BLACKROCK FUNDS
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:
811-05742
Name of Fund:
BlackRock FundsSM
BlackRock Sustainable Advantage Large Cap Core Fund
Fund Address:  100 Bellevue Parkway, Wilmington, DE 19809
Name and address of agent for service:  John M. Perlowski, Chief Executive Officer, BlackRock FundsSM, 50 Hudson Yards, New York, NY 10001
Registrant's telephone number, including area code:
(800) 441-7762
Date of fiscal year end:
5/31/2025
Date of reporting period:
11/30/2024
Item 1 — Report to Stockholders
(a) The Report to Shareholders is attached herewith
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BlackRock Sustainable Advantage Large Cap Core Fund
Institutional Shares | BIRIX
Semi-Annual Shareholder Report — November 30, 2024
This semi-annual shareholder report contains important information about BlackRock Sustainable Advantage Large Cap Core Fund (the “Fund”) for the period of June 1, 2024 to November 30, 2024. You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
What were the Fund costs for the last six months ?
(based on a hypothetical $10,000 investment)
Class name Costs of a $10,000
investment		 Costs paid as a percentage of a
$10,000 investment
Institutional Shares $26 0.48%(a)
​(a)
Annualized.
Fund performance
Average annual total returns
6-Month
Total
Returns		 1 Year 5 Years Since Fund
Inception
Institutional Shares 14.28 % 33.72 % 15.75 % 14.84 %
Russell 1000® Index 15.83 34.40 15.58 14.74
Key Fund statistics
Net Assets $931,924,428
Number of Portfolio Holdings 208
Portfolio Turnover Rate 57%
The Fund commenced operations on October 5, 2015.
The Fund’s returns shown prior to December 1, 2021, are the returns of the Fund when it followed a different investment objective and different investment strategies under the name BlackRock Advantage ESG U.S. Equity Fund.
Past performance is not an indication of future results. Performance results may include adjustments made for financial reporting purposes in accordance with U.S. generally accepted accounting principles. Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. Visit blackrock.com for more recent performance information.
What did the Fund invest in?
(as of November 30, 2024)
Sector allocation
Sector(a) Percent of
Net Assets
Information Technology 29.7 %
Financials 14.7 %
Consumer Discretionary 12.3 %
Health Care 10.6 %
Industrials 10.3 %
Communication Services 8.6 %
Consumer Staples 4.8 %
Energy 2.8 %
Materials 2.4 %
Real Estate 2.0 %
Utilities 1.2 %
Short-Term Securities 0.5 %
Liabilities in Excess of Other Assets 0.1
Ten largest holdings
Security(b) Percent of
Net Assets
Apple, Inc. 7.1 %
Microsoft Corp. 6.7 %
NVIDIA Corp. 6.4 %
Amazon.com, Inc. 4.1 %
Meta Platforms, Inc., Class A 2.4 %
Alphabet, Inc., Class A 2.3 %
Mastercard, Inc., Class A 1.7 %
Bank of America Corp. 1.7 %
Eli Lilly & Co. 1.6 %
Tesla, Inc. 1.6 %
​(a)
For purposes of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes.
​(b)
Excludes short-term securities.
Additional information
If you wish to view additional information about the Fund, including but not limited to financial statements, the Fund’s prospectus, and proxy voting policies and procedures, please visit blackrock.com/fundreports. For proxy voting records, visit blackrock.com/proxyrecords.
The Fund is not sponsored, endorsed, issued, sold, or promoted by FTSE International Limited and its affiliates, nor does this company make any representation regarding the advisability of investing in the Fund. BlackRock is not affiliated with the company listed above.
©2024 BlackRock, Inc. or its affiliates. All rights reserved. BLACKROCK is a registered trademark of BlackRock, Inc. or its affiliates. All other trademarks are those of their respective owners.
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BlackRock Sustainable Advantage Large Cap Core Fund
Institutional Shares | BIRIX
Semi-Annual Shareholder Report — November 30, 2024
BIRIX-11/24-SAR
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BlackRock Sustainable Advantage Large Cap Core Fund
Investor A Shares | BIRAX
Semi-Annual Shareholder Report — November 30, 2024
This semi-annual shareholder report contains important information about BlackRock Sustainable Advantage Large Cap Core Fund (the “Fund”) for the period of June 1, 2024 to November 30, 2024. You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
What were the Fund costs for the last six months ?
(based on a hypothetical $10,000 investment)
Class name Costs of a $10,000
investment		 Costs paid as a percentage of a
$10,000 investment
Investor A Shares $39 0.73%(a)
​(a)
Annualized.
Fund performance
Average annual total returns
6-Month
Total
Returns		 1 Year 5 Years Since Fund
Inception
Investor A Shares 14.16 % 33.40 % 15.46 % 14.55 %
Investor A Shares (with sales charge) 8.17 26.39 14.22 13.87
Russell 1000® Index 15.83 34.40 15.58 14.74
Key Fund statistics
Net Assets $931,924,428
Number of Portfolio Holdings 208
Portfolio Turnover Rate 57%
Assuming maximum sales charges. Average annual total returns with and without sales charges reflect reductions for service fees.
The Fund commenced operations on October 5, 2015.
The Fund’s returns shown prior to December 1, 2021, are the returns of the Fund when it followed a different investment objective and different investment strategies under the name BlackRock Advantage ESG U.S. Equity Fund.
Past performance is not an indication of future results. Performance results may include adjustments made for financial reporting purposes in accordance with U.S. generally accepted accounting principles. Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. Visit blackrock.com for more recent performance information.
What did the Fund invest in?
(as of November 30, 2024)
Sector allocation
Sector(a) Percent of
Net Assets
Information Technology 29.7 %
Financials 14.7 %
Consumer Discretionary 12.3 %
Health Care 10.6 %
Industrials 10.3 %
Communication Services 8.6 %
Consumer Staples 4.8 %
Energy 2.8 %
Materials 2.4 %
Real Estate 2.0 %
Utilities 1.2 %
Short-Term Securities 0.5 %
Liabilities in Excess of Other Assets 0.1
Ten largest holdings
Security(b) Percent of
Net Assets
Apple, Inc. 7.1 %
Microsoft Corp. 6.7 %
NVIDIA Corp. 6.4 %
Amazon.com, Inc. 4.1 %
Meta Platforms, Inc., Class A 2.4 %
Alphabet, Inc., Class A 2.3 %
Mastercard, Inc., Class A 1.7 %
Bank of America Corp. 1.7 %
Eli Lilly & Co. 1.6 %
Tesla, Inc. 1.6 %
​(a)
For purposes of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes.
​(b)
Excludes short-term securities.
Additional information
If you wish to view additional information about the Fund, including but not limited to financial statements, the Fund’s prospectus, and proxy voting policies and procedures, please visit blackrock.com/fundreports. For proxy voting records, visit blackrock.com/proxyrecords.
The Fund is not sponsored, endorsed, issued, sold, or promoted by FTSE International Limited and its affiliates, nor does this company make any representation regarding the advisability of investing in the Fund. BlackRock is not affiliated with the company listed above.
©2024 BlackRock, Inc. or its affiliates. All rights reserved. BLACKROCK is a registered trademark of BlackRock, Inc. or its affiliates. All other trademarks are those of their respective owners.
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BlackRock Sustainable Advantage Large Cap Core Fund
Investor A Shares | BIRAX
Semi-Annual Shareholder Report — November 30, 2024
BIRAX-11/24-SAR
