,700
783
 
Socionext, Inc.
(Semiconductors & Semiconductor
Equipment)
 
53,000
1,255
 
Sundrug Co. Ltd.
(Food & Staples Retailing)
 
73,400
1,850
 
TechnoPro Holdings, Inc.
(Professional Services)
 
89,600
1,468
 
Yamazaki Baking Co. Ltd.
(Food Products)
 
62,700
1,287
 
 
 
40,179
 
Emerging Asia—20.6%
 
 
China—3.1%
 
Eastroc Beverage Group Co. Ltd.
(Beverages)
 
40,800
1,206
 
Proya Cosmetics Co. Ltd.
(Personal Products)
 
194,791
2,961
 
Silergy Corp.
(Semiconductors & Semiconductor
Equipment)
 
73,000
1,040
 
Yutong Bus Co. Ltd.
(Machinery)
 
222,800
787
 
 
 
5,994
 
India—9.2%
 
AU Small Finance Bank Ltd.
(Banks)
 
211,357
1,698
 
Cholamandalam Investment & Finance Co.
Ltd.
(Consumer Finance)
 
108,591
1,848
 
Coforge Ltd.
(IT Services)
 
28,790
1,870
 
Home First Finance Co. India Ltd.
(Diversified Financial Services)
 
103,041
1,271
 
Max Healthcare Institute Ltd.
(Health Care Providers & Services)
 
155,925
1,765
 
Motherson Sumi Wiring India Ltd.
(Auto Components)
 
1,753,716
1,576
*
Polycab India Ltd.
(Electrical Equipment)
 
19,873
1,605
 
Sundaram Finance Ltd.
(Consumer Finance)
 
31,919
1,786
 
Tube Investments of India Ltd.
(Auto Components)
 
32,361
1,649
 
Varun Beverages Ltd.
(Beverages)
 
129,375
2,524
 
 
 
17,592
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Emerging Asia—(continued)
 
 
Indonesia—0.5%
 
Bank Negara Indonesia Persero Tbk. PT
(Banks)
 
3,248,900
$925
 
Taiwan—7.8%
 
Advantech Co. Ltd.
(Technology Hardware, Storage &
Peripherals)
 
108,000
1,232
 
ASMedia Technology, Inc.
(Semiconductors & Semiconductor
Equipment)
 
40,000
2,762
 
ASPEED Technology, Inc.
(Semiconductors & Semiconductor
Equipment)
 
23,600
3,521
 
Global Unichip Corp.
(Semiconductors & Semiconductor
Equipment)
 
25,000
1,237
 
Gudeng Precision Industrial Co. Ltd.
(Semiconductors & Semiconductor
Equipment)
 
56,000
770
 
Innodisk Corp.
(Technology Hardware, Storage &
Peripherals)
 
164,000
1,526
 
Lotes Co. Ltd.
(Electronic Equipment, Instruments &
Components)
 
40,000
2,010
 
Voltronic Power Technology Corp.
(Electrical Equipment)
 
33,451
1,985
 
 
 
15,043
 
United Kingdom—11.0%
 
 
Beazley PLC
(Insurance)
 
417,594
3,737
 
Burford Capital Ltd
(Diversified Financial Services)
 
144,125
1,858
 
Diploma PLC
(Trading Companies & Distributors)
 
81,083
4,252
 
Greggs PLC
(Hotels, Restaurants & Leisure)
 
55,838
1,957
 
Hill & Smith PLC
(Metals & Mining)
 
8,451
210
 
Renishaw PLC
(Electronic Equipment, Instruments &
Components)
 
20,619
964
 
Rotork PLC
(Machinery)
 
649,427
2,765
 
Softcat PLC
(IT Services)
 
128,111
2,943
*
Trustpilot Group PLC
(Interactive Media & Services)
 
851,169
2,313
 
 
 
20,999
 
Western Hemisphere—8.6%
 
 
Canada—8.6%
 
Boyd Group Services, Inc.
(Commercial Services & Supplies)
 
10,315
1,938
 
Definity Financial Corp.
(Insurance)
 
57,220
1,881
 
EQB, Inc.
(Banks)
 
32,122
2,189
See accompanying Notes to Financial Statements.
June 30, 2024
30
Semi-Annual

International Small Cap Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Western Hemisphere—(continued)
 
 
Canada—(continued)
*
Kinaxis, Inc.
(Software)
 
6,742
$778
 
North West Co., Inc.
(Food & Staples Retailing)
 
126,472
3,831
 
Parkland Corp.
(Oil, Gas & Consumable Fuels)
 
95,999
2,691
 
Richelieu Hardware Ltd.
(Trading Companies & Distributors)
 
45,019
1,355
 
Stella-Jones, Inc.
(Paper & Forest Products)
 
27,937
1,823
 
 
 
16,486
 
Asia Ex-Japan—7.6%
 
 
Australia—5.9%
 
Pro Medicus Ltd.
(Health Care Technology)
 
52,083
4,978
 
Steadfast Group Ltd.
(Insurance)
 
758,349
3,126
 
Technology One Ltd.
(Software)
 
254,039
3,152
 
 
 
11,256
 
New Zealand—1.4%
 
Mainfreight Ltd.
(Air Freight & Logistics)
 
63,136
2,601
 
Singapore—0.3%
 
Sheng Siong Group Ltd.
(Food & Staples Retailing)
 
576,000
633
 
Emerging Latin America—5.0%
 
 
Mexico—5.0%
 
Arca Continental SAB de CV
(Beverages)
 
95,000
934
*
BBB Foods, Inc.
(Food & Staples Retailing)
 
52,508
1,253
 
Corp. Inmobiliaria Vesta SAB de CV
(Real Estate Management &
Development)
 
473,500
1,419
 
Corp. Inmobiliaria Vesta SAB de
CV—ADR
(Real Estate Management &
Development)
 
5,600
168
 
Grupo Aeroportuario del Centro Norte
SAB de CV
(Transportation Infrastructure)
 
218,200
1,852
 
Issuer
Shares or
Principal
Amount
Value
 
Common Stocks—(continued)
 
Emerging Latin
America—(continued)
 
 
Mexico—(continued)
 
Grupo Aeroportuario del Sureste SAB de
CV
(Transportation Infrastructure)
 
55,775
$1,682
 
Qualitas Controladora SAB de CV
(Insurance)
 
134,900
1,371
 
Regional SAB de CV
(Banks)
 
131,200
982
 
 
 
9,661
 
Emerging Europe, Mid-East,
Africa—2.7%
 
 
Greece—1.2%
 
JUMBO SA
(Specialty Retail)
 
82,012
2,361
 
Lithuania—0.6%
 
Baltic Classifieds Group PLC
(Interactive Media & Services)
 
360,700
1,094
 
Poland—0.9%
*
Dino Polska SA
(Food & Staples Retailing)
 
17,611
1,777
 
Total Common Stocks107.7%
(cost $168,972)
 
206,508
 
 




 
 




 
 
Repurchase Agreements
 
Fixed Income Clearing Corporation, 2.300%
dated 06/28/24, due 07/01/24, repurchase
price $4,021, collateralized by
U.S. Treasury Inflation-Indexed Note,
0.125%, due 04/15/27, valued at $4,101
$
4,021
4,021
 
Total Repurchase Agreements2.1%
(cost $4,021)
 
4,021
 
Total Investments109.8%
(cost $172,993)
 
210,529
 
Liabilities, plus cash and
other assets(9.8)%
 
(18,792
)
 
Net Assets100.0%
 
$191,737

 
ADR
American Depositary Deposit
PLC
Public Limited Company
 
*
Non-income producing security.
U.S. listed foreign security
As of June 30, 2024, the value of investments in securities and other financial instruments, segregated by their hierarchical input levels used in determining fair value and by security class or other financial instruments, are shown below (in thousands). 
Investments in securities
Level 1
Level 2
Level 3
Total
Common Stocks
$206,508
$
$
$206,508
Repurchase Agreements
4,021
4,021
Total Investments in Securities
$206,508
$4,021
$
$210,529
See accompanying Notes to Financial Statements.
June 30, 2024
31
William Blair Funds

Emerging Markets Leaders Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
 




Issuer
Shares




Value
 
Common Stocks
 
Emerging Asia—89.0%
 
 
China—23.1%
 
Airtac International Group
(Machinery)
 
103,000
$3,137
 
Alibaba Group Holding Ltd.
(Multiline Retail)
 
330,528
2,984
 
ANTA Sports Products Ltd.
(Textiles, Apparel & Luxury Goods)
 
201,000
1,930
 
Contemporary Amperex Technology Co.
Ltd.
(Electrical Equipment)
 
78,120
1,927
 
Huaming Power Equipment Co. Ltd.
(Machinery)
 
671,360
2,045
 
Kweichow Moutai Co. Ltd.
(Beverages)
 
3,759
756
*
Meituan
(Hotels, Restaurants & Leisure)
 
333,100
4,739
 
Midea Group Co. Ltd.
(Household Durables)
 
316,795
2,799
 
NARI Technology Co. Ltd.
(Electrical Equipment)
 
671,600
2,296
*
PDD Holdings, Inc.—ADR
(Multiline Retail)
 
14,054
1,869
 
Proya Cosmetics Co. Ltd.
(Personal Products)
 
127,300
1,935
 
Shenzhen Inovance Technology Co. Ltd.
(Machinery)
 
353,200
2,482
 
Sungrow Power Supply Co. Ltd.
(Electrical Equipment)
 
394,740
3,354
 
Tencent Holdings Ltd.
(Interactive Media & Services)
 
225,800
10,768
*
Trip.com Group Ltd.
(Hotels, Restaurants & Leisure)
 
85,700
4,111
 
 
 
47,132
 
Hong Kong—1.2%
 
AIA Group Ltd.
(Insurance)
 
364,800
2,476
 
India—24.1%
*
Britannia Industries Ltd.
(Food Products)
 
38,871
2,543
 
HDFC Bank Ltd.
(Banks)
 
219,390
4,433
 
ICICI Bank Ltd.
(Banks)
 
217,356
3,121
 
Infosys Ltd.
(IT Services)
 
176,015
3,307
*
InterGlobe Aviation Ltd.
(Airlines)
 
75,165
3,817
 
Kotak Mahindra Bank Ltd.
(Banks)
 
285,444
6,172
 
Mahindra & Mahindra Ltd.
(Automobiles)
 
101,004
3,472
*
MakeMyTrip Ltd.
(Hotels, Restaurants & Leisure)
 
27,107
2,280
 
Nestle India Ltd.
(Food Products)
 
113,672
3,477
 
Pidilite Industries Ltd.
(Chemicals)
 
83,346
3,158
*
Polycab India Ltd.
(Electrical Equipment)
 
36,900
2,980
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Emerging Asia—(continued)
 
 
India—(continued)
 
Reliance Industries Ltd.
(Oil, Gas & Consumable Fuels)
 
160,607
$6,025
 
Tata Consultancy Services Ltd.
(IT Services)
 
90,457
4,238
 
 
 
49,023
 
Indonesia—4.0%
 
Bank Central Asia Tbk. PT
(Banks)
 
8,512,800
5,160
 
Bank Rakyat Indonesia Persero Tbk. PT
(Banks)
 
10,487,000
2,946
 
 
 
8,106
 
South Korea—10.5%
 
Samsung Electronics Co. Ltd.
(Technology Hardware, Storage &
Peripherals)
 
267,564
15,842
 
SK Hynix, Inc.
(Semiconductors & Semiconductor
Equipment)
 
32,373
5,562
 
 
 
21,404
 
Taiwan—23.7%
 
Advantech Co. Ltd.
(Technology Hardware, Storage &
Peripherals)
 
188,000
2,144
 
Alchip Technologies Ltd.
(Semiconductors & Semiconductor
Equipment)
 
21,000
1,589
 
ASPEED Technology, Inc.
(Semiconductors & Semiconductor
Equipment)
 
10,000
1,492
 
Chroma ATE, Inc.
(Electronic Equipment, Instruments &
Components)
 
267,000
2,617
 
Delta Electronics, Inc.
(Electronic Equipment, Instruments &
Components)
 
274,000
3,273
*
eMemory Technology, Inc.
(Semiconductors & Semiconductor
Equipment)
 
16,000
1,267
 
Lotes Co. Ltd.
(Electronic Equipment, Instruments &
Components)
 
35,000
1,758
 
MediaTek, Inc.
(Semiconductors & Semiconductor
Equipment)
 
166,000
7,164
 
Sinbon Electronics Co. Ltd.
(Electronic Equipment, Instruments &
Components)
 
182,000
1,638
 
Taiwan Semiconductor Manufacturing
Co. Ltd.
(Semiconductors & Semiconductor
Equipment)
 
275,000
8,189
 
Taiwan Semiconductor Manufacturing
Co. Ltd.—ADR
(Semiconductors & Semiconductor
Equipment)
 
81,784
14,215
 
Voltronic Power Technology Corp.
(Electrical Equipment)
 
50,000
2,967
 
 
 
48,313
See accompanying Notes to Financial Statements.
June 30, 2024
32
Semi-Annual

Emerging Markets Leaders Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Emerging Asia—(continued)
 
 
Thailand—2.4%
 
Airports of Thailand PCL
(Transportation Infrastructure)
 
1,592,900
$2,507
 
Bangkok Dusit Medical Services PCL
(Health Care Providers & Services)
 
3,143,200
2,291
 
 
 
4,798
 
Emerging Latin America—17.8%
 
 
Argentina—1.3%
*
Globant SA
(IT Services)
 
14,811
2,640
 
Brazil—11.8%
 
B3 SA - Brasil Bolsa Balcao
(Capital Markets)
 
889,900
1,630
 
Banco BTG Pactual SA
(Capital Markets)
 
449,900
2,488
 
Itau Unibanco Holding SA.—ADR
(Banks)
 
547,668
3,198
*
MercadoLibre, Inc.
(Multiline Retail)
 
3,200
5,259
 
Raia Drogasil SA
(Food & Staples Retailing)
 
679,184
3,120
 
TOTVS SA
(Software)
 
479,200
2,608
 
WEG SA
(Electrical Equipment)
 
742,600
5,605
 
 
 
23,908
 
Mexico—3.7%
 
Grupo Aeroportuario del Pacifico SAB de
CV
(Transportation Infrastructure)
 
122,200
1,921
 
Grupo Financiero Banorte SAB de CV
(Banks)
 
256,100
1,993
 
Wal-Mart de Mexico SAB de CV
(Food & Staples Retailing)
 
1,071,000
3,658
 
 
 
7,572
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Emerging Latin
America—(continued)
 
 
Peru—1.0%
 
Credicorp Ltd.
(Banks)
 
12,553
$2,025
 
Emerging Europe, Mid-East,
Africa—4.9%
 
 
Saudi Arabia—2.1%
 
Saudi Arabian Oil Co.
(Oil, Gas & Consumable Fuels)
 
587,770
4,340
 
South Africa—2.1%
 
Capitec Bank Holdings Ltd.
(Banks)
 
16,792
2,426
 
Clicks Group Ltd.
(Food & Staples Retailing)
 
103,452
1,958
 
 
 
4,384
 
United Arab Emirates—0.7%
 
Abu Dhabi National Oil Co. for
Distribution PJSC
(Specialty Retail)
 
1,446,267
1,335
 
Total Common Stocks111.7%
(cost $184,645)
 
227,456
 
Total Investments111.7%
(cost $184,645)
 
227,456
 
Liabilities, plus cash and
other assets(11.7)%
 
(23,837
)
 
Net Assets100.0%
 
$203,619

 
ADR
American Depositary Deposit
 
*
Non-income producing security.
U.S. listed foreign security
As of June 30, 2024, the value of investments in securities and other financial instruments, segregated by their hierarchical input levels used in determining fair value and by security class or other financial instruments, are shown below (in thousands). 
Investments in securities
Level 1
Level 2
Level 3
Total
Common Stocks
$222,658
$4,798
$
$227,456
See accompanying Notes to Financial Statements.
June 30, 2024
33
William Blair Funds

Emerging Markets Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
 




Issuer
Shares




Value
 
Common Stocks
 
Emerging Asia—84.0%
 
 
China—16.0%
 
Airtac International Group
(Machinery)
 
201,852
$6,147
 
ANTA Sports Products Ltd.
(Textiles, Apparel & Luxury Goods)
 
202,000
1,940
 
Beijing Roborock Technology Co. Ltd.
(Household Durables)
 
46,416
2,496
 
Dong-E-E-Jiao Co. Ltd.
(Pharmaceuticals)
 
237,500
2,037
 
Eastroc Beverage Group Co. Ltd.
(Beverages)
 
93,000
2,748
 
Fuyao Glass Industry Group Co. Ltd
(Auto Components)
 
550,200
3,610
 
Henan Pinggao Electric Co. Ltd.
(Electrical Equipment)
 
1,155,600
3,079
 
Hisense Home Appliances Group Co.
Ltd.
(Household Durables)
 
512,300
2,262
 
Huaming Power Equipment Co. Ltd.
(Machinery)
 
846,100
2,578
 
Huaneng Lancang River Hydropower,
Inc.
(Independent Power and Renewable
Electricity Producers)
 
2,673,100
3,947
 
Kweichow Moutai Co. Ltd.
(Beverages)
 
19,974
4,015
*
Meituan
(Hotels, Restaurants & Leisure)
 
499,800
7,111
 
NetEase, Inc.
(Entertainment)
 
448,300
8,559
*
PDD Holdings, Inc.—ADR
(Multiline Retail)
 
97,755
12,997
 
Proya Cosmetics Co. Ltd.
(Personal Products)
 
209,488
3,185
 
Shanghai BOCHU Electronic Technology
Corp. Ltd.
(Electronic Equipment, Instruments &
Components)
 
85,050
2,150
 
Sieyuan Electric Co. Ltd.
(Electrical Equipment)
 
502,700
4,607
 
Tencent Holdings Ltd.
(Interactive Media & Services)
 
792,860
37,810
*
Trip.com Group Ltd.
(Hotels, Restaurants & Leisure)
 
179,350
8,603
 
Weichai Power Co. Ltd.
(Machinery)
 
1,706,000
3,264
 
Yutong Bus Co. Ltd.
(Machinery)
 
1,035,500
3,660
 
Zhongji Innolight Co. Ltd.
(Communications Equipment)
 
184,700
3,488
 
 
 
130,293
 
India—31.4%
 
ABB India Ltd.
(Electrical Equipment)
 
98,523
10,044
 
Apollo Hospitals Enterprise Ltd.
(Health Care Providers & Services)
 
67,279
4,993
 
Astral Ltd.
(Building Products)
 
84,595
2,424
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Emerging Asia—(continued)
 
 
India—(continued)
 
Bharat Electronics Ltd.
(Aerospace & Defense)
 
3,199,176
$11,868
 
Bharti Airtel Ltd.
(Wireless Telecommunication Services)
 
465,166
8,083
 
Central Depository Services India Ltd.
(Capital Markets)
 
104,745
3,024
 
CG Power & Industrial Solutions Ltd.
(Electrical Equipment)
 
356,969
3,013
 
Cholamandalam Investment & Finance
Co. Ltd.
(Consumer Finance)
 
142,197
2,420
 
Computer Age Management Services Ltd.
(Professional Services)
 
45,725
1,974
 
Cummins India Ltd.
(Machinery)
 
109,001
5,179
 
Dixon Technologies India Ltd.
(Household Durables)
 
60,515
8,684
*
GMR Airports Infrastructure Ltd.
(Transportation Infrastructure)
 
2,824,267
3,265
*
Godrej Properties Ltd.
(Real Estate Management &
Development)
 
113,009
4,334
 
HDFC Asset Management Co. Ltd.
(Capital Markets)
 
62,507
2,998
 
Hindustan Aeronautics Ltd.
(Aerospace & Defense)
 
139,507
8,813
 
ICICI Bank Ltd.
(Banks)
 
421,091
6,046
 
Indian Hotels Co. Ltd.
(Hotels, Restaurants & Leisure)
 
1,030,757
7,701
*
InterGlobe Aviation Ltd.
(Airlines)
 
117,732
5,979
 
Jindal Stainless Ltd.
(Metals & Mining)
 
290,430
2,866
*
Kaynes Technology India Ltd.
(Electronic Equipment, Instruments &
Components)
 
68,755
3,176
 
KEI Industries Ltd.
(Electrical Equipment)
 
97,521
5,159
 
KPIT Technologies Ltd.
(Software)
 
160,478
3,147
 
Larsen & Toubro Ltd.
(Construction & Engineering)
 
95,942
4,080
 
Macrotech Developers Ltd.
(Real Estate Management &
Development)
 
270,576
4,848
 
Mahindra & Mahindra Ltd.
(Automobiles)
 
279,977
9,624
*
MakeMyTrip Ltd.
(Hotels, Restaurants & Leisure)
 
46,460
3,907
 
Max Healthcare Institute Ltd.
(Health Care Providers & Services)
 
431,930
4,889
 
Motherson Sumi Wiring India Ltd.
(Auto Components)
 
2,358,221
2,119
 
Nestle India Ltd.
(Food Products)
 
126,343
3,864
 
NTPC Ltd.
(Independent Power and Renewable
Electricity Producers)
 
2,779,858
12,651
See accompanying Notes to Financial Statements.
June 30, 2024
34
Semi-Annual

Emerging Markets Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Emerging Asia—(continued)
 
 
India—(continued)
 
Oberoi Realty Ltd.
(Real Estate Management &
Development)
 
115,194
$2,438
 
Phoenix Mills Ltd.
(Real Estate Management &
Development)
 
104,870
4,496
 
Pidilite Industries Ltd.
(Chemicals)
 
57,719
2,187
 
REC Ltd.
(Diversified Financial Services)
 
542,184
3,420
 
Reliance Industries Ltd.
(Oil, Gas & Consumable Fuels)
 
549,765
20,624
 
Siemens Ltd.
(Industrial Conglomerates)
 
68,798
6,361
 
Sun Pharmaceutical Industries Ltd.
(Pharmaceuticals)
 
318,402
5,803
 
Tata Consultancy Services Ltd.
(IT Services)
 
59,578
2,791
 
Tata Consumer Products Ltd.
(Food Products)
 
237,854
3,132
 
Tata Motors Ltd.
(Automobiles)
 
507,703
6,023
 
Titagarh Rail System Ltd.
(Machinery)
 
216,808
4,828
 
Titan Co. Ltd.
(Textiles, Apparel & Luxury Goods)
 
68,496
2,795
 
Trent Ltd.
(Specialty Retail)
 
143,421
9,417
 
TVS Motor Co. Ltd.
(Automobiles)
 
107,221
3,035
 
UNO Minda Ltd.
(Auto Components)
 
282,248
3,696
 
Varun Beverages Ltd.
(Beverages)
 
589,421
11,500
*
Zomato Ltd.
(Hotels, Restaurants & Leisure)
 
1,237,309
2,965
 
 
 
256,683
 
Indonesia—3.9%
 
Bank Central Asia Tbk. PT
(Banks)
 
33,389,995
20,238
 
Bank Rakyat Indonesia Persero Tbk. PT
(Banks)
 
37,522,251
10,541
 
Mitra Adiperkasa Tbk. PT
(Multiline Retail)
 
13,591,200
1,224
 
 
 
32,003
 
Philippines—1.1%
 
BDO Unibank, Inc.
(Banks)
 
1,913,124
4,185
 
International Container Terminal Services,
Inc.
(Transportation Infrastructure)
 
747,780
4,463
 
 
 
8,648
 
South Korea—10.7%
 
Hanwha Aerospace Co. Ltd.
(Aerospace & Defense)
 
29,744
5,391
 
HD Hyundai Electric Co. Ltd.
(Electrical Equipment)
 
33,827
7,618
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Emerging Asia—(continued)
 
 
South Korea—(continued)
*
Samsung Biologics Co. Ltd.
(Life Sciences Tools & Services)
 
3,106
$1,641
 
Samsung Electronics Co. Ltd.
(Technology Hardware, Storage &
Peripherals)
 
608,545
36,031
 
SK Hynix, Inc.
(Semiconductors & Semiconductor
Equipment)
 
214,875
36,918
 
 
 
87,599
 
Taiwan—20.2%
 
Accton Technology Corp.
(Communications Equipment)
 
247,000
4,226
 
Alchip Technologies Ltd.
(Semiconductors & Semiconductor
Equipment)
 
31,000
2,346
 
Asia Vital Components Co. Ltd.
(Technology Hardware, Storage &
Peripherals)
 
145,000
3,419
 
ASMedia Technology, Inc.
(Semiconductors & Semiconductor
Equipment)
 
49,000
3,383
 
ASPEED Technology, Inc.
(Semiconductors & Semiconductor
Equipment)
 
45,300
6,758
 
Elite Material Co. Ltd.
(Electronic Equipment, Instruments &
Components)
 
293,000
4,290
*
eMemory Technology, Inc.
(Semiconductors & Semiconductor
Equipment)
 
60,000
4,753
 
Fortune Electric Co. Ltd.
(Electrical Equipment)
 
120,000
3,495
 
Lotes Co. Ltd.
(Electronic Equipment, Instruments &
Components)
 
129,132
6,488
 
MediaTek, Inc.
(Semiconductors & Semiconductor
Equipment)
 
366,000
15,795
 
Taiwan Semiconductor Manufacturing
Co. Ltd.
(Semiconductors & Semiconductor
Equipment)
 
522,000
15,543
 
Taiwan Semiconductor Manufacturing
Co. Ltd.—ADR
(Semiconductors & Semiconductor
Equipment)
 
466,968
81,164
 
Tripod Technology Corp.
(Electronic Equipment, Instruments &
Components)
 
500,000
3,368
 
Unimicron Technology Corp.
(Electronic Equipment, Instruments &
Components)
 
466,000
2,586
 
Wiwynn Corp.
(Technology Hardware, Storage &
Peripherals)
 
90,000
7,338
 
 
 
164,952
See accompanying Notes to Financial Statements.
June 30, 2024
35
William Blair Funds

Emerging Markets Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Emerging Asia—(continued)
 
 
Thailand—0.7%
 
Bangkok Dusit Medical Services PCL
(Health Care Providers & Services)
 
4,655,300
$3,393
 
Bumrungrad Hospital PCL
(Health Care Providers & Services)
 
350,000
2,356
 
 
 
5,749
 
Emerging Latin America—9.4%
 
 
Brazil—5.6%
 
Banco BTG Pactual SA
(Capital Markets)
 
752,600
4,162
 
Itau Unibanco Holding SA.—ADR
(Banks)
 
1,373,806
8,023
*
MercadoLibre, Inc.
(Multiline Retail)
 
12,447
20,455
*
NU Holdings Ltd.
(Banks)
 
529,117
6,820
 
Raia Drogasil SA
(Food & Staples Retailing)
 
721,088
3,313
 
WEG SA
(Electrical Equipment)
 
346,141
2,612
 
 
 
45,385
 
Mexico—3.8%
 
Alsea SAB de CV
(Hotels, Restaurants & Leisure)
 
588,900
2,047
 
Arca Continental SAB de CV
(Beverages)
 
338,500
3,329
*
BBB Foods, Inc.
(Food & Staples Retailing)
 
101,056
2,411
 
Corp. Inmobiliaria Vesta SAB de CV
(Real Estate Management &
Development)
 
745,700
2,235
 
Corp. Inmobiliaria Vesta SAB de
CV—ADR
(Real Estate Management &
Development)
 
19,530
586
 
Fomento Economico Mexicano SAB de
CV—ADR
(Beverages)
 
80,897
8,709
 
Grupo Financiero Banorte SAB de CV
(Banks)
 
712,700
5,546
 
Prologis Property Mexico SA de CV
REIT
(Industrial REITs)
 
899,004
2,931
 
Wal-Mart de Mexico SAB de CV
(Food & Staples Retailing)
 
934,000
3,190
 
 
 
30,984
 
Emerging Europe, Mid-East,
Africa—7.1%
 
 
Greece—0.7%
*
Eurobank Ergasias Services & Holdings
SA
(Banks)
 
2,606,452
5,641
 
Kazakhstan—0.5%
 
Kaspi.KZ JSC—ADR
(Consumer Finance)
 
29,545
3,812
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Emerging Europe, Mid-East,
Africa—(continued)
 
 
Saudi Arabia—2.5%
 
Aldrees Petroleum & Transport Services
Co.
(Oil, Gas & Consumable Fuels)
 
74,351
$2,422
 
Alinma Bank
(Banks)
 
235,211
1,950
 
Bupa Arabia for Cooperative Insurance
Co.
(Insurance)
 
41,522
2,845
 
Dr Sulaiman Al Habib Medical Services
Group Co.
(Health Care Providers & Services)
 
34,555
2,658
 
Elm Co.
(IT Services)
 
12,177
2,782
 
Leejam Sports Co. JSC
(Hotels, Restaurants & Leisure)
 
55,583
3,357
 
Riyadh Cables Group Co.
(Electrical Equipment)
 
85,842
2,307
 
Saudia Dairy & Foodstuff Co.
(Food Products)
 
19,284
1,801
 
 
 
20,122
 
South Africa—1.8%
 
Bid Corp. Ltd.
(Food & Staples Retailing)
 
94,199
2,200
 
Bidvest Group Ltd.
(Industrial Conglomerates)
 
185,969
2,907
 
Capitec Bank Holdings Ltd.
(Banks)
 
29,233
4,224
 
Clicks Group Ltd.
(Food & Staples Retailing)
 
155,097
2,936
 
Shoprite Holdings Ltd.
(Food & Staples Retailing)
 
180,739
2,822
 
 
 
15,089
 
Turkey—0.8%
 
BIM Birlesik Magazalar AS
(Food & Staples Retailing)
 
403,251
6,730
 
United Arab Emirates—0.8%
 
Emaar Properties PJSC
(Real Estate Management &
Development)
 
1,901,638
4,245
 
Salik Co. PJSC
(Transportation Infrastructure)
 
2,729,653
2,497
 
 
 
6,742
 
Total Common Stocks100.5%
(cost $583,354)
 
820,432
See accompanying Notes to Financial Statements.
June 30, 2024
36
Semi-Annual

Emerging Markets Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
 




Issuer
Principal Amount




Value
 
Repurchase Agreements
 
Fixed Income Clearing Corporation,
2.300% dated 06/28/24, due
07/01/24, repurchase price $2,525,
collateralized by U.S. Treasury
Inflation-Indexed Note, 0.125%,
due 04/15/27, valued at $2,575
$
2,525
$2,525
 
Total Repurchase
Agreements0.3%
(cost $2,525)
 
2,525
 
Total Investments100.8%
(cost $585,879)
 
822,957
 
Liabilities, plus cash and
other assets(0.8)%
 
(6,199
)
 
Net Assets100.0%
 
$816,758

 
ADR
American Depositary Deposit
REIT
Real Estate Investment Trust
 
*
Non-income producing security.
U.S. listed foreign security
As of June 30, 2024, the value of investments in securities and other financial instruments, segregated by their hierarchical input levels used in determining fair value and by security class or other financial instruments, are shown below (in thousands). 
Investments in securities
Level 1
Level 2
Level 3
Total
Common Stocks
$814,683
$5,749
$
$820,432
Repurchase Agreements
2,525
2,525
Total Investments in Securities
$814,683
$8,274
$
$822,957
See accompanying Notes to Financial Statements.
June 30, 2024
37
William Blair Funds

Emerging Markets ex China Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
 




Issuer
Shares




Value
 
Common Stocks
 
Emerging Asia—77.0%
 
 
India—34.4%
 
ABB India Ltd.
(Electrical Equipment)
 
4,109
$419
 
Apar Industries Ltd.
(Industrial Conglomerates)
 
1,559
159
 
Apollo Hospitals Enterprise Ltd.
(Health Care Providers & Services)
 
1,822
135
 
Bajaj Finance Ltd.
(Consumer Finance)
 
1,712
146
 
Bharat Electronics Ltd.
(Aerospace & Defense)
 
93,786
348
 
Bharti Airtel Ltd.
(Wireless Telecommunication Services)
 
14,078
245
 
Central Depository Services India Ltd.
(Capital Markets)
 
3,308
95
 
Cholamandalam Investment & Finance Co.
Ltd.
(Consumer Finance)
 
5,894
100
 
Computer Age Management Services Ltd.
(Professional Services)
 
2,037
88
 
Cummins India Ltd.
(Machinery)
 
6,514
309
 
Dixon Technologies India Ltd.
(Household Durables)
 
2,489
357
*
Ethos Ltd.
(Specialty Retail)
 
2,438
82
 
HDFC Asset Management Co. Ltd.
(Capital Markets)
 
2,508
120
 
HDFC Bank Ltd.
(Banks)
 
9,772
197
 
Hindustan Aeronautics Ltd.
(Aerospace & Defense)
 
4,798
303
 
Indian Hotels Co. Ltd.
(Hotels, Restaurants & Leisure)
 
34,477
258
*
InterGlobe Aviation Ltd.
(Airlines)
 
4,473
227
 
Jindal Stainless Ltd.
(Metals & Mining)
 
22,561
223
*
Kaynes Technology India Ltd.
(Electronic Equipment, Instruments &
Components)
 
4,752
220
 
KEI Industries Ltd.
(Electrical Equipment)
 
3,634
192
 
KPIT Technologies Ltd.
(Software)
 
6,772
133
 
Larsen & Toubro Ltd.
(Construction & Engineering)
 
4,675
199
 
Macrotech Developers Ltd.
(Real Estate Management &
Development)
 
11,701
210
 
Mahindra & Mahindra Ltd.
(Automobiles)
 
7,930
273
*
MakeMyTrip Ltd.
(Hotels, Restaurants & Leisure)
 
2,261
190
 
Max Healthcare Institute Ltd.
(Health Care Providers & Services)
 
15,042
170
 
Nestle India Ltd.
(Food Products)
 
2,524
77
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Emerging Asia—(continued)
 
 
India—(continued)
 
NTPC Ltd.
(Independent Power and Renewable
Electricity Producers)
 
65,119
$296
 
Oberoi Realty Ltd.
(Real Estate Management &
Development)
 
5,798
123
 
Phoenix Mills Ltd.
(Real Estate Management &
Development)
 
3,921
168
 
REC Ltd.
(Diversified Financial Services)
 
21,356
135
 
Reliance Industries Ltd.
(Oil, Gas & Consumable Fuels)
 
7,742
290
 
Sun Pharmaceutical Industries Ltd.
(Pharmaceuticals)
 
6,215
113
 
Tata Consultancy Services Ltd.
(IT Services)
 
4,513
211
 
Tata Motors Ltd.
(Automobiles)
 
17,873
212
 
Titagarh Rail System Ltd.
(Machinery)
 
10,237
228
 
Titan Co. Ltd.
(Textiles, Apparel & Luxury Goods)
 
2,933
120
 
Trent Ltd.
(Specialty Retail)
 
6,519
428
 
Triveni Turbine Ltd.
(Electrical Equipment)
 
15,687
117
 
UNO Minda Ltd.
(Auto Components)
 
10,232
134
 
Varun Beverages Ltd.
(Beverages)
 
17,457
341
 
Voltamp Transformers Ltd.
(Electrical Equipment)
 
884
118
*
Zomato Ltd.
(Hotels, Restaurants & Leisure)
 
79,537
191
 
 
 
8,700
 
Indonesia—3.0%
 
Bank Central Asia Tbk. PT
(Banks)
 
765,900
464
 
Bank Mandiri Persero Tbk. PT
(Banks)
 
314,900
118
 
Bank Rakyat Indonesia Persero Tbk. PT
(Banks)
 
300,600
85
 
Mitra Adiperkasa Tbk. PT
(Multiline Retail)
 
1,123,700
101
 
 
 
768
 
Malaysia—0.3%
 
YTL Power International Bhd.
(Multi-Utilities)
 
87,800
90
 
Philippines—1.4%
 
BDO Unibank, Inc.
(Banks)
 
65,108
143
 
International Container Terminal Services,
Inc.
(Transportation Infrastructure)
 
34,050
203
 
 
 
346
See accompanying Notes to Financial Statements.
June 30, 2024
38
Semi-Annual

Emerging Markets ex China Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Emerging Asia—(continued)
 
 
South Korea—10.8%
 
Hanwha Aerospace Co. Ltd.
(Aerospace & Defense)
 
1,176
$213
 
HD Hyundai Electric Co. Ltd.
(Electrical Equipment)
 
1,685
380
 
LEENO Industrial, Inc.
(Semiconductors & Semiconductor
Equipment)
 
596
102
 
Samsung Electronics Co. Ltd.
(Technology Hardware, Storage &
Peripherals)
 
18,319
1,085
 
SK Hynix, Inc.
(Semiconductors & Semiconductor
Equipment)
 
5,532
950
 
 
 
2,730
 
Taiwan—26.2%
 
Accton Technology Corp.
(Communications Equipment)
 
9,000
154
 
Alchip Technologies Ltd.
(Semiconductors & Semiconductor
Equipment)
 
2,500
189
 
Asia Vital Components Co. Ltd.
(Technology Hardware, Storage &
Peripherals)
 
9,000
212
 
ASMedia Technology, Inc.
(Semiconductors & Semiconductor
Equipment)
 
2,000
138
 
ASPEED Technology, Inc.
(Semiconductors & Semiconductor
Equipment)
 
1,100
164
 
Elite Material Co. Ltd.
(Electronic Equipment, Instruments &
Components)
 
11,000
161
*
eMemory Technology, Inc.
(Semiconductors & Semiconductor
Equipment)
 
2,300
182
 
Fortune Electric Co. Ltd.
(Electrical Equipment)
 
8,000
233
 
Fositek Corp.
(Electronic Equipment, Instruments &
Components)
 
5,000
117
 
Lotes Co. Ltd.
(Electronic Equipment, Instruments &
Components)
 
5,103
257
 
MediaTek, Inc.
(Semiconductors & Semiconductor
Equipment)
 
12,000
518
 
Taiwan Semiconductor Manufacturing Co.
Ltd.
(Semiconductors & Semiconductor
Equipment)
 
130,000
3,871
 
Tripod Technology Corp.
(Electronic Equipment, Instruments &
Components)
 
18,400
124
 
Wiwynn Corp.
(Technology Hardware, Storage &
Peripherals)
 
4,000
326
 
 
 
6,646
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Emerging Asia—(continued)
 
 
Thailand—0.9%
 
Bangkok Dusit Medical Services PCL
(Health Care Providers & Services)
 
117,100
$85
 
Bumrungrad Hospital PCL
(Health Care Providers & Services)
 
20,200
136
 
 
 
221
 
Emerging Europe, Mid-East,
Africa—11.5%
 
 
Greece—1.1%
*
Eurobank Ergasias Services & Holdings SA
(Banks)
 
77,716
168
*
Piraeus Financial Holdings SA
(Banks)
 
29,100
106
 
 
 
274
 
Kazakhstan—0.6%
 
Kaspi.KZ JSC—ADR
(Consumer Finance)
 
1,141
147
 
Poland—0.4%
 
Benefit Systems SA
(Professional Services)
 
152
110
 
Saudi Arabia—6.3%
 
Aldrees Petroleum & Transport Services Co.
(Oil, Gas & Consumable Fuels)
 
3,230
105
*
Arabian Contracting Services Co.
(Media)
 
1,849
112
 
Bupa Arabia for Cooperative Insurance Co.
(Insurance)
 
1,899
130
 
Dr Sulaiman Al Habib Medical Services
Group Co.
(Health Care Providers & Services)
 
2,182
168
 
Elm Co.
(IT Services)
 
664
152
 
Leejam Sports Co. JSC
(Hotels, Restaurants & Leisure)
 
3,195
193
 
National Co. for Learning & Education
(Diversified Consumer Services)
 
2,832
121
 
National Medical Care Co.
(Health Care Providers & Services)
 
2,131
123
 
Retal Urban Development Co.
(Real Estate Management &
Development)
 
39,597
118
 
Riyadh Cables Group Co.
(Electrical Equipment)
 
4,586
123
 
Saudia Dairy & Foodstuff Co.
(Food Products)
 
1,657
155
*
Savola Group
(Food Products)
 
7,300
91
 
 
 
1,591
 
South Africa—1.0%
 
Capitec Bank Holdings Ltd.
(Banks)
 
901
130
 
Clicks Group Ltd.
(Food & Staples Retailing)
 
6,639
126
 
 
 
256
 
Turkey—0.9%
 
BIM Birlesik Magazalar AS
(Food & Staples Retailing)
 
13,613
227
See accompanying Notes to Financial Statements.
June 30, 2024
39
William Blair Funds

Emerging Markets ex China Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Emerging Europe, Mid-East,
Africa—(continued)
 