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BlackRock Sustainable Advantage Large Cap Core Fund
Investor C Shares | BIRCX
Semi-Annual Shareholder Report — November 30, 2024
This semi-annual shareholder report contains important information about BlackRock Sustainable Advantage Large Cap Core Fund (the “Fund”) for the period of June 1, 2024 to November 30, 2024. You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
What were the Fund costs for the last six months ?
(based on a hypothetical $10,000 investment)
Class name Costs of a $10,000
investment		 Costs paid as a percentage of a
$10,000 investment
Investor C Shares $79 1.48%(a)
​(a)
Annualized.
Fund performance
Average annual total returns
6-Month
Total
Returns		 1 Year 5 Years Since Fund
Inception
Investor C Shares 13.68 % 32.42 % 14.60 % 13.81 %
Investor C Shares (with sales charge) 12.68 31.42 14.60 13.81
Russell 1000® Index 15.83 34.40 15.58 14.74
Key Fund statistics
Net Assets $931,924,428
Number of Portfolio Holdings 208
Portfolio Turnover Rate 57%
Assuming maximum sales charges. Average annual total returns with and without sales charges reflect reductions for distribution and service fees.
The Fund commenced operations on October 5, 2015.
The Fund’s returns shown prior to December 1, 2021, are the returns of the Fund when it followed a different investment objective and different investment strategies under the name BlackRock Advantage ESG U.S. Equity Fund.
Past performance is not an indication of future results. Performance results may include adjustments made for financial reporting purposes in accordance with U.S. generally accepted accounting principles. Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. Visit blackrock.com for more recent performance information.
What did the Fund invest in?
(as of November 30, 2024)
Sector allocation
Sector(a) Percent of
Net Assets
Information Technology 29.7 %
Financials 14.7 %
Consumer Discretionary 12.3 %
Health Care 10.6 %
Industrials 10.3 %
Communication Services 8.6 %
Consumer Staples 4.8 %
Energy 2.8 %
Materials 2.4 %
Real Estate 2.0 %
Utilities 1.2 %
Short-Term Securities 0.5 %
Liabilities in Excess of Other Assets 0.1
Ten largest holdings
Security(b) Percent of
Net Assets
Apple, Inc. 7.1 %
Microsoft Corp. 6.7 %
NVIDIA Corp. 6.4 %
Amazon.com, Inc. 4.1 %
Meta Platforms, Inc., Class A 2.4 %
Alphabet, Inc., Class A 2.3 %
Mastercard, Inc., Class A 1.7 %
Bank of America Corp. 1.7 %
Eli Lilly & Co. 1.6 %
Tesla, Inc. 1.6 %
​(a)
For purposes of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes.
​(b)
Excludes short-term securities.
Additional information
If you wish to view additional information about the Fund, including but not limited to financial statements, the Fund’s prospectus, and proxy voting policies and procedures, please visit blackrock.com/fundreports. For proxy voting records, visit blackrock.com/proxyrecords.
The Fund is not sponsored, endorsed, issued, sold, or promoted by FTSE International Limited and its affiliates, nor does this company make any representation regarding the advisability of investing in the Fund. BlackRock is not affiliated with the company listed above.
©2024 BlackRock, Inc. or its affiliates. All rights reserved. BLACKROCK is a registered trademark of BlackRock, Inc. or its affiliates. All other trademarks are those of their respective owners.
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BlackRock Sustainable Advantage Large Cap Core Fund
Investor C Shares | BIRCX
Semi-Annual Shareholder Report — November 30, 2024
BIRCX-11/24-SAR
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BlackRock Sustainable Advantage Large Cap Core Fund
Class K Shares | BIRKX
Semi-Annual Shareholder Report — November 30, 2024
This semi-annual shareholder report contains important information about BlackRock Sustainable Advantage Large Cap Core Fund (the “Fund”) for the period of June 1, 2024 to November 30, 2024. You can find additional information about the Fund at blackrock.com/fundreports. You can also request this information by contacting us at (800) 441‑7762.
What were the Fund costs for the last six months ?
(based on a hypothetical $10,000 investment)
Class name Costs of a $10,000
investment		 Costs paid as a percentage of a
$10,000 investment
Class K Shares $23 0.43%(a)
​(a)
Annualized.
Fund performance
Average annual total returns
6-Month
Total
Returns		 1 Year 5 Years Since Fund
Inception
Class K Shares 14.29 % 33.76 % 15.80 % 14.89 %
Russell 1000® Index 15.83 34.40 15.58 14.74
Key Fund statistics
Net Assets $931,924,428
Number of Portfolio Holdings 208
Portfolio Turnover Rate 57%
The Fund commenced operations on October 5, 2015.
The Fund’s returns shown prior to December 1, 2021, are the returns of the Fund when it followed a different investment objective and different investment strategies under the name BlackRock Advantage ESG U.S. Equity Fund.
Performance shown prior to the Class K Shares inception date of March 28, 2016 is that of Institutional Shares. The performance of Class K Shares would be substantially similar to Institutional Shares because Class K Shares and Institutional Shares invest in the same portfolio of securities and performance would only differ to the extent that Class K Shares and Institutional Shares have different expenses. The actual returns of Class K Shares would have been higher than those of the Institutional Shares because Class K Shares have lower expenses than the Institutional Shares.
Past performance is not an indication of future results. Performance results may include adjustments made for financial reporting purposes in accordance with U.S. generally accepted accounting principles. Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares. Visit blackrock.com for more recent performance information.
What did the Fund invest in?
(as of November 30, 2024)
Sector allocation
Sector(a) Percent of
Net Assets
Information Technology 29.7 %
Financials 14.7 %
Consumer Discretionary 12.3 %
Health Care 10.6 %
Industrials 10.3 %
Communication Services 8.6 %
Consumer Staples 4.8 %
Energy 2.8 %
Materials 2.4 %
Real Estate 2.0 %
Utilities 1.2 %
Short-Term Securities 0.5 %
Liabilities in Excess of Other Assets 0.1
Ten largest holdings
Security(b) Percent of
Net Assets
Apple, Inc. 7.1 %
Microsoft Corp. 6.7 %
NVIDIA Corp. 6.4 %
Amazon.com, Inc. 4.1 %
Meta Platforms, Inc., Class A 2.4 %
Alphabet, Inc., Class A 2.3 %
Mastercard, Inc., Class A 1.7 %
Bank of America Corp. 1.7 %
Eli Lilly & Co. 1.6 %
Tesla, Inc. 1.6 %
​(a)
For purposes of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes.
​(b)
Excludes short-term securities.
Additional information
If you wish to view additional information about the Fund, including but not limited to financial statements, the Fund’s prospectus, and proxy voting policies and procedures, please visit blackrock.com/fundreports. For proxy voting records, visit blackrock.com/proxyrecords.
The Fund is not sponsored, endorsed, issued, sold, or promoted by FTSE International Limited and its affiliates, nor does this company make any representation regarding the advisability of investing in the Fund. BlackRock is not affiliated with the company listed above.
©2024 BlackRock, Inc. or its affiliates. All rights reserved. BLACKROCK is a registered trademark of BlackRock, Inc. or its affiliates. All other trademarks are those of their respective owners.
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BlackRock Sustainable Advantage Large Cap Core Fund
Class K Shares | BIRKX
Semi-Annual Shareholder Report — November 30, 2024
BIRKX-11/24-SAR

(b) Not Applicable

 

Item 2 –

Code of Ethics – Not Applicable to this semi-annual report

 

Item 3 –

Audit Committee Financial Expert – Not Applicable to this semi-annual report

 

Item 4 –

Principal Accountant Fees and Services – Not Applicable to this semi-annual report

 

Item 5 –

Audit Committee of Listed Registrant – Not Applicable

 

Item 6 –

Investments

(a) The registrant’s Schedule of Investments is included as part of the Financial Statements and Financial Highlights for Open-End Management Investment Companies filed under Item 7 of this Form.

(b) Not Applicable due to no such divestments during the semi-annual period covered since the previous Form N-CSR filing.

 

Item 7 –

Financial Statements and Financial Highlights for Open-End Management Investment Companies

(a) The registrant’s Financial Statements are attached herewith.

(b) The registrant’s Financial Highlights are attached herewith.

 
November 30, 2024 
2024 Semi-Annual Financial
Statements and Additional
Information (Unaudited)
 
BlackRock FundsSM
• BlackRock Sustainable Advantage Large Cap Core Fund
 
Not FDIC Insured • May Lose Value • No Bank Guarantee
Table of Contents 
Page
 
3
4
9
11
12
13
17
25
27
2
Derivative Financial Instruments
The Fund may invest in various derivative financial instruments. These instruments are used to obtain exposure to a security, commodity, index, market, and/or other assets without owning or taking physical custody of securities, commodities and/or other referenced assets or to manage market, equity, credit, interest rate, foreign currency exchange rate, commodity and/or other risks. Derivative financial instruments may give rise to a form of economic leverage and involve risks, including the imperfect correlation between the value of a derivative financial instrument and the underlying asset, possible default of the counterparty to the transaction or illiquidity of the instrument. Pursuant to Rule 18f-4 under the 1940 Act, among other things, the Fund must either use derivative financial instruments with embedded leverage in a limited manner or comply with an outer limit on fund leverage risk based on value-at-risk. The Fund’s successful use of a derivative financial instrument depends on the investment adviser’s ability to predict pertinent market movements accurately, which cannot be assured. The use of these instruments may result in losses greater than if they had not been used, may limit the amount of appreciation the Fund can realize on an investment and/or may result in lower distributions paid to shareholders. The Fund’s investments in these instruments, if any, are discussed in detail in the Notes to Financial Statements.
BlackRock Sustainable Advantage Large Cap Core Fund
Derivative Financial Instruments
3
Schedule of Investments (unaudited)
November 30, 2024
BlackRock Sustainable Advantage Large Cap Core Fund
(Percentages shown are based on Net Assets)

 
Security
 
 
Shares
Value
Common Stocks
Aerospace & Defense — 1.8%
HEICO Corp.
 
3,139
$ 858,108
HEICO Corp., Class A
 
26,873
5,673,697
Northrop Grumman Corp.
 
17,694
8,663,867
RTX Corp.
 
11,762
1,432,964
 
 
16,628,636
Air Freight & Logistics — 0.5%
Expeditors International of Washington, Inc.
 
32,599
3,965,343
United Parcel Service, Inc., Class B
 
5,256
713,344
 
 
4,678,687
Automobile Components — 0.5%
BorgWarner, Inc.
 
121,365
4,165,247
Lear Corp.
 
5,358
524,227
 
 
4,689,474
Automobiles — 1.6%
Tesla, Inc.(a)
 
42,207
14,568,168
Banks — 4.1%
Bank of America Corp.
 
326,152
15,495,482
Citigroup, Inc.
 
24,286
1,721,149
First Horizon Corp.
 
30,162
637,323
FNB Corp.
 
8,862
151,983
JPMorgan Chase & Co.
 
42,175
10,531,941
PNC Financial Services Group, Inc.
 
23,620
5,071,686
Wells Fargo & Co.
 
60,413
4,601,658
 
 
38,211,222
Beverages — 0.6%
Coca-Cola Europacific Partners PLC
 
12,210
947,252
Constellation Brands, Inc., Class A
 
16,066
3,871,103
PepsiCo, Inc.
 
5,339
872,659
 
 
5,691,014
Biotechnology — 1.9%
AbbVie, Inc.
 
6,571
1,202,033
Amgen, Inc.
 
12,127
3,430,364
BioMarin Pharmaceutical, Inc.(a)
 
25,129
1,659,268
Blueprint Medicines Corp.(a)
 
16,244
1,565,597
Gilead Sciences, Inc.
 
47,419
4,390,051
Moderna, Inc.(a)
 
3,717
160,054
Natera, Inc.(a)
 
11,668
1,957,657
Neurocrine Biosciences, Inc.(a)
 
16,286
2,064,251
United Therapeutics Corp.(a)
 
2,241
830,268
 
 
17,259,543
Broadline Retail — 4.4%
Amazon.com, Inc.(a)
 
185,561
38,576,276
eBay, Inc.
 
26,027
1,647,249
MercadoLibre, Inc.(a)
 
450
893,327
 
 
41,116,852
Building Products — 1.1%
Lennox International, Inc.
 
2,103
1,402,974
Owens Corning
 
7,739
1,591,293
Trane Technologies PLC
 
17,472
7,272,196
 
 
10,266,463
Capital Markets — 3.3%
Cboe Global Markets, Inc.
 
6,166
1,330,931
Charles Schwab Corp.
 
9,140
756,426
Interactive Brokers Group, Inc., Class A
 
4,067
777,163
Intercontinental Exchange, Inc.
 
15,451
2,486,993
Invesco Ltd.
 
225,125
4,072,511
Security
 
 
Shares
Value
Capital Markets (continued)
Moody’s Corp.
 
1,634
$ 816,967
Morgan Stanley
 
49,363
6,496,665
MSCI, Inc., Class A
 
5,817
3,546,218
S&P Global, Inc.
 
19,701
10,293,970
 
 
30,577,844
Chemicals — 1.3%
Ecolab, Inc.
 
20,292
5,048,041
FMC Corp.
 
7,839
463,206
Huntsman Corp.
 
163,855
3,208,281
LyondellBasell Industries NV, Class A
 
42,833
3,569,702
 
 
12,289,230
Commercial Services & Supplies — 0.8%
Cintas Corp.
 
33,188
7,493,519
Communications Equipment — 1.0%
Arista Networks, Inc.(a)
 
6,614
2,684,094
Motorola Solutions, Inc.
 
13,932
6,961,820
 
 
9,645,914
Construction & Engineering — 1.4%
AECOM
 
40,927
4,787,231
Comfort Systems USA, Inc.
 
1,482
731,026
EMCOR Group, Inc.
 
10,280
5,244,034
MasTec, Inc.(a)
 
15,644
2,253,675
 
 
13,015,966
Consumer Finance — 1.8%
American Express Co.
 
42,764
13,029,335
OneMain Holdings, Inc.
 
60,151
3,449,660
 
 
16,478,995
Consumer Staples Distribution & Retail — 2.8%
Costco Wholesale Corp.
 
13,397
13,020,277
Kroger Co.
 
27,526
1,681,288
Target Corp.
 
3,572
472,611
Walmart, Inc.
 
121,724
11,259,470
 
 
26,433,646
Containers & Packaging — 0.3%
Crown Holdings, Inc.
 
27,797
2,559,826
Diversified Consumer Services — 0.0%
H&R Block, Inc.
 
7,446
441,399
Diversified Telecommunication Services — 0.7%
Verizon Communications, Inc.
 
138,777
6,153,372
Electric Utilities — 0.9%
Constellation Energy Corp.
 
512
131,359
Exelon Corp.
 
207,112
8,193,350
 
 
8,324,709
Electrical Equipment — 1.2%
Acuity Brands, Inc.
 
7,054
2,262,147
Eaton Corp. PLC
 
11,059
4,151,770
Emerson Electric Co.
 
39,399
5,224,307
 
 
11,638,224
Electronic Equipment, Instruments & Components — 0.2%
Flex Ltd.(a)
 
4,553
177,431
TE Connectivity PLC
 
12,893
1,948,390
 
 
2,125,821
Energy Equipment & Services — 0.0%
Halliburton Co.
 
14,043
447,410
4
2024 BlackRock Semi-Annual Financial Statements and Additional Information
Schedule of Investments (unaudited)(continued)
November 30, 2024
BlackRock Sustainable Advantage Large Cap Core Fund
(Percentages shown are based on Net Assets)
Security
 
 
Shares
Value
Entertainment(a) — 0.7%
Netflix, Inc.
 
6,776
$ 6,009,025
ROBLOX Corp., Class A
 
5,807
291,105
Roku, Inc., Class A
 
5,417
373,935
 
 
6,674,065
Financial Services — 2.8%
Berkshire Hathaway, Inc., Class B(a)
 
9,210
4,448,614
Mastercard, Inc., Class A
 
29,963
15,968,481
Visa, Inc., Class A
 
17,583
5,540,052
 
 
25,957,147
Food Products — 0.0%
General Mills, Inc.
 
4,935
326,993
Ground Transportation — 0.9%
CSX Corp.
 
49,098
1,794,532
Uber Technologies, Inc.(a)
 
91,174
6,560,881
 
 
8,355,413
Health Care Equipment & Supplies — 2.2%
Boston Scientific Corp.(a)
 
100,404
9,102,627
Edwards Lifesciences Corp.(a)(b)
 
2,334
166,531
Medtronic PLC
 
53,147
4,599,341
Stryker Corp.
 
16,598
6,508,906
 
 
20,377,405
Health Care Providers & Services — 2.3%
Cardinal Health, Inc.
 