 
United Arab Emirates—1.2%
 
Emaar Properties PJSC
(Real Estate Management &
Development)
 
73,428
$164
 
Salik Co. PJSC
(Transportation Infrastructure)
 
146,735
134
 
 
 
298
 
Emerging Latin America—10.3%
 
 
Brazil—6.4%
 
Banco BTG Pactual SA
(Capital Markets)
 
28,100
155
 
Caixa Seguridade Participacoes SA
(Insurance)
 
34,400
88
 
Cury Construtora e Incorporadora SA
(Household Durables)
 
32,500
120
 
Itau Unibanco Holding SA.—ADR
(Banks)
 
39,652
232
*
MercadoLibre, Inc.
(Multiline Retail)
 
387
636
*
NU Holdings Ltd.
(Banks)
 
14,915
192
 
Raia Drogasil SA
(Food & Staples Retailing)
 
20,916
96
 
WEG SA
(Electrical Equipment)
 
14,500
109
 
 
 
1,628
 
Mexico—3.9%
 
Alsea SAB de CV
(Hotels, Restaurants & Leisure)
 
39,600
138
*
BBB Foods, Inc.
(Food & Staples Retailing)
 
4,033
96
 
Corp. Inmobiliaria Vesta SAB de CV
(Real Estate Management &
Development)
 
68,900
207
 
Issuer
Shares or
Principal
Amount
Value
 
Common Stocks—(continued)
 
Emerging Latin America—(continued)
 
 
Mexico—(continued)
 
Fomento Economico Mexicano SAB de
CV—ADR
(Beverages)
 
1,532
$165
 
Grupo Financiero Banorte SAB de CV
(Banks)
 
15,800
123
 
Qualitas Controladora SAB de CV
(Insurance)
 
14,400
146
 
Wal-Mart de Mexico SAB de CV
(Food & Staples Retailing)
 
28,100
96
 
 
 
971
 
Total Common Stocks98.8%
(cost $18,007)
 
25,003
 
 




 
 




 
 
Repurchase Agreements
 
Fixed Income Clearing Corporation, 2.300%
dated 06/28/24, due 07/01/24, repurchase
price $559, collateralized by U.S. Treasury
Inflation-Indexed Note, 0.125%, due
04/15/27, valued at $570
$
559
559
 
Total Repurchase Agreements2.2%
(cost $559)
 
559
 
Total Investments101.0%
(cost $18,566)
 
25,562
 
Liabilities, plus cash and
other assets(1.0)%
 
(252
)
 
Net Assets100.0%
 
$25,310

 
ADR
American Depositary Deposit
 
*
Non-income producing security.
U.S. listed foreign security
As of June 30, 2024, the value of investments in securities and other financial instruments, segregated by their hierarchical input levels used in determining fair value and by security class or other financial instruments, are shown below (in thousands). 
Investments in securities
Level 1
Level 2
Level 3
Total
Common Stocks
$24,782
$221
$
$25,003
Repurchase Agreements
559
559
Total Investments in Securities
$24,782
$780
$
$25,562
See accompanying Notes to Financial Statements.
June 30, 2024
40
Semi-Annual

Emerging Markets Small Cap Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
 




Issuer
Shares




Value
 
Common Stocks
 
Emerging Asia—81.5%
 
 
China—13.2%
 
Anhui Heli Co. Ltd.
(Machinery)
 
1,000,541
$2,966
 
Beijing Roborock Technology Co. Ltd.
(Household Durables)
 
70,670
3,800
 
Eastroc Beverage Group Co. Ltd.
(Beverages)
 
151,652
4,482
 
Giant Biogene Holding Co. Ltd.
(Personal Products)
 
557,400
3,273
 
Henan Pinggao Electric Co. Ltd.
(Electrical Equipment)
 
2,143,816
5,712
 
Hexing Electrical Co. Ltd.
(Electronic Equipment, Instruments &
Components)
 
405,900
2,604
 
HLA Group Corp. Ltd.
(Specialty Retail)
 
4,790,071
6,063
 
Huaming Power Equipment Co. Ltd.
(Machinery)
 
2,129,850
6,488
 
Huaneng Lancang River Hydropower,
Inc.
(Independent Power and Renewable
Electricity Producers)
 
1,886,512
2,786
 
MINISO Group Holding Ltd.—ADR
(Multiline Retail)
 
21,304
406
 
Pop Mart International Group Ltd.
(Specialty Retail)
 
379,000
1,856
 
Proya Cosmetics Co. Ltd.
(Personal Products)
 
159,788
2,429
 
Shanghai BOCHU Electronic Technology
Corp. Ltd.
(Electronic Equipment, Instruments &
Components)
 
38,879
983
 
Sieyuan Electric Co. Ltd.
(Electrical Equipment)
 
297,000
2,722
 
Xuji Electric Co. Ltd.
(Electrical Equipment)
 
1,020,200
4,809
 
Yutong Bus Co. Ltd.
(Machinery)
 
686,000
2,424
 
 
 
53,803
 
India—43.6%
 
360 ONE WAM Ltd.
(Capital Markets)
 
206,828
2,443
 
ABB India Ltd.
(Electrical Equipment)
 
87,970
8,968
*
Amber Enterprises India Ltd.
(Household Durables)
 
14,135
764
 
Apar Industries Ltd.
(Industrial Conglomerates)
 
43,423
4,416
 
Astra Microwave Products Ltd.
(Communications Equipment)
 
176,858
2,015
 
Astral Ltd.
(Building Products)
 
115,940
3,323
*
Azad Engineering Ltd.
(Machinery)
 
95,955
2,195
*
Bharti Hexacom Ltd.
(Wireless Telecommunication Services)
 
170,166
2,304
 
Bikaji Foods International Ltd.
(Food Products)
 
332,051
2,847
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Emerging Asia—(continued)
 
 
India—(continued)
 
Blue Star Ltd.
(Building Products)
 
206,501
$4,049
 
CG Power & Industrial Solutions Ltd.
(Electrical Equipment)
 
651,008
5,495
*
Chalet Hotels Ltd.
(Hotels, Restaurants & Leisure)
 
183,540
1,761
 
Cholamandalam Investment & Finance
Co. Ltd.
(Consumer Finance)
 
24,406
415
*
Cyient DLM Ltd.
(Electronic Equipment, Instruments &
Components)
 
223,209
1,986
 
Data Patterns India Ltd.
(Aerospace & Defense)
 
81,871
2,945
 
Dixon Technologies India Ltd.
(Household Durables)
 
78,313
11,239
 
Escorts Kubota Ltd.
(Machinery)
 
56,855
2,831
*
Ethos Ltd.
(Specialty Retail)
 
49,452
1,672
*
GMR Airports Infrastructure Ltd.
(Transportation Infrastructure)
 
1,817,649
2,101
*
Godrej Properties Ltd.
(Real Estate Management &
Development)
 
178,004
6,827
 
JB Chemicals & Pharmaceuticals Ltd.
(Pharmaceuticals)
 
139,100
2,929
 
Jindal Stainless Ltd.
(Metals & Mining)
 
532,526
5,255
 
Kalyan Jewellers India Ltd.
(Textiles, Apparel & Luxury Goods)
 
263,749
1,591
 
Karur Vysya Bank Ltd.
(Banks)
 
962,814
2,390
*
Kaynes Technology India Ltd.
(Electronic Equipment, Instruments &
Components)
 
96,586
4,462
 
KEI Industries Ltd.
(Electrical Equipment)
 
211,981
11,213
 
KPIT Technologies Ltd.
(Software)
 
115,903
2,273
 
KSB Ltd.
(Machinery)
 
23,914
1,337
*
Lemon TreeHotels Ltd.
(Hotels, Restaurants & Leisure)
 
1,618,581
2,805
 
Linde India Ltd.
(Chemicals)
 
14,889
1,482
 
Macrotech Developers Ltd.
(Real Estate Management &
Development)
 
358,061
6,415
*
MakeMyTrip Ltd.
(Hotels, Restaurants & Leisure)
 
42,878
3,606
*
Mankind Pharma Ltd.
(Pharmaceuticals)
 
73,367
1,870
 
Max Healthcare Institute Ltd.
(Health Care Providers & Services)
 
209,340
2,369
 
Narayana Hrudayalaya Ltd.
(Health Care Providers & Services)
 
71,884
1,040
 
Newgen Software Technologies Ltd.
(Software)
 
158,121
1,844
See accompanying Notes to Financial Statements.
June 30, 2024
41
William Blair Funds

Emerging Markets Small Cap Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Emerging Asia—(continued)
 
 
India—(continued)
*
Nuvama Wealth Management Ltd.
(Capital Markets)
 
21,074
$1,248
 
Oberoi Realty Ltd.
(Real Estate Management &
Development)
 
101,095
2,140
*
PG Electroplast Ltd.
(Electronic Equipment, Instruments &
Components)
 
82,765
3,563
 
Phoenix Mills Ltd.
(Real Estate Management &
Development)
 
102,176
4,380
 
Prestige Estates Projects Ltd.
(Real Estate Management &
Development)
 
133,932
3,036
*
Rainbow Children's Medicare Ltd.
(Health Care Providers & Services)
 
73,718
1,108
 
Ramkrishna Forgings Ltd.
(Metals & Mining)
 
385,198
4,120
 
Schaeffler India Ltd.
(Machinery)
 
28,979
1,630
 
Shakti Pumps India Ltd.
(Machinery)
 
6,555
288
*
Solar Industries India Ltd.
(Chemicals)
 
21,059
2,516
*
Sterling & Wilson Renewable
(Construction & Engineering)
 
173,973
1,495
*
Tbo Tek Ltd.
(Hotels, Restaurants & Leisure)
 
64,585
1,483
 
Tega Industries Ltd.
(Machinery)
 
41,051
802
 
Titagarh Rail System Ltd.
(Machinery)
 
266,953
5,945
 
Transformers & Rectifiers India Ltd.
(Electrical Equipment)
 
315,679
2,760
 
Triveni Turbine Ltd.
(Electrical Equipment)
 
473,629
3,521
 
UNO Minda Ltd.
(Auto Components)
 
189,602
2,483
 
Varun Beverages Ltd.
(Beverages)
 
282,142
5,505
 
Venus Pipes & Tubes Ltd.
(Metals & Mining)
 
118,711
2,920
 
Voltamp Transformers Ltd.
(Electrical Equipment)
 
28,146
3,745
 
 
 
178,165
 
Indonesia—1.7%
 
Bank Syariah Indonesia Tbk. PT
(Banks)
 
26,354,900
4,217
 
Map Aktif Adiperkasa PT
(Specialty Retail)
 
20,766,200
989
 
Mitra Adiperkasa Tbk. PT
(Multiline Retail)
 
17,209,700
1,550
 
 
 
6,756
 
Malaysia—3.1%
 
Frontken Corp. Bhd.
(Commercial Services & Supplies)
 
1,656,400
1,566
 
Gamuda Bhd.
(Construction & Engineering)
 
2,460,500
3,432
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Emerging Asia—(continued)
 
 
Malaysia—(continued)
 
Tenaga Nasional Bhd.
(Electric Utilities)
 
667,100
$1,948
 
YTL Power International Bhd.
(Multi-Utilities)
 
5,555,000
5,676
 
 
 
12,622
 
Philippines—0.9%
 
International Container Terminal Services,
Inc.
(Transportation Infrastructure)
 
599,480
3,578
 
South Korea—4.1%
 
Classys, Inc.
(Health Care Equipment & Supplies)
 
53,650
1,980
 
Cosmax, Inc.
(Personal Products)
 
41,071
5,806
 
Hanwha Aerospace Co. Ltd.
(Aerospace & Defense)
 
6,817
1,236
 
HD Hyundai Electric Co. Ltd.
(Electrical Equipment)
 
13,946
3,141
 
HPSP Co. Ltd.
(Semiconductors & Semiconductor
Equipment)
 
14,468
411
 
LEENO Industrial, Inc.
(Semiconductors & Semiconductor
Equipment)
 
24,749
4,225
 
 
 
16,799
 
Taiwan—14.3%
 
Asia Vital Components Co. Ltd.
(Technology Hardware, Storage &
Peripherals)
 
311,000
7,334
 
ASMedia Technology, Inc.
(Semiconductors & Semiconductor
Equipment)
 
78,000
5,386
 
ASPEED Technology, Inc.
(Semiconductors & Semiconductor
Equipment)
 
54,000
8,057
 
AURAS Technology Co. Ltd.
(Technology Hardware, Storage &
Peripherals)
 
89,000
2,214
 
Elite Material Co. Ltd.
(Electronic Equipment, Instruments &
Components)
 
216,000
3,163
 
Fortune Electric Co. Ltd.
(Electrical Equipment)
 
149,000
4,340
 
Fositek Corp.
(Electronic Equipment, Instruments &
Components)
 
10,000
234
 
Jentech Precision Industrial Co. Ltd.
(Semiconductors & Semiconductor
Equipment)
 
93,000
3,440
 
Kaori Heat Treatment Co. Ltd.
(Machinery)
 
181,000
2,689
 
Kinik Co.
(Machinery)
 
264,000
2,669
 
Lotes Co. Ltd.
(Electronic Equipment, Instruments &
Components)
 
154,669
7,771
See accompanying Notes to Financial Statements.
June 30, 2024
42
Semi-Annual

Emerging Markets Small Cap Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Emerging Asia—(continued)
 
 
Taiwan—(continued)
 
Tripod Technology Corp.
(Electronic Equipment, Instruments &
Components)
 
301,000
$2,027
 
Voltronic Power Technology Corp.
(Electrical Equipment)
 
9,507
564
 
Wiwynn Corp.
(Technology Hardware, Storage &
Peripherals)
 
104,000
8,479
 
 
 
58,367
 
Thailand—0.3%
 
Ichitan Group PCL
(Food Products)
 
2,845,100
1,349
 
Vietnam—0.3%
*
Hoa Phat Group JSC
(Metals & Mining)
 
1,164,470
1,295
 
Emerging Europe, Mid-East,
Africa—11.0%
 
 
Greece—0.6%
 
JUMBO SA
(Specialty Retail)
 
85,169
2,452
 
Kazakhstan—1.1%
 
Kaspi.KZ JSC—ADR
(Consumer Finance)
 
34,833
4,494
 
Lithuania—0.6%
 
Baltic Classifieds Group PLC
(Interactive Media & Services)
 
750,628
2,277
 
Poland—1.6%
 
Alior Bank SA
(Banks)
 
136,589
3,473
 
Benefit Systems SA
(Professional Services)
 
4,268
3,074
 
 
 
6,547
 
Saudi Arabia—6.2%
*
AlKhorayef Water & Power Technologies
Co.
(Water Utilities)
 
38,331
1,980
 
Bupa Arabia for Cooperative Insurance
Co.
(Insurance)
 
34,263
2,347
 
East Pipes Integrated Co. for Industry
(Metals & Mining)
 
52,203
2,265
 
Leejam Sports Co. JSC
(Hotels, Restaurants & Leisure)
 
64,008
3,866
*
National Agriculture Development Co.
(Food Products)
 
208,163
1,767
 
National Co. for Learning & Education
(Diversified Consumer Services)
 
36,332
1,548
 
National Medical Care Co.
(Health Care Providers & Services)
 
50,572
2,928
 
Riyadh Cables Group Co.
(Electrical Equipment)
 
171,298
4,603
 
Saudia Dairy & Foodstuff Co.
(Food Products)
 
40,891
3,819
 
 
 
25,123
 
South Africa—0.3%
 
Truworths International Ltd.
(Specialty Retail)
 
278,378
1,427
 
Issuer
Shares or
Principal
Amount
Value
 
Common Stocks—(continued)
 
Emerging Europe, Mid-East,
Africa—(continued)
 
 
United Arab Emirates—0.6%
 
Salik Co. PJSC
(Transportation Infrastructure)
 
2,832,441
$2,591
 
Emerging Latin America—8.3%
 
 
Argentina—0.8%
*
Grupo Financiero Galicia SA—ADR
(Banks)
 
103,192
3,154
 
Brazil—2.8%
 
Cury Construtora e Incorporadora SA
(Household Durables)
 
1,295,400
4,774
 
Direcional Engenharia SA
(Household Durables)
 
659,700
3,138
 
Inter & Co., Inc.
(Banks)
 
443,971
2,708
 
Smartfit Escola de Ginastica e Danca SA
(Hotels, Restaurants & Leisure)
 
254,400
983
 
 
 
11,603
 
Mexico—4.7%
 
Alsea SAB de CV
(Hotels, Restaurants & Leisure)
 
777,500
2,703
*
BBB Foods, Inc.
(Food & Staples Retailing)
 
209,418
4,997
 
Corp. Inmobiliaria Vesta SAB de CV
(Real Estate Management &
Development)
 
954,300
2,860
 
Gentera SAB de CV
(Consumer Finance)
 
317,300
393
 
Prologis Property Mexico SA de CV
REIT
(Industrial REITs)
 
609,223
1,986
 
Qualitas Controladora SAB de CV
(Insurance)
 
195,100
1,983
*
Vista Energy SAB de CV—ADR
(Oil, Gas & Consumable Fuels)
 
90,495
4,116
 
 
 
19,038
 
Total Common Stocks100.8%
(cost $316,245)
 
411,440
 
 




 
 




 
 
Repurchase Agreements
 
Fixed Income Clearing Corporation,
2.300% dated 06/28/24, due 07/01/24,
repurchase price $4,202, collateralized
by U.S. Treasury Inflation-Indexed Note,
0.125%, due 04/15/27, valued at $4,286
$
4,202
4,202
 
Total Repurchase Agreements1.0%
(cost $4,202)
 
4,202
 
Total Investments101.8%
(cost $320,447)
 
415,642
 
Liabilities, plus cash and
other assets(1.8)%
 
(7,216
)
 
Net Assets100.0%
 
$408,426

 
ADR
American Depositary Deposit
PLC
Public Limited Company
REIT
Real Estate Investment Trust
 
*
Non-income producing security.
U.S. listed foreign security
See accompanying Notes to Financial Statements.
June 30, 2024
43
William Blair Funds

Emerging Markets Small Cap Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
As of June 30, 2024, the value of investments in securities and other financial instruments, segregated by their hierarchical input levels used in determining fair value and by security class or other financial instruments, are shown below (in thousands). 
Investments in securities
Level 1
Level 2
Level 3
Total
Common Stocks
$410,091
$1,349
$
$411,440
Repurchase Agreements
4,202
4,202
Total Investments in Securities
$410,091
$5,551
$
$415,642
See accompanying Notes to Financial Statements.
June 30, 2024
44
Semi-Annual

China Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
 




Issuer
Shares




Value
 
Common Stocks
 
Emerging Asia—97.7%
 
 
China—97.7%
 
Agricultural Bank of China Ltd.
(Banks)
 
43,500
$26
 
Aier Eye Hospital Group Co. Ltd.
(Health Care Providers & Services)
 
10,548
15
 
Airtac International Group
(Machinery)
 
1,500
46
 
Alibaba Group Holding Ltd.
(Multiline Retail)
 
3,900
35
 
Bank of Chengdu Co. Ltd.
(Banks)
 
11,400
24
 
Bank of Ningbo Co. Ltd.
(Banks)
 
6,790
21
 
Beijing Kingsoft Office Software, Inc.
(Software)
 
345
11
 
Beijing Roborock Technology Co. Ltd.
(Household Durables)
 
564
30
 
China Merchants Bank Co. Ltd.
(Banks)
 
8,000
36
 
Contemporary Amperex Technology Co. Ltd.
(Electrical Equipment)
 
2,140
53
 
Dong-E-E-Jiao Co. Ltd.
(Pharmaceuticals)
 
2,400
21
 
Eastroc Beverage Group Co. Ltd.
(Beverages)
 
1,000
30
 
Fuyao Glass Industry Group Co. Ltd.
(Auto Components)
 
8,000
46
 
Giant Biogene Holding Co. Ltd.
(Personal Products)
 
5,000
29
 
Henan Pinggao Electric Co. Ltd.
(Electrical Equipment)
 
8,000
21
 
Hisense Home Appliances Group Co. Ltd.
(Household Durables)
 
14,000
46
 
HLA Group Corp. Ltd.
(Specialty Retail)
 
10,500
13
 
Huaming Power Equipment Co. Ltd.
(Machinery)
 
15,300
47
 
Huaneng Lancang River Hydropower, Inc.
(Independent Power and Renewable
Electricity Producers)
 
55,700
82
 
Inner Mongolia Yili Industrial Group Co. Ltd.
(Food Products)
 
3,700
13
 
Jiangsu Hengli Hydraulic Co. Ltd.
(Machinery)
 
1,700
11
*
Kuaishou Technology
(Interactive Media & Services)
 
2,200
13
 
Kweichow Moutai Co. Ltd.
(Beverages)
 
460
92
 
Maxscend Microelectronics Co. Ltd.
(Electronic Equipment, Instruments &
Components)
 
1,200
13
*
Meituan
(Hotels, Restaurants & Leisure)
 
3,110
44
 
Midea Group Co. Ltd.
(Household Durables)
 
3,700
33
 
MINISO Group Holding Ltd.
(Multiline Retail)
 
3,000
14
 
Issuer
Shares
Value
 
Common Stocks—(continued)
 
Emerging Asia—(continued)
 
 
China—(continued)
 
NAURA Technology Group Co. Ltd.
(Semiconductors & Semiconductor
Equipment)
 
1,700
$75
 
NetEase, Inc.
(Entertainment)
 
6,000
115
*
PDD Holdings, Inc.—ADR
(Multiline Retail)
 
655
87
 
Proya Cosmetics Co. Ltd.
(Personal Products)
 
1,588
24
 
Shanghai BOCHU Electronic Technology Corp.
Ltd.
(Electronic Equipment, Instruments &
Components)
 
758
19
 
Shenzhen Inovance Technology Co. Ltd.
(Machinery)
 
2,700
19
 
Shenzhen Mindray Bio-Medical Electronics Co.
Ltd.
(Health Care Equipment & Supplies)
 
600
24
 
Sieyuan Electric Co. Ltd.
(Electrical Equipment)
 
1,900
17
 
Tencent Holdings Ltd.
(Interactive Media & Services)
 
4,300
205
*
Trip.com Group Ltd.
(Hotels, Restaurants & Leisure)
 
650
31
 
Weichai Power Co. Ltd.
(Machinery)
 
30,000
57
 
Will Semiconductor Co. Ltd. Shanghai
(Semiconductors & Semiconductor
Equipment)
 
1,600
22
*
Wuliangye Yibin Co. Ltd.
(Beverages)
 
2,000
35
 
WUS Printed Circuit Kunshan Co. Ltd.
(Electronic Equipment, Instruments &
Components)
 
6,500
33
 
Yutong Bus Co. Ltd.
(Machinery)
 
13,200
47
 
Zhangzhou Pientzehuang Pharmaceutical Co.
Ltd.
(Pharmaceuticals)
 
600
17
 
Zhejiang Dingli Machinery Co. Ltd.
(Machinery)
 
2,100
17
 
Zhejiang Jingsheng Mechanical & Electrical Co.
Ltd.
(Semiconductors & Semiconductor
Equipment)
 
4,100
16
 
Zhongji Innolight Co. Ltd.
(Communications Equipment)
 
2,520
48
 
 
 
1,773
 
Total Investments97.7%
(cost $1,750)
 
1,773
 
Cash and other assets,
less liabilities2.3%
 
42
 
Net Assets100.0%
 
$1,815

 
ADR
American Depositary Deposit
 
*
Non-income producing security.
See accompanying Notes to Financial Statements.
June 30, 2024
45
William Blair Funds

China Growth Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
As of June 30, 2024, the value of investments in securities and other financial instruments, segregated by their hierarchical input levels used in determining fair value and by security class or other financial instruments, are shown below (in thousands). 
Investments in securities
Level 1
Level 2
Level 3
Total
Common Stocks
$1,773
$
$
$1,773
See accompanying Notes to Financial Statements.
June 30, 2024
46
Semi-Annual

Emerging Markets Debt Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
 
Issuer
Principal
Amount
Value
 
Foreign Government Bonds—60.3%
 
Angola—1.3%
 
Angolan Government International Bond,
 
 
8.750%, due 4/14/32
$
200
$177
 
9.125%, due 11/26/49
 
400
328
 
9.500%, due 11/12/25
 
200
203
 
 
 
708
 
Argentina—2.3%
 
Argentine Government International
Bond,
 
 
0.000%, due 12/15/35(a)
EUR
1,000
67
 
0.750%, due 7/9/30(a)
$
920
516
 
1.000%, due 7/9/29
 
150
86
 
3.625%, due 7/9/46(a)
 
745
325
 
3.750%, due 1/9/38(a)
EUR
320
144
 
4.250%, due 1/9/38(a)
$
240
110
 
 
 
1,248
 
Bahamas—0.3%
 
Bahamas Government International Bond,
6.000%, due 11/21/28
 
200
175
 
Bahrain—1.5%
 
Bahrain Government International Bond,
 
 
5.250%, due 1/25/33
 
400
357
 
6.250%, due 1/25/51
 
300
248
 
7.000%, due 1/26/26
 
200
202
 
 
 
807
 
Barbados—0.3%
 
Barbados Government International Bond,
6.500%, due 10/1/29
 
200
189
 
Benin—0.4%
 
Benin Government International Bond,
6.875%, due 1/19/52
EUR
250
211
 
Bermuda—0.6%
 
Bermuda Government International Bond,
3.375%, due 8/20/50
$
460
313
 
Bolivia—0.2%
 
Bolivia Government International Bond,
7.500%, due 3/2/30
 
200
114
 
Brazil—1.1%
 
Brazil Government International Bond,
4.750%, due 1/14/50
 
280
200
 
Brazil Letras do Tesouro Nacional,
0.000%, due 1/1/30
BRL
1,000
94
 
Brazil Notas do Tesouro Nacional Serie F,
 
 
10.000%, due 1/1/31
 
500
80
 
10.000%, due 1/1/33
 
1,610
254
 
 
 
628
 
Chile—0.5%
 
Chile Government International Bond,
3.250%, due 9/21/71
$
400
248
 
Colombia—2.0%
 
Colombia Government International Bond,
 
 
3.250%, due 4/22/32
 
80
61
 
4.125%, due 2/22/42
 
330
216
 
Issuer
Principal
Amount
Value
 
Foreign Government Bonds—(continued)
 
Colombia—(continued)
 
4.125%, due 5/15/51
$
500
$300
 
4.500%, due 3/15/29
 
550
501
 
 
 
1,078
 
Dominican Republic—2.0%
 
Dominican Republic International Bond,
 
 
4.875%, due 9/23/32
 
430
386
 
5.875%, due 1/30/60
 
310
264
 
10.750%, due 6/1/36(b)
DOP
10,000
168
 
11.250%, due 9/15/35(b)
 
8,000
141
 
11.250%, due 9/15/35
 
8,000
141
 
 
 
1,100
 
Ecuador—1.4%
 
Ecuador Government International Bond,
 
 
0.010%, due 7/31/30
$
270
129
 
2.500%, due 7/31/40(a)
 
1,010
457
 
3.500%, due 7/31/35(a)
 
340
170
 
 
 
756
 
Egypt—2.2%
 
Egypt Government International Bond,
 
 
7.300%, due 9/30/33(b)
 
250
197
 
7.500%, due 2/16/61
 
650
434
 
8.150%, due 11/20/59
 
200
142
 
8.875%, due 5/29/50
 
150
114
 
Egypt Treasury Bill,
15.513%, due 10/1/24
EGP
16,000
313
 
 
 
1,200
 
El Salvador—0.8%
 
El Salvador Government International
Bond,
 
 
0.250%, due 4/17/30(b)
$
200
6
 
7.625%, due 2/1/41
 
400
269
 
9.250%, due 4/17/30(b)
 
200
176
 
 
 
451
 
Gabon—0.3%
 
Gabon Government International Bond,
7.000%, due 11/24/31
 
250
189
 
Ghana—1.4%
 
Ghana Government International Bond,
 
 
0.000%, due 4/7/25(c)
 
350
149
 
7.750%, due 4/7/29(c)
 
500
254
 
8.625%, due 4/7/34(c)
 
400
204
 
8.950%, due 3/26/51(c)
 
375
191
 
 
 
798
 
Guatemala—0.4%
 
Guatemala Government Bond,
3.700%, due 10/7/33
 
295
240
 
Honduras—0.3%
 
Honduras Government International Bond,
5.625%, due 6/24/30
 
200
170
 
Hungary—1.4%
 
Hungary Government International Bond,
 
 
3.125%, due 9/21/51
 
600
381
See accompanying Notes to Financial Statements.
June 30, 2024
47
William Blair Funds

Emerging Markets Debt Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Principal
Amount
Value
 
Foreign Government Bonds—(continued)
 
Hungary—(continued)
 
6.125%, due 5/22/28
$
200
$204
 
6.750%, due 9/25/52(b)
 
200
214
 
 
 
799
 
Iraq—0.2%
 
Iraq International Bond,
5.800%, due 1/15/28
 
125
117
 
Ivory Coast—1.2%
 
Ivory Coast Government International
Bond,
 
 
6.625%, due 3/22/48
EUR
400
332
 
6.875%, due 10/17/40
 
400
358
 
 
 
690
 
Jamaica—0.7%
 
Jamaica Government International Bond,
9.625%, due 11/3/30
JMD
55,000
371
 
Lebanon—0.4%
 
Lebanon Government International Bond,
 
 
5.800%, due 4/14/20(c)
$
798
54
 
6.600%, due 11/27/26(c)
 
800
54
 
6.650%, due 4/22/24(c)
 
268
18
 
6.750%, due 11/29/27(c)
 
526
36
 
6.850%, due 3/23/27(c)
 
600
40
 
8.200%, due 5/17/33(c)
 
600
40
 
 
 
242
 
Mexico—1.8%
 
Mexico Bonos,
 
 
7.500%, due 5/26/33
MXN
5,000
235
 
7.750%, due 11/13/42
 
3,250
144
 
Mexico Government International Bond,
 
 
5.750%, due 10/12/10
$
270
223
 
6.350%, due 2/9/35
 
400
402
 
 
 
1,004
 
Mongolia—0.7%
 
Mongolia Government International Bond,
 
 
3.500%, due 7/7/27
 
200
180
 
5.125%, due 4/7/26
 
200
194
 
 
 
374
 
Morocco—0.2%
 
Morocco Government International Bond,
4.000%, due 12/15/50
 
200
137
 
Nigeria—1.2%
 
Nigeria Government Bond,
19.890%, due 5/15/33
NGN
210,000
130
 
Nigeria Government International Bond,
8.250%, due 9/28/51
$
500
384
 
Nigeria OMO Bill,
15.990%, due 2/25/25
NGN
250,000
142
 
 
 
656
 
Oman—2.2%
 
Oman Government International Bond,
 
 
4.750%, due 6/15/26
$
600
588
 
5.625%, due 1/17/28
 
400
399
 
6.750%, due 1/17/48
 
200
204
 
 
 
1,191
 
Issuer
Principal
Amount
Value
 
Foreign Government Bonds—(continued)
 
Pakistan—1.3%
 
Pakistan Government International Bond,
 
 
8.250%, due 9/30/25
$
250
$237
 
8.875%, due 4/8/51
 
300
225
 
Pakistan Treasury Bill,
16.558%, due 8/22/24
PKR
76,000
265
 
 
 
727
 
Panama—2.3%
 
Panama Government International Bond,
 
 
3.870%, due 7/23/60
$
710
405
 
3.875%, due 3/17/28
 
250
231
 
4.500%, due 5/15/47
 
200
138
 
4.500%, due 4/1/56
 
200
130
 
4.500%, due 1/19/63
 
600
383
 
 
 
1,287
 
Paraguay—2.2%
 
Paraguay Government International Bond,
 
 
2.739%, due 1/29/33
 
1,220
982
 
3.849%, due 6/28/33
 
300
259
 
 
 
1,241
 
Peru—0.9%
 
Peruvian Government International Bond,
 
 
2.783%, due 1/23/31
 
200
171
 
3.230%, due 12/31/99
 
230
130
 
3.600%, due 1/15/72
 
300
193
 
 
 
494
 
Philippines—1.5%
 
Philippines Government International
Bond,
 
 
3.700%, due 2/2/42
 
700
565
 
6.250%, due 1/14/36
PHP
15,000
241
 
 
 
806
 
Poland—1.1%
 
Poland Government International Bond,
5.500%, due 4/4/53
$
600
587
 
Qatar—2.5%
 
Qatar Government International Bond,
4.400%, due 4/16/50
 
1,600
1,403
 
Romania—2.3%
 
Romania Government International Bond,
 
 
2.875%, due 4/13/42
EUR
100
69
 
5.250%, due 11/25/27
$
600
589
 
5.625%, due 2/22/36(b)
EUR
200
209
 
5.625%, due 5/30/37(b)
 
200
207
 
7.625%, due 1/17/53(b)
$
200
216
 
 
 
1,290
 
Saudi Arabia—1.7%
 
Saudi Government International Bond,
 
 
3.450%, due 2/2/61
 
800
522
 
5.750%, due 1/16/54(b)
 
400
390
 
 
 
912
See accompanying Notes to Financial Statements.
June 30, 2024
48
Semi-Annual

Emerging Markets Debt Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Principal
Amount
Value
 
Foreign Government Bonds—(continued)
 
Senegal—1.4%
 
Senegal Government International Bond,
 
 
4.750%, due 3/13/28
EUR
400
$396
 
5.375%, due 6/8/37
 
500
388
 
 
 
784
 
Serbia—0.3%
 
Serbia International Bond,
2.050%, due 9/23/36
 
200
152
 
South Africa—2.2%
 
South Africa Government International
Bond,
 
 
5.750%, due 9/30/49
$
800
602
 
5.875%, due 9/16/25
 
600
597
 
 
 
1,199
 
Sri Lanka—1.2%
 
Sri Lanka Government International
Bond,
 
 
5.750%, due 4/18/23(c)
 
200
113
 
6.350%, due 6/28/24(c)
 
100
57
 
6.850%, due 11/3/25(c)
 
400
236
 
7.550%, due 3/28/30(c)
 
200
114
 
7.850%, due 3/14/29(c)
 
200
118
 
 
 
638
 
Suriname—0.6%
 
Suriname Government International Bond,
7.950%, due 7/15/33(b)
 
352
328
 
Trinidad and Tobago—0.7%
 
Trinidad and Tobago Government
International Bond,
 
 
5.950%, due 1/14/31(b)
 
200
197
 
6.400%, due 6/26/34(b)
 
200
199
 
 
 
396
 
Tunisia—0.7%
 
Tunisian Republic,
 
 
5.750%, due 1/30/25
 
200
190
 
6.375%, due 7/15/26
EUR
200
185
 
 
 
375
 
Turkey—2.6%
 
Turkiye Government Bond,
0.000%, due 4/9/25
TRY
12,000
269
 
Turkiye Government International Bond,
 
 
4.875%, due 10/9/26
$
200
193
 
4.875%, due 4/16/43
 
200
142
 
5.875%, due 5/21/30
EUR
200
214
 
7.625%, due 5/15/34
$
200
201
 
9.375%, due 3/14/29
 
400
435
 
 
 
1,454
 
Ukraine—1.5%
 
Ukraine Government International Bond,
 
 
6.876%, due 5/21/31(c)
 
300
86
 
7.253%, due 3/15/35(c)
 
500
142
 
7.375%, due 9/25/34(c)
 
600
171
 
7.750%, due 9/1/26(c)
 
350
108
 
7.750%, due 8/1/41(a),(c)
 
480
234
 
9.750%, due 11/1/30(c)
 
200
63
 
 
 
804
 
Issuer
Principal
Amount
Value
 
Foreign Government Bonds—(continued)
 
United Arab Emirates—1.0%
 
Abu Dhabi Government International
Bond,
3.000%, due 9/15/51
$
850
$571
 
Uruguay—0.9%
 
Uruguay Government International Bond,
9.750%, due 7/20/33
UYU
18,788
475
 
Uzbekistan—1.1%
 
Republic of Uzbekistan International
Bond,
 
 
5.375%, due 5/29/27(b)
EUR
200
214
 
6.900%, due 2/28/32(b)
$
400
389
 
 
 
603
 
Venezuela—0.4%
 
Venezuela Government International
Bond,
 
 
8.250%, due 10/13/24(c)
 
90
14
 
9.250%, due 5/7/28(c)
 
500
82
 
11.950%, due 8/5/31(c)
 
800
146
 
 
 
242
 
Zambia—0.6%
 
Zambia Government International Bond,
 
 
0.500%, due 12/31/53
 
288
141
 
5.750%, due 6/30/33(a)
 
241
212
 
 
 
353
 
Total Foreign Government
Bonds60.3%
(cost $33,282)
 
33,325
 
Foreign Corporate Bonds—34.0%
 
Brazil—3.0%
 
Aegea Finance SARL,
9.000%, due 1/20/31(b)
 
200
207
 
Ambipar Lux SARL,
9.875%, due 2/6/31(b)
 
200
193
 
Brazil Minas SPE via State of Minas
Gerais,
5.333%, due 2/15/28
 
276
272
 
ERO Copper Corp.,
6.500%, due 2/15/30
 
200
193
 
Karoon USA Finance, Inc.,
10.500%, due 5/14/29(b)
 
200
201
 
Movida Europe SA,
7.850%, due 4/11/29(b)
 
200
187
 
Petrorio Luxembourg Trading SARL,
6.125%, due 6/9/26
 
200
196
 
Trident Energy Finance PLC,
12.500%, due 11/30/29(b)
 
200
206
 
 
 
1,655
 
Chile—2.4%
 
Cencosud SA,
5.950%, due 5/28/31(b)
 
200
201
 
Corp. Nacional del Cobre de Chile,
 
 
3.700%, due 1/30/50
 
200
136
 
3.750%, due 1/15/31
 
400
357
 
6.300%, due 9/8/53(b)
 
200
197
See accompanying Notes to Financial Statements.
June 30, 2024
49
William Blair Funds

Emerging Markets Debt Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Principal
Amount
Value
 
Foreign Corporate Bonds—(continued)
 
Chile—(continued)
 
6.440%, due 1/26/36(b)
$
200
$206
 
Latam Airlines Group SA,
13.375%, due 10/15/27
 
200
222
 
 
 
1,319
 
China—1.8%
 
China Evergrande Group,
9.500%, due 3/29/24(c)
 
300
4
 
Huarong Finance II Co. Ltd.,
4.625%, due 6/3/26
 
200
192
 
Prosus NV,
3.257%, due 1/19/27
 
200
187
 
Sinochem Offshore Capital Co. Ltd.,
2.375%, due 9/23/31
 
500
412
 
Standard Chartered PLC,
5 year CMT + 3.135%, 4.300%, due
12/31/99(d),(e)
 
200
167
 
Yuzhou Group Holdings Co. Ltd.,
7.850%, due 8/12/26(c)
 
200
11
 
 
 
973
 
Colombia—1.3%
 
Banco Davivienda SA,
10 year CMT + 5.097%, 6.650%, due
4/22/31(d),(e)
 
200
145
 
Corp. Andina de Fomento,
6.770%, due 5/24/28
COP
2,000,000
416
 
Frontera Energy Corp.,
7.875%, due 6/21/28
$
220
172
 
 
 
733
 
Costa Rica—0.8%
 
Instituto Costarricense de Electricidad,
6.375%, due 5/15/43
 
250
221
 
Liberty Costa Rica Senior Secured
Finance,
10.875%, due 1/15/31
 
200
212
 
 
 
433
 
Czech Republic—0.4%
 
Energo-Pro AS,
8.500%, due 2/4/27
 
200
200
 
Georgia—0.3%
 
Bank of Georgia JSC,
5 year USD SOFR ICE Swap Rate +
5.618%, 9.500%, due 7/16/29(b),(d),(e)
 
200
195
 
Guatemala—0.3%
 
Energuate Trust,
5.875%, due 5/3/27
 
200
193
 
Hungary—0.4%
 
Magyar Export-Import Bank Zrt,
6.125%, due 12/4/27
 
200
201
 
India—2.9%
 
Adani Ports & Special Economic Zone
Ltd.,
3.828%, due 2/2/32
 
200
162
 
Continuum Energy Levanter Pte. Ltd.,
4.500%, due 2/9/27
 
170
169
 
Continuum Green Energy India
Pvt/Co-Issuers,
7.500%, due 6/26/33(b)
 
200
198
 
Issuer
Principal
Amount
Value
 
Foreign Corporate Bonds—(continued)
 
India—(continued)
 
European Bank for Reconstruction &
Development,
6.300%, due 10/26/27
INR
20,000
$235
 
Indiabulls Housing Finance Ltd.,
9.700%, due 7/3/27(b)
$
200
196
 
International Bank for Reconstruction &
Development,
6.850%, due 4/24/28
INR
20,000
238
 
Network i2i Ltd.,
5 year CMT + 4.274%, 5.650%, due
12/31/99(d),(e)
$
200
198
 
Shriram Finance Ltd.,
6.625%, due 4/22/27(b)
 
200
200
 
 
 
1,596
 
Indonesia—2.5%
 
Bank Negara Indonesia Persero Tbk. PT,
3.750%, due 3/30/26
 
200
191
 
Medco Maple TreePte. Ltd.,
8.960%, due 4/27/29(b)
 
250
261
 
Pertamina Persero PT,
 
 
2.300%, due 2/9/31
 
200
166
 
3.100%, due 8/27/30
 
400
353
 
6.000%, due 5/3/42
 
200
201
 
Perusahaan Penerbit SBSN Indonesia III,
4.700%, due 6/6/32(b)
 
200
193
 
 
 
1,365
 
Kazakhstan—0.7%
 
Development Bank of Kazakhstan JSC,
5.500%, due 4/15/27(b)
 
200
199
 
KazMunayGas National Co. JSC,
3.500%, due 4/14/33
 
200
164
 
 
 
363
 
Macao—0.3%
 
Melco Resorts Finance Ltd.,
5.625%, due 7/17/27
 
200
190
 
Malaysia—1.9%
 
Dua Capital Ltd.,
2.780%, due 5/11/31
 
550
468
 
Petronas Capital Ltd.,
 
 
4.550%, due 4/21/50
 
200
171
 
4.800%, due 4/21/60
 
450
392
 
 
 
1,031
 
Mexico—4.1%
 
Banco Mercantil del Norte SA,
5 year CMT + 4.643%, 5.875%, due
1/24/27(d),(e)
 
200
187
 
Credito Real SAB de CV SOFOM ER,
5.000%, due 2/1/27(c)
EUR
200
19
 
Grupo Axo SAPI de CV,
5.750%, due 6/8/26
$
200
202
 
Orbia Advance Corp. SAB de CV,
1.875%, due 5/11/26
 
200
186
 
Petroleos Mexicanos,
 
 
5.950%, due 1/28/31
 
740
595
 
6.490%, due 1/23/27
 
200
192
 
6.750%, due 9/21/47
 
808
532
See accompanying Notes to Financial Statements.
June 30, 2024
50
Semi-Annual

Emerging Markets Debt Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
 
Issuer
Principal
Amount
Value
 
Foreign Corporate Bonds—(continued)
 
Mexico—(continued)
 
6.875%, due 8/4/26
$
140
$137
 
6.950%, due 1/28/60
 
350
230
 
 
 
2,280
 
Mongolia—0.3%
 
Golomt Bank,
11.000%, due 5/20/27(b)
 
200
197
 
Nigeria—0.3%
 
SEPLAT Energy PLC,
7.750%, due 4/1/26
 
200
196
 
Peru—1.1%
 
Banco de Credito del Peru SA,
7.850%, due 1/11/29(b)
PEN
800
214
 
Corp. Financiera de Desarrollo SA,
2.400%, due 9/28/27
$
420
378
 
 
 
592
 
Poland—0.4%
 
Bank Polska Kasa Opieki SA,
3 mo. EURIBOR + 2.400%, 5.500%,
due 11/23/27(d)
EUR
200
218
 
Saudi Arabia—1.1%
 
Gaci First Investment Co.,
5.125%, due 2/14/53
$
700
607
 
Supranational—0.9%
 
Gabon Blue Bond Master Trust,
6.097%, due 8/1/38(b)
 
500
491
 
Trinidad and Tobago—0.7%
 
Heritage Petroleum Co. Ltd.,
 
 
9.000%, due 8/12/29(b)
 
200
209
 
9.000%, due 8/12/29
 
200
209
 
 
 
418
 
Turkey—3.2%
 
European Bank for Reconstruction &
Development,
0.000%, due 11/10/30
TRY
120,000
326
 
Hazine Mustesarligi Varlik Kiralama AS,
7.250%, due 2/24/27
$
200
202
 
Istanbul Metropolitan Municipality,
10.500%, due 12/6/28(b)
 
600
644
 
Turkiye Ihracat Kredi Bankasi AS,
5.750%, due 7/6/26
 
200
194
 
WE Soda Investments Holding PLC,
9.500%, due 10/6/28(b)
 
200
205
 
Yapi ve Kredi Bankasi AS,
5 year CMT + 7.415%, 7.875%, due
1/22/31(d)
 
200
199
 
 
 
1,770
 
United Arab Emirates—2.5%
 
Abu Dhabi Developmental Holding Co.
PJSC,
5.375%, due 5/8/29(b)
 
200
203
 
Emirates NBD Bank PJSC,
2.625%, due 2/18/25
 
200
196
 
Finance Department Government of
Sharjah,
6.125%, due 3/6/36(b)
 
200
198
 
Issuer
Principal
Amount
Value
 
Foreign Corporate Bonds—(continued)
 
United Arab Emirates—(continued)
 
GEMS MENASA Cayman Ltd./GEMS
Education Delaware LLC,
7.125%, due 7/31/26
$
200
$199
 
MAF Global Securities Ltd.,
5 year CMT + 3.539%, 6.375%, due
12/31/99(d),(e)
 
200
197
 
Shelf Drilling Holdings Ltd.,
9.625%, due 4/15/29(b)
 
200
191
 
Sobha Sukuk Ltd.,
8.750%, due 7/17/28
 
200
202
 
 
 
1,386
 
Venezuela—0.4%
 
Petroleos de Venezuela SA,
 
 
6.000%, due 11/15/26(c)
 
250
30
 
8.500%, due 10/27/20(c)
 
75
57
 
9.750%, due 5/17/35(c)
 
930
127
 
 
 
214
 
Total Foreign Corporate Bonds34.0%
(cost $19,293)
 
18,816
 
Foreign Municipal Bonds—0.3%
 
Argentina—0.3%
 
Provincia de Buenos Aires,
 
 
5.500%, due 9/1/37(a),(b)
 
200
71
 
6.375%, due 9/1/37(a)
 
167
69
 
6.375%, due 9/1/37(a),(b)
 
49
20
 
 
 
160
 
Total Foreign Municipal Bonds0.3%
(cost $195)
 
160
 
U.S. Government—2.7%
 
U.S. Treasury Bill,
 
 
4.690%, due 12/26/24(f)
 
550
536
 
4.967%, due 1/23/25
 
300
291
 
4.968%, due 11/29/24(f)
 
670
656
 
Total U.S. Government2.7%
(cost $1,486)
 
1,483
 
 
 

 
 
 
Repurchase Agreements—1.2%
 
Fixed Income Clearing Corporation, 2.300%
dated 06/28/24, due 07/01/24, repurchase
price $663, collateralized by U.S. Treasury
Note, 0.625%, due 03/31/27, valued at
$677
 
663
663
 
Total Repurchase Agreements1.2%
(cost $663)
 
663
 
Total Investments98.5%
(cost $54,919)
 
54,447
 
Cash and other assets, less
liabilities—1.5%
 
836
 
Net Assets—100.0%
 
$55,283

 
CMT
Constant Maturity Treasury
EURIBOR
Euro Interbank Offered Rate
PLC
Public Limited Company
See accompanying Notes to Financial Statements.
June 30, 2024
51
William Blair Funds

Emerging Markets Debt Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
SOFR
Secured Overnight Financing Rate
 
(a)
Variable/Floating interest rate security. Certain variable/floating
interest rate securities are not based on a published reference rate
and spread but are determined by the issuer or agent and are based
on current market conditions. These securities do not indicate a
reference rate and spread in their description above. Rate presented
is as of June 30, 2024.
(b)
Security exempt from registration under Rule 144A of the Securities
Act of 1933. These securities may be resold in transactions exempt
from registration, normally to qualified institutional buyers.
(c)
Security is currently in default and/or non-income producing.
(d)
Floating Rate Bond. Rate shown is as of June 30, 2024.
(e)
Security is perpetual in nature and has no stated maturity.
(f)
Security, or portion of security, is segregated as collateral to cover
initial margin requirements on centrally cleared swaps aggregating a
total value of $476 (in thousands).
 
Forward Foreign Currency Contracts
Settlement
Date
Deliver/Receive
Counterparty
Local Currency
(in thousands)
USD (Base)
Purchased
or Sold
Current
Value
Net
Unrealized
Appreciation
(Depreciation)
Bought
 
 
 
 
 
 
7/29/24
Egyptian Pound
Citibank N.A.
6,500
$130
$134
$4
Sold
 
 
 
 
 
 
9/18/24
Euro
Citibank N.A.
3,260
3,533
3,505
28
9/18/24
Mexican Peso
Citibank N.A.
2,574
138
139
(1)
 
 
 
 
 
 
$27
Total net unrealized appreciation (depreciation) on forward foreign currency contracts
$31
 
Centrally Cleared Credit Default Swaps 
Reference
Entity
Buy/Sell
Protection
Fixed (Pay)
Receive Rate
Payment
Frequency
Maturity
Date
Cleared
Exchange
Notional
Amount
(in thousands)
Upfront
Payment
Paid
(Received)
Value
Unrealized
Appreciation
(Depreciation)
Argentine Republic
Government
International Bond
Buy
(5.000)%
Quarterly
June 2026
ICE
$
150
$84
$44
$(40
)
Argentine Republic
Government
International Bond
Buy
(1.000)%
Quarterly
June 2027
ICE
$
250
205
114
(91
)
China Government
International Bond
Buy
(1.000)%
Quarterly
June 2029
ICE
$
500
(8
)
(7
)
1
Saudi Arabia
Government
International Bond
Buy
(1.000)%
Quarterly
June 2026
ICE
$
400
(8
)
(5
)
3
Turkey Government
International Bond
Buy
(1.000)%
Quarterly
June 2029
ICE
$
200
20
15
(5
)
Argentine Republic
Government
International Bond
Sell
5.000%
Quarterly
June 2025
ICE
$
205
(82
)
(32
)
50
Argentine Republic
Government
International Bond
Sell
5.000%
Quarterly
June 2027
ICE
$
250
(190
)
(95
)
95
Argentine Republic
Government
International Bond
Sell
5.000%
Quarterly
June 2032
ICE
$
100
(63
)
(49
)
14
 
 
 
 
 
 
$27
 
Centrally Cleared Interest Rate Swaps 
Floating Rate
Reference
Pay/Receive
Floating Rate
Fixed
Rate
Payment
Frequency
Maturity
Date
Cleared
Exchange
Notional
Amount
(in thousands)
Upfront
Payment
Paid
(Received)
Value
Unrealized
Appreciation
(Depreciation)
1-Day USD-SOFR
Compounded
Pay
4.500%
Annual
March 2027
LCH
$
2,698
(4
)
1
5
1-Day USD-SOFR
Compounded
Pay
4.250%
Annual
March 2029
LCH
$
2,507
(1
)
8
9
1-Day USD-SOFR
Compounded
Pay
4.250%
Annual
March 2031
LCH
$
2,180
16
25
9
See accompanying Notes to Financial Statements.
June 30, 2024
52
Semi-Annual

Emerging Markets Debt Fund
Portfolio of Investments, June 30, 2024 (all dollar amounts in thousands) (unaudited)
Centrally Cleared Interest Rate Swaps (continued)
Floating Rate
Reference
Pay/Receive
Floating Rate
Fixed
Rate
Payment
Frequency
Maturity
Date
Cleared
Exchange
Notional
Amount
(in
thousands)
Upfront
Payment
Paid
(Received)
Value
Unrealized
Appreciation
(Depreciation)
1-Day USD-SOFR
Compounded
Pay
4.000%
Annual
March 2034
LCH
$
2,058
(20
)
(1
)
19
1-Day USD-SOFR
Compounded
Pay
4.000%
Annual
March 2044
LCH
$
1,591
(15
)
9
24
28-Day MXN-TIIE
Pay
10.650%
28 days
October 2025
LCH
MXN
10,000
1-Day USD-SOFR
Compounded
Receive
3.750%
Annual
June 2048
LCH
$
1,403
32
24
(8
)
6-Month EUR-
EURIBOR
Receive
3.000%
Annual
March 2027
LCH
EUR
170
1
1
6-Month EUR-
EURIBOR
Receive
2.750%
Annual
March 2029
LCH
EUR
459
7
5
(2
)
6-Month EUR-
EURIBOR
Receive
2.750%
Annual
March 2031
LCH
EUR
152
1
2
1
6-Month EUR-
EURIBOR
Receive
2.750%
Annual
March 2034
LCH
EUR
1,126
10
13
3
6-Month EUR-
EURIBOR
Receive
2.750%
Annual
March 2039
LCH
EUR
715
6
13
7
 
 
 
 
 
 
 
$67
Total net unrealized appreciation (depreciation) on swaps
$94

 
TIIE
Interbank Equilibrium Interest Rate
 
Currency Legend
BRL
Brazil Real
COP
Colombia Peso
DOP
Dominican Republic Peso
EGP
Egypt Pound
EUR
Euro Member Countries
INR
Indian Rupee
JMD
Jamaica Dollar
MXN
Mexico Peso
NGN
Nigeria Naira
PEN
Peru Nuevo Sol
PHP
Philippines Peso
PKR
Pakistan Rupee
TRY
Turkish Lira
USD
United States Dollar
UYU
Uruguay Peso
As of June 30, 2024, the value of investments in securities and other financial instruments, segregated by their hierarchical input levels used in determining fair value and by security class or other financial instruments, are shown below (in thousands). 
Investments in securities
Level 1
Level 2
Level 3
Total
Foreign Government Bonds
$
$33,325
$
$33,325
Foreign Corporate Bonds
18,816
18,816
U.S. Government
1,483
1,483
Repurchase Agreements
663
663
Foreign Municipal Bonds
160
160
Total Investments in Securities
$
$54,447
$
$54,447
 
Other Financial Instruments
Level 1
Level 2
Level 3
Total
Assets
Forward Foreign Currency Contracts
$
$31
$
$31
Swaps
213
213
Liabilities
Swaps
(119
)
(119
)
Total Other Financial Instruments
$
$125
$
$125
See accompanying Notes to Financial Statements.
June 30, 2024
53
William Blair Funds



 

Statements of Assets and Liabilities

 

 

As of June 30, 2024 (dollar amounts in thousands) (unaudited)

 

     Growth
Fund
     Large Cap
Growth
Fund
     Mid Cap
Value
Fund
     Small-Mid
Cap Core
Fund
 

Assets

        

Investments in securities, at cost

   $ 153,936      $ 1,604,197      $ 1,484      $ 185,579  
  

 

 

    

 

 

    

 

 

    

 

 

 

Investments in securities, at value

   $ 260,771      $ 2,404,550      $ 1,534      $ 197,980  

Cash

                   78         

Receivable for securities sold

     2,579                      139  

Receivable for fund shares sold

     60        2,361               706  

Receivable from Adviser

     1        172        11        24  

Dividends and interest receivable

     13        116        2        88  
  

 

 

    

 

 

    

 

 

    

 

 

 

Total assets

     263,424        2,407,199        1,625        198,937  

Liabilities

        

Payable for securities purchased

     1,824                      952  

Payable for fund shares redeemed

     36        1,568               290  

Management fee payable

     159        1,157        1        146  

Distribution fee payable

     6        36                

Other payables and accrued expenses

     46        150        10        65  
  

 

 

    

 

 

    

 

 

    

 

 

 

Total liabilities

     2,071        2,911        11        1,453  
  

 

 

    

 

 

    

 

 

    

 

 

 

Net assets

   $ 261,353      $ 2,404,288      $ 1,614      $ 197,484  
  

 

 

    

 

 

    

 

 

    

 

 

 

Capital

        

Composition of net assets

        

Paid in capital

   $ 116,229      $ 1,615,155      $ 1,581      $ 194,685  

Total distributable earnings (loss)

     145,124        789,133        33        2,799  
  

 

 

    

 

 

    

 

 

    

 

 

 

Net assets

   $ 261,353      $ 2,404,288      $ 1,614      $ 197,484  
  

 

 

    

 

 

    

 

 

    

 

 

 

Class N shares

        

Net assets

   $ 30,145      $ 179,308                

Shares outstanding

     2,735,034        6,493,213                

Net asset value per share

   $ 11.02      $ 27.61                

Class I shares

           

Net assets

   $ 181,600      $ 1,767,372      $ 87      $ 110,251  

Shares outstanding

     12,490,974        59,535,234        8,378        7,206,370  

Net asset value per share

   $ 14.54      $ 29.69      $ 10.42      $ 15.30  

Class R6 shares

           

Net assets

   $ 49,608      $ 457,608      $ 1,527      $ 87,233  

Shares outstanding

     3,395,250        15,415,297        146,537        5,693,704  

Net asset value per share

   $ 14.61      $ 29.69      $ 10.42      $ 15.32  

See accompanying Notes to Financial Statements.

 

54   

Semi-Annual

  June 30, 2024


 

Statements of Operations

 

 

For the Period Ended June 30, 2024 (dollar amounts in thousands) (unaudited)

 

     Growth
Fund
    Large Cap
Growth
Fund
    Mid Cap
Value
Fund
    Small-Mid
Cap Core
Fund
 

Investment income

        

Dividends

   $ 667     $ 5,702     $ 16     $ 1,021  

Less foreign tax withheld

     (2                 (14

Interest

     60       196             42  
  

 

 

   

 

 

   

 

 

   

 

 

 

Total income

     725       5,898       16       1,049  

Expenses

        

Management fees

     944       6,382       6       886  

Distribution fees

     39       210              

Custodian fees

     31       55       30       33  

Transfer agent fees

     35       110             5  

Sub-transfer agent fees

        

Class N

     20       94              

Class I

     33       750             71  

Professional fees

     22       77       15       21  

Registration fees

     25       67       18       19  

Shareholder reporting fees

     6       32       1       1  

Trustee fees

     11       75             8  

Other expenses

     6       31       2       5  
  

 

 

   

 

 

   

 

 

   

 

 

 

Total expenses before expense limitation

     1,172       7,883       72       1,049  

Expenses waived or reimbursed by the Adviser

        

Class N

     (6     (87            

Class I

           (687     (3     (94

Class R6

           (88     (62     (43
  

 

 

   

 

 

   

 

 

   

 

 

 

Total expenses waived or reimbursed by the Adviser

     (6     (862     (65     (137
  

 

 

   

 

 

   

 

 

   

 

 

 

Net expenses

     1,166       7,021       7       912  
  

 

 

   

 

 

   

 

 

   

 

 

 

Net investment income (loss)

     (441     (1,123     9       137  

Realized and unrealized gain (loss)

        

Net realized gain (loss) on transactions from:

        

Investments in securities

     37,114       65,534       39       4,427  
  

 

 

   

 

 

   

 

 

   

 

 

 

Total net realized gain

     37,114       65,534       39       4,427  

Change in net unrealized appreciation (depreciation) of:

        

Investments in securities

     (4,273     310,043       (24     (4,389
  

 

 

   

 

 

   

 

 

   

 

 

 

Change in net unrealized appreciation (depreciation)

     (4,273     310,043       (24     (4,389
  

 

 

   

 

 

   

 

 

   

 

 

 

Net increase (decrease) in net assets resulting from operations

   $ 32,400     $ 374,454     $ 24     $ 175  
  

 

 

   

 

 

   

 

 

   

 

 

 

See accompanying Notes to Financial Statements.

 

June 30, 2024   

William Blair Funds 

  55


 

Statements of Changes in Net Assets

 

 

For the Period Ended June 30, 2024 (unaudited) and the Year Ended December 31, 2023 (dollar amounts in thousands)

 

     Growth
Fund
    Large Cap
Growth
Fund
    Mid Cap
Value
Fund
    Small-Mid
Cap Core
Fund
 
     2024     2023     2024     2023     2024     2023     2024     2023  

Operations

                

Net investment income (loss)

   $ (441   $ (368   $ (1,123   $ 1,859     $ 9     $ 23     $ 137     $ 507  

Net realized gain (loss) on investments, and other assets and liabilities

     37,114       22,560       65,534       (43,131     39       (34     4,427       (3,377

Change in net unrealized appreciation (depreciation) on investments, and other assets and liabilities

     (4,273     47,607       310,043       516,549       (24     179       (4,389     22,648  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net increase (decrease) in net assets resulting from operations

     32,400       69,799       374,454       475,277       24       168       175       19,778  

Distributions to shareholders

                

Class N

           (3,790                                    

Class I

           (14,632                       (1           (151

Class R6

           (3,966                       (21           (180
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

           (22,388                       (22           (331

Capital stock transactions

                

Proceeds from sales of shares

     4,688       19,855       698,318       537,063       132       133       25,357       59,829  

Shares issued in reinvestment of income dividends and capital gain distributions

           21,140                         22             317  

Less cost of shares redeemed

     (15,127     (38,022     (302,586     (451,258           (350     (24,228     (27,634
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net increase (decrease) in net assets resulting from capital share transactions

     (10,439     2,973       395,732       85,805       132       (195     1,129       32,512  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net increase (decrease) in net assets

     21,961       50,384       770,186       561,082       156       (49     1,304       51,959  

Net Assets

                

Beginning of period

     239,392       189,008       1,634,102       1,073,020       1,458       1,507       196,180       144,221  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

End of period

   $ 261,353     $ 239,392     $ 2,404,288     $ 1,634,102     $ 1,614     $ 1,458     $ 197,484     $ 196,180  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

See accompanying Notes to Financial Statements.

 

56   

Semi-Annual

  June 30, 2024


 

Statements of Assets and Liabilities

 

 

As of June 30, 2024 (dollar amounts in thousands) (unaudited)

 

     Small-Mid Cap
Growth Fund
     Small-Mid Cap
Value Fund
     Small Cap
Growth Fund
     Small Cap
Value Fund
 

Assets

        

Investments in securities, at cost

   $ 1,612,768      $ 2,678      $ 713,244      $ 1,303,627  
  

 

 

    

 

 

    

 

 

    

 

 

 

Investments in securities, at value

   $ 1,846,253      $ 2,638      $ 831,853      $ 1,315,541  

Cash

            44                

Receivable for securities sold

     21,254               352         

Receivable for fund shares sold

     1,055               803        1,308  

Receivable from Adviser

     157        10        76        23  

Dividends and interest receivable

     244        3        183        1,778  
  

 

 

    

 

 

    

 

 

    

 

 

 

Total assets

     1,868,963        2,695        833,267        1,318,650  

Liabilities

        

Payable for securities purchased

     2,171               9,715        1,527  

Payable for fund shares redeemed

     690               156        168  

Management fee payable

     1,449        2        624        806  

Distribution fee payable

     20               26         

Other payables and accrued expenses

     499        3        129        179  
  

 

 

    

 

 

    

 

 

    

 

 

 

Total liabilities

     4,829        5        10,650        2,680  
  

 

 

    

 

 

    

 

 

    

 

 

 

Net assets

   $ 1,864,134      $ 2,690      $ 822,617      $ 1,315,970  
  

 

 

    

 

 

    

 

 

    

 

 

 

Capital

        

Composition of net assets

        

Paid in capital

   $ 1,566,089      $ 2,690      $ 664,114      $ 1,248,305  

Total distributable earnings (loss)

     298,045               158,503        67,665  
  

 

 

    

 

 

    

 

 

    

 

 

 

Net assets

   $ 1,864,134      $ 2,690      $ 822,617      $ 1,315,970  
  

 

 

    

 

 

    

 

 

    

 

 

 

Class N shares

        

Net assets

   $ 94,003             $ 128,026      $ 2,441  

Shares outstanding

     3,583,769               4,343,532        83,684  

Net asset value per share

   $ 26.23             $ 29.48      $ 29.17  

Class I shares

           

Net assets

   $ 1,324,474      $ 116      $ 484,640      $ 815,195  

Shares outstanding

     46,199,781        10,973        13,767,608        27,952,731  

Net asset value per share

   $ 28.67      $ 10.52      $ 35.20      $ 29.16  

Class R6 shares

           

Net assets

   $ 445,657      $ 2,574      $ 209,951      $ 498,334  

Shares outstanding

     15,487,430        244,778        5,941,264        17,083,092  

Net asset value per share

   $ 28.78      $ 10.52      $ 35.34      $ 29.17  

See accompanying Notes to Financial Statements.

 

June 30, 2024   

William Blair Funds 

  57


 

Statements of Operations

 

 

For the Period Ended June 30, 2024 (dollar amounts in thousands) (unaudited)

 

     Small-Mid Cap
Growth Fund
    Small-Mid Cap
Value Fund
    Small Cap
Growth Fund
    Small Cap
Value Fund
 

Investment income

        

Dividends

   $ 4,726     $ 22     $ 1,920     $ 12,527  

Less foreign tax withheld

     (117           (47     (29

Interest

     337             273       265  
  

 

 

   

 

 

   

 

 

   

 

 

 

Total income

     4,946       22       2,146       12,763  

Expenses

        

Management fees

     9,009       9       3,634       4,941  

Distribution fees

     126             154       3  

Custodian fees

     47       33       36       34  

Transfer agent fees

     81             59       35  

Sub-transfer agent fees

        

Class N

     68             80       1  

Class I

     899             249       524  

Professional fees

     93       15       46       66  

Registration fees

     29       10       34       27  

Shareholder reporting fees

     74       1       27       13  

Trustee fees

     88             31       58  

Other expenses

     30       2       15       21  
  

 

 

   

 

 

   

 

 

   

 

 

 

Total expenses before expense limitation

     10,544       70       4,365       5,723  

Expenses waived or reimbursed by the Adviser

        

Class N

     (66           (89      

Class I

     (872     (5     (281     (109

Class R6

     (100     (56     (62      
  

 

 

   

 

 

   

 

 

   

 

 

 

Total expenses waived or reimbursed by the Adviser

     (1,038     (61     (432     (109
  

 

 

   

 

 

   

 

 

   

 

 

 

Net expenses

     9,506       9       3,933       5,614  
  

 

 

   

 

 

   

 

 

   

 

 

 

Net investment income (loss)

     (4,560     13       (1,787     7,149  

Realized and unrealized gain (loss)

        

Net realized gain (loss) on transactions from:

        

Investments in securities

     106,364       48       52,702       60,482  

Foreign currency transactions

     (4           (2      
  

 

 

   

 

 

   

 

 

   

 

 

 

Total net realized gain

     106,360       48       52,700       60,482  

Change in net unrealized appreciation (depreciation) of:

        

Investments in securities

     (78,407     (130     8,120       (92,563
  

 

 

   

 

 

   

 

 

   

 

 

 

Change in net unrealized appreciation (depreciation)

     (78,407     (130     8,120       (92,563
  

 

 

   

 

 

   

 

 

   

 

 

 

Net increase (decrease) in net assets resulting from operations

   $ 23,393     $ (69   $ 59,033     $ (24,932
  

 

 

   

 

 

   

 

 

   

 

 

 

See accompanying Notes to Financial Statements.

 

58   

Semi-Annual

  June 30, 2024


 

Statements of Changes in Net Assets

 

 

For the Period Ended June 30, 2024 (unaudited) and the Year Ended December 31, 2023 (dollar amounts in thousands)

 

    Small-Mid Cap
Growth Fund
    Small-Mid Cap
Value Fund
    Small Cap
Growth Fund
    Small Cap
Value Fund
 
    2024     2023     2024     2023(a)     2024     2023     2024     2023  

Operations

               

Net investment income (loss)

  $ (4,560   $ (7,379   $ 13     $ 8     $ (1,787   $ (2,987   $ 7,149     $ 12,676  

Net realized gain (loss) on investments, and other assets and liabilities

    106,360       122,244       48       (22     52,700       27,256       60,482       17,717  

Change in net unrealized appreciation (depreciation) on investments, and other assets and liabilities

    (78,407     212,044       (130     90       8,120       71,883       (92,563     98,036  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net increase (decrease) in net assets resulting from operations

    23,393       326,909       (69     76       59,033       96,152       (24,932     128,429  

Distributions to shareholders

               

Class N

          (8,769                       (2,238           (77

Class I

          (107,708                       (6,617           (26,503

Class R6

          (32,457           (7           (2,645           (16,439
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

          (148,934           (7           (11,500           (43,019

Capital stock transactions

               

Proceeds from sales of shares

    163,851       275,386       2,532       1,755       93,961       254,864       100,228       147,911  

Shares issued in reinvestment of income dividends and capital gain distributions

          144,458             7             11,299             35,896  

Less cost of shares redeemed

    (318,305     (614,949     (1,354     (250     (78,288     (132,741     (67,372     (175,379
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net increase (decrease) in net assets resulting from capital share transactions

    (154,454     (195,105     1,178       1,512       15,673       133,422       32,856       8,428  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net increase (decrease) in net assets

    (131,061     (17,130     1,109       1,581       74,706       218,074       7,924       93,838  

Net Assets

               

Beginning of period

    1,995,195       2,012,325       1,581             747,911       529,837       1,308,046       1,214,208  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

End of period

  $ 1,864,134     $ 1,995,195     $ 2,690     $ 1,581     $ 822,617     $ 747,911     $ 1,315,970     $ 1,308,046  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

 

(a)

For the period from August 17, 2023 (Commencement of Operations) to December 31, 2023.

See accompanying Notes to Financial Statements.

 

June 30, 2024   

William Blair Funds 

  59


 

Statements of Assets and Liabilities

 

 

As of June 30, 2024 (dollar amounts in thousands) (unaudited)

 

     Global
Leaders
Fund
     International
Leaders
Fund
     International
Growth
Fund
     Institutional
International
Growth
Fund
 

Assets

           

Investments in securities, at cost

   $ 66,613      $ 888,617      $ 1,056,827      $ 724,266  
  

 

 

    

 

 

    

 

 

    

 

 

 

Investments in securities, at value

   $ 103,592      $ 1,166,496      $ 1,468,687      $ 982,632  

Cash

                   42        27  

Foreign currency, at value (cost $—; $281; $502; $337)

            281        502        337  

Receivable for securities sold

            4,874        19,406        12,561  

Receivable for fund shares sold

     2        5,510        983        33  

Receivable from Adviser

     19        86        131        46  

Dividends and interest receivable

     173        2,736        4,608        2,495  
  

 

 

    

 

 

    

 

 

    

 

 

 

Total assets

     103,786        1,179,983        1,494,359        998,131  

Liabilities

           

Payable for securities purchased

            4,686        13,583        21,603  

Payable for fund shares redeemed

     1        292        980        1,064  

Management fee payable

     72        808        1,139        743  

Distribution fee payable

     2        7        60         

Foreign capital gains tax liability

     37        1,123        2,657        1,723  

Other payables and accrued expenses

     50        270        346        136  
  

 

 

    

 

 

    

 

 

    

 

 

 

Total liabilities

     162        7,186        18,765        25,269  
  

 

 

    

 

 

    

 

 

    

 

 

 

Net assets

   $ 103,624      $ 1,172,797      $ 1,475,594      $ 972,862  
  

 

 

    

 

 

    

 

 

    

 

 

 

Capital

           

Composition of net assets

           

Paid in capital

   $ 56,890      $ 979,017      $ 1,017,611      $ 702,810  

Total distributable earnings (loss)

     46,734        193,780        457,983        270,052  
  

 

 

    

 

 

    

 

 

    

 

 

 

Net assets

   $ 103,624      $ 1,172,797      $ 1,475,594      $ 972,862  
  

 

 

    

 

 

    

 

 

    

 

 

 

Class N shares

           

Net assets

   $ 9,054      $ 31,340      $ 290,777         

Shares outstanding

     551,419        1,522,634        10,038,494         

Net asset value per share

   $ 16.42      $ 20.58      $ 28.97         

Class I shares

           

Net assets

   $ 79,302      $ 527,432      $ 1,036,028         

Shares outstanding

     4,771,808        25,394,299        34,546,910         

Net asset value per share

   $ 16.62      $ 20.77      $ 29.99         

Class R6 shares / Institutional shares

           

Net assets

   $ 15,268      $ 614,025      $ 148,789      $ 972,862  

Shares outstanding

     918,086        29,538,129        4,955,750        64,588,343  

Net asset value per share

   $ 16.63      $ 20.79      $ 30.02      $ 15.06  

See accompanying Notes to Financial Statements.

 

60   

Semi-Annual

  June 30, 2024


 

Statements of Operations

 

 

For the Period Ended June 30, 2024 (dollar amounts in thousands) (unaudited)

 

     Global
Leaders
Fund
    International
Leaders
Fund
    International
Growth
Fund
    Institutional
International
Growth
Fund
 

Investment income

        

Dividends

   $ 669     $ 11,379     $ 15,350     $ 9,942  

Less foreign tax withheld

     (62     (1,318     (1,661     (1,075

Interest

     14       210       266       220  

Other

           400              
  

 

 

   

 

 

   

 

 

   

 

 

 

Total income

     621       10,671       13,955       9,087  

Expenses

        

Management fees

     438       4,742       6,843       4,450  

Distribution fees

     11       41       365        

Custodian fees

     39       93       150       103  

Transfer agent fees

     4       35       48       17  

Sub-transfer agent fees

        

Class N

     6       14       211        

Class I

     32       266       481        

Professional fees

     24       87       107       86  

Registration fees

     25       32       28       13  

Shareholder reporting fees

     1       19       30       2  

Trustee fees

     5       50       65       41  

Other expenses

     4       18       23       14  
  

 

 

   

 

 

   

 

 

   

 

 

 

Total expenses before expense limitation

     589       5,397       8,351       4,726  

Expenses waived or reimbursed by the Adviser

        

Class N

     (12     (15     (229      

Class I

     (91     (289     (541      

Class R6

     (15     (183     (46      

Institutional

                       (277
  

 

 

   

 

 

   

 

 

   

 

 

 

Total expenses waived or reimbursed by the Adviser

     (118     (487     (816     (277
  

 

 

   

 

 

   

 

 

   

 

 

 

Net expenses

     471       4,910       7,535       4,449  
  

 

 

   

 

 

   

 

 

   

 

 

 

Net investment income (loss)

     150       5,761       6,420       4,638  

Realized and unrealized gain (loss)

        

Net realized gain (loss) on transactions from:

        

Investments in securities (net of foreign capital gains tax paid $1; $395; $163; $114)

     7,813       31,957       26,619       17,913  

Foreign currency translations

     (1     (192     (269     (182
  

 

 

   

 

 

   

 

 

   

 

 

 

Total net realized gain

     7,812       31,765       26,350       17,731  

Change in net unrealized appreciation (depreciation) of:

        

Investments in securities (net of foreign capital gains tax accrual $18; $21; $913; $598)

     35       26,500       32,428       20,676  

Foreign currency translations

     (3     (63     (101     (69
  

 

 

   

 

 

   

 

 

   

 

 

 

Change in net unrealized appreciation (depreciation)

     32       26,437       32,327       20,607  
  

 

 

   

 

 

   

 

 

   

 

 

 

Net increase (decrease) in net assets resulting from operations

   $ 7,994     $ 63,963     $ 65,097     $ 42,976  
  

 

 

   

 

 

   

 

 

   

 

 

 

See accompanying Notes to Financial Statements.

 

June 30, 2024   

William Blair Funds 

  61


 

Statements of Changes in Net Assets

 

 

For the Period Ended June 30, 2024 (unaudited) and the Year Ended December 31, 2023 (dollar amounts in thousands)

 

     Global
Leaders
Fund
    International
Leaders
Fund
    International
Growth
Fund
    Institutional
International
Growth
Fund
 
     2024     2023     2024     2023     2024     2023     2024     2023  

Operations

                

Net investment income (loss)

   $ 150     $ 56     $ 5,761     $ 5,901     $ 6,420     $ 10,398     $ 4,638     $ 5,934  

Net realized gain (loss) on investments, and other assets and liabilities

     7,812       9,164       31,765       (42,441     26,350       59,284       17,731       26,478  

Change in net unrealized appreciation (depreciation) on investments, and other assets and liabilities

     32       10,669       26,437       162,574       32,327       136,261       20,607       95,576  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net increase (decrease) in net assets resulting from operations

     7,994       19,889       63,963       126,034       65,097       205,943       42,976       127,988  

Distributions to shareholders

                

Class N

           (535           (64           (9,793            

Class I

           (4,850           (1,847           (36,328            

Class R6

           (998           (3,151           (5,134            

Institutional

                                               (22,859
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

           (6,383           (5,062           (51,255           (22,859

Capital stock transactions

                

Proceeds from sales of shares

     1,098       4,333       158,533       149,041       70,708       146,640       38,341       59,867  

Shares issued in reinvestment of income dividends and capital gain distributions

           6,321             4,693             49,407             22,254  

Less cost of shares redeemed

     (5,923     (15,264     (133,635     (194,991     (91,315     (354,267     (37,929     (166,508
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net increase (decrease) in net assets resulting from capital share transactions

     (4,825     (4,610     24,898       (41,257     (20,607     (158,220     412       (84,387
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net increase (decrease) in net assets

     3,169       8,896       88,861       79,715       44,490       (3,532     43,388       20,742  

Net Assets

                

Beginning of period

     100,455       91,559       1,083,936       1,004,221       1,431,104       1,434,636       929,474       908,732  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

End of period

   $ 103,624     $ 100,455     $ 1,172,797     $ 1,083,936     $ 1,475,594     $ 1,431,104     $ 972,862     $ 929,474  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

See accompanying Notes to Financial Statements.

 

 

62   

Semi-Annual

  June 30, 2024


 

Statements of Assets and Liabilities

 

 

As of June 30, 2024 (dollar amounts in thousands) (unaudited)

 

     International
Small Cap
Growth
Fund
    Emerging
Markets
Leaders
Fund
    Emerging
Markets
Growth
Fund
     Emerging
Markets
ex China
Growth Fund
 

Assets

      

Investments in securities, at cost

   $ 172,993     $ 184,645     $ 585,879      $ 18,566  
  

 

 

   

 

 

   

 

 

    

 

 

 

Investments in securities, at value

   $ 210,529     $ 227,456     $ 822,957      $ 25,562  

Foreign currency, at value (cost $80; $39; $2,511; $1)

     80       39       2,511        1  

Receivable for securities sold

     206       3,971       2,588         

Receivable for fund shares sold

     11       113       226        80  

Receivable from Adviser

     20       33       101        21  

Dividends and interest receivable

     537       632       2,196        54  
  

 

 

   

 

 

   

 

 

    

 

 

 

Total assets

     211,383       232,244       830,579        25,718  

Liabilities

      

Payable for securities purchased

     208             30         

Payable for fund shares redeemed

     18,478       25,162       105         

Payable to custodian

           2,114       113         

Management fee payable

     174       179       618        19  

Distribution fee payable

                 3         

Foreign capital gains tax liability

     685       1,027       12,581        342  

Other payables and accrued expenses

     101       143       371        47  
  

 

 

   

 

 

   

 

 

    

 

 

 

Total liabilities

     19,646       28,625       13,821        408  
  

 

 

   

 

 

   

 

 

    

 

 

 

Net assets

   $ 191,737     $ 203,619     $ 816,758      $ 25,310  
  

 

 

   

 

 

   

 

 

    

 

 

 

Capital

      

Composition of net assets

      

Paid in capital

   $ 215,351     $ 275,577     $ 704,871      $ 19,398  

Total distributable earnings (loss)

     (23,614     (71,958     111,887        5,912  
  

 

 

   

 

 

   

 

 

    

 

 

 

Net assets

   $ 191,737     $ 203,619     $ 816,758      $ 25,310  
  

 

 

   

 

 

   

 

 

    

 

 

 

Class N shares

      

Net assets

   $ 1,400     $ 970     $ 14,996         

Shares outstanding

     117,293       106,586       1,173,861         

Net asset value per share

   $ 11.94     $ 9.10     $ 12.77         

Class I shares

         

Net assets

   $ 88,853     $ 11,845     $ 200,511      $ 4,784  

Shares outstanding

     7,322,836       1,294,615       15,341,166        360,994  

Net asset value per share

   $ 12.13     $ 9.15     $ 13.07      $ 13.25  

Class R6 shares

         

Net assets

   $ 101,484     $ 190,804     $ 601,251      $ 20,526  

Shares outstanding

     8,308,055       20,867,105       45,426,271        1,546,891  

Net asset value per share

   $ 12.22     $ 9.14     $ 13.24      $ 13.27  

See accompanying Notes to Financial Statements.