30,914
3,778,927
Centene Corp.(a)
 
47,413
2,844,780
Cigna Group
 
8,221
2,777,054
Elevance Health, Inc.
 
15,484
6,301,369
HCA Healthcare, Inc.
 
13,389
4,381,149
UnitedHealth Group, Inc.
 
1,787
1,090,427
 
 
21,173,706
Hotels, Restaurants & Leisure — 2.1%
Airbnb, Inc., Class A(a)
 
5,132
698,517
Booking Holdings, Inc.
 
2,006
10,435,172
Boyd Gaming Corp.
 
1
74
Chipotle Mexican Grill, Inc.(a)
 
38,329
2,358,000
DoorDash, Inc., Class A(a)
 
2,242
404,636
McDonald’s Corp.
 
6,539
1,935,609
Royal Caribbean Cruises Ltd.
 
653
159,371
Wingstop, Inc.
 
2,965
974,803
Yum! Brands, Inc.
 
16,383
2,276,254
 
 
19,242,436
Household Durables — 1.0%
D.R. Horton, Inc.
 
6,124
1,033,609
Lennar Corp., Class A
 
10,486
1,828,653
NVR, Inc.(a)
 
259
2,392,015
PulteGroup, Inc.
 
7,284
985,307
Toll Brothers, Inc.
 
20,578
3,398,868
 
 
9,638,452
Household Products — 1.3%
Clorox Co.
 
15,084
2,521,592
Colgate-Palmolive Co.
 
99,765
9,640,292
 
 
12,161,884
Industrial Conglomerates — 0.3%
3M Co.
 
18,530
2,474,311
Honeywell International, Inc.
 
829
193,099
 
 
2,667,410
Security
 
 
Shares
Value
Industrial REITs — 1.3%
Lineage, Inc.
 
16,828
$ 1,067,232
Prologis, Inc.
 
92,927
10,852,015
 
 
11,919,247
Insurance — 2.8%
Allstate Corp.
 
12,707
2,635,305
Hartford Financial Services Group, Inc.
 
21,234
2,618,365
MetLife, Inc.
 
31,844
2,809,596
Progressive Corp.
 
47,906
12,880,965
Travelers Cos., Inc.
 
19,912
5,297,388
 
 
26,241,619
Interactive Media & Services — 6.3%
Alphabet, Inc., Class A
 
125,416
21,189,033
Alphabet, Inc., Class C
 
81,808
13,947,446
Meta Platforms, Inc., Class A
 
39,261
22,548,378
Pinterest, Inc., Class A(a)
 
3,701
112,214
Snap, Inc., Class A(a)
 
77,381
913,870
 
 
58,710,941
IT Services — 0.7%
Accenture PLC, Class A
 
18,174
6,585,712
Life Sciences Tools & Services — 0.7%
Agilent Technologies, Inc.
 
18,689
2,578,521
IQVIA Holdings, Inc.(a)
 
18,641
3,743,859
Thermo Fisher Scientific, Inc.
 
402
212,911
 
 
6,535,291
Machinery — 0.7%
Caterpillar, Inc.
 
4,176
1,695,915
Oshkosh Corp.
 
6,457
733,580
Parker-Hannifin Corp.
 
2,772
1,948,439
Westinghouse Air Brake Technologies Corp.
 
3,034
608,681
Xylem, Inc./New York
 
14,087
1,785,527
 
 
6,772,142
Media — 1.0%
Comcast Corp., Class A
 
95,182
4,110,911
Fox Corp., Class A
 
76,983
3,627,439
Fox Corp., Class B
 
2,514
112,451
New York Times Co., Class A
 
7,885
427,840
News Corp., Class A
 
23,825
699,264
 
 
8,977,905
Metals & Mining — 0.8%
Newmont Corp.
 
38,201
1,602,150
Nucor Corp.
 
37,851
5,855,171
 
 
7,457,321
Multi-Utilities — 0.3%
Consolidated Edison, Inc.
 
28,948
2,911,879
Oil, Gas & Consumable Fuels — 2.7%
Cheniere Energy, Inc.
 
2,055
460,340
Chevron Corp.
 
70,811
11,466,425
ConocoPhillips
 
43,239
4,684,513
Exxon Mobil Corp.
 
23,811
2,808,746
Ovintiv, Inc.
 
30,687
1,393,803
Phillips 66
 
3,422
458,480
Targa Resources Corp.
 
12,596
2,573,363
Valero Energy Corp.
 
8,982
1,249,217
Williams Cos., Inc.
 
8,305
486,009
 
 
25,580,896
Schedule of Investments
5
Schedule of Investments (unaudited)(continued)
November 30, 2024
BlackRock Sustainable Advantage Large Cap Core Fund
(Percentages shown are based on Net Assets)
Security
 
 
Shares
Value
Pharmaceuticals — 3.6%
Bristol-Myers Squibb Co.
 
41,760
$ 2,473,027
Eli Lilly & Co.
 
18,631
14,818,166
Merck & Co., Inc.
 
72,142
7,332,513
Pfizer, Inc.
 
271,721
7,121,808
Zoetis, Inc., Class A
 
9,549
1,673,462
 
 
33,418,976
Professional Services — 1.3%
Automatic Data Processing, Inc.
 
1,712
525,464
Booz Allen Hamilton Holding Corp., Class A
 
12,702
1,882,182
Equifax, Inc.
 
8,684
2,271,387
ExlService Holdings, Inc.(a)
 
10,477
485,714
Leidos Holdings, Inc.
 
1,670
276,218
Maximus, Inc.
 
52,884
3,939,858
Robert Half, Inc.
 
37,078
2,766,390
TransUnion
 
1,888
191,632
 
 
12,338,845
Real Estate Management & Development(a) — 0.2%
CBRE Group, Inc., Class A
 
8,414
1,177,876
Zillow Group, Inc., Class C
 
5,241
443,965
 
 
1,621,841
Retail REITs — 0.6%
Brixmor Property Group, Inc.
 
109,813
3,302,077
Simon Property Group, Inc.
 
10,678
1,960,481
 
 
5,262,558
Semiconductors & Semiconductor Equipment — 10.0%
Advanced Micro Devices, Inc.(a)
 
9,963
1,366,674
Applied Materials, Inc.
 
39,514
6,903,491
Broadcom, Inc.
 
39,647
6,425,986
Intel Corp.
 
71,001
1,707,574
Lam Research Corp.
 
81,920
6,052,250
Micron Technology, Inc.
 
37,798
3,702,314
Monolithic Power Systems, Inc.
 
1,451
823,646
NVIDIA Corp.
 
433,450
59,924,462
QUALCOMM, Inc.
 
36,677
5,814,405
Silicon Laboratories, Inc.(a)
 
3,290
364,038
 
 
93,084,840
Software — 10.3%
Adobe, Inc.(a)
 
16,391
8,456,609
Autodesk, Inc.(a)
 
3,353
978,741
Crowdstrike Holdings, Inc., Class A(a)
 
3,377
1,168,341
Fortinet, Inc.(a)
 
15,679
1,490,289
Guidewire Software, Inc.(a)
 
12,672
2,571,022
HubSpot, Inc.(a)
 
543
391,530
Intuit, Inc.
 
8,654
5,553,531
Microsoft Corp.
 
147,476
62,450,187
Nutanix, Inc., Class A(a)
 
22,596
1,475,067
Palo Alto Networks, Inc.(a)
 
3,072
1,191,383
Pegasystems, Inc.
 
3,139
298,111
ServiceNow, Inc.(a)
 
9,324
9,784,978
Workday, Inc., Class A(a)
 
2,370
592,476
 
 
96,402,265
Security
 
 
Shares
Value
Specialty Retail — 2.0%
Abercrombie & Fitch Co., Class A(a)
 
2,680
$ 401,169
Bath & Body Works, Inc.
 
46,096
1,670,519
Best Buy Co., Inc.
 
12,635
1,137,150
Carvana Co., Class A(a)
 
2,554
665,113
Dick’s Sporting Goods, Inc.
 
3,549
735,495
Gap, Inc.
 