 

June 30, 2024   

William Blair Funds 

  63


 

Statements of Operations

 

 

For the Period Ended June 30, 2024 (dollar amounts in thousands) (unaudited)

 

     International
Small Cap
Growth
Fund
    Emerging
Markets
Leaders
Fund
    Emerging
Markets
Growth
Fund
    Emerging
Markets
ex China
Growth Fund
 

Investment income

      

Dividends

   $ 2,393     $ 2,701     $ 7,734     $ 200  

Less foreign tax withheld

     (260     (326     (1,049     (30

Interest

     37       31       70       4  
  

 

 

   

 

 

   

 

 

   

 

 

 

Total income

     2,170       2,406       6,755       174  

Expenses

      

Management fees

     1,131       1,156       3,719       104  

Distribution fees

     2       1       18        

Custodian fees

     63       98       258       68  

Transfer agent fees

     11       10       43        

Sub-transfer agent fees

        

Class N

     1       1       9        

Class I

     46       7       113       2  

Professional fees

     35       44       90       33  

Registration fees

     24       26       38       19  

Shareholder reporting fees

     8       4       11       1  

Trustee fees

     11       13       36       1  

Other expenses

     5       5       15       2  
  

 

 

   

 

 

   

 

 

   

 

 

 

Total expenses before expense limitation

     1,337       1,365       4,350       230  

Expenses waived or reimbursed by the Adviser

        

Class N

     (1     (1     (14      

Class I

     (65     (15     (182     (20

Class R6

     (56     (190     (367     (106
  

 

 

   

 

 

   

 

 

   

 

 

 

Total expenses waived or reimbursed by the Adviser

     (122     (206     (563     (126
  

 

 

   

 

 

   

 

 

   

 

 

 

Net expenses

     1,215       1,159       3,787       104  
  

 

 

   

 

 

   

 

 

   

 

 

 

Net investment income (loss)

     955       1,247       2,968       70  

Realized and unrealized gain (loss)

      

Net realized gain (loss) on transactions from:

        

Investments in securities (net of foreign capital gains tax paid $—; $622;
$1,948; $50)

     307       10,485       21,425       433  

Foreign currency transactions

     (55     (128     (480     (16
  

 

 

   

 

 

   

 

 

   

 

 

 

Total net realized gain

     252       10,357       20,945       417  

Change in net unrealized appreciation (depreciation) of:

        

Investments in securities (net of foreign capital gains tax accrual $261; $100; $5,724; $160)

     (6,427     (908     70,685       2,484  

Foreign currency transactions

     (18     (1     (22     (1
  

 

 

   

 

 

   

 

 

   

 

 

 

Change in net unrealized appreciation (depreciation)

     (6,445     (909     70,663       2,483  
  

 

 

   

 

 

   

 

 

   

 

 

 

Net increase (decrease) in net assets resulting from operations

   $ (5,238   $ 10,695     $ 94,576     $ 2,970  
  

 

 

   

 

 

   

 

 

   

 

 

 

See accompanying Notes to Financial Statements.

 

64   

Semi-Annual

  June 30, 2024


 

Statements of Changes in Net Assets

 

 

For the Period Ended June 30, 2024 (unaudited) and the Year Ended December 31, 2023 (dollar amounts in thousands)

 

    International
Small Cap
Growth
Fund
    Emerging
Markets
Leaders
Fund
    Emerging
Markets
Growth
Fund
    Emerging
Markets
ex China
Growth Fund
 
    2024     2023     2024     2023     2024     2023     2024     2023  

Operations

               

Net investment income (loss)

  $ 955     $ 1,499     $ 1,247     $ 3,089     $ 2,968     $ 6,061     $ 70     $ 144  

Net realized gain (loss) on investments, and other assets and liabilities

    252       (17,186     10,357       (45,868     20,945       (76,294     417       (412

Change in net unrealized appreciation (depreciation) on investments, and other assets and liabilities

    (6,445     48,192       (909     60,481       70,663       141,396       2,483       4,330  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net increase (decrease) in net assets resulting from operations

    (5,238     32,505       10,695       17,702       94,576       71,163       2,970       4,062  

Distributions to shareholders

               

Class N

          (10           (8           (42            

Class I

          (911           (107           (900           (23

Class R6

          (1,252           (2,141           (3,523           (161
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

          (2,173           (2,256           (4,465           (184

Capital stock transactions

               

Proceeds from sales of shares

    8,767       12,992       8,015       27,336       82,346       302,358       2,468       5,287  

Shares issued in reinvestment of income dividends and capital gain distributions

          1,806             2,253             3,848             184  

Less cost of shares redeemed

    (52,538     (39,334     (68,676     (143,543     (183,005     (220,197     (2,138     (372
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net increase (decrease) in net assets resulting from capital share transactions

    (43,771     (24,536     (60,661     (113,954     (100,659     86,009       330       5,099  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net increase (decrease) in net assets

    (49,009     5,796       (49,966     (98,508     (6,083 )     152,707       3,300       8,977  

Net Assets

               

Beginning of period

    240,746       234,950       253,585       352,093       822,841       670,134       22,010       13,033  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

End of period

  $ 191,737     $ 240,746     $ 203,619     $ 253,585     $ 816,758     $ 822,841     $ 25,310     $ 22,010  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

 

See accompanying Notes to Financial Statements.

 

June 30, 2024   

William Blair Funds 

  65


 

Statements of Assets and Liabilities

 

 

As of June 30, 2024 (dollar amounts in thousands) (unaudited)

 

     Emerging
Markets
Small Cap
Growth Fund
     China
Growth
Fund
    Emerging
Markets
Debt
Fund
 

Assets

       

Investments in securities, at cost

   $ 320,447      $ 1,750     $ 54,919  
  

 

 

    

 

 

   

 

 

 

Investments in securities, at value

   $ 415,642      $ 1,773     $ 54,447  

Cash

            59       88  

Foreign currency, at value (cost $1,932; $1; $—)

     1,929        1        

Receivable for securities sold

     4,047               

Receivable for fund shares sold

     404               

Receivable from Adviser

     78        12       16  

Dividends and interest receivable

     848        3       962  

Unrealized appreciation on forward foreign currency contracts

                  32  
  

 

 

    

 

 

   

 

 

 

Total assets

     422,948        1,848       55,545  

Liabilities

       

Payable for variation margin on centrally cleared swaps

                  12  

Payable for securities purchased

     5,598              168  

Payable for fund shares redeemed

     460              15  

Unrealized depreciation on forward foreign currency contracts

                  1  

Management fee payable

     361        1       29  

Distribution fee payable

     1               

Foreign capital gains tax liability

     7,871               

Other payables and accrued expenses

     231        32       37  
  

 

 

    

 

 

   

 

 

 

Total liabilities

     14,522        33       262  
  

 

 

    

 

 

   

 

 

 

Net assets

   $ 408,426      $ 1,815     $ 55,283  
  

 

 

    

 

 

   

 

 

 

Capital

       

Composition of net assets

       

Paid in capital

   $ 349,978      $ 4,834     $ 66,017  

Total distributable earnings (loss)

     58,448        (3,019     (10,734
  

 

 

    

 

 

   

 

 

 

Net assets

   $ 408,426      $ 1,815     $ 55,283  
  

 

 

    

 

 

   

 

 

 

Class N shares

       

Net assets

   $ 4,585               

Shares outstanding

     211,643               

Net asset value per share

   $ 21.66               

Class I shares

       

Net assets

   $ 158,775      $ 65     $ 3,004  

Shares outstanding

     7,209,135        13,108       378,459  

Net asset value per share

   $ 22.02      $ 5.03     $ 7.94  

Class R6 shares

       

Net assets

   $ 245,066      $ 1,750     $ 52,279  

Shares outstanding

     11,094,278        349,448       6,592,030  

Net asset value per share

   $ 22.09      $ 5.01     $ 7.93  

See accompanying Notes to Financial Statements.

 

66   

Semi-Annual

  June 30, 2024


 

Statements of Operations

 

 

For the Period Ended June 30, 2024 (dollar amounts in thousands) (unaudited)

 

     Emerging
Markets
Small Cap
Growth Fund
    China
Growth
Fund
    Emerging
Markets
Debt
Fund
 

Investment income

      

Dividends

   $ 4,136     $ 28     $  

Less foreign tax withheld

     (421     (2      

Interest

     40             2,033  

Less foreign tax withheld

                 (2
  

 

 

   

 

 

   

 

 

 

Total income

     3,755       26       2,031  

Expenses

      

Management fees

     2,191       9       175  

Distribution fees

     5              

Custodian fees

     244       35       54  

Transfer agent fees

     28             1  

Sub-transfer agent fees

      

Class N

     3              

Class I

     74             1  

Professional fees

     68       18       25  

Registration fees

     27       18       18  

Shareholder reporting fees

     12       1       2  

Trustee fees

     17             2  

Other expenses

     8       2       3  
  

 

 

   

 

 

   

 

 

 

Total expenses before expense limitation

     2,677       83       281  

Expenses waived or reimbursed by the Adviser

      

Class N

     (6            

Class I

     (187     (4     (7

Class R6

     (251     (70     (99
  

 

 

   

 

 

   

 

 

 

Total expenses waived or reimbursed by the Adviser

     (444     (74     (106
  

 

 

   

 

 

   

 

 

 

Net expenses

     2,233       9       175  
  

 

 

   

 

 

   

 

 

 

Net investment income (loss)

     1,522       17       1,856  

Realized and unrealized gain (loss)

      

Net realized gain (loss) on transactions from:

      

Investments in securities (net of foreign capital gains tax paid $3,687; $—; $—)

     34,316       (207     623  

Swaps

                 (235

Forward foreign currency contracts

                 20  

Foreign currency transactions

     (292           (31
  

 

 

   

 

 

   

 

 

 

Total net realized gain (loss)

     34,024       (207     377  

Change in net unrealized appreciation (depreciation) of:

      

Investments in securities (net of foreign capital gains tax accrual $1,081; $—; $—)

     3,903       246       (140

Swaps

                 (4

Forward foreign currency contracts

                 71  

Foreign currency translations

     (67           (7
  

 

 

   

 

 

   

 

 

 

Change in net unrealized appreciation (depreciation)

     3,836       246       (80
  

 

 

   

 

 

   

 

 

 

Net increase (decrease) in net assets resulting from operations

   $ 39,382     $ 56     $ 2,153  
  

 

 

   

 

 

   

 

 

 

 

See accompanying Notes to Financial Statements.

 

June 30, 2024   

William Blair Funds 

  67


 

Statements of Changes in Net Assets

 

 

For the Period Ended June 30, 2024 (unaudited) and the Year Ended December 31, 2023 (dollar amounts in thousands)

 

    Emerging
Markets
Small Cap
Growth Fund
    China
Growth
Fund
    Emerging
Markets
Debt
Fund
 
    2024     2023     2024     2023     2024     2023  

Operations

           

Net investment income (loss)

  $ 1,522     $ 1,553     $ 17     $ 12     $ 1,856     $ 3,393  

Net realized gain (loss) on investments, and other assets and liabilities

    34,024       (5,759     (207     (870     377       (3,366

Change in net unrealized appreciation (depreciation) on investments, and other assets and liabilities

    3,836       76,219       246       386       (80     6,194  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net increase (decrease) in net assets resulting from operations

    39,382       72,013       56       (472     2,153       6,221  

Distributions to shareholders

           

Class N

          (2                        

Class I

          (344           (1     (103     (119 )(a)  

Class R6

          (781           (9     (1,710     (3,169 )(a) 
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

          (1,127           (10     (1,813     (3,288

Capital stock transactions

           

Proceeds from sales of shares

    38,942       66,177       215       1,544       5,564       4,429  

Shares issued in reinvestment of income dividends and capital gain distributions

          1,113             10       1,802       3,279  

Less cost of shares redeemed

    (59,610     (71,137     (303     (1,172     (5,859     (3,031
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net increase (decrease) in net assets resulting from capital share transactions

    (20,668     (3,847     (88     382       1,507       4,677  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net increase (decrease) in net assets

    18,714       67,039       (32     (100     1,847       7,610  

Net Assets

           

Beginning of period

    389,712       322,673       1,847       1,947       53,436       45,826  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

End of period

  $ 408,426     $ 389,712     $ 1,815     $ 1,847     $ 55,283     $ 53,436  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

 

(a)

Included in the distribution is a tax return of capital in the amount of $7 and $186 for Class I and Class R6, respectively.

 

See accompanying Notes to Financial Statements.

 

68   

Semi-Annual

  June 30, 2024



 

Notes to Financial Statements (Information as of June 30, 2024 is unaudited)

 

 

(7) Fund Share Transactions

The following tables summarize the activity in capital shares of each Fund for the period ended June 30, 2024 (in thousands):

 

    Class N  
    Dollars     Shares  

Fund

  Sales     Reinvest     Redemptions     Total     Sales     Reinvest     Redemptions     Total  

Growth Fund

  $ 713     $     $ 5,384     $ (4,671     68             508       (440

Large Cap Growth Fund

    12,763             22,732       (9,969     504             910       (406

Small-Mid Cap Growth Fund

    3,593             18,736       (15,143     136             710       (574

Small Cap Growth Fund

    5,955             9,624       (3,669     216             344       (128

Small Cap Value Fund

    158             256       (98     6             9       (3

Global Leaders Fund

    219             81       138       14             5       9  

International Leaders Fund

    1,440             6,126       (4,686     73             306       (233

International Growth Fund

    3,076             17,365       (14,289     107             609       (502

International Small Cap Growth Fund

    5             116       (111                 10       (10

Emerging Markets Leaders Fund

    2,568             2,693       (125     300             308       (8

Emerging Markets Growth Fund

    6,293             6,797       (504     540             577       (37

Emerging Markets Small Cap Growth Fund

    2,037             1,751       286       101             85       16  
    Class I  
    Dollars     Shares  

Fund

  Sales     Reinvest     Redemptions     Total     Sales     Reinvest     Redemptions     Total  

Growth Fund

  $ 1,675     $     $ 6,548     $ (4,873     123             484       (361

Large Cap Growth Fund

    610,822             217,812       393,010       22,598             7,979       14,619  

Mid Cap Value Fund

                                               

Small-Mid Cap Core Fund

    19,304             11,088       8,216       1,254             719       535  

Small-Mid Cap Growth Fund

    98,673             229,865       (131,192     3,387             7,998       (4,611

Small-Mid Cap Value Fund

    1,282             1,237       45       117             114       3  

Small Cap Growth Fund

    56,882             52,135       4,747       1,700             1,582       118  

Small Cap Value Fund

    74,151             57,373       16,778       2,536             1,951       585  

Global Leaders Fund

    613             4,330       (3,717     39             268       (229

International Leaders Fund

    148,737             61,292       87,445       7,342             3,034       4,308  

International Growth Fund

    65,284             67,717       (2,433     2,212             2,287       (75

International Small Cap Growth Fund

    5,081             17,574       (12,493     424             1,453       (1,029

Emerging Markets Leaders Fund

    911             3,423       (2,512     105             383       (278

Emerging Markets Growth Fund

    44,916             40,705       4,211       3,789             3,393       396  

Emerging Markets ex China Growth Fund

    1,503             68       1,435       123             6       117  

Emerging Markets Small Cap Growth Fund

    29,032             19,493       9,539       1,429             947       482  

China Growth Fund

    181             276       (95     34             54       (20

Emerging Markets Debt Fund

    5,042       102       5,370       (226     645       13       686       (28

 

 

June 30, 2024   

William Blair Funds 

  81


 

Notes to Financial Statements (Information as of June 30, 2024 is unaudited)

 

 

 

    Class R6  
    Dollars     Shares  

Fund

  Sales     Reinvest     Redemptions     Total     Sales     Reinvest     Redemptions     Total  

Growth Fund

  $ 2,300     $     $ 3,195     $ (895     166             233       (67

Large Cap Growth Fund

    74,733             62,042       12,691       2,727             2,286       441  

Mid Cap Value Fund

    132                   132       13                   13  

Small-Mid Cap Core Fund

    6,053             13,140       (7,087     394             856       (462

Small-Mid Cap Growth Fund

    61,585             69,704       (8,119     2,098             2,452       (354

Small-Mid Cap Value Fund

    1,250             117       1,133       115             11       104  

Small Cap Growth Fund

    31,124             16,529       14,595       942             498       444  

Small Cap Value Fund

    25,919             9,743       16,176       879             334       545  

Global Leaders Fund

    266             1,512       (1,246     16             92       (76

International Leaders Fund

    8,356             66,217       (57,861     406             3,311       (2,905

International Growth Fund

    2,348             6,233       (3,885     80             214       (134

International Small Cap Growth Fund

    3,681             34,848       (31,167     301             2,870       (2,569

Emerging Markets Leaders Fund

    4,536             62,560       (58,024     521             6,952       (6,431

Emerging Markets Growth Fund

    31,137             135,503       (104,366     2,491             11,193       (8,702

Emerging Markets ex China Growth Fund

    965             2,070       (1,105     77             175       (98

Emerging Markets Small Cap Growth Fund

    7,873             38,366       (30,493     385             1,857       (1,472

China Growth Fund

    34             27       7       7             6       1  

Emerging Markets Debt Fund

    522       1,700       489       1,733       66       215       61       220  
    Institutional Class  
    Dollars     Shares  

Fund

  Sales     Reinvest     Redemptions     Total     Sales     Reinvest     Redemptions     Total  

Institutional International Growth Fund

  $ 38,341     $     $ 37,929     $ 412       2,614             2,558       56  
    Net Change in Net Assets Relating to Fund Share Activity  
    Dollars     Shares  

Fund

  Sales     Reinvest     Redemptions     Total     Sales     Reinvest     Redemptions     Total  

Growth Fund

  $ 4,688     $     $ 15,127     $ (10,439     357             1,225       (868

Large Cap Growth Fund

    698,318             302,586       395,732       25,829             11,175       14,654  

Mid Cap Value Fund

    132                   132       13                   13  

Small-Mid Cap Core Fund

    25,357             24,228       1,129       1,648             1,575       73  

Small-Mid Cap Growth Fund

    163,851             318,305       (154,454     5,621             11,160       (5,539

Small-Mid Cap Value Fund

    2,532             1,354       1,178       232             125       107  

Small Cap Growth Fund

    93,961             78,288       15,673       2,858             2,424       434  

Small Cap Value Fund

    100,228             67,372       32,856       3,421             2,294       1,127  

Global Leaders Fund

    1,098             5,923       (4,825     69             365       (296

International Leaders Fund

    158,533             133,635       24,898       7,821             6,651       1,170  

International Growth Fund

    70,708             91,315       (20,607     2,399             3,110       (711

Institutional International Growth Fund

    38,341             37,929       412       2,614             2,558       56  

International Small Cap Growth Fund

    8,767             52,538       (43,771     725             4,333       (3,608

Emerging Markets Leaders Fund

    8,015             68,676       (60,661     926             7,643       (6,717

Emerging Markets Growth Fund

    82,346             183,005       (100,659     6,820             15,163       (8,343

Emerging Markets ex China Growth Fund

    2,468             2,138       330       200             181       19  

Emerging Markets Small Cap Growth Fund

    38,942             59,610       (20,668     1,915             2,889       (974

China Growth Fund

    215             303       (88     41             60       (19

Emerging Markets Debt Fund

    5,564       1,802       5,859       1,507       711       228       747       192  

 

82   

Semi-Annual

  June 30, 2024


 

Notes to Financial Statements (Information as of June 30, 2024 is unaudited)

 

 

 

The following tables summarize the activity in capital shares of each Fund for the year ended December 31, 2023 (in thousands):

 

    Class N  
    Dollars     Shares  

Fund

  Sales     Reinvest     Redemptions     Total     Sales     Reinvest     Redemptions     Total  

Growth Fund

  $ 4,252     $ 3,599     $ 6,032     $ 1,819       434       376       634       176  

Large Cap Growth Fund

    16,848             39,379       (22,531     875             2,050       (1,175

Small-Mid Cap Growth Fund

    8,860       8,508       28,569       (11,201     346       333       1,122       (443

Small Cap Growth Fund

    11,663       2,189       21,123       (7,271     449       81       819       (289

Small Cap Value Fund

    464       75       783       (244     17       3       28       (8

Global Leaders Fund

    881       503       2,660       (1,276     59       34       179       (86

International Leaders Fund

    4,849       64       10,929       (6,016     264       3       593       (326

International Growth Fund

    5,950       9,672       56,886       (41,264     224       356       2,138       (1,558

International Small Cap Growth Fund

    24       9       327       (294     2       1       29       (26

Emerging Markets Leaders Fund

    2,038       8       2,171       (125     239       1       257       (17

Emerging Markets Growth Fund

    11,707       35       14,091       (2,349     1,100       3       1,308       (205

Emerging Markets Small Cap Growth Fund

    1,822       2       1,721       103       101             95       6  
    Class I  
    Dollars     Shares  

Fund

  Sales     Reinvest     Redemptions     Total     Sales     Reinvest     Redemptions     Total  

Growth Fund

  $ 4,742     $ 13,575     $ 25,017     $ (6,700     391       1,078       2,022       (553

Large Cap Growth Fund

    354,428             269,597       84,831       17,533             12,664       4,869  

Mid Cap Value Fund

    1       1             2                          

Small-Mid Cap Core Fund

    18,885       141       16,079       2,947       1,309       9       1,124       194  

Small-Mid Cap Growth Fund

    193,616       103,605       503,290       (206,069     6,954       3,716       18,125       (7,455

Small-Mid Cap Value Fund(a)

    80                   80       8                   8  

Small Cap Growth Fund

    177,891       6,557       92,150       92,298       5,831       204       3,022       3,013  

Small Cap Value Fund

    108,222       25,229       130,635       2,816       3,800       856       4,638       18  

Global Leaders Fund

    2,164       4,820       10,335       (3,351     145       319       706       (242

International Leaders Fund

    115,369       1,802       117,724       (553     6,260       94       6,470       (116

International Growth Fund

    133,882       35,091       264,406       (95,433     4,850       1,249       9,621       (3,522

International Small Cap Growth Fund

    11,022       861       19,435       (7,552     971       71       1,711       (669

Emerging Markets Leaders Fund

    3,079       105       19,943       (16,759     359       12       2,366       (1,995

Emerging Markets Growth Fund

    79,866       856       97,685       (16,963     7,251       75       8,913       (1,587

Emerging Markets ex China Growth Fund

    2,593       23       130       2,486       253       2       12       243  

Emerging Markets Small Cap Growth Fund

    36,577       332       35,416       1,493       2,081       17       1,994       104  

China Growth Fund

    525       1       754       (228     89             135       (46

Emerging Markets Debt Fund

    4,154       119       2,113       2,160       560       16       294       282  

 

(a) 

For the period from August 17, 2023 (Commencement of Operations) to December 31, 2023.

 

June 30, 2024   

William Blair Funds 

  83


 

Notes to Financial Statements (Information as of June 30, 2024 is unaudited)

 

 

 

    Class R6  
    Dollars     Shares  

Fund

  Sales     Reinvest     Redemptions     Total     Sales     Reinvest     Redemptions     Total  

Growth Fund

  $ 10,861     $ 3,966     $ 6,973     $ 7,854       848       313       558       603  

Large Cap Growth Fund

    165,787             142,282       23,505       7,783             6,409       1,374  

Mid Cap Value Fund

    132       21       350       (197     14       2       38       (22

Small-Mid Cap Core Fund

    40,944       176       11,555       29,565       2,767       12       812       1,967  

Small-Mid Cap Growth Fund

    72,910       32,345       83,090       22,165       2,602       1,156       3,008       750  

Small-Mid Cap Value Fund(a)

    1,675       72       50       1,432       167       1       27       141  

Small Cap Growth Fund

    65,310       2,553       19,468       48,395       2,121       79       640       1,560  

Small Cap Value Fund

    39,225       10,592       43,961       5,856       1,364       359       1,549       174  

Global Leaders Fund

    1,288       998       2,269       17       88       66       153       1  

International Leaders Fund

    28,823       2,827       66,338       (34,688     1,538       147       3,627       (1,942

International Growth Fund

    6,808       4,644       32,975       (21,523     251       165       1,201       (785

International Small Cap Growth Fund

    1,946       936       19,572       (16,690     166       77       1,670       (1,427

Emerging Markets Leaders Fund

    22,219       2,140       121,429       (97,070     2,652       251       14,260       (11,357

Emerging Markets Growth Fund

    210,785       2,957       108,421       105,321       18,636       257       9,641       9,252  

Emerging Markets ex China Growth Fund

    2,694       161       242       2,613       272       14       24       262  

Emerging Markets Small Cap Growth Fund

    27,778       779       34,000       (5,443     1,540       40       1,885       (305

China Growth Fund

    1,019       9       418       610       197       2       74       125  

Emerging Markets Debt Fund

    275       3,160       918       2,517       37       421       125       333  
    Institutional Class  
    Dollars     Shares  

Fund

  Sales     Reinvest     Redemptions     Total     Sales     Reinvest     Redemptions     Total  

Institutional International Growth Fund

  $ 59,867     $ 22,254     $ 166,508     $ (84,387     4,360       1,576       12,298       (6,362
    Net Change in Net Assets Relating to Fund Share Activity  
    Dollars     Shares  

Fund

  Sales     Reinvest     Redemptions     Total     Sales     Reinvest     Redemptions     Total  

Growth Fund

  $ 19,855     $ 21,140     $ 38,022     $ 2,973       1,673       1,767       3,214       226  

Large Cap Growth Fund

    537,063             451,258       85,805       26,191             21,123       5,068  

Mid Cap Value Fund

    133       22       350       195       14       2       38       (22

Small-Mid Cap Core Fund

    59,829       317       27,634       32,512       4,076       21       1,936       2,161  

Small-Mid Cap Growth Fund

    275,386       144,458       614,949       (195,105     9,902       5,205       22,255       (7,148

Small-Mid Cap Value Fund(a)

    1,755       7       250       1,512       175       1       27       149  

Small Cap Growth Fund

    254,864       11,299       132,741       133,422       8,401       364       4,481       4,284  

Small Cap Value Fund

    147,911       35,896       175,379       8,428       5,181       1,218       6,215       184  

Global Leaders Fund

    4,333       6,321       15,264       (4,610     292       419       1,038       (327

International Leaders Fund

    149,041       4,693       194,991       (41,257     8,062       244       10,690       (2,384

International Growth Fund

    146,640       49,407       354,267       (158,220     5,325       1,770       12,960       (5,865

Institutional International Growth Fund

    59,867       22,254       166,508       (84,387     4,360       1,576       12,298       (6,362

International Small Cap Growth Fund

    12,992       1,806       39,334       (24,536     1,139       149       3,410       (2,122

Emerging Markets Leaders Fund

    27,336       2,253       143,543       (113,954     3,250       264       16,883       (13,369

Emerging Markets Growth Fund

    302,358       3,848       220,197       86,009       26,987       335       19,862       7,460  

Emerging Markets ex China Growth Fund

    5,287       184       372       5,099       525       16       36       505  

Emerging Markets Small Cap Growth Fund

    66,177       1,113       71,137       (3,847     3,722       57       3,974       (195

China Growth Fund

    1,544       10       1,172       382       286       2       209       79  

Emerging Markets Debt Fund

    4,429       3,279       3,031       4,677       597       437       419       615  

 

(a) 

For the period from August 17, 2023 (Commencement of Operations) to December 31, 2023.

(8) Subsequent Events

The Funds have evaluated subsequent events through the date of issuance of the Funds’ financial statements and have determined there is no impact to the Funds’ financial statements.

 

84   

Semi-Annual

  June 30, 2024


 

Financial Highlights — For a share outstanding throughout each period

 

 

 

Growth Fund

 

     Class N  
     (unaudited)
Period Ended

June 30,
    Years Ended December 31,  
     2024     2023     2022     2021     2020     2019  

Net asset value, beginning of period

   $ 9.70     $ 7.95     $ 11.81     $ 11.15     $ 9.45     $ 7.91  

Income (loss) from investment operations:

            

Net investment income (loss)

     (0.03     (0.04     (0.05     (0.08     (0.05     (0.03

Net realized and unrealized gain (loss) on investments

     1.35       3.03       (3.44     2.49       3.43       2.54  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     1.32       2.99       (3.49     2.41       3.38       2.51  

Less distributions from:

            

Net realized gain

           1.24       0.37       1.75       1.68       0.97  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

           1.24       0.37       1.75       1.68       0.97  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 11.02     $ 9.70     $ 7.95     $ 11.81     $ 11.15     $ 9.45  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     13.61       37.76       (29.65     22.09       35.97       31.97  

Ratios to average daily net assets (%):**

            

Expenses, before waivers and reimbursements

     1.24       1.26       1.24       1.21       1.26       1.24  

Expenses, net of waivers and reimbursements

     1.20       1.20       1.20       1.20       1.20       1.20  

Net investment income (loss), before waivers and reimbursements

     (0.66     (0.49     (0.60     (0.67     (0.55     (0.35

Net investment income (loss), net of waivers and reimbursements

     (0.62     (0.43     (0.56     (0.66     (0.49     (0.31

Class N net assets at the end of the period (in thousands)

   $ 30,145     $ 30,789     $ 23,829     $ 36,807     $ 35,494     $ 32,710  

Portfolio turnover rate (%)*

     31       37       41       30       46       39  

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

     Class I  
     (unaudited)
Period Ended

June 30,
    Years Ended December 31,  
     2024     2023     2022     2021     2020     2019  

Net asset value, beginning of period

   $ 12.77     $ 10.15     $ 14.91     $ 13.64     $ 11.25     $ 9.25  

Income (loss) from investment operations:

            

Net investment income (loss)

     (0.02     (0.02     (0.04     (0.05     (0.03     (0.00 )^ 

Net realized and unrealized gain (loss) on investments

     1.79       3.88       (4.35     3.07       4.10       2.97  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     1.77       3.86       (4.39     3.02       4.07       2.97  

Less distributions from:

            

Net realized gain

           1.24       0.37       1.75       1.68       0.97  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

           1.24       0.37       1.75       1.68       0.97  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 14.54     $ 12.77     $ 10.15     $ 14.91     $ 13.64     $ 11.25  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     13.86       38.15       (29.52     22.54       36.35       32.32  

Ratios to average daily net assets (%):**

            

Expenses

     0.90       0.91       0.92       0.89       0.93       0.92  

Net investment income (loss)

     (0.32     (0.14     (0.29     (0.35     (0.23     (0.03

Class I net assets at the end of the period (in thousands)

   $ 181,600     $ 164,166     $ 136,051     $ 293,900     $ 249,716     $ 220,660  

Portfolio turnover rate (%)*

     31       37       41       30       46       39  

 

^

Amount is less than $0.005 per share.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

See accompanying Notes to Financial Statements.

 

June 30, 2024    William Blair Funds    85


 

Financial Highlights — For a share outstanding throughout each period

 

 

 

Growth Fund (continued)

 

     Class R6  
     (unaudited)
Period Ended

June 30,
    Years Ended December 31,  
     2024     2023     2022     2021     2020     2019(a)  

Net asset value, beginning of period

   $ 12.84     $ 10.19     $ 14.95     $ 13.67     $ 11.26     $ 11.06  

Income (loss) from investment operations:

            

Net investment income (loss)

     (0.02     (0.01     (0.02     (0.04     (0.03     (0.00 )^ 

Net realized and unrealized gain (loss) on investments

     1.79       3.90       (4.37     3.07       4.12       1.17  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     1.77       3.89       (4.39     3.03       4.09       1.17  

Less distributions from:

            

Net realized gain

           1.24       0.37       1.75       1.68       0.97  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

           1.24       0.37       1.75       1.68       0.97  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 14.61     $ 12.84     $ 10.19     $ 14.95     $ 13.67     $ 11.26  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     13.87       38.19       (29.44     22.55       36.50       10.75  

Ratios to average daily net assets (%):**

            

Expenses

     0.86       0.87       0.87       0.84       0.87       0.88  

Net investment income (loss)

     (0.28     (0.10     (0.18     (0.29     (0.23     (0.06

Class R6 net assets at the end of the period (in thousands)

   $ 49,608     $ 44,437     $ 29,128     $ 14,993     $ 12,041     $ 217  

Portfolio turnover rate (%)*

     31       37       41       30       46       39  

 

(a) 

For the period from May 2, 2019 (Commencement of Operations) to December 31, 2019.

 

^

Amount is less than $0.005 per share.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

Note: Net investment income (loss) per share is based on the average shares outstanding during the period.

Performance cited represents past performance. Past performance does not guarantee future results and current performance may be lower or higher than the data quoted. Results shown are annual returns, which assume reinvestment of dividends and capital gains. Investment returns and principal will fluctuate and you may have a gain or loss when you sell shares. For the most current month-end performance information, please call 1-800-742-7272 or visit our Web site at www.williamblairfunds.com.

 

See accompanying Notes to Financial Statements.

 

86    Semi-Annual    June 30, 2024


 

Financial Highlights — For a share outstanding throughout each period

 

 

 

Large Cap Growth Fund

 

     Class N  
     (unaudited)
Period Ended
June 30,
    Years Ended December 31,  
     2024     2023     2022     2021     2020     2019  

Net asset value, beginning of period

   $ 22.95     $ 16.38     $ 24.49     $ 20.03     $ 15.27     $ 11.99  

Income (loss) from investment operations:

            

Net investment income ( loss )

     (0.04     (0.02     (0.03     (0.07     0.01       0.00 ^ 

Net realized and unrealized gain (loss) on investments

     4.70       6.59       (7.96     5.65       5.52       4.29  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     4.66       6.57       (7.99     5.58       5.53       4.29  

Less distributions from:

            

Net investment income

                             0.00 ^      0.01  

Net realized gain

                 0.12       1.12       0.77       1.00  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

                 0.12       1.12       0.77       1.01  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 27.61     $ 22.95     $ 16.38     $ 24.49     $ 20.03     $ 15.27  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     20.31       40.11       (32.61     28.03       36.30       36.00  

Ratios to average daily net assets (%):**

            

Expenses, before waivers and reimbursements

     1.00       1.04       1.03       1.05       1.09       1.12  

Expenses, net of waivers and reimbursements

     0.90       0.90       0.90       0.90       0.90       0.95  

Net investment income (loss), before waivers and reimbursements

     (0.45     (0.24     (0.28     (0.46     (0.15     (0.14

Net investment income (loss), net of waivers and reimbursements

     (0.35     (0.10     (0.15     (0.31     0.04       0.03  

Class N net assets at the end of the period (in thousands)

   $ 179,308     $ 158,351     $ 132,225     $ 203,014     $ 138,152     $ 65,314  

Portfolio turnover rate (%)*

     17       43       29       26       35       37  

 

^

Amount is less than $0.005 per share.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

     Class I  
     (unaudited)
Period Ended
June 30,
    Years Ended December 31,  
     2024     2023      2022     2021     2020      2019  

Net asset value, beginning of period

   $ 24.64     $ 17.54      $ 26.18     $ 21.29     $ 16.19      $ 12.66  

Income (loss) from investment operations:

              

Net investment income (loss)

     (0.01     0.03        0.03       (0.02     0.06        0.04  

Net realized and unrealized gain (loss) on investments

     5.06       7.07        (8.53     6.03       5.85        4.54  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

    

 

 

 

Total from investment operations

     5.05       7.10        (8.50     6.01       5.91        4.58  

Less distributions from:

              

Net investment income

                  0.02             0.04        0.05  

Net realized gain

                  0.12       1.12       0.77        1.00  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

    

 

 

 

Total distributions

                  0.14       1.12       0.81        1.05  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

    

 

 

 

Net asset value, end of period

   $ 29.69     $ 24.64      $ 17.54     $ 26.18     $ 21.29      $ 16.19  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

    

 

 

 

Total return (%)*

     20.50       40.48        (32.46     28.39       36.59        36.35  

Ratios to average daily net assets (%):**

              

Expenses, before waivers and reimbursements

     0.74       0.78        0.79       0.75       0.80        0.81  

Expenses, net of waivers and reimbursements

     0.65       0.65        0.65       0.65       0.65        0.70  

Net investment income (loss), before waivers and reimbursements

     (0.18     0.02        (0.01     (0.17     0.16        0.16  

Net investment income (loss), net of waivers and reimbursements

     (0.09     0.15        0.13       (0.07     0.31        0.27  

Class I net assets at the end of the period (in thousands)

   $ 1,767,372     $ 1,106,857      $ 702,441     $ 669,060     $ 397,370      $ 236,930  

Portfolio turnover rate (%)*

     17       43        29       26       35        37  

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

 

See accompanying Notes to Financial Statements.

 

June 30, 2024    William Blair Funds    87


 

Financial Highlights — For a share outstanding throughout each period

 

 

 

Large Cap Growth Fund (continued)

 

     Class R6  
     (unaudited)
Period Ended
June 30,
    Years Ended December 31,  
     2024     2023      2022     2021     2020     2019(a)  

Net asset value, beginning of period

   $ 24.64     $ 17.53      $ 26.16     $ 21.27     $ 16.17     $ 15.12  

Income (loss) from investment operations:

             

Net investment income (loss)

     (0.01     0.04        0.04       (0.00 )^      0.01       0.04  

Net realized and unrealized gain (loss) on investments

     5.06       7.07        (8.52     6.01       5.91       2.07  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     5.05       7.11        (8.48     6.01       5.92       2.11  

Less distributions from:

             

Net investment income

                  0.03       0.00^       0.05       0.06  

Net realized gain

                  0.12       1.12       0.77       1.00  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

                  0.15       1.12       0.82       1.06  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 29.69     $ 24.64      $ 17.53     $ 26.16     $ 21.27     $ 16.17  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     20.50       40.56        (32.41     28.42       36.70       14.13  

Ratios to average daily net assets (%):**

             

Expenses, before waivers and reimbursements

     0.64       0.65        0.66       0.67       0.70       0.71  

Expenses, net of waivers and reimbursements

     0.60       0.60        0.60       0.60       0.60       0.60  

Net investment income (loss), before waivers and reimbursements

     (0.09     0.14        0.13       (0.08     (0.03     0.22  

Net investment income (loss), net of waivers and reimbursements

     (0.05     0.19        0.19       (0.01     0.07       0.33  

Class R6 net assets at the end of the period (in thousands)

   $ 457,608     $ 368,894      $ 238,354     $ 233,946     $ 177,347     $ 1,590  

Portfolio turnover rate (%)*

     17       43        29       26       35       37  

 

(a) 

For the period from May 2, 2019 (Commencement of Operations) to December 31, 2019.

 

^

Amount is less than $0.005 per share.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

Note: Net investment income (loss) per share is based on the average shares outstanding during the period.

Performance cited represents past performance. Past performance does not guarantee future results and current performance may be lower or higher than the data quoted. Results shown are annual returns, which assume reinvestment of dividends and capital gains. Investment returns and principal will fluctuate and you may have a gain or loss when you sell shares. For the most current month-end performance information, please call 1-800-742-7272 or visit our Web site at www.williamblairfunds.com.

 

See accompanying Notes to Financial Statements.