15,596
378,203
Home Depot, Inc.
 
29,117
12,494,978
Murphy USA, Inc.
 
504
276,091
Ross Stores, Inc.
 
1,566
242,526
TJX Cos., Inc.
 
4,385
551,151
 
 
18,552,395
Technology Hardware, Storage & Peripherals — 7.4%
Apple, Inc.
 
279,367
66,302,170
NetApp, Inc.
 
20,101
2,465,187
 
 
68,767,357
Textiles, Apparel & Luxury Goods — 0.7%
Deckers Outdoor Corp.(a)
 
28,407
5,566,636
Skechers USA, Inc., Class A(a)
 
11,233
716,890
Tapestry, Inc.
 
4,231
263,506
 
 
6,547,032
Trading Companies & Distributors — 0.2%
Ferguson Enterprises, Inc.
 
5,949
1,284,568
WW Grainger, Inc.
 
510
614,723
 
 
1,899,291
Total Long-Term Investments — 99.4%
(Cost: $655,895,874)
926,899,198
Short-Term Securities
Money Market Funds — 0.5%
BlackRock Cash Funds: Institutional, SL Agency Shares,
4.79%(c)(d)(e)
 
8,034
8,037
BlackRock Liquidity Funds, T-Fund, Institutional Shares,
4.53%(c)(d)
 
4,526,495
4,526,495
Total Short-Term Securities — 0.5%
(Cost: $4,534,531)
4,534,532
Total Investments — 99.9%
(Cost: $660,430,405)
931,433,730
Other Assets Less Liabilities — 0.1%
490,698
Net Assets — 100.0%
$ 931,924,428
 
(a)
Non-income producing security.
(b)
All or a portion of this security is on loan.
(c)
Affiliate of the Fund.
(d)
Annualized 7-day yield as of period end.
(e)
All or a portion of this security was purchased with the cash collateral from loaned
securities.
For purposes of this report, industry and sector sub-classifications may differ from those utilized by the Fund for compliance purposes.
6
2024 BlackRock Semi-Annual Financial Statements and Additional Information
Schedule of Investments (unaudited)(continued)
November 30, 2024
BlackRock Sustainable Advantage Large Cap Core Fund
 
Affiliates
Investments in issuers considered to be affiliate(s) of the Fund during the six months ended November 30, 2024 for purposes of Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows: 
Affiliated Issuer
Value at
05/31/24
Purchases
at Cost
Proceeds
from Sales
Net
Realized
Gain (Loss)
Change in
Unrealized
Appreciation
(Depreciation)
Value at
11/30/24
Shares
Held at
11/30/24
Income
Capital Gain
Distributions
from
Underlying
Funds
BlackRock Cash Funds: Institutional, SL Agency Shares
$ —
$ 7,584
(a)
$ —
$ 452
$ 1
$ 8,037
8,034
$ 1,125
(b)
$ —
BlackRock Liquidity Funds, T-Fund, Institutional Shares
3,926,379
600,116
(a)
—
—
—
4,526,495
4,526,495
107,684
—
 
$ 452
$ 1
$ 4,534,532
$ 108,809
$ —
 
(a)
Represents net amount purchased (sold).
(b)
All or a portion represents securities lending income earned from the reinvestment of cash collateral from loaned securities, net of fees and collateral investment expenses, and other
payments to and from borrowers of securities.
Derivative Financial Instruments Outstanding as of Period End
Futures Contracts 
Description
Number of
Contracts
Expiration
Date
Notional
Amount (000)
Value/
Unrealized
Appreciation
(Depreciation)
Long Contracts 
S&P 500 E-Mini Index
19
12/20/24
$ 5,749
$ 59,714
Derivative Financial Instruments Categorized by Risk Exposure
As of period end, the fair values of derivative financial instruments located in the Statement of Assets and Liabilities were as follows: 
 
Commodity
Contracts
Credit
Contracts
Equity
Contracts
Foreign
Currency
Exchange
Contracts
Interest
Rate
Contracts
Other
Contracts
Total
Assets — Derivative Financial Instruments
Futures contracts
Unrealized appreciation on futures contracts(a)
$ —
$ —
$ 59,714
$ —
$ —
$ —
$ 59,714
 
(a)
Net cumulative unrealized appreciation (depreciation) on futures contracts and centrally cleared swaps, if any, are reported in the Schedule of Investments. In the Statement of Assets
and Liabilities, only current day’s variation margin is reported in receivables or payables and the net cumulative unrealized appreciation (depreciation) is included in accumulated
earnings (loss).
For the period ended November 30, 2024, the effect of derivative financial instruments in the Statement of Operations was as follows: 
 
Commodity
Contracts
Credit
Contracts
Equity
Contracts
Foreign
Currency
Exchange
Contracts
Interest
Rate
Contracts
Other
Contracts
Total
Net Realized Gain (Loss) from:
Futures contracts
$ —
$ —
$ 451,831
$ —
$ —
$ —
$ 451,831
Net Change in Unrealized Appreciation (Depreciation) on:
Futures contracts
$ —
$ —
$ 18,832
$ —
$ —
$ —
$ 18,832
Average Quarterly Balances of Outstanding Derivative Financial Instruments 
Futures contracts:
Average notional value of contracts — long
$5,563,438
For more information about the Fund’s investment risks regarding derivative financial instruments, refer to the Notes to Financial Statements.
Schedule of Investments
7
Schedule of Investments (unaudited)(continued)
November 30, 2024
BlackRock Sustainable Advantage Large Cap Core Fund
 
Fair Value Hierarchy as of Period End
Various inputs are used in determining the fair value of financial instruments at the measurement date. For a description of the input levels and information about the Fund’s policy regarding valuation of financial instruments, refer to the Notes to Financial Statements.
The following table summarizes the Fund’s financial instruments categorized in the fair value hierarchy. The breakdown of the Fund’s financial instruments into major categories is disclosed in the Schedule of Investments above. 
 
Level 1
Level 2
Level 3
Total
Assets
Investments 
Long-Term Investments 
Common Stocks
$ 926,899,198
$ —
$ —
$ 926,899,198
Short-Term Securities 
Money Market Funds
4,534,532
—
—
4,534,532
 
$931,433,730
$—
$—
$931,433,730
Derivative Financial Instruments(a)
Assets 
Equity Contracts
$ 59,714
$ —
$ —
$ 59,714
 
(a)
Derivative financial instruments are futures contracts. Futures contracts are valued at the unrealized appreciation (depreciation) on the instrument.
See notes to financial statements.
8
2024 BlackRock Semi-Annual Financial Statements and Additional Information
Statement of Assets and Liabilities (unaudited)
November 30, 2024
 
 
BlackRock
Sustainable
Advantage
Large Cap
Core Fund
ASSETS
Investments, at value — unaffiliated(a)(b)
$ 926,899,198
Investments, at value — affiliated(c)
4,534,532
Cash pledged for futures contracts
314,000
Receivables:
Investments sold
63,783
Securities lending income — affiliated
396
Capital shares sold
983,323
Dividends — unaffiliated
1,080,597
Dividends — affiliated
15,586
Variation margin on futures contracts
34,675
Prepaid expenses
46,519
Total assets
933,972,609
LIABILITIES
Collateral on securities loaned
7,355
Payables:
Accounting services fees
57,177
Administration fees
31,137
Capital shares redeemed
1,322,571
Custodian fees
23,194
Investment advisory fees
261,298
Trustees’ and Officer’s fees
3,043
Other accrued expenses
31,649
Professional fees
10,181
Service and distribution fees
47,719
Transfer agent fees
252,857
Total liabilities
2,048,181
Commitments and contingent liabilities
NET ASSETS
$ 931,924,428
NET ASSETS CONSIST OF
Paid-in capital
$ 591,588,574
Accumulated earnings
340,335,854
NET ASSETS
$ 931,924,428
(a) Investments, at cost—unaffiliated
$655,895,874
(b) Securities loaned, at value
$7,135
(c) Investments, at cost—affiliated
$4,534,531
Statement of Assets and Liabilities
9
Statement of Assets and Liabilities (unaudited) (continued)
November 30, 2024
 