 

88    Semi-Annual    June 30, 2024


 

Financial Highlights — For a share outstanding throughout each period

 

 

 

Mid Cap Value Fund

 

     Class I  
     (unaudited)
Period Ended
June 30,
    Year Ended
December 31,
    Period Ended
December 31,
 
     2024     2023     2022(a)  

Net asset value, beginning of period

   $ 10.25     $ 9.19     $ 10.00  

Income (loss) from investment operations:

      

Net investment income (loss)

     0.07       0.14       0.12  

Net realized and unrealized gain (loss) on investments

     0.10       1.07       (0.83
  

 

 

   

 

 

   

 

 

 

Total from investment operations

     0.17       1.21       (0.71

Less distributions from:

      

Net investment income

           0.15       0.10  
  

 

 

   

 

 

   

 

 

 

Total distributions

           0.15       0.10  
  

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 10.42     $ 10.25     $ 9.19  
  

 

 

   

 

 

   

 

 

 

Total return (%)*

     1.66       13.21       (7.13

Ratios to average daily net assets (%):**

      

Expenses, before waivers and reimbursements

     8.93       9.08       8.52  

Expenses, net of waivers and reimbursements

     0.75       0.75       0.75  

Net investment income (loss), before waivers and reimbursements

     (6.92     (6.85     (6.14

Net investment income (loss), net of waivers and reimbursements

     1.26       1.48       1.63  

Class I net assets at the end of the period (in thousands)

   $ 87     $ 85     $ 76  

Portfolio turnover rate (%)*

     26       32       21  

 

(a) 

For the period from March 16, 2022 (Commencement of Operations) to December 31, 2022.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

     Class R6  
     (unaudited)
Period Ended
June 30,
    Year Ended
December 31,
    Period Ended
December 31,
 
     2024     2023     2022(a)  

Net asset value, beginning of period

   $ 10.25     $ 9.19     $ 10.00  

Income (loss) from investment operations:

      

Net investment income (loss)

     0.07       0.14       0.11  

Net realized and unrealized gain (loss) on investments

     0.10       1.08       (0.82
  

 

 

   

 

 

   

 

 

 

Total from investment operations

     0.17       1.22       (0.71

Less distributions from:

      

Net investment income

           0.16       0.10  
  

 

 

   

 

 

   

 

 

 

Total distributions

           0.16       0.10  
  

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 10.42     $ 10.25     $ 9.19  
  

 

 

   

 

 

   

 

 

 

Total return (%)*

     1.66       13.14       (7.01

Ratios to average daily net assets (%):**

      

Expenses, before waivers and reimbursements

     8.87       9.02       8.52  

Expenses, net of waivers and reimbursements

     0.70       0.70       0.70  

Net investment income (loss), before waivers and reimbursements

     (6.84     (6.82     (6.35

Net investment income (loss), net of waivers and reimbursements

     1.33       1.50       1.47  

Class R6 net assets at the end of the period (in thousands)

   $ 1,527     $ 1,373     $ 1,431  

Portfolio turnover rate (%)*

     26       32       21  

 

(a) 

For the period from March 16, 2022 (Commencement of Operations) to December 31, 2022.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

See accompanying Notes to Financial Statements.

 

June 30, 2024    William Blair Funds    89


 

Financial Highlights — For a share outstanding throughout each period

 

 

 

Mid Cap Value Fund (continued)

Note: Net investment income (loss) per share is based on the average shares outstanding during the period.

Performance cited represents past performance. Past performance does not guarantee future results and current performance may be lower or higher than the data quoted. Results shown are annual returns, which assume reinvestment of dividends and capital gains. Investment returns and principal will fluctuate and you may have a gain or loss when you sell shares. For the most current month-end performance information, please call 1-800-742-7272 or visit our Web site at www.williamblairfunds.com.

 

See accompanying Notes to Financial Statements.

 

90    Semi-Annual    June 30, 2024


 

Financial Highlights — For a share outstanding throughout each period

 

 

 

Small-Mid Cap Core Fund

 

     Class I  
     (unaudited)
Period Ended
June 30,
    Years Ended December 31,     Period Ended
December 31,
 
     2024     2023      2022     2021     2020     2019(a)  

Net asset value, beginning of period

   $ 15.29     $ 13.52      $ 16.31     $ 12.88     $ 10.68     $ 10.00  

Income (loss) from investment operations:

             

Net investment income (loss)

     0.01       0.04        (0.01     (0.03     0.00 ^      0.02  

Net realized and unrealized gain (loss) on investments

     0.00 ^      1.75        (2.78     3.46       2.20       0.67  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     0.01       1.79        (2.79     3.43       2.20       0.69  

Less distributions from:

             

Net investment income

           0.02                          0.01  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

           0.02                          0.01  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 15.30     $ 15.29      $ 13.52     $ 16.31     $ 12.88     $ 10.68  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     0.07       13.26        (17.11     26.63       20.60       6.87  

Ratios to average daily net assets (%):**

             

Expenses, before waivers and reimbursements

     1.13       1.16        1.21       1.25       1.22       3.92  

Expenses, net of waivers and reimbursements

     0.95       0.95        0.95       0.95       0.95       0.95  

Net investment income (loss), before waivers and reimbursements

     (0.06     0.09        (0.32     (0.47     (0.27     (2.23

Net investment income (loss), net of waivers and reimbursements

     0.12       0.30        (0.06     (0.17           0.74  

Class I net assets at the end of the period (in thousands)

   $ 110,251     $ 101,972      $ 87,540     $ 61,433     $ 22,958     $ 1,655  

Portfolio turnover rate (%)*

     29       41        50       45       244       12  

 

(a) 

For the period from October 1, 2019 (Commencement of Operations) to December 31, 2019.

 

^

Amount is less than $0.005 per share.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

     Class R6  
     Period Ended
June 30,
     Years Ended December 31,     Period Ended
December 31,
 
     2024      2023      2022     2021     2020     2019(a)  

Net asset value, beginning of period

   $ 15.30      $ 13.53      $ 16.32     $ 12.88     $ 10.68     $ 10.00  

Income (loss) from investment operations:

              

Net investment income (loss)

     0.01        0.05        0.00 ^      (0.02     0.01       0.01  

Net realized and unrealized gain (loss) on investments

     0.01        1.75        (2.79     3.46       2.19       0.68  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     0.02        1.80        (2.79     3.44       2.20       0.69  

Less distributions from:

              

Net investment income

            0.03                    0.00 ^       0.01  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

            0.03                    0.00 ^       0.01  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 15.32      $ 15.30      $ 13.53     $ 16.32     $ 12.88     $ 10.68  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     0.13        13.30        (17.10     26.71       20.60       6.88  

Ratios to average daily net assets (%):**

              

Expenses, before waivers and reimbursements

     0.99        1.01        1.05       1.16       1.07       3.92  

Expenses, net of waivers and reimbursements

     0.90        0.90        0.90       0.90       0.90       0.90  

Net investment income (loss), before waivers and reimbursements

     0.07        0.24        (0.14     (0.37     (0.11     (2.71

Net investment income (loss), net of waivers and reimbursements

     0.16        0.35        0.01       (0.11     0.06       0.31  

Class R6 net assets at the end of the period (in thousands)

   $ 87,233      $ 94,208      $ 56,681     $ 31,347     $ 7,087     $ 4,933  

Portfolio turnover rate (%)*

     29        41        50       45       244       12  

 

(a) 

For the period from October 1, 2019 (Commencement of Operations) to December 31, 2019.

 

^

Amount is less than $0.005 per share.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

See accompanying Notes to Financial Statements.

 

June 30, 2024    William Blair Funds    91


 

Financial Highlights — For a share outstanding throughout each period

 

 

 

Small-Mid Cap Core Fund (continued)

Note: Net investment income (loss) per share is based on the average shares outstanding during the period.

Performance cited represents past performance. Past performance does not guarantee future results and current performance may be lower or higher than the data quoted. Results shown are annual returns, which assume reinvestment of dividends and capital gains. Investment returns and principal will fluctuate and you may have a gain or loss when you sell shares. For the most current month-end performance information, please call 1-800-742-7272 or visit our Web site at www.williamblairfunds.com.

 

See accompanying Notes to Financial Statements.

 

92    Semi-Annual    June 30, 2024


 

Financial Highlights — For a share outstanding throughout each period

 

 

 

Small-Mid Cap Growth Fund

 

     Class N  
     (unaudited)
Period Ended
June 30,
    Years Ended December 31,  
     2024     2023     2022     2021     2020     2019  

Net asset value, beginning of period

   $ 25.92     $ 23.96     $ 32.27     $ 32.96     $ 25.41     $ 20.97  

Income (loss) from investment operations:

            

Net investment income (loss)

     (0.10     (0.16     (0.23     (0.36     (0.24     (0.20

Net realized and unrealized gain (loss) on investments

     0.41       4.35       (7.22     2.90       8.37       6.56  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     0.31       4.19       (7.45     2.54       8.13       6.36  

Less distributions from:

            

Net realized gain

           2.23       0.86       3.23       0.58       1.92  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

           2.23       0.86       3.23       0.58       1.92  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 26.23     $ 25.92     $ 23.96     $ 32.37     $ 32.96     $ 25.41  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     1.20       17.64       (23.11     8.27       32.04       30.41  

Ratios to average daily net assets (%):**

            

Expenses, before waivers and reimbursements

     1.37       1.39       1.43       1.43       1.45       1.43  

Expenses, net of waivers and reimbursements

     1.24       1.28       1.35       1.35       1.35       1.35  

Net investment income (loss), before waivers and reimbursements

     (0.86     (0.72     (0.96     (1.10     (1.01     (0.88

Net investment income (loss), net of waivers and reimbursements

     (0.73     (0.61     (0.88     (1.02     (0.91     (0.80

Class N net assets at the end of the period (in thousands)

   $ 94,003     $ 107,791     $ 110,241     $ 232,166     $ 314,572     $ 334,017  

Portfolio turnover rate (%)*

     24       49       49       38       55       56  

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

     Class I  
     (unaudited)
Period Ended
June 30,
    Years Ended December 31,  
     2024     2023     2022     2021     2020     2019  

Net asset value, beginning of period

   $ 28.29     $ 25.91     $ 34.72     $ 35.13     $ 26.99     $ 22.12  

Income (loss) from investment operations:

            

Net investment income (loss)

     (0.07     (0.10     (0.18     (0.29     (0.19     (0.14

Net realized and unrealized gain (loss) on investments

     0.45       4.71       (7.77     3.11       8.91       6.93  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     0.38       4.61       (7.95     2.82       8.72       6.79  

Less distributions from:

            

Net realized gain

           2.23       0.86       3.23       0.58       1.92  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

           2.23       0.86       3.23       0.58       1.92  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 28.67     $ 28.29     $ 25.91     $ 34.72     $ 35.13     $ 26.99  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     1.34       17.93       (22.92     8.56       32.35       30.77  

Ratios to average daily net assets (%):**

            

Expenses, before waivers and reimbursements

     1.12       1.14       1.17       1.16       1.17       1.16  

Expenses, net of waivers and reimbursements

     0.99       1.03       1.10       1.10       1.10       1.10  

Net investment income (loss), before waivers and reimbursements

     (0.60     (0.47     (0.70     (0.83     (0.73     (0.59

Net investment income (loss), net of waivers and reimbursements

     (0.47     (0.36     (0.63     (0.77     (0.66     (0.53

Class I net assets at the end of the period (in thousands)

   $ 1,324,474     $ 1,437,622     $ 1,509,931     $ 2,487,862     $ 3,139,290     $ 2,531,823  

Portfolio turnover rate (%)*

     24       49       49       38       55       56  

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

See accompanying Notes to Financial Statements.

 

June 30, 2024    William Blair Funds    93


 

Financial Highlights — For a share outstanding throughout each period

 

 

 

Small-Mid Cap Growth Fund (continued)

 

     Class R6  
     (unaudited)
Period Ended
June 30,
    Years Ended December 31,  
     2024     2023     2022     2021     2020     2019(a)  

Net asset value, beginning of period

   $ 28.39     $ 25.99     $ 34.79     $ 35.18     $ 27.01     $ 26.76  

Income (loss) from investment operations:

            

Net investment income (loss)

     (0.06     (0.09     (0.15     (0.26     (0.17     (0.09

Net realized and unrealized gain (loss) on investments

     0.45       4.72       (7.79     3.10       8.92       2.26  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     0.39       4.63       (7.94     2.84       8.75       2.17  

Less distributions from:

            

Net realized gain

           2.23       0.86       3.23       0.58       1.92  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

           2.23       0.86       3.23       0.58       1.92  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 28.78     $ 28.39     $ 25.99     $ 34.79     $ 35.18     $ 27.01  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     1.34       17.95       (22.84     8.60       32.44       8.17  

Ratios to average daily net assets (%):**

            

Expenses, before waivers and reimbursements

     0.99       1.01       1.05       1.03       1.05       1.05  

Expenses, net of waivers and reimbursements

     0.94       0.97       1.05       1.03       1.05       1.05  

Net investment income (loss), before waivers and reimbursements

     (0.47     (0.36     (0.55     (0.69     (0.61     (0.46

Net investment income (loss), net of waivers and reimbursements

     (0.42     (0.32     (0.55     (0.69     (0.61     (0.46

Class R6 net assets at the end of the period (in thousands)

   $ 445,657     $ 449,782     $ 392,153     $ 328,034     $ 123,220     $ 39,974  

Portfolio turnover rate (%)*

     24       49       49       38       55       56  

 

(a) 

For the period from May 2, 2019 (Commencement of Operations) to December 31, 2019.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

Note: Net investment income (loss) per share is based on the average shares outstanding during the period.

Performance cited represents past performance. Past performance does not guarantee future results and current performance may be lower or higher than the data quoted. Results shown are annual returns, which assume reinvestment of dividends and capital gains. Investment returns and principal will fluctuate and you may have a gain or loss when you sell shares. For the most current month-end performance information, please call 1-800-742-7272 or visit our Web site at www.williamblairfunds.com.

 

See accompanying Notes to Financial Statements.

 

94    Semi-Annual    June 30, 2024


 

Financial Highlights — For a share outstanding throughout each period

 

 

Small-Mid Cap Value Fund

 

     Class I  
     (unaudited)
Period Ended
June 30,
    Period Ended
December 31,
 
     2024     2023(a)  

Net asset value, beginning of period

   $ 10.60     $ 10.00  

Income (loss) from investment operations:

    

Net investment income (loss)

     0.09       0.05  

Net realized and unrealized gain (loss) on investments

     (0.17     0.60  
  

 

 

   

 

 

 

Total from investment operations

     (0.08     0.65  

Less distributions from:

    

Net investment income

           0.05  
  

 

 

   

 

 

 

Total distributions

           0.05  
  

 

 

   

 

 

 

Net asset value, end of period

   $ 10.52     $ 10.60  
  

 

 

   

 

 

 

Total return (%)*

     (0.75     6.45  

Ratios to average daily net assets (%):**

    

Expenses, before waivers and reimbursements

     6.48       10.69  

Expenses, net of waivers and reimbursements

     0.85       0.85  

Net investment income (loss), before waivers and reimbursements

     (4.02     (8.48

Net investment income (loss), net of waivers and reimbursements

     1.61       1.36  

Class I net assets at the end of the period (in thousands)

   $ 116     $ 84  

Portfolio turnover rate (%)*

     29       33  

 

(a) 

For the period from August 17, 2023 (Commencement of Operations) to December 31, 2023.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

     Class R6  
     (unaudited)
Period Ended
June 30,
    Period Ended
December 31,
 
     2024     2023(a)  

Net asset value, beginning of period

   $ 10.60     $ 10.00  

Income (loss) from investment operations:

    

Net investment income (loss)

     0.06       0.05  

Net realized and unrealized gain (loss) on investments

     (0.14     0.60  
  

 

 

   

 

 

 

Total from investment operations

     (0.08     0.65  

Less distributions from:

    

Net investment income

           0.05  
  

 

 

   

 

 

 

Total distributions

           0.05  
  

 

 

   

 

 

 

Net asset value, end of period

   $ 10.52     $ 10.60  
  

 

 

   

 

 

 

Total return (%)*

     (0.75     6.50  

Ratios to average daily net assets (%):**

    

Expenses, before waivers and reimbursements

     6.45       10.66  

Expenses, net of waivers and reimbursements

     0.80       0.80  

Net investment income (loss), before waivers and reimbursements

     (4.45     (8.49

Net investment income (loss), net of waivers and reimbursements

     1.20       1.37  

Class R6 net assets at the end of the period (in thousands)

   $ 2,574     $ 1,497  

Portfolio turnover rate (%)*

     29       33  

 

(a) 

For the period from August 17, 2023 (Commencement of Operations) to December 31, 2023.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

See accompanying Notes to Financial Statements.

 

June 30, 2024    William Blair Funds    95


 

Financial Highlights — For a share outstanding throughout each period

 

 

Small-Mid Cap Value Fund (continued)

Note: Net investment income (loss) per share is based on the average shares outstanding during the period.

Performance cited represents past performance. Past performance does not guarantee future results and current performance may be lower or higher than the data quoted. Results shown are annual returns, which assume reinvestment of dividends and capital gains. Investment returns and principal will fluctuate and you may have a gain or loss when you sell shares. For the most current month-end performance information, please call 1-800-742-7272 or visit our Web site at www.williamblairfunds.com.

 

See accompanying Notes to Financial Statements.

 

96    Semi-Annual    June 30, 2024


 

Financial Highlights — For a share outstanding throughout each period

 

 

Small Cap Growth Fund

 

     Class N  
     (unaudited)
Period Ended
June 30,
    Years Ended December 31,  
     2024     2023     2022     2021     2020     2019  

Net asset value, beginning of period

   $ 27.36     $ 24.01     $ 31.90     $ 34.49     $ 27.75     $ 23.23  

Income (loss) from investment operations:

            

Net investment income (loss)

     (0.10     (0.18     (0.27     (0.45     (0.29     (0.24

Net realized and unrealized gain (loss) on investments

     2.22       4.03       (6.61     4.56       10.86       5.40  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     2.12       3.85       (6.88     4.11       10.57       5.16  

Less distributions from:

            

Net realized gain

           0.50       1.01       6.70       3.83       0.64  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

           0.50       1.01       6.70       3.83       0.64  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 29.48     $ 27.36     $ 24.01     $ 31.90     $ 34.49     $ 27.75  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     7.71       16.06       (21.59     12.91       38.32       22.26  

Ratios to average daily net assets (%):**

            

Expenses, before waivers and reimbursements

     1.38       1.46       1.55       1.56       1.58       1.54  

Expenses, net of waivers and reimbursements

     1.24       1.33       1.50       1.50       1.50       1.50  

Net investment income (loss), before waivers and reimbursements

     (0.83     (0.83     (1.08     (1.24     (1.10     (0.92

Net investment income (loss), net of waivers and reimbursements

     (0.69     (0.70     (1.03     (1.18     (1.02     (0.88

Class N net assets at the end of the period (in thousands)

   $ 128,026     $ 122,370     $ 114,324     $ 179,739     $ 180,635     $ 180,706  

Portfolio turnover rate (%)*

     29       55       45       49       71       51  

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

     Class I  
     (unaudited)
Period Ended
June 30,
    Years Ended December 31,  
     2024     2023     2022     2021     2020     2019  

Net asset value, beginning of period

   $ 32.64     $ 28.49     $ 37.52     $ 39.36     $ 31.19     $ 25.99  

Income (loss) from investment operations:

            

Net investment income (loss)

     (0.07     (0.13     (0.24     (0.41     (0.24     (0.19

Net realized and unrealized gain (loss) on investments

     2.63       4.78       (7.78     5.27       12.24       6.03  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     2.56       4.65       (8.02     4.86       12.00       5.84  

Less distributions from:

            

Net realized gain

           0.50       1.01       6.70       3.83       0.64  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

           0.50       1.01       6.70       3.83       0.64  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 35.20     $ 32.64     $ 28.49     $ 37.52     $ 39.36     $ 31.19  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     7.84       16.35       (21.39     13.22       38.68       22.51  

Ratios to average daily net assets (%):**

            

Expenses, before waivers and reimbursements

     1.11       1.18       1.28       1.25       1.30       1.27  

Expenses, net of waivers and reimbursements

     0.99       1.07       1.25       1.25       1.25       1.25  

Net investment income (loss), before waivers and reimbursements

     (0.55     (0.54     (0.81     (0.93     (0.82     (0.65

Net investment income (loss), net of waivers and reimbursements

     (0.43     (0.43     (0.78     (0.93     (0.77     (0.63

Class I net assets at the end of the period (in thousands)

   $ 484,640     $ 445,483     $ 303,016     $ 402,629     $ 390,511     $ 423,881  

Portfolio turnover rate (%)*

     29       55       45       49       71       51  

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

See accompanying Notes to Financial Statements.

 

June 30, 2024    William Blair Funds    97


 

Financial Highlights — For a share outstanding throughout each period

 

 

Small Cap Growth Fund (continued)

 

     Class R6  
     (unaudited)
Period Ended
June 30,
    Years Ended December 31,  
     2024     2023     2022     2021     2020     2019(a)  

Net asset value, beginning of period

   $ 32.76     $ 28.57     $ 37.60     $ 39.40     $ 31.20     $ 31.00  

Income (loss) from investment operations:

            

Net investment income (loss)

     (0.06     (0.12     (0.21     (0.37     (0.23     (0.11

Net realized and unrealized gain (loss) on investments

     2.64       4.81       (7.81     5.27       12.26       0.95  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     2.58       4.69       (8.02     4.90       12.03       0.84  

Less distributions from:

            

Net realized gain

           0.50       1.01       6.70       3.83       0.64  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

           0.50       1.01       6.70       3.83       0.64  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 35.34     $ 32.76     $ 28.57     $ 37.60     $ 39.40     $ 31.20  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     7.88       16.44       (21.35     13.31       38.76       2.75  

Ratios to average daily net assets (%):**

            

Expenses, before waivers and reimbursements

     1.00       1.06       1.18       1.16       1.19       1.18  

Expenses, net of waivers and reimbursements

     0.94       1.02       1.18       1.16       1.19       1.18  

Net investment income (loss), before waivers and reimbursements

     (0.44     (0.42     (0.70     (0.84     (0.71     (0.51

Net investment income (loss), net of waivers and reimbursements

     (0.38     (0.38     (0.70     (0.84     (0.71     (0.51

Class R6 net assets at the end of the period (in thousands)

   $ 209,951     $ 180,058     $ 112,497     $ 127,710     $ 103,462     $ 69,950  

Portfolio turnover rate (%)*

     29       55       45       49       71       51  

 

(a)

For the period from May 2, 2019 (Commencement of Operations) to December 31, 2019.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

Note: Net investment income (loss) per share is based on the average shares outstanding during the period.

Performance cited represents past performance. Past performance does not guarantee future results and current performance may be lower or higher than the data quoted. Results shown are annual returns, which assume reinvestment of dividends and capital gains. Investment returns and principal will fluctuate and you may have a gain or loss when you sell shares. For the most current month-end performance information, please call 1-800-742-7272 or visit our Web site at www.williamblairfunds.com.

 

See accompanying Notes to Financial Statements.

 

98    Semi-Annual    June 30, 2024


 

Financial Highlights — For a share outstanding throughout each period

 

 

Small Cap Value Fund

 

     Class N  
     (unaudited)
Period Ended
June 30,
    Years Ended
December 31,
    Period Ended
December 31,
    Period Ended
October 31,
 
     2024     2023      2022     2021(b)     2021(a)  

Net Asset Value, beginning of period

   $ 29.78     $ 27.76      $ 33.63     $ 33.49     $ 32.15  

Income (loss) from investment operations:

           

Net investment income (loss)

     0.11       0.21        0.15       0.00 ^      0.05  

Net realized and unrealized gain (loss) on investments

     (0.72     2.72        (3.98     1.37       1.29  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

 

Total from investment operations

     (0.61     2.93        (3.83     1.37       1.34  

Less distributions from:

           

Net investment income

           0.18        0.12              

Net realized gain

           0.73        1.92       1.23        
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

 

Total distributions

           0.91        2.04       1.23        
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 29.17     $ 29.78      $ 27.76     $ 33.63     $ 33.49  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

 

Total return (%)*

     (2.05     10.59        (11.36     4.24       4.17  

Ratios to average daily net assets (%):**

           

Expenses, before waivers and reimbursements

     1.15       1.11        1.15       1.26       1.17  

Expenses, net of waivers and reimbursements

     1.15       1.11        1.15       1.15       1.15  

Net investment income (loss), before waivers and reimbursements

     0.78       0.76        0.48       (0.05     0.51  

Net investment income (loss), net of waivers and reimbursements

     0.78       0.76        0.48       0.06       0.53  

Class N net assets at the end of the year (in thousands)

   $ 2,441     $ 2,591      $ 2,648     $ 3,313     $ 9,805  

Portfolio turnover rate (%)*

     13       27        25       7       35  

 

(a) 

For the period from July 17, 2021 (Commencement of Operations) to October 31, 2021.

 

(b) 

For the period from November 1, 2021 to December 31, 2021.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

^

Amount is less than $0.005 per share.

 

 

See accompanying Notes to Financial Statements.

 

June 30, 2024    William Blair Funds    99


 

Financial Highlights — For a share outstanding throughout each period

 

 

Small Cap Value Fund (continued)

 

     Class I  
     (unaudited)
Period Ended
June 30,
    Years Ended
December 31,
    Period Ended
December 31,
     Years Ended
October 31,
 
     2024     2023      2022     2021(a)      2021      2020     2019  

Net Asset Value, beginning of period

   $ 29.74     $ 27.72      $ 33.58     $ 33.52      $ 23.79      $ 28.84     $ 31.53  

Income (loss) from investment operations:

                 

Net investment income (loss)

     0.15       0.28        0.22       0.03        0.18        0.09       0.18  

Net realized and unrealized gain (loss) on investments

     (0.73     2.72        (3.96     1.35        12.91        (3.89     1.59  
  

 

 

   

 

 

    

 

 

   

 

 

    

 

 

    

 

 

   

 

 

 

Total from investment operations

     (0.58     3.00        (3.74     1.38        13.09        (3.80     1.77  

Less distributions from:

                 

Net investment income

           0.25        0.20       0.09        0.11        0.07       0.15  

Net realized gain

           0.73        1.92       1.23        3.25        1.18       4.31  
  

 

 

   

 

 

    

 

 

   

 

 

    

 

 

    

 

 

   

 

 

 

Total distributions

           0.98        2.12       1.32        3.36        1.25       4.46  
  

 

 

   

 

 

    

 

 

   

 

 

    

 

 

    

 

 

   

 

 

 

Net asset value, end of period

   $ 29.16     $ 29.74      $ 27.72     $ 33.58      $ 33.52      $ 23.79     $ 28.84  
  

 

 

   

 

 

    

 

 

   

 

 

    

 

 

    

 

 

   

 

 

 

Total return (%)*

     (1.95     10.86        (11.12     4.31        55.32        (13.91     8.60  

Ratios to average daily net assets (%):**

                 

Expenses, before waivers and reimbursements

     0.92       0.92        0.94       0.82        0.86        0.89       0.93  

Expenses, net of waivers and reimbursements

     0.89       0.89        0.89       0.82        0.86        0.89       0.93  

Net investment income (loss), before waivers and reimbursements

     1.02       0.95        0.67       0.55        0.52        0.37       0.63  

Net investment income (loss), net of waivers and reimbursements

     1.05       0.98        0.72       0.55        0.52        0.37       0.63  

Class I net assets at the end of the year (in thousands)

   $ 815,195     $ 813,809      $ 758,104     $ 1,059,157      $ 1,143,150      $ 1,181,409     $ 908,831  

Portfolio turnover rate (%)*

     13       27        25       7        35        27       31  

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

(a) 

For the period from November 1, 2021 to December 31, 2021.

 

See accompanying Notes to Financial Statements.

 

100    Semi-Annual    June 30, 2024


 

Financial Highlights — For a share outstanding throughout each period

 

 

Small Cap Value Fund (continued)

 

     Class R6  
     (unaudited)
Period Ended
June 30,
    Years Ended
December 31,
    Period Ended
December 31,
     Period Ended
October 31,
 
     2024     2023      2022     2021(b)      2021(a)  

Net Asset Value, beginning of period

   $ 29.73     $ 27.71      $ 33.58     $ 33.53      $ 32.15  

Income (loss) from investment operations:

            

Net investment income (loss)

     0.17       0.30        0.26       0.03        0.06  

Net realized and unrealized gain (loss) on investments

     (0.73     2.73        (3.98     1.35        1.32  
  

 

 

   

 

 

    

 

 

   

 

 

    

 

 

 

Total from investment operations

     (0.56     3.03        (3.72     1.38        1.38  

Less distributions from:

            

Net investment income

           0.28        0.23       0.10         

Net realized gain

           0.73        1.92       1.23         
  

 

 

   

 

 

    

 

 

   

 

 

    

 

 

 

Total distributions

           1.01        2.15       1.33         
  

 

 

   

 

 

    

 

 

   

 

 

    

 

 

 

Net asset value, end of period

   $ 29.17     $ 29.73      $ 27.71     $ 33.58      $ 33.53  
  

 

 

   

 

 

    

 

 

   

 

 

    

 

 

 

Total return (%)*

     (1.88     10.96        (11.06     4.33        4.26  

Ratios to average daily net assets (%):**

            

Expenses

     0.79       0.79        0.81       0.78        0.78  

Net investment income (loss)

     1.15       1.08        0.85       0.59        0.64  

Class R6 net assets at the end of the year (in thousands)

   $ 498,334     $ 491,646      $ 453,456     $ 1,006,928      $ 867,272  

Portfolio turnover rate (%)*

     13       27        25       7        35  

 

(a)

For the period from July 17, 2021 (Commencement of Operations) to October 31, 2021.

 

(b) 

For the period from November 1, 2021 to December 31, 2021.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

On July 16, 2021, Small Cap Value Fund (the Fund) acquired the assets and assumed the liabilities of the ICM Small Company Portfolio (the “Predecessor Fund”), a series of The Advisors’ Inner Circle Fund, in a reorganization (the “Reorganization”). In the Reorganization, former shareholders of the Predecessor Fund received Class I shares of the Fund. The Predecessor Fund was advised by Investment Counselors of Maryland, LLC, which was acquired by the Adviser. The Predecessor Fund’s (Institutional Class shares) performance and financial history have been adopted by Class I shares of the Fund following the Reorganization and are being used going forward from the date of the Reorganization. The performance of Class I shares of the Fund therefore reflects the performance of the Predecessor Fund prior to the Reorganization. The performance of the Predecessor Fund has not been restated to reflect the annual operating expenses of Class I shares of the Fund, which were different than those of the Predecessor Fund. Because the Fund had different fees and expenses than the Predecessor Fund, the Predecessor Fund would therefore have had different performance results if it was subject to the Fund’s fees and expenses.

Note: Net investment income (loss) per share is based on the average shares outstanding during the period.

Performance cited represents past performance. Past performance does not guarantee future results and current performance may be lower or higher than the data quoted. Results shown are annual returns, which assume reinvestment of dividends and capital gains. Investment returns and principal will fluctuate and you may have a gain or loss when you sell shares. For the most current month-end performance information, please call 1-800-742-7272 or visit our Web site at www.williamblairfunds.com.

 

See accompanying Notes to Financial Statements.

 

June 30, 2024    William Blair Funds    101


 

Financial Highlights — For a share outstanding throughout each period

 

 

Global Leaders Fund

 

     Class N  
     (unaudited)
Period Ended
June 30,
    Years Ended December 31,  
     2024     2023     2022     2021     2020     2019  

Net asset value, beginning of period

   $ 15.21     $ 13.24     $ 19.17     $ 17.41     $ 14.92     $ 11.47  

Income (loss) from investment operations:

            

Net investment income (loss)

     0.00 ^      (0.02     (0.04     (0.11     (0.06     0.01  

Net realized and unrealized gain (loss) on investments

     1.21       3.01       (5.61     2.96       4.74       3.61  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     1.21       2.99       (5.65     2.85       4.68       3.62  

Less distributions from:

            

Net investment income

                                   0.03  

Net realized gain

           1.02       0.28       1.09       2.19       0.14  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

           1.02       0.28       1.09       2.19       0.17  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 16.42     $ 15.21     $ 13.24     $ 19.17     $ 17.41     $ 14.92  
  

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     7.96       22.67       (29.49     16.55       31.50       31.57  

Ratios to average daily net assets (%):**

            

Expenses, before waivers and reimbursements

     1.43       1.42       1.45       1.38       1.45       1.39  

Expenses, net of waivers and reimbursements

     1.15       1.15       1.15       1.15       1.15       1.20  

Net investment income (loss), before waivers and reimbursements

     (0.22     (0.43     (0.60     (0.79     (0.67     (0.10

Net investment income (loss), net of waivers and reimbursements

     0.06       (0.16     (0.30     (0.56     (0.37     0.09  

Class N net assets at the end of the period (in thousands)

   $ 9,054     $ 8,253     $ 8,317     $ 13,709     $ 11,861     $ 8,910  

Portfolio turnover rate (%)*

     22       36       15       18       27       27  

 

^

Amount is less than $0.005 per share.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

    Class I  
    (unaudited)
Period Ended
June 30,
    Years Ended December 31,  
    2024     2023     2022     2021     2020     2019  

Net asset value, beginning of period

  $ 15.38     $ 13.35     $ 19.28     $ 17.47     $ 14.93     $ 11.47  

Income (loss) from investment operations:

           

Net investment income (loss)

    0.02       0.01       (0.01     (0.06     (0.01     0.05  

Net realized and unrealized gain (loss) on investments

    1.22       3.05       (5.63     2.96       4.74       3.61  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

    1.24       3.06       (5.64     2.90       4.73       3.66  

Less distributions from:

           

Net investment income

          0.01       0.01             0.00 ^      0.06  

Net realized gain

          1.02       0.28       1.09       2.19       0.14  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

          1.03       0.29       1.09       2.19       0.20  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

  $ 16.62     $ 15.38     $ 13.35     $ 19.28     $ 17.47     $ 14.93  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

    8.06       22.99       (29.28     16.78       31.86       31.96  

Ratios to average daily net assets (%):**

           

Expenses, before waivers and reimbursements

    1.13       1.14       1.12       1.07       1.12       1.07  

Expenses, net of waivers and reimbursements

    0.90       0.90       0.90       0.90       0.90       0.95  

Net investment income (loss), before waivers and reimbursements

    0.07       (0.17     (0.27     (0.49     (0.31     0.22  

Net investment income (loss), net of waivers and reimbursements

    0.30       0.07       (0.05     (0.32     (0.09     0.34  

Class I net assets at the end of the period (in thousands)

  $ 79,302     $ 76,915     $ 69,987     $ 124,488     $ 107,375     $ 114,666  

Portfolio turnover rate (%)*

    22       36       15       18       27       27  

 

^

Amount is less than $0.005 per share.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

See accompanying Notes to Financial Statements.

 

102    Semi-Annual    June 30, 2024


 

Financial Highlights — For a share outstanding throughout each period

 

 

Global Leaders Fund (continued)

 

    Class R6  
    (unaudited)
Period Ended
June 30,
    Years Ended December 31,  
    2024     2023     2022     2021     2020     2019  

Net asset value, beginning of period

  $ 15.39     $ 13.35     $ 19.30     $ 17.47     $ 14.93     $ 11.47  

Income (loss) from investment operations:

           

Net investment income (loss)

    0.03       0.02       (0.01     (0.05     0.02       0.06  

Net realized and unrealized gain (loss) on investments

    1.21       3.05       (5.64     2.97       4.72       3.61  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

    1.24       3.07       (5.65     2.92       4.74       3.67  

Less distributions from:

           

Net investment income

          0.01       0.02             0.01       0.07  

Net realized gain

          1.02       0.28       1.09       2.19       0.14  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

          1.03       0.30       1.09       2.20       0.21  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

  $ 16.63     $ 15.39     $ 13.35     $ 19.30     $ 17.47     $ 14.93  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

    8.06       23.13       (29.30     16.90       31.91       32.02  

Ratios to average daily net assets (%):**

           

Expenses, before waivers and reimbursements

    1.05       1.05       1.05       0.99       1.06       1.01  

Expenses, net of waivers and reimbursements

    0.85       0.85       0.85       0.85       0.85       0.90  

Net investment income (loss), before waivers and reimbursements

    0.15       (0.08     (0.30     (0.40     (0.10     0.32  

Net investment income (loss), net of waivers and reimbursements

    0.35       0.12       (0.10     (0.26     0.11       0.43  

Class R6 net assets at the end of the period (in thousands)

  $ 15,268     $ 15,287     $ 13,255     $ 5,585     $ 2,946     $ 48,133  

Portfolio turnover rate (%)*

    22       36       15       18       27       27  

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

Note: Net investment income (loss) per share is based on the average shares outstanding during the period.

Performance cited represents past performance. Past performance does not guarantee future results and current performance may be lower or higher than the data quoted. Results shown are annual returns, which assume reinvestment of dividends and capital gains. Investment returns and principal will fluctuate and you may have a gain or loss when you sell shares. For the most current month-end performance information, please call 1-800-742-7272 or visit our Web site at www.williamblairfunds.com.

 

See accompanying Notes to Financial Statements.

 

June 30, 2024    William Blair Funds    103


 

Financial Highlights — For a share outstanding throughout each period

 

 

International Leaders Fund

 

     Class N  
     (unaudited)
Period Ended
June 30,
     Years Ended December 31,  
     2024      2023      2022     2021     2020     2019  

Net asset value, beginning of period

   $ 19.45      $ 17.28      $ 24.28     $ 22.69     $ 18.08     $ 13.80  

Income (loss) from investment operations:

              

Net investment income (loss)

     0.07        0.05        0.04       (0.12     (0.04     0.09  

Net realized and unrealized gain (loss) on investments

     1.06        2.16        (7.01     2.35       4.82       4.25  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     1.13        2.21        (6.97     2.23       4.78       4.34  

Less distributions from:

              

Net investment income

            0.04              0.00 ^            0.06  

Net realized gain

                   0.03       0.64       0.17        
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

            0.04        0.03       0.64       0.17       0.06  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 20.58      $ 19.45      $ 17.28     $ 24.28     $ 22.69     $ 18.08  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     5.81        12.77        (28.70     9.93       26.45       31.46  

Ratios to average daily net assets (%):**

              

Expenses, before waivers and reimbursements

     1.24        1.26        1.26       1.30       1.31       1.32  

Expenses, net of waivers and reimbursements

     1.15        1.15        1.15       1.15       1.15       1.18  

Net investment income (loss), before waivers and reimbursements

     0.65        0.17        0.09       (0.65     (0.39     0.44  

Net investment income (loss), net of waivers and reimbursements

     0.74        0.28        0.20       (0.50     (0.23     0.58  

Class N net assets at the end of the period (in thousands)

   $ 31,340      $ 34,162      $ 35,966     $ 47,234     $ 19,586     $ 11,163  

Portfolio turnover rate (%)*

     27        50        55       18       34       20  

 

^

Amount is less than $0.005 per share.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

    Class I  
    (unaudited)
Period Ended
June 30,
    Years Ended December 31,  
    2024     2023     2022     2021     2020     2019  

Net asset value, beginning of period

  $ 19.60     $ 17.41     $ 24.41     $ 22.80     $ 18.13     $ 13.84  

Income (loss) from investment operations:

           

Net investment income (loss)

    0.10       0.10       0.08       (0.06     (0.00 )^      0.12  

Net realized and unrealized gain (loss) on investments

    1.07       2.18       (7.05     2.36       4.85       4.27  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

    1.17       2.28       (6.97     2.30       4.85       4.39  

Less distributions from:

           

Net investment income

          0.09             0.05       0.01       0.10  

Net realized gain

                0.03       0.64       0.17        
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

          0.09       0.03       0.69       0.18       0.10  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

  $ 20.77     $ 19.60     $ 17.41     $ 24.41     $ 22.80     $ 18.13  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

    5.97       13.09       (28.55     10.17       26.77       31.76  

Ratios to average daily net assets (%):**

           

Expenses, before waivers and reimbursements

    1.02       1.04       1.04       0.99       1.01       1.01  

Expenses, net of waivers and reimbursements

    0.90       0.90       0.90       0.90       0.90       0.93  

Net investment income (loss), before waivers and reimbursements

    0.91       0.39       0.28       (0.33     (0.11     0.64  

Net investment income (loss), net of waivers and reimbursements

    1.03       0.53       0.42       (0.24     (0.00     0.72  

Class I net assets at the end of the period (in thousands)

  $ 527,432     $ 413,373     $ 369,171     $ 591,500     $ 393,596     $ 181,617  

Portfolio turnover rate (%)*

    27       50       55       18       34       20  

 

^

Amount is less than $0.005 per share.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

See accompanying Notes to Financial Statements.

 

104    Semi-Annual    June 30, 2024


 

Financial Highlights — For a share outstanding throughout each period

 

 

International Leaders Fund (continued)

 

     Class R6  
     (unaudited)
Period Ended
June 30,
     Years Ended December 31,  
     2024      2023      2022     2021     2020      2019  

Net asset value, beginning of period

   $ 19.62      $ 17.42      $ 24.41     $ 22.80     $ 18.12      $ 13.83  

Income (loss) from investment operations:

               

Net investment income (loss)

     0.11        0.11        0.09       (0.04     0.02        0.14  

Net realized and unrealized gain (loss) on investments

     1.06        2.19        (7.05     2.35       4.85        4.26  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

    

 

 

 

Total from investment operations

     1.17        2.30        (6.96     2.31       4.87        4.40  

Less distributions from:

               

Net investment income

            0.10              0.06       0.02        0.11  

Net realized gain

                   0.03       0.64       0.17         
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

    

 

 

 

Total distributions

            0.10        0.03       0.70       0.19        0.11  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

    

 

 

 

Net asset value, end of period

   $ 20.79      $ 19.62      $ 17.42     $ 24.41     $ 22.80      $ 18.12  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

    

 

 

 

Total return (%)*

     5.96        13.20        (28.51     10.22       26.88        31.83  

Ratios to average daily net assets (%):**

               

Expenses, before waivers and reimbursements

     0.91        0.91        0.92       0.91       0.92        0.93  

Expenses, net of waivers and reimbursements

     0.85        0.85        0.85       0.85       0.85        0.88  

Net investment income (loss), before waivers and reimbursements

     0.99        0.52        0.44       (0.24     0.03        0.80  

Net investment income (loss), net of waivers and reimbursements

     1.05        0.58        0.51       (0.18     0.10        0.85  

Class R6 net assets at the end of the period (in thousands)

   $ 614,025      $ 636,401      $ 599,084     $ 667,996     $ 687,171      $ 461,124  

Portfolio turnover rate (%)*

     27        50        55       18       34        20  

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

Note: Net investment income (loss) per share is based on the average shares outstanding during the period.

Performance cited represents past performance. Past performance does not guarantee future results and current performance may be lower or higher than the data quoted. Results shown are annual returns, which assume reinvestment of dividends and capital gains. Investment returns and principal will fluctuate and you may have a gain or loss when you sell shares. For the most current month-end performance information, please call 1-800-742-7272 or visit our Web site at www.williamblairfunds.com.

 

See accompanying Notes to Financial Statements.

 

June 30, 2024    William Blair Funds    105


 

Financial Highlights — For a share outstanding throughout each period

 

 

International Growth Fund

 

     Class N  
     (unaudited)
Period Ended
June 30,
     Years Ended December 31,  
     2024      2023      2022     2021     2020     2019  

Net asset value, beginning of period

   $ 27.73      $ 24.92      $ 37.57     $ 38.75     $ 29.68     $ 23.04  

Income (loss) from investment operations:

              

Net investment income (loss)

     0.10        0.14        0.11       (0.28     (0.16     0.09  

Net realized and unrealized gain (loss) on investments

     1.14        3.61        (10.78     3.51       9.55       6.87  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     1.24        3.75        (10.67     3.23       9.39       6.96  

Less distributions from:

              

Net investment income

            0.19        0.02             0.06       0.32  

Net realized gain

            0.75        1.96       4.41       0.26        
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

            0.94        1.98       4.41       0.32       0.32  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 28.97      $ 27.73      $ 24.92     $ 37.57     $ 38.75     $ 29.68  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     4.47        15.12        (28.51     8.68       31.64       30.24  

Ratios to average daily net assets (%):**

              

Expenses, before waivers and reimbursements

     1.40        1.39        1.40       1.46       1.47       1.45  

Expenses, net of waivers and reimbursements

     1.24        1.24        1.31       1.45       1.45       1.45  

Net investment income (loss), before waivers and reimbursements

     0.51        0.36        0.30       (0.68     (0.56     0.34  

Net investment income (loss), net of waivers and reimbursements

     0.67        0.51        0.39       (0.67     (0.54     0.34  

Class N net assets at the end of the period (in thousands)

   $ 290,777      $ 292,273      $ 301,485     $ 293,481     $ 288,976     $ 494,788  

Portfolio turnover rate (%)*

     18        42        50       19       27       34  

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

See accompanying Notes to Financial Statements.

 

106    Semi-Annual    June 30, 2024


 

Financial Highlights — For a share outstanding throughout each period

 

 

International Growth Fund (continued)

 

    Class I  
    (unaudited)
Period Ended
June 30,
    Years Ended December 31,  
    2024     2023     2022     2021     2020     2019  

Net asset value, beginning of period

  $ 28.67     $ 25.74     $ 38.68     $ 39.65     $ 30.38     $ 23.56  

Income (loss) from investment operations:

           

Net investment income (loss)

    0.14       0.21       0.24       (0.15     (0.08     0.18  

Net realized and unrealized gain (loss) on investments

    1.18       3.73       (11.16     3.59       9.79       7.03  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

    1.32       3.94       (10.92     3.44       9.71       7.21  

Less distributions from:

           

Net investment income

          0.26       0.06             0.18       0.39  

Net realized gain

          0.75       1.96       4.41       0.26        
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

          1.01       2.02       4.41       0.44       0.39  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

  $ 29.99     $ 28.67     $ 25.74     $ 38.68     $ 39.65     $ 30.38  
 

 

 

   

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

    4.60       15.38       (28.33     9.01       31.99       30.66  

Ratios to average daily net assets (%):**

           

Expenses, before waivers and reimbursements

    1.10       1.10       1.12       1.14       1.16       1.14  

Expenses, net of waivers and reimbursements

    0.99       0.99       1.06       1.14       1.16       1.14  

Net investment income (loss), before waivers and reimbursements

    0.82       0.65       0.76       (0.36     (0.24     0.65  

Net investment income (loss), net of waivers and reimbursements

    0.93       0.76       0.82       (0.36     (0.24     0.65  

Class I net assets at the end of the period (in thousands)

  $ 1,036,028     $ 992,759     $ 981,813     $ 1,702,775     $ 1,914,460     $ 1,552,355  

Portfolio turnover rate (%)*

    18       42       50       19       27       34  

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

See accompanying Notes to Financial Statements.

 

June 30, 2024    William Blair Funds    107


 

Financial Highlights — For a share outstanding throughout each period

 

 

International Growth Fund (continued)

 

     Class R6  
     (unaudited)
Period Ended
June 30,
     Years Ended December 31,  
     2024      2023      2022     2021     2020     2019(a)  

Net asset value, beginning of period

   $ 28.70      $ 25.76      $ 38.72     $ 39.66     $ 30.37     $ 27.56  

Income (loss) from investment operations:

              

Net investment income (loss)

     0.14        0.23        0.21       (0.11     (0.07     (0.05

Net realized and unrealized gain (loss) on investments

     1.18        3.73        (11.13     3.58       9.83       3.27  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     1.32        3.96        (10.92     3.47       9.76       3.22  

Less distributions from:

              

Net investment income

            0.27        0.08             0.21       0.41  

Net realized gain

            0.75        1.96       4.41       0.26        
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

            1.02        2.04       4.41       0.47       0.41  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 30.02      $ 28.70      $ 25.76     $ 38.72     $ 39.66     $ 30.37  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     4.60        15.47        (28.30     9.09       32.16       11.71  

Ratios to average daily net assets (%):**

              

Expenses, before waivers and reimbursements

     1.00        1.00        1.03       1.06       1.07       1.06  

Expenses, net of waivers and reimbursements

     0.94        0.94        1.01       1.06       1.07       1.06  

Net investment income (loss), before waivers and reimbursements

     0.92        0.76        0.69       (0.25     (0.23     (0.26

Net investment income (loss), net of waivers and reimbursements

     0.98        0.82        0.71       (0.25     (0.23     (0.26

Class R6 net assets at the end of the period (in thousands)

   $ 148,789      $ 146,072      $ 151,338     $ 126,641     $ 109,214     $ 61,916  

Portfolio turnover rate (%)*

     18        42        50       19       27       34  

 

(a) 

For the period from May 2, 2019 (Commencement of Operations) to December 31, 2019.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

Note: Net investment income (loss) per share is based on the average shares outstanding during the period.

Performance cited represents past performance. Past performance does not guarantee future results and current performance may be lower or higher than the data quoted. Results shown are annual returns, which assume reinvestment of dividends and capital gains. Investment returns and principal will fluctuate and you may have a gain or loss when you sell shares. For the most current month-end performance information, please call 1-800-742-7272 or visit our Web site at www.williamblairfunds.com.

 

See accompanying Notes to Financial Statements.

 

108    Semi-Annual    June 30, 2024


 

Financial Highlights — For a share outstanding throughout each period

 

 

Institutional International Growth Fund

 

     Institutional  
     (unaudited)
Period Ended
June 30,
     Years Ended December 31,  
     2024      2023      2022     2021     2020     2019  

Net asset value, beginning of period

   $ 14.40      $ 12.82      $ 19.03     $ 20.37     $ 17.35     $ 13.40  

Income (loss) from investment operations:

              

Net investment income (loss)

     0.07        0.09        0.11       (0.05     (0.01     0.12  

Net realized and unrealized gain (loss) on investments

     0.59        1.85        (5.47     1.86       5.60       4.00  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     0.66        1.94        (5.36     1.81       5.59       4.12  

Less distributions from:

              

Net investment income

            0.13        0.06             0.02       0.17  

Net realized gain

            0.23        0.79       3.15       2.55        
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

            0.36        0.85       3.15       2.57       0.17  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 15.06      $ 14.40      $ 12.82     $ 19.03     $ 20.37     $ 17.35  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     4.58        15.20        (28.28     9.39       32.47       30.75  

Ratios to average daily net assets (%):**

              

Expenses, before waivers and reimbursements

     1.00        1.00        1.01       1.01       1.00       0.99  

Expenses, net of waivers and reimbursements

     0.94        0.94        0.98       1.01       1.00       0.99  

Net investment income (loss), before waivers and reimbursements

     0.92        0.61        0.71       (0.22     (0.04     0.77  

Net investment income (loss), net of waivers and reimbursements

     0.98        0.67        0.74       (0.22     (0.04     0.77  

Net assets at the end of the period (in thousands)

   $ 972,862      $ 929,474      $ 908,732     $ 1,281,843     $ 1,326,482     $ 1,892,911  

Portfolio turnover rate (%)*

     19        44        55       19       31       35  

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

Note: Net investment income (loss) per share is based on the average shares outstanding during the period.

Performance cited represents past performance. Past performance does not guarantee future results and current performance may be lower or higher than the data quoted. Results shown are annual returns, which assume reinvestment of dividends and capital gains. Investment returns and principal will fluctuate and you may have a gain or loss when you sell shares. For the most current month-end performance information, please call 1-800-742-7272 or visit our Web site at www.williamblairfunds.com.

 

See accompanying Notes to Financial Statements.

 

June 30, 2024    William Blair Funds    109


 

Financial Highlights — For a share outstanding throughout each period

 

 

International Small Cap Growth Fund

 

     Class N  
     (unaudited)
Period Ended
June 30,
    Years Ended December 31,  
     2024     2023      2022     2021     2020     2019  

Net asset value, beginning of period

   $ 12.21     $ 10.74      $ 16.56     $ 17.45     $ 13.85     $ 10.36  

Income (loss) from investment operations:

             

Net investment income (loss)

     0.03       0.04        0.00 ^      (0.12     (0.05     0.05  

Net realized and unrealized gain (loss) on investments

     (0.30     1.51        (5.82     1.91       4.01       3.45  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     (0.27     1.55        (5.82     1.79       3.96       3.50  

Less distributions from:

             

Net investment income

           0.08                          0.01  

Net realized gain

                        2.68       0.36        
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

           0.08              2.68       0.36       0.01  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 11.94     $ 12.21      $ 10.74     $ 16.56     $ 17.45     $ 13.85  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     (2.21     14.42        (35.14     10.87       28.68       33.81  

Ratios to average daily net assets (%):**

             

Expenses, before waivers and reimbursements

     1.52       1.53        1.49       1.46       1.52       1.48  

Expenses, net of waivers and reimbursements

     1.35       1.42        1.49       1.46       1.52       1.48  

Net investment income (loss), before waivers and reimbursements

     0.39       0.28        0.04       (0.67     (0.36     0.45  

Net investment income (loss), net of waivers and reimbursements

     0.56       0.39        0.04       (0.67     (0.36     0.45  

Class N net assets at the end of the period (in thousands)

   $ 1,400     $ 1,547      $ 1,638     $ 3,540     $ 3,101     $ 3,650  

Portfolio turnover rate (%)*

     23       37        51       52       63       38  

 

^

Amount is less than $0.005 per share.

*

Not annualized for periods less than a year.

**

Annualized for periods less than a year.

 

     Class I  
     (unaudited)
Period Ended
June 30,
    Years Ended December 31,  
     2024     2023      2022     2021     2020     2019  

Net asset value, beginning of period

   $ 12.40     $ 10.90      $ 16.80     $ 17.66     $ 13.98     $ 10.45  

Income (loss) from investment operations:

             

Net investment income (loss)

     0.05       0.07        0.03       (0.07     (0.01     0.09  

Net realized and unrealized gain (loss) on investments

     (0.32     1.54        (5.91     1.93       4.06       3.48  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     (0.27     1.61        (5.88     1.86       4.05       3.57  

Less distributions from:

             

Net investment income

           0.11        0.02       0.04       0.01       0.04  

Net realized gain

                        2.68       0.36        
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

           0.11        0.02       2.72       0.37       0.04  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 12.13     $ 12.40      $ 10.90     $ 16.80     $ 17.66     $ 13.98  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     (2.10     14.70        (34.99     11.17       29.04       34.22  

Ratios to average daily net assets (%):**

             

Expenses, before waivers and reimbursements

     1.23       1.25        1.23       1.19       1.25       1.21  

Expenses, net of waivers and reimbursements

     1.10       1.17        1.23       1.19       1.25       1.21  

Net investment income (loss), before waivers and reimbursements

     0.70       0.54        0.28       (0.40     (0.05     0.75  

Net investment income (loss), net of waivers and reimbursements

     0.83       0.62        0.28       (0.40     (0.05     0.75  

Class I net assets at the end of the period (in thousands)

   $ 88,853     $ 103,520      $ 98,330     $ 136,573     $ 145,283     $ 142,951  

Portfolio turnover rate (%)*

     23       37        51       52       63       38  

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

See accompanying Notes to Financial Statements.

 

110    Semi-Annual    June 30, 2024


 

Financial Highlights — For a share outstanding throughout each period

 

 

International Small Cap Growth Fund (continued)

 

     Class R6  
     (unaudited)
Period Ended
June 30,
    Years Ended December 31,  
     2024     2023      2022     2021     2020     2019  

Net asset value, beginning of period

   $ 12.47     $ 10.97      $ 16.91     $ 17.76     $ 14.05     $ 10.50  

Income (loss) from investment operations:

             

Net investment income (loss)

     0.05       0.08        0.05       (0.06     0.00 ^      0.11  

Net realized and unrealized gain (loss) on investments

     (0.30     1.54        (5.96     1.95       4.09       3.49  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     (0.25     1.62        (5.91     1.89       4.09       3.60  

Less distributions from:

             

Net investment income

           0.12        0.03       0.06       0.02       0.05  

Net realized gain

                        2.68       0.36        
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

           0.12        0.03       2.74       0.38       0.05  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 12.22     $ 12.47      $ 10.97     $ 16.91     $ 17.76     $ 14.05  
  

 

 

   

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     (2.09     14.76        (34.94     11.27       29.23       34.32  

Ratios to average daily net assets (%):**

             

Expenses, before waivers and reimbursements

     1.14       1.15        1.14       1.10       1.14       1.12  

Expenses, net of waivers and reimbursements

     1.05       1.12        1.14       1.10       1.14       1.12  

Net investment income (loss), before waivers and reimbursements

     0.77       0.64        0.38       (0.31     0.02       0.86  

Net investment income (loss), net of waivers and reimbursements

     0.86       0.67        0.38       (0.31     0.02       0.86  

Class R6 net assets at the end of the period (in thousands)

   $ 101,484     $ 135,679      $ 134,982     $ 243,398     $ 188,497     $ 162,465  

Portfolio turnover rate (%)*

     23       37        51       52       63       38  

 

^

Amount is less than $0.005 per share.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

Note: Net investment income (loss) per share is based on the average shares outstanding during the period.

Performance cited represents past performance. Past performance does not guarantee future results and current performance may be lower or higher than the data quoted. Results shown are annual returns, which assume reinvestment of dividends and capital gains. Investment returns and principal will fluctuate and you may have a gain or loss when you sell shares. For the most current month-end performance information, please call 1-800-742-7272 or visit our Web site at www.williamblairfunds.com.

 

See accompanying Notes to Financial Statements.

 

June 30, 2024    William Blair Funds    111


 

Financial Highlights — For a share outstanding throughout each period

 

 

Emerging Markets Leaders Fund

 

     Class N  
     (unaudited)
Period Ended
June 30,
     Years Ended December 31,  
     2024      2023      2022     2021     2020     2019  

Net asset value, beginning of period

   $ 8.72      $ 8.29      $ 11.33     $ 13.26     $ 10.51     $ 8.26  

Income (loss) from investment operations:

              

Net investment income (loss)

     0.03        0.05        0.02       (0.06     (0.02     0.03  

Net realized and unrealized gain (loss) on investments

     0.35        0.43        (2.98     (0.98     2.88       2.28  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     0.38        0.48        (2.96     (1.04     2.86       2.31  

Less distributions from:

              

Net investment income

            0.05              0.01             0.04  

Net realized gain

                   0.08       0.88       0.11       0.02  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

            0.05        0.08       0.89       0.11       0.06  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 9.10      $ 8.72      $ 8.29     $ 11.33     $ 13.26     $ 10.51  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     4.47        5.85        (26.11     (7.69     27.23       27.98  

Ratios to average daily net assets (%):**

              

Expenses, before waivers and reimbursements

     1.47        1.46        1.48       1.56       1.63       1.62  

Expenses, net of waivers and reimbursements

     1.24        1.24        1.29       1.40       1.40       1.45  

Net investment income (loss), before waivers and reimbursements

     0.47        0.41        0.05       (0.64     (0.45     0.17  

Net investment income (loss), net of waivers and reimbursements

     0.70        0.63        0.24       (0.48     (0.22     0.34  

Class N net assets at the end of the period (in thousands)

   $ 970      $ 1,007      $ 1,092     $ 2,096     $ 1,803     $ 1,856  

Portfolio turnover rate (%)*

     35        44        42       40       47       33  

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

     Class I  
     (unaudited)
Period Ended
June 30,
     Years Ended December 31,  
     2024      2023      2022     2021     2020     2019  

Net asset value, beginning of period

   $ 8.76      $ 8.32      $ 11.33     $ 13.28     $ 10.52     $ 8.27  

Income (loss) from investment operations:

              

Net investment income (loss)

     0.04        0.09        0.06       (0.04     (0.00 )^      0.06  

Net realized and unrealized gain (loss) on investments

     0.35        0.42        (2.99     (0.98     2.89       2.29  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     0.39        0.51        (2.93     (1.02     2.89       2.35  

Less distributions from:

              

Net investment income

            0.07              0.05       0.02       0.08  

Net realized gain

                   0.08       0.88       0.11       0.02  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

            0.07        0.08       0.93       0.13       0.10  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 9.15      $ 8.76      $ 8.32     $ 11.33     $ 13.28     $ 10.52  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     4.45        6.13        (25.84     (7.48     27.52       28.36  

Ratios to average daily net assets (%):**

              

Expenses, before waivers and reimbursements

     1.22        1.18        1.19       1.28       1.33       1.29  

Expenses, net of waivers and reimbursements

     0.99        0.99        1.05       1.15       1.15       1.20  

Net investment income (loss), before waivers and reimbursements

     0.69        0.82        0.46       (0.40     (0.21     0.53  

Net investment income (loss), net of waivers and reimbursements

     0.92        1.01        0.60       (0.27     (0.03     0.62  

Class I net assets at the end of the period (in thousands)

   $ 11,845      $ 13,772      $ 29,682     $ 42,750     $ 62,319     $ 45,090  

Portfolio turnover rate (%)*

     35        44        42       40       47       33  

 

^

Amount is less than $0.005 per share.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

See accompanying Notes to Financial Statements.

 

112    Semi-Annual    June 30, 2024


 

Financial Highlights — For a share outstanding throughout each period

 

 

Emerging Markets Leaders Fund (continued)

 

     Class R6  
     (unaudited)
Period Ended
June 30,
     Years Ended December 31,  
     2024      2023      2022     2021     2020      2019  

Net asset value, beginning of period

   $ 8.75      $ 8.31      $ 11.32     $ 13.26     $ 10.51      $ 8.26  

Income (loss) from investment operations:

               

Net investment income (loss)

     0.04        0.09        0.06       (0.02     0.00 ^       0.06  

Net realized and unrealized gain (loss) on investments

     0.35        0.42        (2.99     (0.98     2.89        2.29  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

    

 

 

 

Total from investment operations

     0.39        0.51        (2.93     (1.00     2.89        2.35  

Less distributions from:

               

Net investment income

            0.07              0.06       0.03        0.08  

Net realized gain

                   0.08       0.88       0.11        0.02  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

    

 

 

 

Total distributions

            0.07        0.08       0.94       0.14        0.10  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

    

 

 

 

Net asset value, end of period

   $ 9.14      $ 8.75      $ 8.31     $ 11.32     $ 13.26      $ 10.51  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

    

 

 

 

Total return (%)*

     4.46        6.22        (25.86     (7.35     27.50        28.45  

Ratios to average daily net assets (%):**

               

Expenses, before waivers and reimbursements

     1.10        1.08        1.11       1.20       1.26        1.23  

Expenses, net of waivers and reimbursements

     0.94        0.94        1.00       1.10       1.10        1.15  

Net investment income (loss), before waivers and reimbursements

     0.86        0.90        0.50       (0.26     (0.11      0.57  

Net investment income (loss), net of waivers and reimbursements

     1.02        1.04        0.61       (0.16     0.05        0.65  

Class R6 net assets at the end of the period (in thousands)

   $ 190,804      $ 238,806      $ 321,319     $ 428,839     $ 198,015      $ 191,337  

Portfolio turnover rate (%)*

     35        44        42       40       47        33  

 

^

Amount is less than $0.005 per share.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

Note: Net investment income (loss) per share is based on the average shares outstanding during the period.

Performance cited represents past performance. Past performance does not guarantee future results and current performance may be lower or higher than the data quoted. Results shown are annual returns, which assume reinvestment of dividends and capital gains. Investment returns and principal will fluctuate and you may have a gain or loss when you sell shares. For the most current month-end performance information, please call 1-800-742-7272 or visit our Web site at www.williamblairfunds.com.

 

See accompanying Notes to Financial Statements.

 

June 30, 2024    William Blair Funds    113


 

Financial Highlights — For a share outstanding throughout each period

 

 

Emerging Markets Growth Fund

 

     Class N  
     (unaudited)
Period Ended
June 30,
     Years Ended December 31,  
     2024      2023      2022     2021     2020     2019  

Net asset value, beginning of period

   $ 11.35      $ 10.35      $ 15.55     $ 18.42     $ 13.67     $ 11.14  

Income (loss) from investment operations:

              

Net investment income (loss)

     0.03        0.06        0.02       (0.13     (0.09     0.11  

Net realized and unrealized gain (loss) on investments

     1.39        0.97        (5.20     0.62       5.60       2.98  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     1.42        1.03        (5.18     0.49       5.51       3.09  

Less distributions from:

              

Net investment income

            0.03                          0.16  

Net realized gain

                   0.02       3.36       0.76       0.40  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

            0.03        0.02       3.36       0.76       0.56  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 12.77      $ 11.35      $ 10.35     $ 15.55     $ 18.42     $ 13.67  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     12.60        9.99        (33.33     2.97       40.43       27.89  

Ratios to average daily net assets (%):**

              

Expenses, before waivers and reimbursements

     1.43        1.46        1.50       1.55       1.55       1.51  

Expenses, net of waivers and reimbursements

     1.24        1.24        1.36       1.55       1.55       1.51  

Net investment income (loss), before waivers and reimbursements

     0.28        0.38        0.07       (0.65     (0.60     0.84  

Net investment income (loss), net of waivers and reimbursements

     0.47        0.60        0.21       (0.65     (0.60     0.84  

Class N net assets at the end of the period (in thousands)

   $ 14,996      $ 13,748      $ 14,664     $ 28,565     $ 18,606     $ 7,804  

Portfolio turnover rate (%)*

     31        58        92       52       77       79  

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

     Class I  
     (unaudited)
Period Ended
June 30,
     Years Ended December 31,  
     2024      2023      2022     2021     2020     2019  

Net asset value, beginning of period

   $ 11.60      $ 10.58      $ 15.85     $ 18.66     $ 13.82     $ 11.25  

Income (loss) from investment operations:

              

Net investment income ( loss)

     0.04        0.09        0.05       (0.07     (0.05     0.14  

Net realized and unrealized gain (loss) on investments

     1.43        0.99        (5.30     0.62       5.66       3.02  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     1.47        1.08        (5.25     0.55       5.61       3.16  

Less distributions from:

              

Net investment income

            0.06                    0.01       0.19  

Net realized gain

                   0.02       3.36       0.76       0.40  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

            0.06        0.02       3.36       0.77       0.59  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 13.07      $ 11.60      $ 10.58     $ 15.85     $ 18.66     $ 13.82  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     12.67        10.23        (33.14     3.25       40.72       28.29  

Ratios to average daily net assets (%):**

              

Expenses, before waivers and reimbursements

     1.19        1.20        1.24       1.27       1.30       1.26  

Expenses, net of waivers and reimbursements

     0.99        0.99        1.11       1.27       1.30       1.26  

Net investment income (loss), before waivers and reimbursements

     0.53        0.61        0.32       (0.37     (0.33     1.06  

Net investment income (loss), net of waivers and reimbursements

     0.73        0.82        0.45       (0.37     (0.33     1.06  

Class I net assets at the end of the period (in thousands)

   $ 200,511      $ 173,377      $ 174,884     $ 190,985     $ 113,697     $ 73,496  

Portfolio turnover rate (%)*

     31        58        92       52       77       79  

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

See accompanying Notes to Financial Statements.

 

114    Semi-Annual    June 30, 2024


 

Financial Highlights — For a share outstanding throughout each period

 

 

Emerging Markets Growth Fund (continued)

 

     Class R6  
     (unaudited)
Period Ended
June 30,
     Years Ended December 31,  
     2024      2023      2022     2021     2020     2019  

Net asset value, beginning of period

   $ 11.74      $ 10.71      $ 16.04     $ 18.84     $ 13.94     $ 11.35  

Income (loss) from investment operations:

              

Net investment income (loss)

     0.05        0.09        0.06       (0.05     (0.03     0.15  

Net realized and unrealized gain (loss) on investments

     1.45        1.01        (5.37     0.63       5.71       3.04  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     1.50        1.10        (5.31     0.58       5.68       3.19  

Less distributions from:

              

Net investment income

            0.07              0.02       0.02       0.20  

Net realized gain

                   0.02       3.36       0.76       0.40  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

            0.07        0.02       3.38       0.78       0.60  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 13.24      $ 11.74      $ 10.71     $ 16.04     $ 18.84     $ 13.94  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     12.78        10.26        (33.13     3.37       40.90       28.28  

Ratios to average daily net assets (%):**

              

Expenses, before waivers and reimbursements

     1.06        1.08        1.14       1.17       1.20       1.19  

Expenses, net of waivers and reimbursements

     0.94        0.94        1.06       1.17       1.20       1.19  

Net investment income (loss), before waivers and reimbursements

     0.64        0.68        0.41       (0.27     (0.22     1.17  

Net investment income (loss), net of waivers and reimbursements

     0.76        0.82        0.49       (0.27     (0.22     1.17  

Class R6 net assets at the end of the period (in thousands)

   $ 601,251      $ 635,716      $ 480,586     $ 822,288     $ 1,063,433     $ 708,892  

Portfolio turnover rate (%)*

     31        58        92       52       77       79  

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

Note: Net investment income (loss) per share is based on the average shares outstanding during the period.

Performance cited represents past performance. Past performance does not guarantee future results and current performance may be lower or higher than the data quoted. Results shown are annual returns, which assume reinvestment of dividends and capital gains. Investment returns and principal will fluctuate and you may have a gain or loss when you sell shares. For the most current month-end performance information, please call 1-800-742-7272 or visit our Web site at www.williamblairfunds.com.

 

See accompanying Notes to Financial Statements.

 

June 30, 2024    William Blair Funds    115


 

Financial Highlights — For a share outstanding throughout each period

 

 

Emerging Markets ex China Growth Fund

 

     Class I  
     (unaudited)
Period Ended
June 30,
    Year Ended
December 31,
    Period Ended
December 31,
 
     2024     2023     2022(a)  

Net asset value, beginning of period

   $ 11.64     $ 9.41     $ 10.00  

Income (loss) from investment operations:

      

Net investment income (loss)

     0.04       0.08       0.02  

Net realized and unrealized gain (loss) on investments

     1.57       2.25       (0.61
  

 

 

   

 

 

   

 

 

 

Total from investment operations

     1.61       2.33       (0.59

Less distributions from:

      

Net investment income

           0.10        
  

 

 

   

 

 

   

 

 

 

Total distributions

           0.10        
  

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 13.25     $ 11.64     $ 9.41  
  

 

 

   

 

 

   

 

 

 

Total return (%)*

     13.83       24.75       (5.90

Ratios to average daily net assets (%):**

      

Expenses, before waivers and reimbursements

     2.16       2.35       2.77  

Expenses, net of waivers and reimbursements

     0.99       0.99       0.99  

Net investment income (loss), before waivers and reimbursements

     (0.58     (0.58     (1.40

Net investment income (loss), net of waivers and reimbursements

     0.59       0.78       0.38  

Class I net assets at the end of the period (in thousands)

   $ 4,784     $ 2,841     $ 9  

Portfolio turnover rate (%)*

     39       55       64  

 

(a) 

For the period from July 29, 2022 (Commencement of Operations) to December 31, 2022.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

     Class R6  
     (unaudited)
Period Ended
June 30,
    Year Ended
December 31,
    Period Ended
December 31,
 
     2024     2023     2022(a)  

Net asset value, beginning of period

   $ 11.65     $ 9.42     $ 10.00  

Income (loss) from investment operations:

      

Net investment income (loss)

     0.04       0.08       0.02  

Net realized and unrealized gain (loss) on investments

     1.58       2.25       (0.60
  

 

 

   

 

 

   

 

 

 

Total from investment operations

     1.62       2.33       (0.58

Less distributions from:

      

Net investment income

           0.10        
  

 

 

   

 

 

   

 

 

 

Total distributions

           0.10        
  

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 13.27     $ 11.65     $ 9.42  
  

 

 

   

 

 

   

 

 

 

Total return (%)*

     13.91       24.75       (5.80

Ratios to average daily net assets (%):**

      

Expenses, before waivers and reimbursements

     2.07       2.26       2.78  

Expenses, net of waivers and reimbursements

     0.94       0.94       0.94  

Net investment income (loss), before waivers and reimbursements

     (0.49     (0.53     (1.42

Net investment income (loss), net of waivers and reimbursements

     0.64       0.79       0.42  

Class R6 net assets at the end of the period (in thousands)

   $ 20,526     $ 19,169     $ 13,024  

Portfolio turnover rate (%)*

     39       55       64  

 

(a) 

For the period from July 29, 2022 (Commencement of Operations) to December 31, 2022.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

See accompanying Notes to Financial Statements.

 

116    Semi-Annual    June 30, 2024


 

Financial Highlights — For a share outstanding throughout each period

 

 

Emerging Markets ex China Growth Fund (continued)

Note: Net investment income (loss) per share is based on the average shares outstanding during the period.

Performance cited represents past performance. Past performance does not guarantee future results and current performance may be lower or higher than the data quoted. Results shown are annual returns, which assume reinvestment of dividends and capital gains. Investment returns and principal will fluctuate and you may have a gain or loss when you sell shares. For the most current month-end performance information, please call 1-800-742-7272 or visit our Web site at www.williamblairfunds.com.

 

See accompanying Notes to Financial Statements.

 

June 30, 2024    William Blair Funds    117


 

Financial Highlights — For a share outstanding throughout each period

 

 

Emerging Markets Small Cap Growth Fund

 

     Class N  
     (unaudited)
Period Ended
June 30,
     Years Ended December 31,  
     2024      2023     2022     2021     2020     2019  

Net asset value, beginning of period

   $ 19.66      $ 16.13     $ 23.52     $ 22.22     $ 16.80     $ 13.96  

Income (loss) from investment operations:

             

Net investment income (loss)

     0.06        0.03       (0.01     (0.20     (0.06     0.00 ^ 

Net realized and unrealized gain (loss) on investments

     1.94        3.51       (6.59     3.53       5.48       2.84  
  

 

 

    

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     2.00        3.54       (6.60     3.33       5.42       2.84  

Less distributions from:

             

Net investment income

            0.01                          

Net realized gain

                  0.79       2.03              
  

 

 

    

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

            0.01       0.79       2.03              
  

 

 

    

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 21.66      $ 19.66     $ 16.13     $ 23.52     $ 22.22     $ 16.80  
  

 

 

    

 

 

   

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     10.22        21.93       (28.12     15.23       32.26       20.34  

Ratios to average daily net assets (%):**

             

Expenses, before waivers and reimbursements

     1.68        1.70       1.69       1.60       1.77       1.71  

Expenses, net of waivers and reimbursements

     1.40        1.45       1.55       1.55       1.55       1.55  

Net investment income (loss), before waivers and reimbursements

     0.27        (0.07     (0.18     (0.88     (0.58     (0.14

Net investment income (loss), net of waivers and reimbursements

     0.55        0.18       (0.04     (0.83     (0.36     0.02  

Class N net assets at the end of the period (in thousands)

   $ 4,585      $ 3,857     $ 3,069     $ 4,262     $ 3,947     $ 4,025  

Portfolio turnover rate (%)*

     83        117       101       76       119       142  

 

^

Amount is less than $0.005 per share.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

     Class I  
     (unaudited)
Period Ended
June 30,
     Years Ended December 31,  
     2024      2023      2022     2021     2020     2019  

Net asset value, beginning of period

   $ 19.96      $ 16.37      $ 23.79     $ 22.40     $ 16.90     $ 14.03  

Income (loss) from investment operations:

              

Net investment income (loss)

     0.08        0.07        0.04       (0.14     (0.02     0.04  

Net realized and unrealized gain (loss) on investments

     1.98        3.57        (6.67     3.56       5.53       2.86  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     2.06        3.64        (6.63     3.42       5.51       2.90  

Less distributions from:

              

Net investment income

            0.05                    0.01       0.03  

Net realized gain

                   0.79       2.03              
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

            0.05        0.79       2.03       0.01       0.03  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 22.02      $ 19.96      $ 16.37     $ 23.79     $ 22.40     $ 16.90  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     10.32        22.25        (27.93     15.51       32.60       20.58  

Ratios to average daily net assets (%):**

              

Expenses, before waivers and reimbursements

     1.40        1.43        1.40       1.31       1.45       1.40  

Expenses, net of waivers and reimbursements

     1.15        1.20        1.30       1.30       1.30       1.30  

Net investment income (loss), before waivers and reimbursements

     0.53        0.18        0.11       (0.59     (0.25     0.18  

Net investment income (loss), net of waivers and reimbursements

     0.78        0.41        0.21       (0.58     (0.10     0.28  

Class I net assets at the end of the period (in thousands)

   $ 158,775      $ 134,297      $ 108,401     $ 171,994     $ 151,302     $ 142,885  

Portfolio turnover rate (%)*

     83        117        101       76       119       142  

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

See accompanying Notes to Financial Statements.

 

118    Semi-Annual    June 30, 2024


 

Financial Highlights — For a share outstanding throughout each period

 

 

Emerging Markets Small Cap Growth Fund (continued)

     Class R6  
     (unaudited)
Period Ended
June 30,
     Years Ended December 31,  
     2024      2023      2022     2021     2020     2019  

Net asset value, beginning of period

   $ 20.02      $ 16.41      $ 23.84     $ 22.44     $ 16.93     $ 14.06  

Income (loss) from investment operations:

              

Net investment income (loss)

     0.08        0.08        0.05       (0.12     (0.00 )^      0.05  

Net realized and unrealized gain (loss) on investments

     1.99        3.59        (6.69     3.56       5.53       2.86  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     2.07        3.67        (6.64     3.44       5.53       2.91  

Less distributions from:

              

Net investment income

            0.06              0.01       0.02       0.04  

Net realized gain

                   0.79       2.03              
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

            0.06        0.79       2.04       0.02       0.04  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 22.09      $ 20.02      $ 16.41     $ 23.84     $ 22.44     $ 16.93  
  

 

 

    

 

 

    

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     10.34        22.37        (27.91     15.58       32.66       20.69  

Ratios to average daily net assets (%):**

              

Expenses, before waivers and reimbursements

     1.30        1.32        1.31       1.23       1.36       1.33  

Expenses, net of waivers and reimbursements

     1.10        1.15        1.25       1.23       1.25       1.25  

Net investment income (loss), before waivers and reimbursements

     0.56        0.29        0.18       (0.49     (0.14     0.27  

Net investment income (loss), net of waivers and reimbursements

     0.76        0.46        0.24       (0.49     (0.03     0.35  

Class R6 net assets at the end of the period (in thousands)

   $ 245,066      $ 251,558      $ 211,203     $ 324,152     $ 152,160     $ 130,711  

Portfolio turnover rate (%)*

     83        117        101       76       119       142  

 

^

Amount is less than $0.005 per share.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

Note: Net investment income (loss) per share is based on the average shares outstanding during the period.

Performance cited represents past performance. Past performance does not guarantee future results and current performance may be lower or higher than the data quoted. Results shown are annual returns, which assume reinvestment of dividends and capital gains. Investment returns and principal will fluctuate and you may have a gain or loss when you sell shares. For the most current month-end performance information, please call 1-800-742-7272 or visit our Web site at www.williamblairfunds.com.

 

See accompanying Notes to Financial Statements.

 

June 30, 2024    William Blair Funds    119


 

Financial Highlights — For a share outstanding throughout each period

 

 

China Growth Fund

 

     Class I  
     (unaudited)
Period Ended
June 30,
    Years Ended December 31,     Period Ended
December 31,
 
     2024      2023       2022      2021(a)  

Net asset value, beginning of period

   $ 4.87     $ 6.46     $ 9.54     $ 10.00  

Income (loss) from investment operations:

        

Net investment income (loss)

     0.04       0.05       0.03       (0.04

Net realized and unrealized gain (loss) on investments

     0.12       (1.62     (3.11     (0.42
  

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     0.16       (1.57     (3.08     (0.46

Less distributions from:

        

Net investment income

           0.02              
  

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

           0.02              
  

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 5.03     $ 4.87     $ 6.46     $ 9.54  
  

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     3.29       (24.28     (32.43     (4.40

Ratios to average daily net assets (%):**

        

Expenses, before waivers and reimbursements

     9.17       9.78       5.31       4.74  

Expenses, net of waivers and reimbursements

     0.99       0.99       1.01       1.05  

Net investment income (loss), before waivers and reimbursements

     (6.66     (7.93     (3.90     (4.69

Net investment income (loss), net of waivers and reimbursements

     1.52       0.86       0.40       (1.00

Class I net assets at the end of the period (in thousands)

   $ 65     $ 160     $ 509     $ 5,538  

Portfolio turnover rate (%)*

     30       97       36       4  

 

(a) 

For the period from August 27, 2021 (Commencement of Operations) to December 31, 2021.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

     Class R6  
     (unaudited)
Period Ended
June 30,
    Years Ended December 31,     Period Ended
December 31,
 
     2024      2023       2022      2021(a)  

Net asset value, beginning of period

   $ 4.85     $ 6.45     $ 9.54     $ 10.00  

Income (loss) from investment operations:

        

Net investment income (loss)

     0.05       0.04       0.02       (0.03

Net realized and unrealized gain (loss) on investments

     0.11       (1.61     (3.11     (0.43
  

 

 

   

 

 

   

 

 

   

 

 

 

Total from investment operations

     0.16       (1.57     (3.09     (0.46

Less distributions from:

        

Net investment income

           0.03       0.00 ^       
  

 

 

   

 

 

   

 

 

   

 

 

 

Total distributions

           0.03       0.00 ^       
  

 

 

   

 

 

   

 

 

   

 

 

 

Net asset value, end of period

   $ 5.01     $ 4.85     $ 6.45     $ 9.54  
  

 

 

   

 

 

   

 

 

   

 

 

 

Total return (%)*

     3.30       (24.38     (32.49     (4.40

Ratios to average daily net assets (%):**

        

Expenses, before waivers and reimbursements

     9.10       9.75       5.27       4.72  

Expenses, net of waivers and reimbursements

     0.94       0.94       0.96       1.00  

Net investment income (loss), before waivers and reimbursements

     (6.24     (8.08     (4.01     (4.61

Net investment income (loss), net of waivers and reimbursements

     1.92       0.73       0.30       (0.89

Class R6 net assets at the end of the period (in thousands)

   $ 1,750     $ 1,687     $ 1,438     $ 1,687  

Portfolio turnover rate (%)*

     30       97       36       4  

 

(a) 

For the period from August 27, 2021 (Commencement of Operations) to December 31, 2021.