 
BlackRock
Sustainable
Advantage
Large Cap
Core Fund
NET ASSET VALUE
Institutional
Net assets
$ 524,565,773
Shares outstanding
22,781,145
Net asset value
$ 23.03
Shares authorized
Unlimited
Par value
$0.001
Investor A
Net assets
$ 157,052,900
Shares outstanding
6,865,388
Net asset value
$ 22.88
Shares authorized
Unlimited
Par value
$0.001
Investor C
Net assets
$ 19,169,223
Shares outstanding
853,561
Net asset value
$ 22.46
Shares authorized
Unlimited
Par value
$0.001
Class K
Net assets
$ 231,136,532
Shares outstanding
10,027,239
Net asset value
$ 23.05
Shares authorized
Unlimited
Par value
$0.001
See notes to financial statements.
10
2024 BlackRock Semi-Annual Financial Statements and Additional Information
Statement of Operations (unaudited)
Six Months Ended November 30, 2024
 
 
BlackRock
Sustainable
Advantage
Large Cap
Core Fund
INVESTMENT INCOME
Dividends — unaffiliated
$5,589,684
Dividends — affiliated
107,684
Interest — unaffiliated
6,274
Securities lending income — affiliated — net
1,125
Total investment income
5,704,767
EXPENSES
Investment advisory
1,763,593
Transfer agent — class specific
372,278
Service and distribution — class specific
278,996
Administration
182,626
Administration — class specific
88,180
Accounting services
70,133
Professional
44,145
Registration
40,543
Custodian
26,876
Printing and postage
23,481
Trustees and Officer
7,318
Miscellaneous
14,759
Total expenses
2,912,928
Less:
Administration fees waived by the Manager — class specific
(88,180
)
Fees waived and/or reimbursed by the Manager
(277,554
)
Transfer agent fees waived and/or reimbursed by the Manager — class specific
(205,080
)
Total expenses after fees waived and/or reimbursed
2,342,114
Net investment income
3,362,653
REALIZED AND UNREALIZED GAIN (LOSS)
Net realized gain from:
Investments — unaffiliated
59,252,537
Investments — affiliated
452
Futures contracts
451,831
 
59,704,820
Net change in unrealized appreciation (depreciation) on:
Investments — unaffiliated
54,815,464
Investments — affiliated
1
Futures contracts
18,832
 
54,834,297
Net realized and unrealized gain
114,539,117
NET INCREASE IN NET ASSETS RESULTING FROM OPERATIONS
$117,901,770
See notes to financial statements.
Statement of Operations
11
Statement of Changes in Net Assets
 
 
BlackRock Sustainable Advantage
Large Cap Core Fund
 
Six Months Ended
11/30/24
(unaudited)
Year Ended
05/31/24
INCREASE (DECREASE) IN NET ASSETS
OPERATIONS
Net investment income
$3,362,653
$10,982,344
Net realized gain
59,704,820
181,008,008
Net change in unrealized appreciation (depreciation)
54,834,297
124,096,993
Net increase in net assets resulting from operations
117,901,770
316,087,345
DISTRIBUTIONS TO SHAREHOLDERS(a)
Institutional
(52,931,355
)
(6,486,019
)
Investor A
(15,219,008
)
(952,242
)
Investor C
(2,018,536
)
(19,760
)
Class K
(21,763,925
)
(5,940,918
)
Decrease in net assets resulting from distributions to shareholders
(91,932,824
)
(13,398,939
)
CAPITAL SHARE TRANSACTIONS
Net increase (decrease) in net assets derived from capital share transactions
65,685,935
(688,391,612
)
NET ASSETS
Total increase (decrease) in net assets
91,654,881
(385,703,206
)
Beginning of period
840,269,547
1,225,972,753
End of period
$931,924,428
$840,269,547
 
(a)
Distributions for annual periods determined in accordance with U.S. federal income tax regulations.
See notes to financial statements.
12
2024 BlackRock Semi-Annual Financial Statements and Additional Information
Financial Highlights
(For a share outstanding throughout each period)
 
 
BlackRock Sustainable Advantage Large Cap Core Fund
 
Institutional
 
Six Months Ended
11/30/24
(unaudited)
Year Ended
05/31/24
Year Ended
05/31/23
Year Ended
05/31/22
Year Ended
05/31/21
Year Ended
05/31/20
 
Net asset value, beginning of period
$22.50
$17.59
$17.56
$19.27
$13.75
$12.64
Net investment income(a)
0.09
0.18
0.22
0.16
0.16
0.18
Net realized and unrealized gain (loss)
2.90
4.93
0.01
(0.62
)
6.00
1.35
Net increase (decrease) from investment operations
2.99
5.11
0.23
(0.46
)
6.16
1.53
Distributions(b)
From net investment income
(0.09
)
(0.20
)
(0.20
)
(0.11
)
(0.16
)
(0.16
)
From net realized gain
(2.37
)
—
—
(1.14
)
(0.48
)
(0.26
)
Total distributions
(2.46
)
(0.20
)
(0.20
)
(1.25
)
(0.64
)
(0.42
)
Net asset value, end of period
$23.03
$22.50
$17.59
$17.56
$19.27
$13.75
Total Return(c)
Based on net asset value
14.28
%(d)
29.27
%
1.38
%
(2.88
)%
45.64
%
12.16
%
Ratios to Average Net Assets(e)
Total expenses
0.62
%(f)
0.61
%
0.63
%
0.66
%
0.73
%
0.79
%
Total expenses after fees waived and/or reimbursed
0.48
%(f)
0.48
%
0.48
%
0.48
%
0.50
%
0.55
%
Net investment income
0.82
%(f)
0.93
%
1.29
%
0.84
%
0.93
%
1.31
%
Supplemental Data
Net assets, end of period (000)
$524,566
$486,029
$622,091
$472,353
$227,993
$102,475
Portfolio turnover rate
57
%
108
%
120
%
99
%
160
%
159
%
 
(a)
Based on average shares outstanding.
(b)
Distributions for annual periods determined in accordance with U.S. federal income tax regulations.
(c)
Where applicable, assumes the reinvestment of distributions.
(d)
Not annualized.
(e)
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.
(f)
Annualized.
See notes to financial statements.
Financial Highlights
13
Financial Highlights (continued)
(For a share outstanding throughout each period)
 
 
BlackRock Sustainable Advantage Large Cap Core Fund (continued)
 
Investor A
 
Six Months Ended
11/30/24
(unaudited)
Year Ended
05/31/24
Year Ended
05/31/23
Year Ended
05/31/22
Year Ended
05/31/21
Year Ended
05/31/20
 
Net asset value, beginning of period
$22.37
$17.50
$17.47
$19.18
$13.70
$12.60
Net investment income(a)
0.06
0.13
0.17
0.11
0.11
0.14
Net realized and unrealized gain (loss)
2.89
4.90
0.01
(0.60
)
5.98
1.35
Net increase (decrease) from investment operations
2.95
5.03
0.18
(0.49
)
6.09
1.49
Distributions(b)
From net investment income
(0.07
)
(0.16
)
(0.15
)
(0.08
)
(0.13
)
(0.13
)
From net realized gain
(2.37
)
—
—
(1.14
)
(0.48
)
(0.26
)
Total distributions
(2.44
)
(0.16
)
(0.15
)
(1.22
)
(0.61
)
(0.39
)
Net asset value, end of period
$22.88
$22.37
$17.50
$17.47
$19.18
$13.70
Total Return(c)
Based on net asset value
14.16
%(d)
28.90
%
1.12
%
(3.09
)%
45.25
%
11.89
%
Ratios to Average Net Assets(e)
Total expenses
0.87
%(f)
0.84
%
0.86
%
0.87
%
0.98
%
1.08
%
Total expenses after fees waived and/or reimbursed
0.73
%(f)
0.73
%
0.73
%
0.73
%
0.74
%
0.80
%
Net investment income
0.56
%(f)
0.66
%
1.04
%
0.58
%
0.68
%
1.06
%
Supplemental Data
Net assets, end of period (000)
$157,053
$138,563
$96,245
$108,997
$62,539
$19,030
Portfolio turnover rate
57
%
108
%
120
%
99
%
160
%
159
%
 