 

^

Amount is less than $0.005 per share.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

See accompanying Notes to Financial Statements.

 

120    Semi-Annual    June 30, 2024


 

Financial Highlights — For a share outstanding throughout each period

 

 

China Growth Fund (continued)

Note: Net investment income (loss) per share is based on the average shares outstanding during the period.

Performance cited represents past performance. Past performance does not guarantee future results and current performance may be lower or higher than the data quoted. Results shown are annual returns, which assume reinvestment of dividends and capital gains. Investment returns and principal will fluctuate and you may have a gain or loss when you sell shares. For the most current month-end performance information, please call 1-800-742-7272 or visit our Web site at www.williamblairfunds.com.

 

See accompanying Notes to Financial Statements.

 

June 30, 2024    William Blair Funds    121


 

Financial Highlights — For a share outstanding throughout each period

 

 

Emerging Markets Debt Fund

 

     Class I  
     (unaudited)
Period Ended
June 30,
     Years Ended December 31,     Period Ended
December 31,
 
     2024       2023        2022      2021(a)  

Net asset value, beginning of period

   $ 7.89      $ 7.44      $ 9.59     $ 10.00  

Income (loss) from investment operations:

          

Net investment income (loss)

     0.27        0.52        0.48       0.27  

Net realized and unrealized gain (loss) on investments

     0.04        0.44        (2.10     (0.40
  

 

 

    

 

 

    

 

 

   

 

 

 

Total from investment operations

     0.31        0.96        (1.62     (0.13

Less distributions from:

          

Net investment income

     0.26        0.48        0.51       0.28  

Return of capital

            0.03        0.02        
  

 

 

    

 

 

    

 

 

   

 

 

 

Total distributions

     0.26        0.51        0.53       0.28  
  

 

 

    

 

 

    

 

 

   

 

 

 

Net asset value, end of period

   $ 7.94      $ 7.89      $ 7.44     $ 9.59  
  

 

 

    

 

 

    

 

 

   

 

 

 

Total return (%)*

     4.02        13.41        (16.93     (1.39

Ratios to average daily net assets (%):**

          

Expenses, before waivers and reimbursements

     1.13        1.26        1.28       1.24  

Expenses, net of waivers and reimbursements

     0.70        0.70        0.70       0.70  

Net investment income (loss), before waivers and reimbursements

     6.35        6.42        5.39       4.02  

Net investment income (loss), net of waivers and reimbursements

     6.78        6.98        5.97       4.56  

Class I net assets at the end of the period (in thousands)

   $ 3,004      $ 3,205      $ 923     $ 1,484  

Portfolio turnover rate (%)*

     59        106        118       72  

 

(a) 

For the period from May 25, 2021 (Commencement of Operations) to December 31, 2021.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

     Class R6  
     (unaudited)
Period Ended
June 30,
     Years Ended December 31,     Period Ended
December 31,
 
     2024       2023        2022      2021(a)  

Net asset value, beginning of period

   $ 7.88      $ 7.44      $ 9.59     $ 10.00  

Income (loss) from investment operations:

          

Net investment income (loss)

     0.27        0.53        0.48       0.28  

Net realized and unrealized gain (loss) on investments

     0.04        0.42        (2.09     (0.41
  

 

 

    

 

 

    

 

 

   

 

 

 

Total from investment operations

     0.31        0.95        (1.61     (0.13

Less distributions from:

          

Net investment income

     0.26        0.48        0.52       0.28  

Return of capital

            0.03        0.02        
  

 

 

    

 

 

    

 

 

   

 

 

 

Total distributions

     0.26        0.51        0.54       0.28  
  

 

 

    

 

 

    

 

 

   

 

 

 

Net asset value, end of period

   $ 7.93      $ 7.88      $ 7.44     $ 9.59  
  

 

 

    

 

 

    

 

 

   

 

 

 

Total return (%)*

     4.05        13.48        (16.95     (1.32

Ratios to average daily net assets (%):**

          

Expenses, before waivers and reimbursements

     1.04        1.17        1.20       1.17  

Expenses, net of waivers and reimbursements

     0.65        0.65        0.65       0.65  

Net investment income (loss), before waivers and reimbursements

     6.50        6.52        5.50       4.10  

Net investment income (loss), net of waivers and reimbursements

     6.89        7.04        6.05       4.62  

Class R6 net assets at the end of the period (in thousands)

   $ 52,279      $ 50,231      $ 44,903     $ 50,010  

Portfolio turnover rate (%)*

     59        106        118       72  

 

(a) 

For the period from May 25, 2021 (Commencement of Operations) to December 31, 2021.

 

*

Not annualized for periods less than a year.

 

**

Annualized for periods less than a year.

 

See accompanying Notes to Financial Statements.

 

122    Semi-Annual    June 30, 2024


 

Financial Highlights — For a share outstanding throughout each period

 

 

Emerging Markets Debt Fund (continued)

Note: Net investment income (loss) per share is based on the average shares outstanding during the period.

Performance cited represents past performance. Past performance does not guarantee future results and current performance may be lower or higher than the data quoted. Results shown are annual returns, which assume reinvestment of dividends and capital gains. Investment returns and principal will fluctuate and you may have a gain or loss when you sell shares. For the most current month-end performance information, please call 1-800-742-7272 or visit our Web site at www.williamblairfunds.com.

 

See accompanying Notes to Financial Statements.

 

June 30, 2024    William Blair Funds    123



 

Notes to Financial Statements (Information as of June 30, 2024 is unaudited)

 

 

 

(1)

Organization

 

(a)

Description of the Trust

William Blair Funds (the “Trust”) is a Delaware statutory trust registered under the Investment Company Act of 1940, as amended (the “1940 Act”), as an open-end management investment company. As of the date of this report, the Trust has the following nineteen funds (the “Funds”) available for sale, each with its own investment objective and policies. For each Fund, the number of shares authorized is unlimited.

 

U.S. Equity   Global Equity    Emerging Markets Debt
Growth Fund   Global Leaders Fund    Emerging Markets Debt Fund
Large Cap Growth Fund     
Mid Cap Value Fund   International Equity   
Small-Mid Cap Core Fund   International Leaders Fund   
Small-Mid Cap Growth Fund   International Growth Fund   
Small-Mid Cap Value Fund   Institutional International Growth Fund   
Small Cap Growth Fund   International Small Cap Growth Fund   
Small Cap Value Fund   Emerging Markets Leaders Fund   
  Emerging Markets Growth Fund   
  Emerging Markets ex China Growth Fund   
  Emerging Markets Small Cap Growth Fund   
  China Growth Fund   

William Blair Investment Management, LLC (the “Adviser”) serves as the Trust’s investment adviser. William Blair & Company, L.L.C. (“WBC” or the “Distributor”), an affiliate of the Adviser, serves as the Trust’s principal underwriter and distributor.

 

(b)

Share Classes

Each Fund is comprised of Class N, Class I and Class R6 shares, except the Mid Cap Value, Small-Mid Cap Core, Small-Mid Cap Value, Emerging Markets ex China Growth, China Growth and Emerging Markets Debt Funds, which are comprised of Class I and Class R6 shares. Institutional International Growth Fund does not offer multiple classes of shares.

Class N shares are available to the general public, either directly through the Trust’s distributor or through a select number of financial intermediaries. Class N shares are sold without any sales load and carry an annual 12b-1 distribution fee at a fixed rate (0.25% for all Funds as discussed in Note 4(b) – Transactions with Affiliates – Underwriting and Distribution Services Agreements) and a sub-transfer agent fee that is not a fixed rate and varies by Fund and class, as discussed below.

Class I shares are available to certain retirement and deferred compensation plans, clients of certain financial intermediaries, and asset-based fee advisory clients of William Blair. The minimum initial investment for a Class I account is $500,000, subject to certain exceptions. Class I shares do not carry any sales load or distribution fees and generally have lower ongoing expenses than Class N shares. Class I shares have a sub-transfer agent fee that is not a fixed rate and varies by Fund and class, as discussed below.

Class R6 shares are available to certain retirement and deferred compensation plans, clients of certain financial intermediaries, asset-based fee advisory clients of William Blair, and additional types of investors, provided that neither the investor nor the financial intermediary requires the Funds to make any type of servicing or administrative payment. The minimum initial investment for a Class R6 account is $1 million, subject to certain exceptions.

Institutional shares are available only to investors of Institutional International Growth Fund and comprise all of the outstanding shares of this Fund. Institutional shares require a minimum initial investment of $5 million, subject to certain exceptions.

Class R6 shares and Institutional shares of the Institutional International Growth Fund do not carry any sales load, distribution fees or sub-transfer agent fees. Class R6 shares of a Fund generally have lower ongoing expenses than the Fund’s Class N and Class I shares.

 

June 30, 2024   

William Blair Funds 

  69


 

Notes to Financial Statements (Information as of June 30, 2024 is unaudited)

 

 

 

Sub-transfer agent fees: For Class N and Class I shares, the Funds may reimburse WBC for fees paid to intermediaries such as banks, broker-dealers, financial advisers or other financial institutions for sub-administration, sub-transfer agency and other services provided to investors whose shares of record are held in omnibus, other group accounts, retirement plans or accounts traded through registered securities clearing agents. These fees may vary based on, for example, the nature of services provided, but generally range up to 0.15% of the assets of the class serviced or maintained by the intermediary or up to $15 per sub-account maintained by the intermediary, depending on the method by which the intermediary charges for the services.

(c) Fund Objectives

The investment objectives of the Funds are as follows:

 

U.S. Equity Funds    Long-term capital appreciation.
Global Equity Fund    Long-term capital appreciation.
International Equity Funds    Long-term capital appreciation.
Emerging Markets Debt Fund    Provide attractive risk-adjusted returns relative to the Fund’s benchmark.

 

(2)

Significant Accounting Policies

The following is a summary of the Trust’s significant accounting policies in effect during the periods covered by the financial statements, which are in accordance with U.S. generally accepted accounting principles (“US GAAP”), which includes the accounting and reporting guidelines under Accounting Standards Topic 946, Financial Services—Investment Companies.

 

(a)

Investment income and transactions

Investment income, realized and unrealized gains and losses, and certain Fund level expenses and expense reductions, if any, are allocated based on the relative net assets of each class, except for certain class-specific expenses, which are charged directly to the appropriate class. Differences in class expenses may result in the payment of different per share dividends by class. All share classes of the Funds have equal rights with respect to voting, subject to class specific arrangements.

Dividend income and expenses are recorded on the ex-dividend date, except for those dividends from certain foreign securities that are recorded when the information is available.

Interest income is recorded on an accrual basis, adjusted for amortization of premium or accretion of discount. Variable rate bonds and floating rate notes earn interest at coupon rates that fluctuate at specific time intervals. The interest rates shown in the Portfolio of Investments for the Emerging Markets Debt Fund were the rates in effect on June 30, 2024. Put bonds may be redeemed at the discretion of the holder on specified dates prior to maturity.

Premiums and discounts are amortized and accreted, respectively, on a straight-line basis for short-term investments and on an effective interest method for long-term investments.

The Funds do not isolate the portion of operations resulting from fluctuations in foreign currency exchange rates on investments from the fluctuations arising from changes in the value of securities held. Such currency fluctuations are included with the net realized and unrealized gain or loss from investments.

Reported net realized foreign currency gains or losses arise from disposition of foreign currency, the difference in the foreign exchange rates between the trade and settlement dates on securities transactions, and the difference between the amounts of dividends, interest and foreign withholding taxes recorded on the ex-date or accrual date and the U.S. dollar equivalent of the amounts actually received or paid. Net unrealized foreign exchange gains and losses arise from changes (due to the changes in the exchange rate) in the value of foreign currency and other assets and liabilities denominated in foreign currencies held at period end.

For financial reporting purposes, security and shareholder transactions are recorded on trade date in accordance with US GAAP. Realized gains and losses from securities transactions are recognized on a specifically identified cost basis.

Awards from class action litigation may be recorded as a reduction of cost. If the Funds no longer own the applicable securities, the proceeds are recorded as realized gains.

 

70   

Semi-Annual

  June 30, 2024


 

Notes to Financial Statements (Information as of June 30, 2024 is unaudited)

 

 

 

(b)

Share Valuation and Distributions to Shareholders

Shares are sold and redeemed on a continuous basis at net asset value. The net asset value per share is determined separately for each class by dividing the Fund’s net assets attributable to that class by the number of shares of the class outstanding as of the close of regular trading on the New York Stock Exchange (the “NYSE”), which is generally 4:00 p.m. Eastern time, on each day the NYSE is open.

Distributions from net investment income, if any, for all Equity Funds are declared and paid at least annually. Distributions from net investment income for Emerging Markets Debt Fund are declared daily and paid monthly. Capital gain distributions, if any, for all Funds, are declared and paid at least annually in December and/or January. Distributions payable to shareholders are recorded on the ex-dividend date.

 

(c)

Foreign Currency Translation

The Funds may invest in securities denominated in foreign currencies. As such, assets and liabilities denominated in foreign currencies are translated into U.S. dollar amounts at the current exchange rate on the date of valuation. The values of foreign investments, open forward foreign currency contracts, and cash denominated in foreign currencies are translated into U.S. dollars using a spot market rate of exchange as of the time of the determination of each Fund’s net asset value, typically 4:00 p.m. Eastern time on days when there is regular trading on the NYSE. Payables and receivables for securities transactions, dividends, interest income and tax reclaims are translated into U.S. dollars using a spot market rate of exchange as of 4:00 p.m. Eastern time. Settlement of purchases and sales and dividend and interest receipts are translated into U.S. dollars using a spot market rate of exchange as of 11:00 a.m. Eastern time.

 

(d)

Income Taxes

Each Fund intends to comply with the provisions of Subchapter M of the Code, in order to qualify as regulated investment companies. Each Fund intends to make the requisite distributions of income and capital gains to its shareholders sufficient to relieve it from all, or substantially all, federal income and excise taxes. No provision for federal income and excise taxes has been made.

Certain Funds may be subject to foreign income taxes imposed on realized gains on securities of issuers from certain foreign countries. Such taxes, if applicable, are accrued and included within change in net unrealized appreciation (depreciation) and net realized gain (loss) on transactions from investments in securities in the Statement of Operations.

Management evaluates tax positions taken or expected to be taken in the course of preparing the Funds’ tax returns to determine whether it is “more likely than not” that each tax position would be sustained upon examination by a taxing authority based on the technical merits of the positions. Tax positions not deemed to meet the “more likely than not” threshold would be recorded as a tax benefit or expense in the current year. Management has evaluated all of the uncertain tax positions of the Funds and has determined that no liability is required to be recorded in the financial statements.

The statute of limitations on the Funds’ U.S. federal and state tax returns for the prior three years remains open and the returns are subject to examination.

 

June 30, 2024   

William Blair Funds 

  71


 

Notes to Financial Statements (Information as of June 30, 2024 is unaudited)

 

 

 

Adjustments to the cost of investments for tax purposes may be due to the deferred loss associated with current and prior year wash sales, income recognition from investments in real estate investment trusts, and the Funds’ election to mark-to-market their investments in Passive Foreign Investment Companies (“PFICs”). The cost of investments, including derivatives, for federal income tax purposes and related gross unrealized appreciation (depreciation) and net unrealized appreciation/(depreciation) at June 30, 2024, were as follows (in thousands):

 

Fund

   Cost of
Investments
     Gross
Unrealized

Appreciation
     Gross
Unrealized

Depreciation
     Net
Unrealized
Appreciation/

(Depreciation)
 

Growth Fund

   $ 153,936      $ 113,245      $ 6,410      $ 106,835  

Large Cap Growth Fund

     1,604,197        804,843        4,490        800,353  

Mid Cap Value Fund

     1,484        172        122        50  

Small-Mid Cap Core Fund

     185,579        25,482        13,081        12,401  

Small-Mid Cap Growth Fund

     1,612,768        383,254        149,769        233,485  

Small-Mid Cap Value Fund

     2,678        115        155        (40

Small Cap Growth Fund

     713,244        178,630        60,021        118,609  

Small Cap Value Fund.

     1,303,627        184,421        172,507        11,914  

Global Leaders Fund

     66,612        38,001        1,021        36,980  

International Leaders Fund.

     888,617        292,626        14,747        277,879  

International Growth Fund

     1,056,827        436,304        24,444        411,860  

Institutional International Growth Fund

     724,266        274,441        16,075        258,366  

International Small Cap Growth Fund

     172,993        47,080        9,544        37,536  

Emerging Markets Leaders Fund

     184,645        51,573        8,762        42,811  

Emerging Markets Growth Fund

     585,879        248,989        11,911        237,078  

Emerging Markets ex China Growth Fund

     18,566        7,217        221        6,996  

Emerging Markets Small Cap Growth Fund

     320,447        98,817        3,622        95,195  

China Growth Fund

     1,750        164        141        23  

Emerging Markets Debt Fund

     54,919        2,108        2,580        (472

As of December 31, 2023, the Funds had unused capital loss carryforwards available for federal income tax purposes to be applied against future capital gains, if any. Under current law, the Funds may carry forward net capital losses indefinitely to use to offset capital gains realized in future years. The following table details the Funds’ available capital loss carryforwards as of December 31, 2023, and the capital loss carryforwards utilized by the Funds in 2023 (in thousands):

 

     Available Capital Loss Carryforwards      Capital Loss
Carryforwards
Utilized in 2023
 

Fund

   Short Term      Long Term      Total  

Large Cap Growth Fund

   $ 24,430      $ 27,873      $ 52,303      $  

Mid Cap Value Fund

     58               58         

Small-Mid Cap Core Fund

     8,340        3,395        11,735        441  

Small-Mid Cap Value Fund

     18               18         

Small Cap Growth Fund

                          13,269  

International Leaders Fund

     91,124        17,430        108,554         

International Small Cap Growth Fund

     27,373        31,634        59,007         

Emerging Markets Leaders Fund

     48,895        62,399        111,294         

Emerging Markets Growth Fund

     102,342        20,375        122,717         

Emerging Markets ex China Growth Fund

     1,072               1,072         

Emerging Markets Small Cap Growth Fund

     61,388               61,388         

China Growth Fund.

     1,953        654        2,607         

Emerging Markets Debt Fund.

     6,186        3,981        10,167         

In order to meet certain excise tax distribution requirements, the Funds are required to measure and distribute annually, net capital gains realized during a twelve month period ending October 31 and net investment income earned during a twelve month period ending December 31. In connection with this, the Funds are permitted for tax purposes to defer into their next fiscal year qualified late year losses. Qualified late year capital losses are any short term or long term capital losses incurred between November 1 and the end of their fiscal year, December 31. Qualified late year ordinary losses are comprised of losses related to swaps, foreign currency and PFICs incurred between November 1 and the end of their fiscal year, December 31.

 

72   

Semi-Annual

  June 30, 2024


 

Notes to Financial Statements (Information as of June 30, 2024 is unaudited)

 

 

 

As of December 31, 2023, the following Funds deferred, on a tax basis, qualified late year losses of (in thousands):

 

     Qualified Late Year Losses  

Fund

    Ordinary 
Income
     Net
 Capital 
 

Small Cap Value Fund

   $      $ 8,252  

Emerging Markets Small Cap Growth Fund

     155         

Emerging Markets Debt Fund

     87         

 

(e)

Repurchase Agreements

In a repurchase agreement, a Fund buys a security at one price and at the time of sale, the seller agrees to repurchase the security at a mutually agreed upon time and price (usually within seven days). The repurchase agreement thereby determines the yield during the purchaser’s holding period, while the seller’s obligation to repurchase is secured by the value of the underlying collateral. The Adviser monitors, on an ongoing basis, the value of the underlying collateral to ensure that the value always equals or exceeds the repurchase price plus accrued interest. Repurchase agreements may involve certain risks in the event of a default or insolvency of the other party to the agreement, including possible delays or restrictions upon a Fund’s ability to dispose of the underlying collateral. The risk to a Fund is limited to the ability of the seller to pay the agreed upon sum on the delivery date. In the event of default, a repurchase agreement provides that a Fund is entitled to sell the underlying collateral. The loss, if any, to a Fund will be the difference between the proceeds from the sale and the repurchase price. However, if bankruptcy proceedings are commenced with respect to the seller of the security, disposition of the collateral by the Fund may be delayed or limited. The Funds have master repurchase agreements which allow the Funds to offset amounts owed to a counterparty with amounts owed from the same counterparty, including any collateral, in the event the counterparty defaults. Each Fund’s outstanding repurchase agreements, if any, and related collateral, are shown on the Fund’s Portfolio of Investments. Although no definitive creditworthiness criteria are used, the Adviser reviews the creditworthiness of the banks and non-bank dealers with which a Fund enters into repurchase agreements to evaluate those risks. A Fund may, for tax purposes, deem repurchase agreements collateralized by U.S. Government securities to be investments in U.S. Government securities.

 

(f)

Trustees & Officers

The Trustees and Officers affiliated with the Adviser receive no compensation from the Trust. Trustees who are not affiliated with the Adviser receive compensation from the Trust in the form of an annual retainer plus fees for attendance at Board and Committee meetings. The Lead Independent Trustee and the Chairs of the Audit Committee, Compliance Committee and Nominating and Governance Committee each receive an additional retainer for serving in such positions. Additionally, each independent trustee is entitled to reimbursement of expenses related to his or her duties as a Trustee of the Trust. For the period ended June 30, 2024, Trustee Fees were $512 (in thousands) in aggregate for the Trust.

 

(g)

Use of Estimates

The preparation of financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements. Actual results may differ from those estimates.

 

(h)

Indemnification

In the normal course of business, the Funds have entered into contracts in which the Funds agree to indemnify the other party or parties against various potential costs or liabilities. The Funds’ maximum exposure under these arrangements is unknown. No claim has been made for indemnification pursuant to any such agreement of the Funds.

 

(3)

Valuation

 

(a)

Investment Valuation

The value of U.S. equity securities, including exchange-traded funds, is determined by valuing securities traded on national securities markets or in the over-the-counter markets at the last sale price or, if applicable, the official closing price or, in the absence of a recent sale on the date of determination, at the mean between the last reported bid and ask prices.

 

June 30, 2024   

William Blair Funds 

  73


 

Notes to Financial Statements (Information as of June 30, 2024 is unaudited)

 

 

 

The value of foreign equity securities is generally determined based upon the last sale price on the foreign exchange or market on which it is primarily traded and in the currency of that market as of the close of the appropriate exchange or, if there have been no sales during that day, at the mean between the last reported bid and ask prices. The Adviser has determined that the passage of time between when the foreign exchanges or markets close and when the Funds compute their net asset values could cause the value of foreign equity securities to no longer be representative or accurate and, as a result, may necessitate that such securities be fair valued. Accordingly, for foreign equity securities, the Funds may use an independent pricing service to fair value price the security as of the close of regular trading on the NYSE. As a result, a Fund’s value for a foreign security may be different from the last sale price (or the mean between the last reported bid and ask prices). As of June 30, 2024, fair valuation estimates for foreign equity securities were not obtained.

Fixed income securities are generally valued using evaluated prices provided by an independent pricing service. The evaluated prices are formed using various market inputs that the pricing service believes accurately represent the market value of a security at a particular point in time. The pricing service determines evaluated prices for fixed income securities using inputs including, but not limited to, recent transaction prices for such securities, dealer quotes, transaction prices for other securities with similar characteristics, collateral characteristics, credit quality, payment history, liquidity and market conditions.

Repurchase agreements are valued at cost, which approximates fair value.

Forward foreign currency contracts are valued on the basis of the value of the underlying currencies at the prevailing currency exchange rate as supplied by an independent pricing service.

Swaps that are centrally cleared through an exchange are valued at the most recent settlement price provided by the exchange on which they are cleared. Total return swaps on equities, equity baskets, indices and other financial instruments are valued by an independent pricing service, or if unavailable, based on the security’s or instrument’s underlying reference asset.

Securities, and other assets, for which a market quotation is not available or is deemed unreliable (e.g., securities affected by unusual or extraordinary events, such as natural disasters or securities affected by market or economic events, such as bankruptcy filings), or the value of which is affected by a significant valuation event, are valued at a fair value. Pursuant to Rule 2a-5 under the 1940 Act, the Board of Trustees has designated the Adviser as the valuation designee to perform fair value determinations for the Funds. The value of these fair valued securities may be different from the last sale price (or the mean between the last reported bid and ask prices), and there is no guarantee that a fair valued security will be sold at the price at which a Fund is carrying the security.

 

(b)

Fair Value Measurements

Fair value is defined as the price that a Fund would receive upon selling a security in an orderly transaction to an independent buyer in the principal or most advantageous market for the investment. Various inputs are used in determining the value of a Fund’s investments. A three-tier hierarchy of inputs is used to classify fair value measurements for disclosure purposes. The three-tier hierarchy of inputs is summarized in the three broad levels listed below:

 

   

Level 1—Quoted prices (unadjusted) in active markets for an identical security.

 

   

Level 2—Prices determined using other significant observable inputs. Observable inputs are inputs that other market participants would use in pricing a security. These may include quoted prices for similar securities, interest rates, prepayment speeds, credit risk, and others. In addition, other observable inputs such as foreign exchange rates, benchmark securities indices and foreign futures contracts may be utilized in the valuation of certain foreign securities when significant events occur between the last sale on the foreign securities exchange and the time at which the net asset value of the Fund is calculated.

 

   

Level 3—Prices determined using significant unobservable inputs. In situations where quoted prices or observable inputs are unavailable (for example, when there is little or no market activity for an investment), unobservable inputs may be used. Unobservable inputs reflect the Fund’s own assumptions about the factors market participants would use in pricing an investment, and are based on the best information available.

The value of investments in securities and other financial instruments, segregated by their hierarchical input levels used in determining fair value and by security class or other financial instruments, are shown at the end of each Fund’s Portfolio of Investments.

 

74   

Semi-Annual

  June 30, 2024


 

Notes to Financial Statements (Information as of June 30, 2024 is unaudited)

 

 

 

The inputs or methodology used for valuing an investment are not necessarily an indication of the risk associated with investing in those securities.

A description of the valuation methodologies applied to the Funds’ major categories of assets and liabilities measured at fair value on a recurring basis is as follows:

Exchange-Traded Securities

Securities traded on a national securities exchange (or reported on the NASDAQ national market), including exchange-traded funds, are stated at the last reported sales price on the day of valuation. Other securities traded in the over-the-counter market and listed securities for which no sale was reported on that date are stated at the mean between the last reported bid and ask prices. To the extent these securities are actively traded and valuation adjustments are not applied, they are categorized as Level 1 of the fair value hierarchy. Securities traded on inactive markets or valued by reference to similar instruments are generally categorized as Level 2 of the fair value hierarchy.

Fixed Income Securities

Fixed income securities are generally valued using evaluated prices provided by an independent pricing service. The evaluated prices are formed using various market inputs that the pricing service believes accurately represent the fair value of a security at a particular point in time. The pricing service determines evaluated prices for fixed income securities using inputs including, but not limited to, recent transaction prices for such securities, dealer quotes, transaction prices for other securities with similar characteristics, collateral characteristics, credit quality, payment history, liquidity and market conditions. Securities that use similar valuation techniques and observable inputs as described above are categorized as Level 2 of the fair value hierarchy.

Repurchase Agreements

Repurchase agreements are valued at cost, which approximates fair value. Repurchase agreements are categorized as Level 2 of the fair value hierarchy.

Derivative Instruments

Forward foreign currency contracts and swaps are valued using pricing inputs observed from actively quoted markets and are categorized within Level 2 of the fair value hierarchy.

Level 3 Securities

The fair value estimates for the Level 3 securities in the Small-Mid Cap Growth Fund and Small Cap Growth Fund were determined in good faith by the Adviser pursuant to the Trust’s Valuation Procedures. There were various factors considered in reaching the fair value determination, including, but not limited to, the following: the type of security, the extent of public trading of the security, information obtained for the security, and analysis of the company’s performance and market trends that influence its performance. The Level 3 securities represented 0.00% and 0.00% as a percentage of net assets in the Small-Mid Cap Growth Fund and Small Cap Growth Fund, respectively.

 

June 30, 2024   

William Blair Funds 

  75


 

Notes to Financial Statements (Information as of June 30, 2024 is unaudited)

 

 

 

(4)

Transactions with Affiliates

 

(a)

Management and Expense Limitation Agreements

Each Fund has a management agreement with the Adviser for investment management, clerical, bookkeeping and administrative services. Each Fund pays the Adviser an annual management fee, which is accrued daily and paid monthly, based on a specified percentage of the Fund’s average daily net assets. Each Fund’s annual management fee rate is as follows:

 

U.S. Equity Funds       

Growth

     0.75%  

Large Cap Growth.

     0.60%  

Mid Cap Value

     0.70%  

Small-Mid Cap Core.

     0.90%  

Small-Mid Cap Growth

     0.94%  

Small-Mid Cap Value

     0.80%  

Small Cap Growth.

     0.94%  

Small Cap Value

     0.75%  
Emerging Markets Debt Fund       

Emerging Markets Debt

     0.65%  
Global Equity Fund       

Global Leaders

     0.85%  
International Equity Funds       

International Leaders

     0.85%  

International Growth:

  

First $3 billion.

     0.94%  

Next $2 billion

     0.90%  

Next $5 billion

     0.85%  

Next $5 billion

     0.825%  

In excess of $15 billion.

     0.80%  

Institutional International Growth:

  

First $1.875 billion

     0.94%  

Next $625 million.

     0.90%  

Next 2.5 billion

     0.875%  

Next $5 billion

     0.85%  

Next $5 billion

     0.825%  

In excess of $15 billion.

     0.80%  

International Small Cap Growth

     1.00%  

Emerging Markets Leaders

     0.94%  

Emerging Markets Growth

     0.94%  

Emerging Markets ex China Growth

     0.94%  

Emerging Markets Small Cap Growth

     1.10%  

China Growth.

     0.94%  
 

 

76   

Semi-Annual

  June 30, 2024


 

Notes to Financial Statements (Information as of June 30, 2024 is unaudited)

 

 

 

The Funds have also entered into an Amended and Restated Expense Limitation Agreement with the Adviser. Under the terms of the agreement, the Adviser will waive its management fee and/or reimburse a Fund for certain operating expenses, subject to certain excluded expenses, in excess of the agreed upon rate through April 30, 2025. Excluded expenses include interest expenses, taxes, brokerage commissions, acquired fund fees and expenses, dividend and interest expenses on short sales, other investment related costs and extraordinary expenses, such as litigation and other expenses not incurred in the ordinary course of a Fund’s business. The amount the Adviser owes a Fund as of the reporting date is recorded as Receivable from Adviser in the Statements of Assets and Liabilities. The Adviser reimburses the Funds on a monthly basis. The Adviser will waive fees and/or reimburse expenses to the extent that the total operating expenses for the stated class of the Funds, subject to certain excluded expenses, exceed the following rates (as a percentage of average daily net assets):

 

     Class N     Class I     Institutional/Class R6  

Fund

   Effective
May 1, 2024
through
April 30,
2025
    Effective
May 1, 2023
through
April 30,
2024
    Effective
May 1, 2024
through
April 30,
2025
    Effective
May 1, 2023
through
April 30,
2024
    Effective
May 1, 2024
through
April 30,
2025
    Effective
May 1, 2023
through
April 30,
2024
 

Growth Fund

     1.20     1.20     0.95     0.95     0.90     0.90

Large Cap Growth Fund

     0.90     0.90     0.65     0.65     0.60     0.60

Mid Cap Value Fund

     N/A       N/A       0.75     0.75     0.70     0.70

Small-Mid Cap Core Fund

     N/A       N/A       0.95     0.95     0.90     0.90

Small-Mid Cap Growth Fund

     1.24     1.24     0.99     0.99     0.94     0.94

Small-Mid Cap Value Fund

     N/A       N/A       0.85     0.85 %1,2      0.80     0.80 %1,2 

Small Cap Growth Fund

     1.24     1.24     0.99     0.99     0.94     0.94

Small Cap Value Fund

     1.15     1.15     0.89     0.89     0.85     0.85

Global Leaders Fund

     1.15     1.15     0.90     0.90     0.85     0.85

International Leaders Fund

     1.15     1.15     0.90     0.90     0.85     0.85

International Growth Fund

     1.24     1.24     0.99     0.99     0.94     0.94

Institutional International Growth Fund

     N/A       N/A       N/A       N/A       0.94     0.94

International Small Cap Growth Fund

     1.35     1.35     1.10     1.10     1.05     1.05

Emerging Markets Leaders Fund

     1.24     1.24     0.99     0.99     0.94     0.94

Emerging Markets Growth Fund

     1.24     1.24     0.99     0.99     0.94     0.94

Emerging Markets ex China Growth Fund

     N/A       N/A       0.99     0.99     0.94     0.94

Emerging Markets Small Cap Growth Fund

     1.40     1.40     1.15     1.15     1.10     1.10

China Growth Fund

     N/A       N/A       0.99     0.99     0.94     0.94

Emerging Markets Debt Fund

     N/A       N/A       0.70     0.70     0.65     0.65

 

1

Effective August 17, 2023 (Commencement of Operations).

2

Effective through April 30, 2025.

The fee waivers and/or expense reimbursements received by each class are reported in the Statements of Operations.

The Adviser is entitled to recoupment of previously waived fees and reimbursed expenses for a period of three years subsequent to a Fund’s commencement of operations to the extent that such recoupment does not cause the Fund’s annual operating expenses (after the recoupment is taken into account) to exceed both (1) the expense limit in place when such amounts were waived or reimbursed and (2) the Fund’s current expense limitation. The total amounts available for recoupment as of June 30, 2024 were as follows (in thousands):

 

Fund

   Available for
Recoupment
     Expiration of
Recoupment

Mid Cap Value Fund

   $ 287      March 16, 2025

Small-Mid Cap Value Fund

     119      August 17, 2026

Emerging Markets ex China Growth Fund

     483      July 29, 2025

China Growth Fund

     434      August 27, 2024

 

June 30, 2024   

William Blair Funds 

  77


 

Notes to Financial Statements (Information as of June 30, 2024 is unaudited)

 

 

 

(b)

Underwriting and Distribution Services Agreements

Pursuant to separate Underwriting and Distribution Agreements, WBC is the principal underwriter and distributor for the continuous offering of shares of the Trust and acts as agent of the Trust in the sale of its shares. The Underwriting Agreement provides that the Distributor will use its best efforts to distribute the Trust’s shares. The Distributor is not compensated under the Underwriting Agreement.

Each Fund, except the Mid Cap Value, Small-Mid Cap Core, Small-Mid Cap Value, Emerging Markets ex China Growth, China Growth, Emerging Markets Debt and Institutional International Growth Funds, has a Distribution Agreement with WBC for distribution services to the Funds’ Class N shares. Each Fund pays WBC an annual fee, payable monthly, based on a specified percentage of its average daily net assets of Class N shares. The annual rate expressed as a percentage of average daily net assets for Class N is 0.25% for all Funds. Pursuant to the Distribution Agreement, WBC enters into related selling group agreements with various firms at various rates for sales of the Funds’ Class N shares.

 

(5)

Investment Transactions

Investment transactions, excluding U.S. government securities and short-term securities, for the period ended June 30, 2024, were as follows (in thousands):

 

Fund

   Purchases      Sales  

Growth Fund

   $ 75,658      $ 86,118  

Large Cap Growth Fund.

     721,519        360,844  

Mid Cap Value Fund

     513        400  

Small-Mid Cap Core Fund.

     56,680        58,567  

Small-Mid Cap Growth Fund

     453,885        637,671  

Small-Mid Cap Value Fund

     1,802        631  

Small Cap Growth Fund.

     226,338        222,129  

Small Cap Value Fund

     196,970        164,361  

Global Leaders Fund

     22,203        27,892  

International Leaders Fund

     308,099        296,943  

International Growth Fund

     273,221        262,333  

Institutional International Growth Fund

     195,201        175,391  

International Small Cap Growth Fund

     52,161        77,824  

Emerging Markets Leaders Fund

     86,941        130,249  

Emerging Markets Growth Fund

     248,233        350,999  

Emerging Markets ex China Growth Fund

     8,647        8,711  

Emerging Markets Small Cap Growth Fund

     332,665        354,794  

China Growth Fund

     536        605  

Emerging Markets Debt Fund

     30,856        29,379  

 

(6)

Financial Derivative Instruments 

Each Fund may use derivative instruments to maintain liquidity, to provide hedging, or in anticipation of changes in the composition of its portfolio holdings or as otherwise provided in each Fund’s prospectus. The derivative instruments held as of June 30, 2024 as disclosed in each Fund’s Portfolio of Investments, are representative of each Fund’s derivative instrument trading activity during the period ended June 30, 2024.

Derivative transactions carry counterparty risk as they are based on contracts between a Fund and the applicable counterparty. For exchange-traded or cleared derivative contracts, such counterparty risk is limited due to the role of the exchange or clearinghouse. OTC derivative contracts, however, are exposed to counterparty risk in the amount of unrealized gains, net of collateral held, for the duration of the contract.

The Emerging Markets Debt Fund is subject to certain netting arrangements through International Swaps and Derivatives Association, Inc. Master Agreements and Credit Support Annexes (“ISDAs”). The ISDAs maintain provisions for general obligations, representations, agreements, collateral and events of default or termination. The ISDAs cover certain OTC derivative securities entered into by the Emerging Markets Debt Fund with various counterparties and allow the Emerging Markets Debt Fund to close out and net its total exposure to a counterparty in the event of a default.

 

78   

Semi-Annual

  June 30, 2024


 

Notes to Financial Statements (Information as of June 30, 2024 is unaudited)

 

 

 

Forward Foreign Currency Contracts

The Global Equity, International Equity and Emerging Markets Debt Funds may enter into forward foreign currency contracts. When entering into a forward foreign currency contract, a Fund agrees to receive or deliver a fixed quantity of foreign currency for an agreed-upon price on an agreed future date. A Fund’s net equity therein, representing unrealized gain or loss on the contracts as measured by the difference between the forward foreign exchange rates at the dates of entry into the contracts and the forward rates at the reporting date, is included in the Statement of Assets and Liabilities as unrealized appreciation/depreciation on forward foreign currency contracts. Realized and unrealized gains and losses are included in the Statement of Operations. These instruments may involve market risk, credit risk, or both kinds of risks in excess of the amount recognized in the Statement of Assets and Liabilities. Risks arise from the possible inability of counterparties to meet the terms of their contracts and from the price movements in currencies.

Swap Contracts

Swap agreements may include total return, interest rate, securities index, commodity, security, currency exchange rate, credit default index, volatility and variance swaps. Cleared swaps are transacted through futures commission merchants that are members of central clearing houses with the clearing house serving as a central counterparty similar to transactions in futures contracts. In a standard “swap” transaction, two parties agree to exchange the returns (or differentials in rates of return) earned or realized on particular predetermined investments or instruments. The gross returns to be exchanged or “swapped” between the parties are calculated with respect to a “notional amount” (i.e., the change in the value of a particular dollar amount invested, for example, at a particular interest rate, in a particular foreign currency, or in a “basket” of securities representing a particular index). Swap agreements are subject to the risk that the counterparty to the swap will default on its obligation to pay a Fund and the risk that a Fund will not be able to meet its obligations to pay the counterparty to the swap. Swap agreements may also involve fees, commissions or other costs that may reduce a Fund’s gains from a swap agreement or may cause a Fund to lose money. To the extent permitted by its investment policies and restrictions, a Fund may invest in the following types of swaps:

Credit Default Swaps—A Fund may invest in credit default swaps as a means of “buying” credit protection (i.e., attempting to mitigate the risk of default or credit quality deterioration in some portion of a Fund’s holdings) or “selling” credit protection (i.e., attempting to gain exposure to an underlying issuer’s credit quality characteristics without directly investing in that issuer). A credit default swap is a contract between a buyer and a seller of protection against a pre-defined credit event (e.g., a ratings downgrade or default) on an underlying reference obligation, which may be a single debt instrument or baskets or indices of securities. Under current regulatory requirements, a Fund may be a buyer or seller of a credit default swap. As a seller of protection on credit default swap agreements, a Fund will generally receive from the buyer of protection a fixed rate of income throughout the term of the swap provided that there is no credit event. A Fund adds leverage to its portfolio because the Fund is subject to investment exposure on the notional amount of the swap. The maximum potential amount of future payments that a Fund as a seller of protection could be required to make under a credit default swap agreement equals the notional amount of the agreement. Notional amounts of each individual credit default swap agreement outstanding as of the period end for which a Fund is the seller of protection are disclosed in the Fund’s Portfolio of Investments. These potential amounts would be partially offset by any recovery values of the respective referenced obligations, upfront payments received upon entering into the agreement, or net amounts received from the settlement of buy protection credit default swap agreements entered into by the same Fund for the same referenced entity or entities. For credit default swap contracts on credit indices, the quoted market prices and resulting values serve as an indicator of the payment performance risk. Increasing market values, in absolute terms when compared to the notional amount of the swap, typically represent deterioration of the referenced entities’ credit soundness and a greater likelihood or risk of default or other credit event occurring as defined under the terms of the swap.

Interest Rate Swap—A Fund may invest in interest rate swaps to gain or mitigate exposure to changes in interest rates. Interest rate swap agreements involve a commitment between parties to pay either a fixed interest rate or a floating interest rate based on a notional amount of principal. The parties make payments at predetermined intervals throughout the life of the swap. As a payer, a Fund would make the fixed payment and receive the floating payment. As a receiver, a Fund would make the floating payment and receive the fixed payment.

Total Return Swap—A Fund may invest in total return swaps to gain or mitigate exposure to an underlying security, or securities. Total return swap agreements may involve commitments to pay interest in exchange for the return on the underlying security, or securities. At maturity, a net cash flow is exchanged between the parties based on the total return of the underlying

 

June 30, 2024   

William Blair Funds 

  79


 

Notes to Financial Statements (Information as of June 30, 2024 is unaudited)

 

 

 

security, or securities, less a financing rate. As a receiver in the transaction, a Fund would receive a payment for a positive return and would make a payment for a negative return. As a payer in the transaction, a Fund would make a payment for a positive return and would receive a payment for a negative return.

The following table presents the value of financial derivative instruments, by Fund and primary risk exposure, as of June 30, 2024, and their respective location in the Statements of Assets and Liabilities (in thousands):

 

    

Assets

    

Liabilities

 

Fund and

Primary Risk Exposure

  

Statements of Assets

and Liabilities

   Value     

Statements of Assets

and Liabilities

   Value  

Emerging Markets Debt Fund

           

Credit

  

Receivable for variation margin on centrally cleared swaps1

   $ 163     

Payable for variation margin on centrally cleared swaps1

   $ 136  

Currency

  

Unrealized appreciation on forward foreign currency contracts

     32     

Unrealized depreciation on forward foreign currency contracts

     1  

Interest Rate

  

Receivable for variation margin on centrally cleared swaps1

     77     

Payable for variation margin on centrally cleared swaps1

     10  

 

1

The table above includes cumulative appreciation/(depreciation) on centrally cleared swaps as reported in the Fund’s Portfolio of Investments. Receivable/payable for variation margin on centrally cleared swaps as reported in the Fund’s Statement of Assets and Liabilities represents the current day’s variation margin.

The following table indicates the effect of derivatives, by Fund and primary risk exposure, in the Statements of Operations for the year ended June 30, 2024 (in thousands):

 

   

Net Realized Gain (Loss)

   

Change in Net Unrealized

Appreciation (Depreciation)

 

Fund and

Primary Risk Exposure

 

Statements of Operations

   Value    

Statements of Operations

   Value  

Emerging Markets Debt Fund

         

Credit

 

Swaps

   $ (130  

Swaps

   $ 102  

Currency

 

Forward foreign currency contracts

     20    

Forward foreign currency contracts

     71  

Interest Rate

 

Swaps

     (105  

Swaps

     (106

The following table is a summary by counterparty of the derivative instruments and collateral pledged/(received) included in the Fund’s Statement of Assets and Liabilities at June 30, 2024 (in thousands):

 

     Financial Derivative Assets      Financial Derivative Liabilities                      

Counterparty

   Forward
Foreign
Currency
Contracts
     Total      Forward
Foreign
Currency
Contracts
    Total     Net
Market
Value
     Collateral
Pledged
(Received)
     Net
Exposure
 

Emerging Markets Debt Fund

                  

Citibank N.A.

     32        32        (1     (1     31               31  
  

 

 

    

 

 

    

 

 

   

 

 

         
   $ 32      $ 32      $ (1   $ (1        
  

 

 

    

 

 

    

 

 

   

 

 

         

The net exposure represents the amount due from/(due to) the counterparty in the event of default. Any net exposure is generally due to changes in market value of the underlying derivative instruments on the last day of the period as timing of collateral movement occurs the following day.

 

80   

Semi-Annual

  June 30, 2024



RENEWAL OF THE MANAGEMENT AGREEMENT
On April 24, 2024, the Board of Trustees (the “Board”) of the William Blair Funds (the “Trust”), including the Trustees who are not “interested persons” of the Trust as defined by the Investment Company Act of 1940, as amended (the “Independent Trustees”), approved the renewal for an additional one-year term of the Trust’s Management Agreement with William Blair Investment Management, LLC (the “Adviser”) on behalf of each of the William Blair Funds (each, a “Fund” and collectively, the “Funds”). In deciding to approve the renewal of the Management Agreement, the Board did not identify any single factor or group of factors as all important or controlling and considered all factors together. The Board did not allot a particular weight to any one factor or group of factors.
The information in this summary outlines the Board’s considerations associated with its renewal of the Management Agreement. In connection with its deliberations regarding the continuation of the Management Agreement, the Board considered such information and factors as it believed to be necessary to evaluate the terms of the Management Agreement. As described below, the Board considered the nature, quality and extent of the services performed by the Adviser under the Management Agreement; the investment performance of each Fund and the Adviser; comparative management fees and expense ratios as prepared by an independent provider (FUSE); the estimated profitability realized by the Adviser; the extent to which the Adviser realizes economies of scale as a Fund grows; and whether fall-out benefits are being realized by the Adviser. In addition, the Independent Trustees discussed the renewal of the Management Agreement with Trust management and in private sessions with independent legal counsel at which no representatives of the Adviser were present.
The Board, including the Independent Trustees, considered the renewal of the Management Agreement pursuant to a process that concluded at the Board’s April 24, 2024 meeting. In preparation for the review process, the Independent Trustees considered the type and nature of information to be requested, and independent legal counsel sent a formal request for information to the Adviser. The Adviser provided extensive information in response to the request. After reviewing the information received, the Independent Trustees requested supplemental information, which the Adviser provided. The Independent Trustees also received a memorandum from legal counsel advising them of their duties and responsibilities in connection with the consideration of the Management Agreement. For each Fund, the Independent Trustees reviewed comparative performance information and comparative management fees and net expense ratios provided by FUSE for a peer group of funds and a broader peer universe of funds. In addition, the Independent Trustees considered: (1) the nature, quality and extent of the services provided by the Adviser; (2) information comparing the performance of each Fund to one or more relevant securities indexes; (3) information comparing management fees of each Fund to fees charged by the Adviser to other funds and client accounts with similar investment strategies; (4) the estimated allocated direct or indirect costs of services provided and estimated profits realized by the Adviser for both the Trust as a whole and each Fund individually; and (5) information describing other benefits to the Adviser and its affiliate, William Blair & Company, L.L.C. (the “Distributor”), resulting from their relationship with the Funds. The Independent Trustees also noted that they receive information from the Adviser regarding the Funds throughout the year in connection with regular Board meetings, including presentations from portfolio managers. In addition, the Adviser made a presentation to the Board regarding the contract review information, including addressing the supplemental information requests, and answered questions from the Independent Trustees. The Board, including the Independent Trustees, determined that, given the totality of the information provided with respect to the Management Agreement, the Board had received sufficient information to renew the Management Agreement. The Independent Trustees noted that in evaluating the Management Agreement, they were taking into account their accumulated experience as Board members in working with the Adviser on matters relating to the Funds. Based on their review, the Independent Trustees concluded that it was in the best interest of each Fund to renew the Management Agreement and, accordingly, recommended to the Board of the Trust the renewal of the Management Agreement for each Fund. The Board considered the recommendation of the Independent Trustees along with other factors that the Board deemed relevant.
Nature, Quality and Extent of Services. In evaluating the nature, quality and extent of the services provided by the Adviser to the Funds, the Board noted that the Adviser is a quality firm with a reputation for integrity and honesty that employs high-quality people and has a long association with the Funds. The Board believes that a long-term relationship with a capable, conscientious adviser is in the best interests of shareholders, and that shareholders have invested in the Funds knowing that the Adviser manages the Funds and knowing the management fees. The Board considered the Adviser’s fundamental research approach in actively managed, process-oriented investing. The Board considered biographical information about the Trust’s officers, other Adviser personnel and the Funds’ portfolio managers, including information on the portfolio managers’ personal investments in the Fund(s) they manage. The Board also considered the administrative services performed by the Adviser, financial information regarding the Adviser, the Adviser’s execution quality and use of soft dollars, risk management oversight, compliance program and the expense limitations proposed for each of the Funds’ share classes. In addition, the Board considered the nature, quality and extent of the services that the Adviser provides to the Funds compared to the services that the Adviser provides to other clients. The Board noted that the Adviser pays the compensation of all of the officers of the Trust. Based upon all relevant factors, the Board concluded that the nature, quality and extent of the services provided by the Adviser to each Fund were appropriate.
Performance. The Board reviewed information on the annualized net total returns of Class I shares of the Funds (except for the Institutional International Growth Fund, which does not have share classes) for the one-, three-, five- and ten-year periods
1

ended December 31, 2023, as applicable, along with annualized total return information for a broad peer universe of funds and one or more benchmark securities indexes. For purposes of this report, Class I shares were used for comparison purposes for all Funds (except for the Institutional International Growth Fund, which does not have share classes) as the Board noted that Class I shares represent the largest percentage of assets in the Trust. In evaluating performance, the Board recognized that the performance data reflects a snapshot of periods as of a particular date and that selecting different performance periods produces different results.
The Board considered that the Adviser seeks to provide superior performance over the long term and was committed to managing each Fund consistently with the Fund’s stated investment strategies and that at times relative performance will be affected by whether the market environment favors or disfavors particular investments, styles and/or market capitalizations. The Board considered that the Adviser had managed the Funds consistent with their respective investment strategies. Based on the information provided, the Board considered the following with respect to the total returns of each Fund:
Growth Fund. The Board considered that the Fund’s total return was below the median of its peer universe for the one-year period and above the median of its peer universe for the three- and five-year periods ended December 31, 2023. The Board also considered that the Fund underperformed the benchmark (Russell 3000® Growth Index) for the one-, three- and five-year periods ended December 31, 2023.
Large Cap Growth Fund. The Board considered that the Fund’s total return was above the median of its peer universe for the one-, three- and five-year periods ended December 31, 2023. The Board also considered that the Fund underperformed the benchmark (Russell 1000® Growth Index) for the one-, three- and five-year periods ended December 31, 2023.
Mid Cap Value Fund. The Board considered that the Fund’s total return was above the median of its peer universe and above the benchmark (Russell Midcap Value Index) for the one-year period ended December 31, 2023. The Board considered that the Fund commenced operations on March 16, 2022, which provided a limited period of time to evaluate investment performance.
Small-Mid Cap Core Fund. The Board considered that the Fund’s total return was below the median of its peer universe for the one- and three-year periods ended December 31, 2023. The Board also considered that the Fund underperformed the benchmark (Russell 2500™ Index) for the one-year period and outperformed the benchmark for the three-year period ended December 31, 2023. The Board also considered the Adviser’s explanation that underperformance for the one-year period was primarily attributable to stock selection in the Consumer Discretionary and Information Technology sectors.
Small-Mid Cap Growth Fund. The Board considered that the Fund’s total return was below the median of its peer universe for the one- and five-year periods and above the median of its peer universe for the three-year period ended December 31, 2023. The Board also considered that the Fund underperformed the benchmark (Russell 2500™ Growth Index) for the one- and five-year periods and outperformed the benchmark for the three-year period ended December 31, 2023.
Small Cap Growth Fund. The Board considered that the Fund’s total return was below the median of its peer universe for the one-year period and above the median of its peer universe for the three- and five-year periods ended December 31, 2023. The Board also considered that the Fund underperformed the benchmark (Russell 2000® Growth Index) for the one-year period and outperformed the benchmark for the three- and five-year periods ended December 31, 2023.
Small Cap Value Fund. The Board considered that the Fund’s total return was below the median of its peer universe for the one-, three- and five-year periods ended December 31, 2023. The Board also considered that the Fund underperformed the benchmark (Russell 2000® Value Index) for the one-year period and outperformed the benchmark for the three- and five-year periods ended December 31, 2023. The Board considered the Adviser’s statements that relative underperformance for the one-year period was driven by a combination of stock selection and outperformance of lower quality stocks not held by the Fund.
Global Leaders Fund. The Board considered that the Fund’s total return was equal to the median of its peer universe for the one-year period and below the median of its peer universe for the three- and five-year periods ended December 31, 2023. The Board also considered that the Fund outperformed the benchmark (MSCI All Country World IMI (net) Index) for the one- and five-year periods and underperformed the benchmark for the three-year period ended December 31, 2023.
International Leaders Fund. The Board considered that the Fund’s total return was below the median of its peer universe for the one-, three- and five-year periods ended December 31, 2023. The Board also considered that the Fund underperformed the benchmark (MSCI All Country World Ex-U.S. IMI (net) Index) for the one- and three-year periods and outperformed the benchmark for the five-year period ended December 31, 2023. The Board considered that the Fund’s underperformance was largely attributable to calendar year 2022 due to style headwinds amid strong performance of low-valuation stocks. The Board additionally considered the Fund’s underperformance in calendar year 2023 driven by style headwinds and stock selection from both sector and regional perspectives.
2

International Growth Fund. The Board considered that the Fund’s total return was below the median of its peer universe for the one- and three-year periods and above the median of its peer universe for the five-year period ended December 31, 2023. The Board also considered that the Fund underperformed the benchmark (MSCI All Country World Ex-U.S. IMI (net) Index) for the one- and three-year periods and outperformed the benchmark for the five-year period ended December 31, 2023.
Institutional International Growth Fund. The Board considered that the Fund’s total return was below the median of its peer universe for the one-year and three-year periods and above the median of its peer universe for the five-year period ended December 31, 2023. The Board also considered that the Fund underperformed the benchmark (MSCI All Country World Ex-U.S. IMI (net) Index) for the one- and three-year periods and outperformed the benchmark for the five-year period ended December 31, 2023.
International Small Cap Growth Fund. The Board considered that the Fund’s total return was above the median of its peer universe for the one- and five-year periods and below the median of its peer universe for the three-year period ended December 31, 2023. The Board also considered that the Fund underperformed the benchmark (MSCI All Country World Ex-U.S. Small Cap (net) Index) for the one-, three- and five-year periods ended December 31, 2023.
Emerging Markets Leaders Fund. The Board considered that the Fund’s total return was below the median of its peer universe for the one-, three- and five-year periods ended December 31, 2023. The Board also considered that the Fund underperformed the benchmark (MSCI Emerging Markets (net) Index) for the one-, three- and five-year periods ended December 31, 2023. The Board also considered that the Fund’s underperformance was largely attributable to calendar years 2021, 2022 and 2023 offsetting outperformance in 2020 and 2019.
Emerging Markets Growth Fund. The Board considered that the Fund’s total return was below the median of its peer universe for the one- and three-year periods and above the median of its peer universe for the five-year period ended December 31, 2023. The Board also considered that the Fund underperformed the benchmark (MSCI Emerging Markets IMI (net) Index) for the one- and three-year periods and outperformed the benchmark for the five-year period ended December 31, 2023.
Emerging Markets ex China Growth Fund. The Board considered that the Fund’s total return was above the median of its peer universe and above the benchmark (MSCI Emerging Markets ex-China IMI Index) for the one-year period ended December 31, 2023. The Board considered that the Fund commenced operations on July 29, 2022, which provided a limited period of time to evaluate investment performance.
Emerging Markets Small Cap Growth Fund. The Board considered that the Fund’s total return was above the median of its peer universe for the one-, three- and five-year periods ended December 31, 2023. The Board also considered that the Fund underperformed the benchmark (MSCI Emerging Markets Small Cap (net) Index) for the one- and three-year periods and outperformed the benchmark for the five-year period ended December 31, 2023.
China Growth Fund. The Board considered that the Fund’s total return was below the median of its peer universe and below the benchmark (MSCI China All Shares (net) Index) for the one-year period ended December 31, 2023. The Board also considered that the Fund commenced operations on August 27, 2021, which provided a limited period of time to evaluate investment performance.
Emerging Markets Debt Fund. The Board considered that the Fund’s total return was above the median of its peer universe and above the benchmark (JPM EMBI Global Diversified (unhedged)) for the one-year period ended December 31, 2023. The Board also considered that the Fund commenced operations on May 25, 2021, which provided a limited period of time to evaluate investment performance.
Management Fees. The Board reviewed each Fund’s management fee and reviewed information comparing the management fee to those of a peer group of funds and a broader peer universe of funds provided by FUSE for Class I shares of the Funds (except for the Institutional International Growth Fund, which does not have share classes). The FUSE peer group for Class I shares of each Fund other than the Institutional International Growth Fund, and the peer group for the Institutional International Growth Fund, consisted of a group of funds with similar investment, operational and pricing characteristics and comparable asset levels, as determined by FUSE. In considering the FUSE information, the Board noted that the gross management fees for the Growth Fund, the Large Cap Growth Fund, the Mid Cap Value Fund, the Small Cap Value Fund, the Emerging Markets Leaders Fund, the Emerging Markets Growth Fund, the Emerging Markets Small Cap Growth Fund and the Emerging Markets Debt Fund were below the median gross management fees of their respective peer groups. The Board also noted that the gross management fees for the Global Leaders Fund, the International Small Cap Growth Fund, the Emerging Markets ex China Growth Fund and the China Growth Fund were equal to the median gross management fees of their respective peer groups. The Board further noted that the gross management fees for the Small-Mid Cap Core Fund, the Small-Mid Cap Growth Fund, the Small Cap Growth Fund, the International Leaders Fund, the International Growth Fund and the Institutional International Growth Fund were above the median gross management fees of their respective peer groups.
3

The Board noted the current and proposed contractual expense limitations for the share classes of the Funds. The Board considered that the Adviser proposed to contractually limit operating expenses until April 30, 2025 for each share class of the Funds (and for the Institutional International Growth Fund, which does not have share classes). The Board considered the amount of management fees waived and other expenses reimbursed by the Adviser on behalf of the Funds in 2023.
For each Fund, the Board also reviewed amounts charged by the Adviser to other pooled investment vehicles, including other registered funds for which the Adviser acts as a sub-adviser, and the Adviser’s fee schedule for institutional accounts. With respect to other pooled investment vehicles and institutional accounts, the Board considered the Adviser’s statements to the effect that the level of services provided to the Funds and the regulatory responsibilities associated with sponsoring registered investment companies were greater as compared to the work involved for other pooled investment vehicles, including other registered funds for which the Adviser acts as a sub-adviser, and institutional accounts. In addition, the Board considered the Adviser’s statements to the effect that institutional accounts are distributed differently, operate under different investment and regulatory structures and have different business risks as compared to the Funds and that there are responsibilities and duties involved in sponsoring a registered fund that are not present in sub-advising a registered fund.
On the basis of all the information provided, the Board concluded that each Fund’s management fee, coupled with the applicable expense limitations, was reasonable.
Profitability.With respect to the profitability of the Management Agreement to the Adviser, the Board considered the overall fees paid under the Management Agreement, including the estimated allocated costs of the services provided, management fees waived and other expenses reimbursed, if any, and profits realized by the Adviser from its relationship with the Trust as a whole and each Fund individually. The Board concluded that the estimated profits realized by the Adviser were not unreasonable
Economies of Scale. The Board considered the extent to which economies of scale would be realized as the Funds grow and whether fee levels reflect these economies of scale for the benefit of investors. The Board noted the Adviser’s statements to the effect that the resources required for the Adviser’s fundamental investment process typically increase as a Fund increases in size. The Board also considered that certain of the Funds were part of investment strategies that were capacity constrained by the Adviser so that opportunities for economies of scale were limited. The Board further considered that of the Funds that are subject to capacity constraints, the International Small Cap Growth Fund is closed to investors, except as noted in the Fund’s prospectus.
In considering whether fee levels reflect economies of scale for the benefit of Fund investors, the Board considered each Fund’s asset size, management fee breakpoints for applicable Funds, the expense limitations in place and net expense ratios. The Board concluded that in the aggregate the Funds’ fee levels reasonably reflect appropriate recognition of economies of scale.
Other Benefits. The Board considered benefits derived by the Adviser and its affiliates from their relationship with the Funds, including (1) receipt of research from brokerage firms; (2) soft dollars, which pertain primarily to the Funds investing in equity securities; (3) reimbursement of some intermediary fees in the nature of sub-transfer agency fees; (4) fees from Class N shares of the Funds to the Distributor pursuant to the Rule 12b-1 Plan, nearly all of which are paid to third parties; and (5) favorable media coverage. The Board determined that management fees were reasonable in light of these benefits.
Conclusion. Based upon all of the information considered and the conclusions reached, the Board determined that the terms of the Management Agreement continue to be fair and reasonable and that the continuation of the Management Agreement is in the best interests of each Fund.
4

Trustees and Officers (Unaudited). The Trustees and Officers of the William Blair Funds, their year of birth, their principal occupations during the last five years, their affiliations, if any, with William Blair, and other significant affiliations are setforth below. The address of each Trustee and Officer is 150 North Riverside Plaza, Chicago, Illinois 60606. 
Name and Year of Birth
Positions(s)
Held with
Trust
Term of
Office(1) and
Length of
Time
Served
Principal
Occupation(s)
During Past 5 Years
Number of
Portfolios
in Trust
Complex
Overseen
by Trustee
Other Directorships
Held by Trustee
During Past 5 Years*
Interested Trustees
Stephanie G. Braming,
CFA,
1970(2)
Chairman of
the Board and
President,
previously
Senior Vice
President
Chairman of
the Board and
President
since 2018,
and Senior
Vice
President
2014 to 2018
Global Head of Investment
Management since 2017,
portfolio manager (2014 to
2017) and Partner, William
Blair
19
Chairman, William Blair SICAV
Cissie Citardi,
1975(2)
Trustee
Since 2021
General Counsel (since 2021),
Deputy General Counsel (May
2020 to December 2020) and
Partner, William Blair;
formerly, General Counsel,
PineBridge Investments (2016-
2020)
19
Director, William Blair SICAV
Non-Interested Trustees
Vann A. Avedisian,
1964
Trustee
Since 2012
Co-founder and Partner,
Newbond Holdings (real estate
operations) (since 2021);
formerly, Principal, Highgate
Holdings (hotel investments)
(2009 to 2021); co-founder and
Managing Director, Oxford
Capital Partners Inc. (1994 to
2006)
19
Potbelly Sandwich Works (2001
to 2015 and since 2021)(3)
Kathleen T.Barr,
1955
Trustee
Trustee since
2013 and
Lead
Independent
Trustee since
2023
Retired; Chair Emeritus,
Independent Directors Council
(since 2022); formerly,
Chairman of the Governing
Council, Independent Directors
Council (2020 to 2022);
formerly, President, Productive
Capital Management, Inc.
(registered investment adviser
to public entities) and Owner,
KT Barr Consulting, LLC
(mutual fund and investment
management consulting) (2010
to 2013); prior thereto, Chief
Administrative Officer, Senior
Vice President and Senior
Managing Director of Allegiant
Asset Management Company
(merged with PNC Capital
Advisors, LLC in 2009) (2004
to 2010)
19
Muzinich BDC, Inc. (since
2019) and Muzinich Corporate
Lending Income Fund, Inc.
(since 2023); Board of
Governors, Investment
Company Institute (since 2019);
Professionally Managed
Portfolios (since 2018)
Daniel N. Leib,
1966(4)
Trustee and
Chair,
Nominating
and
Governance
Committee
Trustee since
2016 and
Chair of
Nominating
and
Governance
Committee
since 2023
Chief Executive Officer,
Donnelley Financial Solutions,
Inc. (since 2016); formerly,
Executive Vice President and
Chief Financial Officer (2011
to 2016) and Group Chief
Financial Officer (2009 to
2011), R.R.Donnelley & Sons
Company
19
Donnelley Financial Solutions,
Inc. (since 2016)
June 30, 2024
5
Semi-Annual

Name and Year of Birth
Positions(s)
Held with
Trust
Term of
Office(1) and
Length of
Time
Served
Principal
Occupation(s)
During Past 5 Years
Number of
Portfolios
in Trust
Complex
Overseen
by Trustee
Other Directorships
Held by Trustee
During Past 5 Years*
Dorri C. McWhorter,
1973
Trustee and
Chair,
Compliance
Committee
Trustee since
2019 and
Chair of
Compliance
Committee
since 2021
President and Chief Executive
Officer, YMCA of Metropolitan
Chicago (since 2021); formerly,
Chief Executive Officer,
YWCA Metropolitan Chicago
(2013 to 2021); Partner,
Crowe LLP (2008 to 2013)(5)
19
Highland Funds (since 2022);
Skyway Concession
Company, LLC (since 2018);
Illinois CPA Society (since
2017); Lifeway Foods, Inc.
(since 2020); LanzaTech Global
(since 2023)
Thomas J. Skelly,
1951
Trustee
Since 2007
Advisory Board Member for
various U.S. companies (since
2005); formerly, Managing
Partner of various divisions at
Accenture (1994 to 2004)
19
Mutual Trust Financial Group
(provider of insurance and
investment products)
Steven R.Zenz,
1954
Trustee and
Chair, Audit
Committee
Trustee since
2018 and
Chair of
Audit
Committee
since 2021
Consultant, Steven R.Zenz
Consulting LLC (merger and
acquisition transactions and
SEC reporting and filings)
(since 2011); formerly, Partner,
KPMG LLP (1987 to 2010)(6)
19
Engine Media Holdings, Inc.
(media group supporting
esports, news streaming and
gaming) (2020 to 2021);
Frankly Inc. (technology
products/services for media
industry) (2016 to 2020);
Insignia Systems, Inc. (in-store
advertising services for
consumer packaged goods
manufacturers) (2013 to 2019)

 
William Blair Investment Management, LLC and William Blair & Company, L.L.C. are collectively referred to in this section as “William Blair”,
each of which is a wholly owned subsidiary of WBC Holdings, L.P., which is wholly owned by certain William Blair employees (employee owners
are referred to as ‘partners’).
*
Includes directorships of public companies and other registered investment companies held during the past five years.
(1)
Each Trustee serves until the election and qualification of a successor, or until death, resignation or retirement, or removal as provided in the Trust’s
Declaration of Trust. Retirement for Independent Trustees occurs no later than at the conclusion of the calendar year that occurs after the earlier of
(a) the Independent Trustee’s 75th birthday or (b) the 17th anniversary of the date that the Independent Trustee became a member of the Board of
Trustees.
(2)
Ms. Braming and Ms. Citardi are interested persons of the Trust because they are partners of William Blair, and with respect to Ms. Braming also
due to her position as an Officer of the Trust.
(3)
On February 9, 2021, Potbelly Corporation (“Potbelly”) entered into a securities purchase agreement with accredited purchasers, pursuant to which
Potbelly agreed to issue and sell to the purchasers in a private placement an aggregate of (i) 3,249,668 shares of Potbelly’s common stock, par value
$0.01 per share and (ii) warrants to purchase an aggregate of 1,299,861 shares of common stock, for an aggregate purchase price of $15.9 million
(the “Offering”). The Offering closed on February 12, 2021. WBC acted as the sole placement agent for the Offering and received fees from Potbelly
of approximately $1,025,000.
(4)
The Trust and William Blair use Donnelley Financial Solutions, Inc. (“DFS’’) for financial printing and other services. DFS is a public company. The
Trust and William Blair in the aggregate paid DFS approximately $295,000 and $230,000 in 2022 and 2023, respectively, for the services provided.
DFS’s revenue was approximately $834 million in 2022 and $797 million in 2023. Mr. Leib, as the Chief Executive Officer of DFS, is not directly
involved in any of the services provided to the Trust or William Blair and his compensation is not materially affected by the fees DFS receives from
the Trust and William Blair.
(5)
As a former partner of the audit firm Crowe LLP (formerly, Crowe Horwath LLP), Ms. McWhorter received distributions of her capital in the firm
over time and those distributions were completed in March 2021. The Trust and William Blair made no payments to Crowe LLP over the past three
years.
(6)
The Trust engages KPMG to provide foreign tax services in Taiwan. KPMG does not provide audit or audit-related services to the Trust. Mr. Zenz is
a former partner of KPMG and receives pension/retirement funds from KPMG.
June 30, 2024
6
William Blair Funds

 
Name and Year of Birth
Position(s) Held
with Trust
Term of Office
and Length of
Time Served(1)
Principal Occupation(s)
During Past 5 Years
Officers
Alaina Anderson, CFA,
1975
Senior Vice President
Since 2021
Partner, William Blair
Marcelo Assalin, CFA,
1973
Senior Vice President
Since 2020
Partner, William Blair (since 2022); formerly,
Associate, William Blair (2020-2021); NN
Investment Partners (formerly, ING Investment
Management) (2013-2020)
Daniel Crowe, CFA,
1972
Senior Vice President
Since 2016
Partner, William Blair
Robert J. Duwa, CFA,
1967
Senior Vice President
Since 2019
Partner, William Blair
Simon Fennell,
1969
Senior Vice President
Since 2013
Partner, William Blair
David C. Fording, CFA,
1967
Senior Vice President
Since 2006
Partner, William Blair
James S.Golan, CFA,
1961
Senior Vice President
Since 2005
Partner, William Blair
William V. Heaphy, CFA,
1967
Senior Vice President
Since 2021
Associate, William Blair (since 2021); formerly,
Principal, Investment Counselors of Maryland, LLC
(1994-2021)
Kenneth J. McAtamney,
1966
Senior Vice President
Since 2008
Partner, William Blair
Todd M. McClone, CFA,
1968
Senior Vice President
Since 2005
Partner, William Blair
D.J. Neiman, CFA,
1975
Senior Vice President
Since 2021
Partner, William Blair
Casey K. Preyss, CFA,
1976
Senior Vice President
Since 2015
Partner, William Blair
David P. Ricci, CFA,
1958
Senior Vice President
Since 2006
Partner, William Blair
Lisa D. Rusch,
1970
Senior Vice President
Vice President
Since 2020
2018-2020
Partner, William Blair (since 2020); formerly,
Associate, William Blair
Hugo Scott-Gall,
1971
Senior Vice President
Since 2021
Partner, William Blair
Ward D. Sexton, CFA,
1974
Senior Vice President
Since 2016
Partner, William Blair
Andrew Siepker, CFA,
1981
Senior Vice President
Since 2022
Partner, William Blair
Mark C. Thompson, CFA,
1976
Senior Vice President
Since 2020
Partner, William Blair
Vivian Lin Thurston, CFA,
1972
Senior Vice President
Since 2021
Partner, William Blair
Dan Zelazny,
1971
Senior Vice President
Since 2019
Partner, William Blair (since 2024); formerly,
Associate, William Blair (2019-2023)
Nicholas Zimmerman, CFA,
1980
Senior Vice President
Since 2023
Partner, William Blair (since 2022); formerly,
Associate, William Blair
June 30, 2024
7
Semi-Annual

Name and Year of Birth
Position(s) Held
with Trust
Term of Office
and Length of
Time Served(1)
Principal Occupation(s)
During Past 5 Years
Paul Birchenough,
1982
Vice President
Since 2024
Associate, William Blair (since 2024); formerly,
Newton Investment Managers (2020-2024);
formerly, AXA Investment Managers (2011-2020)
Matthew Fleming, CFA,
1973
Vice President
Since 2022
Associate, William Blair (since 2021); formerly,
Investment Counselors of Maryland, LLC (2008-
2021)
Jared Lou, CFA,
1983
Vice President
Since 2024
Associate, William Blair (since 2020); formerly, NN
Investment Partners (2016-2020)
Marco Ruijer, CFA,
1975
Vice President
Since 2020
Associate, William Blair (since 2020); formerly, NN
Investment Partners (formerly, ING Investment
Management) (2013-2020)
Ian Smith,
1978
Vice President
Since 2024
Associate, William Blair (since 2024); formerly,
Newton Investment Managers (2020-2024);
formerly, AXA Investment Managers (2012-2020)
Walter R.Randall, Jr.,
1960
Chief Compliance
Officer and Assistant
Secretary
Since 2009
Associate, William Blair
Daniel Carey,
1977
Chief Legal Officer and
Assistant Secretary
Since 2023
Associate, William Blair
John M. Raczek,
1970
Treasurer
Assistant Treasurer
Since 2019
2010-2019
Associate, William Blair
Andrew T.Pfau,
1970
Secretary
Since 2009
Associate, William Blair
David M. Cihak,
1982
Assistant Treasurer
Since 2019
Associate, William Blair

 
(1)
The Trust’s Officers, except the Chief Compliance Officer, are elected annually by the Board of Trustees. The Trust’s Chief Compliance Officer is
designated by the Board of Trustees and may only be removed by action of the Board of Trustees, including a majority of Independent Trustees.
Length of Time Served for all Officers indicates the year the individual became an Officer of the Trust.
The Statement of Additional Information for the William Blair Funds includes additional information about the trustees and is available without charge by calling 1-800-635-2886 (in Massachusetts 1-800-635-2840) or by writing the Fund.
June 30, 2024
8
William Blair Funds

(Unaudited)
Additional Federal Income Tax Information:
Under Section 852(b)(3)(C) of the Code, the Funds hereby designate the following amounts as capital gain dividends for the fiscal year ended December 31, 2023 (in thousands): 
Fund
Capital Gain Dividend
Growth Fund
$24,248
Small-Mid Cap Growth Fund
151,303
Small Cap Growth Fund
11,518
Small Cap Value Fund
29,835
Global Leaders Fund
6,749
International Growth Fund
43,927
Institutional International Growth Fund
15,350
June 30, 2024
9
Semi-Annual

BOARD OF TRUSTEES
Vann A. Avedisian
Co-founder and Partner, Newbond Holdings
Kathleen T.Barr
Retired Senior Managing Director, PNC Capital Advisors, LLC
Stephanie G. Braming, CFA, Chairman and President
Partner, William Blair
Cissie Citardi
Partner, William Blair
Daniel N. Leib
Chief Executive Officer, Donnelley Financial Solutions, Inc.
Dorri C. McWhorter
President and Chief Executive Officer, YMCA of Metropolitan Chicago
Thomas J. Skelly
Retired Managing Partner, Accenture
Steven R.Zenz
Retired Partner, KPMG LLP

Officers
Alaina Anderson, CFA, Senior Vice President
Marcelo Assalin, CFA, Senior Vice President
Daniel Crowe, CFA, Senior Vice President
Robert J. Duwa, CFA, Senior Vice President
Simon Fennell, Senior Vice President
David C. Fording, CFA, Senior Vice President
James S.Golan, CFA, Senior Vice President
William V. Heaphy, CFA, Senior Vice President
Kenneth J. McAtamney, Senior Vice President
Todd M. McClone, CFA, Senior Vice President
D.J. Neiman, CFA, Senior Vice President
Casey K. Preyss, CFA, Senior Vice President
David P. Ricci, CFA, Senior Vice President
Lisa D. Rusch, Senior Vice President
Hugo Scott-Gall, Senior Vice President
Ward D. Sexton, CFA, Senior Vice President
Andrew Siepker, CFA, Senior Vice President
Mark C. Thompson, CFA, Senior Vice President
Vivian Lin Thurston, CFA, Senior Vice President
Dan Zelazny, Senior Vice President
Nicholas Zimmerman, CFA, Senior Vice President
Paul Birchenough, Vice President
Matthew Fleming, CFA, Vice President
Jared Lou, CFA, Vice President
Marco Ruijer, CFA, Vice President
Ian Smith, Vice President
John M. Raczek, Treasurer
Andrew T.Pfau, Secretary
David M. Cihak, Assistant Treasurer
Walter R.Randall, Jr., Chief Compliance Officer and Assistant Secretary
Daniel Carey, Chief Legal Officer and Assistant Secretary
Investment Adviser
William Blair Investment Management, LLC
Distributor
William Blair & Company, L.L.C.
Independent Registered Public Accounting Firm
Ernst & Young LLP
Transfer Agent
SS&C GIDS, Inc.
For customer assistance, call 1-800-635-2886
P.O. Box 219137
Kansas City, Missouri 64105-1307
June 30, 2024
10
William Blair Funds

William Blair Funds
U.S. EQUITY
Growth Fund
Large Cap Growth Fund
Mid Cap Value Fund
Small-Mid Cap Core Fund
Small-Mid Cap Growth Fund
Small-Mid Cap Value Fund
Small Cap Growth Fund
Small Cap Value Fund
GLOBAL EQUITY
Global Leaders Fund
INTERNATIONAL EQUITY
International Leaders Fund
International Growth Fund
Institutional International Growth Fund
International Small Cap Growth Fund
Emerging Markets Leaders Fund
Emerging Markets Growth Fund
Emerging Markets ex China Growth Fund
Emerging Markets Small Cap Growth Fund
China Growth Fund
EMERGING MARKETS DEBT
Emerging Markets Debt Fund
 
+1 800 742 7272
williamblairfunds.com
©William Blair & Company, L.L.C., distributor
150 North Riverside Plaza
Chicago, Illinois 60606
103188



Item 8.    Changes in and Disagreements with Accountants for Open-End Management Investment Companies.

Not applicable.



Item 9.    Proxy Disclosures for Open-End Management Investment Companies.

Not applicable.



Item 10.    Remuneration Paid to Directors, Officers, and Others of Open-End Management Investment Companies.

Disclosure in response to this item is included under Item 7 of this Form N-CSR.



Item 11.    Statement Regarding Basis for Approval of Investment Advisory Contract.

Disclosure in response to this item is included under Item 7 of this Form N-CSR.



Item 12.    Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies

Not applicable to this Registrant, insofar as the Registrant is not a closed-end management investment company.



Item 13.    Portfolio Managers of Closed-End Management Investment Companies

Not applicable to this Registrant, insofar as the Registrant is not a closed-end management investment company.



Item 14.    Purchase of Equity Securities by Closed-End Management Investment Companies and Affiliated Purchasers

Not applicable to this Registrant, insofar as the Registrant is not a closed-end management investment company.



Item 15.    Submission of Matters to a Vote of Security Holders

There have been no material changes to the procedures by which shareholders may recommend nominees to the Registrant’s Board of Trustees since the Registrant last provided disclosure in response to this item.



Item 16.    Controls and Procedures

The Registrant’s principal executive and principal financial officers, or persons performing similar functions, have concluded that the Registrant’s Disclosure Controls and Procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the “1940 Act”) (17 CFR 270.30a-3(c)) are effective, as of a date within 90 days of the filing date of this report that includes the disclosure required by this paragraph, based on their evaluation of these controls and procedures required by Rule 30a-3 (b) under the 1940 Act (17 CFR 270.30a-3(b) and Rules 13a-15(b) or 15d-15(b) under the Securities Exchange Act of 1934, as amended to date (17 CFR 240.13a-15(b) or 240.15d-15(b)).

There were no changes in the Registrant’s internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act (17 CFR 270.30a-3(d)) that occurred during the period covered by this report that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting.



Item 17.    Disclosure of Securities Lending Activities for Closed-End Management Investment Companies

Not applicable to this Registrant, insofar as the Registrant is not a closed-end management investment company.



Item 18.    Recovery of Erroneously Awarded Compensation

Not applicable.

Not applicable.



 

Item 19.    Exhibits

19. (a) (1) Not applicable.

19. (a) (2) Not applicable to this Registrant.

19. (a) (3) (1) Certification of Principal Executive Officer Required by Rule 30a-2(a) of the Investment Company Act of 1940 is filed as an exhibit hereto.

 

19. (a) (3) (2) Certification of Principal Financial Officer Required by Rule 30a-2(a) of the Investment Company Act of 1940 is filed as an exhibit hereto.

 

19. (a) (4) Not applicable.

19. (a) (5) Not applicable.

19. (b) Certifications of the Principal Executive Officer and Principal Financial Officer of the issuer as required by Rule 30a-2(b) of the Investment Company Act of 1940 are filed as exhibits hereto.

 

 
 

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

William Blair Funds

/s/ Stephanie G. Braming
By: Stephanie G. Braming
President
(Principal Executive Officer)

Date: September 6, 2024

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.

/s/ Stephanie G. Braming
Stephanie G. Braming
President
(Principal Executive Officer)

Date: September 6, 2024
/s/ John M. Raczek
By: John M. Raczek
Treasurer
(Principal Financial Officer)

Date: September 6, 2024