(a)
Based on average shares outstanding.
(b)
Distributions for annual periods determined in accordance with U.S. federal income tax regulations.
(c)
Where applicable, excludes the effects of any sales charges and assumes the reinvestment of distributions.
(d)
Not annualized.
(e)
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.
(f)
Annualized.
See notes to financial statements.
14
2024 BlackRock Semi-Annual Financial Statements and Additional Information
Financial Highlights (continued)
(For a share outstanding throughout each period)
 
 
BlackRock Sustainable Advantage Large Cap Core Fund (continued)
 
Investor C
 
Six Months Ended
11/30/24
(unaudited)
Year Ended
05/31/24
Year Ended
05/31/23
Year Ended
05/31/22
Year Ended
05/31/21
Year Ended
05/31/20
 
Net asset value, beginning of period
$22.02
$17.22
$17.20
$18.92
$13.54
$12.46
Net investment income (loss)(a)
(0.02
)
(0.02
)
0.05
(0.03
)
(0.01
)
0.04
Net realized and unrealized gain (loss)
2.83
4.84
0.00
(b)
(0.60
)
5.90
1.34
Net increase (decrease) from investment operations
2.81
4.82
0.05
(0.63
)
5.89
1.38
Distributions(c)
From net investment income
—
(0.02
)
(0.03
)
—
(0.03
)
(0.04
)
From net realized gain
(2.37
)
—
—
(1.09
)
(0.48
)
(0.26
)
Total distributions
(2.37
)
(0.02
)
(0.03
)
(1.09
)
(0.51
)
(0.30
)
Net asset value, end of period
$22.46
$22.02
$17.22
$17.20
$18.92
$13.54
Total Return(d)
Based on net asset value
13.68
%(e)
28.01
%
0.33
%
(3.79
)%
44.13
%
11.11
%
Ratios to Average Net Assets(f)
Total expenses
1.61
%(g)
1.60
%
1.63
%
1.63
%
1.72
%
1.83
%
Total expenses after fees waived and/or reimbursed
1.48
%(g)
1.48
%
1.48
%
1.48
%
1.50
%
1.55
%
Net investment income (loss)
(0.19
)%(g)
(0.08
)%
0.30
%
(0.18
)%
(0.08
)%
0.30
%
Supplemental Data
Net assets, end of period (000)
$19,169
$18,681
$17,110
$21,305
$15,926
$6,082
Portfolio turnover rate
57
%
108
%
120
%
99
%
160
%
159
%
 
(a)
Based on average shares outstanding.
(b)
Amount is less than $0.005 per share.
(c)
Distributions for annual periods determined in accordance with U.S. federal income tax regulations.
(d)
Where applicable, excludes the effects of any sales charges and assumes the reinvestment of distributions.
(e)
Not annualized.
(f)
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.
(g)
Annualized.
See notes to financial statements.
Financial Highlights
15
Financial Highlights (continued)
(For a share outstanding throughout each period)
 
 
BlackRock Sustainable Advantage Large Cap Core Fund (continued)
 
Class K
 
Six Months Ended
11/30/24
(unaudited)
Year Ended
05/31/24
Year Ended
05/31/23
Year Ended
05/31/22
Year Ended
05/31/21
Year Ended
05/31/20
 
Net asset value, beginning of period
$22.52
$17.61
$17.58
$19.28
$13.76
$12.65
Net investment income(a)
0.10
0.20
0.22
0.17
0.17
0.18
Net realized and unrealized gain (loss)
2.90
4.92
0.02
(0.61
)
6.00
1.36
Net increase (decrease) from investment operations
3.00
5.12
0.24
(0.44
)
6.17
1.54
Distributions(b)
From net investment income
(0.10
)
(0.21
)
(0.21
)
(0.12
)
(0.17
)
(0.17
)
From net realized gain
(2.37
)
—
—
(1.14
)
(0.48
)
(0.26
)
Total distributions
(2.47
)
(0.21
)
(0.21
)
(1.26
)
(0.65
)
(0.43
)
Net asset value, end of period
$23.05
$22.52
$17.61
$17.58
$19.28
$13.76
Total Return(c)
Based on net asset value
14.29
%(d)
29.30
%
1.43
%
(2.80
)%
45.68
%
12.20
%
Ratios to Average Net Assets(e)
Total expenses
0.52
%(f)
0.50
%
0.51
%
0.55
%
0.64
%
0.74
%
Total expenses after fees waived and/or reimbursed
0.43
%(f)
0.43
%
0.43
%
0.43
%
0.43
%
0.50
%
Net investment income
0.86
%(f)
1.02
%
1.30
%
0.89
%
0.97
%
1.38
%
Supplemental Data
Net assets, end of period (000)
$231,137
$196,996
$490,527
$76,992
$33,710
$1,632
Portfolio turnover rate
57
%
108
%
120
%
99
%
160
%
159
%
 
(a)
Based on average shares outstanding.
(b)
Distributions for annual periods determined in accordance with U.S. federal income tax regulations.
(c)
Where applicable, assumes the reinvestment of distributions.
(d)
Not annualized.
(e)
Excludes fees and expenses incurred indirectly as a result of investments in underlying funds.
(f)
Annualized.
See notes to financial statements.
16
2024 BlackRock Semi-Annual Financial Statements and Additional Information
Notes to Financial Statements (unaudited)
 
1.
ORGANIZATION
BlackRock FundsSM (the “Trust”) is registered under the Investment Company Act of 1940, as amended (the “1940 Act”), as an open-end management investment company.  The Trust is organized as a Massachusetts business trust.  BlackRock Sustainable Advantage Large Cap Core Fund (the “Fund”) is a series of the Trust.  The Fund is classified as diversified.
The Fund offers multiple classes of shares.  All classes of shares have identical voting, dividend, liquidation and other rights and are subject to the same terms and conditions, except that certain classes bear expenses related to the shareholder servicing and distribution of such shares.  Institutional and Class K Shares are sold only to certain eligible investors.  Investor A and Investor C Shares bear certain expenses related to shareholder servicing of such shares, and Investor C Shares also bear certain expenses related to the distribution of such shares.  Investor A and Investor C Shares are generally available through financial intermediaries.  Each class has exclusive voting rights with respect to matters relating to its shareholder servicing and distribution expenditures (except that Investor C shareholders may vote on material changes to the Investor A Shares distribution and service plan). 
Share Class
Initial Sales Charge
CDSC
Conversion Privilege
Institutional and Class K Shares
No
No
None
Investor A Shares
Yes
No(a)
None
Investor C Shares
No
Yes(b)
To Investor A Shares after approximately 8 years
 
(a)
Investor A Shares may be subject to a contingent deferred sales charge (“CDSC”) for certain redemptions where no initial sales charge was paid at the time of purchase.
(b)
A CDSC of 1.00% is assessed on certain redemptions of Investor C Shares made within one year after purchase.
The Fund, together with certain other registered investment companies advised by BlackRock Advisors, LLC (the “Manager”) or its affiliates, is included in a complex of funds referred to as the BlackRock Multi-Asset Complex.
2.
SIGNIFICANT ACCOUNTING POLICIES
The financial statements are prepared in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”), which may require management to make estimates and assumptions that affect the reported amounts of assets and liabilities in the financial statements, disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of increases and decreases in net assets from operations during the reporting period. Actual results could differ from those estimates. The Fund is considered an investment company under U.S. GAAP and follows the accounting and reporting guidance applicable to investment companies. Below is a summary of significant accounting policies:
Investment Transactions and Income Recognition:  For financial reporting purposes, investment transactions are recorded on the dates the transactions are executed.  Realized gains and losses on investment transactions are determined using the specific identification method.  Dividend income and capital gain distributions, if any, are recorded on the ex-dividend dates. Non-cash dividends, if any, are recorded on the ex-dividend dates at fair value.  Upon notification from issuers, a portion of the dividend income received from a real estate investment trust may be redesignated as a reduction of cost of the related investment and/or realized gain.  Interest income, including amortization and accretion of premiums and discounts on debt securities, is recognized daily on an accrual basis.  Income, expenses and realized and unrealized gains and losses are allocated daily to each class based on its relative net assets.
Collateralization: If required by an exchange or counterparty agreement, the Fund may be required to deliver/deposit cash and/or securities to/with an exchange, or broker-dealer or custodian as collateral for certain investments.
Distributions:  Distributions paid by the Fund are recorded on the ex-dividend dates.  The character and timing of distributions are determined in accordance with U.S. federal income tax regulations, which may differ from U.S. GAAP.
Indemnifications: In the normal course of business, the Fund enters into contracts that contain a variety of representations that provide general indemnification. The Fund’s maximum exposure under these arrangements is unknown because it involves future potential claims against the Fund, which cannot be predicted with any certainty.
Other:  Expenses directly related to the Fund or its classes are charged to the Fund or the applicable class. Expenses directly related to the Fund and other shared expenses prorated to the Fund are allocated daily to each class based on its relative net assets or other appropriate methods. Other operating expenses shared by several funds, including other funds managed by the Manager, are prorated among those funds on the basis of relative net assets or other appropriate methods.
3.
INVESTMENT VALUATION AND FAIR VALUE MEASUREMENTS
Investment Valuation Policies:  The Fund’s investments are valued at fair value (also referred to as “market value” within the financial statements) each day that the Fund is open for business and, for financial reporting purposes, as of the report date. U.S. GAAP defines fair value as the price a fund would receive to sell an asset or pay to transfer a liability in an orderly transaction between market participants at the measurement date. The Board of  Trustees of the Trust (the “Board”) has approved the designation of the Fund’s Manager  as the valuation designee for the Fund.  The Fund determines the fair values of its financial instruments using various independent dealers or pricing services under the Manager’s policies. If a security’s market price is not readily available or does not otherwise accurately represent the fair value of the security, the security will be valued in accordance with the Manager’s policies and procedures as reflecting fair value. The Manager has formed a committee (the “Valuation Committee”) to develop pricing policies and procedures and to oversee the pricing function for all financial instruments, with assistance from other BlackRock pricing committees. 
Notes to Financial Statements
17
Notes to Financial Statements (unaudited) (continued)
 
Fair Value Inputs and Methodologies: The following methods and inputs are used to establish the fair value of the Fund’s assets and liabilities:
•Equity investments traded on a recognized securities exchange are valued at that day’s official closing price, as applicable, on the exchange where the stock is primarily traded. Equity investments traded on a recognized exchange for which there were no sales on that day may be valued at the last trade or last available bid (long positions) or ask (short positions) price.
•Investments in open-end U.S. mutual funds (including money market funds) are valued at that day’s net asset value (“NAV”).
•Futures contracts are valued based on that day’s last reported settlement or trade price on the exchange where the contract is traded.
If events (e.g., market volatility, company announcement or a natural disaster) occur that are expected to materially affect the value of such investment, or in the event that application of these methods of valuation results in a price for an investment that is deemed not to be representative of the market value of such investment, or if a price is not available, the investment will be valued by the Valuation Committee in accordance with the Manager’s policies and procedures as reflecting fair value (“Fair Valued Investments”). The fair valuation approaches that may be used by the Valuation Committee include market approach, income approach and cost approach. Valuation techniques such as discounted cash flow, use of market comparables and matrix pricing are types of valuation approaches and are typically used in determining fair value. When determining the price for Fair Valued Investments, the Valuation Committee seeks to determine the price that the Fund might reasonably expect to receive or pay from the current sale or purchase of that asset or liability in an arm’s-length transaction. Fair value determinations shall be based upon all available factors that the Valuation Committee deems relevant and consistent with the principles of fair value measurement as of the measurement date.  
Fair Value Hierarchy: Various inputs are used in determining the fair value of financial instruments at the measurement date. These inputs to valuation techniques are categorized into a fair value hierarchy consisting of three broad levels for financial reporting purposes as follows:
•Level 1 – Unadjusted price quotations in active markets/exchanges that the Fund has the ability to access for identical assets or liabilities;
•Level 2 – Inputs other than quoted prices included within level 1 that are observable for the asset or liability, either directly or indirectly; and
•Level 3 – Inputs that are unobservable and significant to the entire fair value measurement for the asset or liability (including the Valuation Committee’s assumptions used in determining the fair value of financial instruments).
The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). Accordingly, the degree of judgment exercised in determining fair value is greatest for instruments categorized in Level 3. The inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, for disclosure purposes, the fair value hierarchy classification is determined based on the lowest level input that is significant to the fair value measurement in its entirety.  Investments classified within Level 3 have significant unobservable inputs used by the Valuation Committee in determining the price for Fair Valued Investments. Level 3 investments include equity or debt issued by privately held companies or funds that may not have a secondary market and/or may have a limited number of investors.  The categorization of a value determined for financial instruments is based on the pricing transparency of the financial instruments and is not necessarily an indication of the risks associated with investing in those securities.
4.
SECURITIES AND OTHER INVESTMENTS
Securities Lending: The Fund may lend its securities to approved borrowers, such as brokers, dealers and other financial institutions. The borrower pledges and maintains with the Fund collateral consisting of cash, an irrevocable letter of credit issued by a bank, or securities issued or guaranteed by the U.S. Government. The initial collateral received by the Fund is required to have a value of at least 102% of the current value of the loaned securities for securities traded on U.S. exchanges and a value of at least 105% for all other securities. The collateral is maintained thereafter at a value equal to at least 100% of the current market value of the securities on loan. The market value of the loaned securities is determined at the close of each business day of the Fund and any additional required collateral is delivered to the Fund, or excess collateral returned by the Fund, on the next business day. During the term of the loan, the Fund is entitled to all distributions made on or in respect of the loaned securities, but does not receive interest income on securities received as collateral. Loans of securities are terminable at any time and the borrower, after notice, is required to return borrowed securities within the standard time period for settlement of securities transactions.
As of period end, any securities on loan were collateralized by cash and/or U.S. Government obligations. Cash collateral invested by the securities lending agent, BlackRock Investment Management, LLC (“BIM”), if any, is disclosed in the Schedule of Investments. Any non-cash collateral received cannot be sold, re-invested or pledged by the Fund, except in the event of borrower default. The securities on loan, if any, are disclosed in the Fund’s Schedule of Investments. The market value of any securities on loan and the value of related collateral, if any, are shown separately in the  Statement of Assets and Liabilities as a component of investments at value – unaffiliated and collateral on securities loaned, respectively.
Securities lending transactions are entered into by the Fund under Master Securities Lending Agreements (each, an “MSLA”), which provide the right, in the event of default (including bankruptcy or insolvency), for the non-defaulting party to liquidate the collateral and calculate a net exposure to the defaulting party or request additional collateral. In the event that a borrower defaults, the Fund, as lender, would offset the market value of the collateral received against the market value of the securities loaned. When the value of the collateral is greater than that of the market value of the securities loaned, the lender is left with a net amount payable to the defaulting party. However, bankruptcy or insolvency laws of a particular jurisdiction may impose restrictions on or prohibitions against such a right of offset in the event of an MSLA counterparty’s bankruptcy or insolvency. Under the MSLA, absent an event of default, the borrower can resell or re-pledge the loaned securities, and the Fund can reinvest cash collateral received in connection with loaned securities. Upon an event of default, the parties’ obligations to return the securities or collateral to the other party are extinguished, and the parties can
18
2024 BlackRock Semi-Annual Financial Statements and Additional Information
Notes to Financial Statements (unaudited) (continued)
 
resell or re-pledge the loaned securities or the collateral received in connection with the loaned securities in order to satisfy the defaulting party’s net payment obligation for all transactions under the MSLA. The defaulting party remains liable for any deficiency. 
Counterparty
Securities
Loaned at Value
Cash Collateral
Received
Non-Cash Collateral
Received, at Fair Value
Net
Amount
Credit Suisse Securities (USA) LLC
$ 7,135
$ (7,135
)
$ —
$ —
The risks of securities lending include the risk that the borrower may not provide additional collateral when required or may not return the securities when due. To mitigate these risks, the Fund benefits from a borrower default indemnity provided by BIM. BIM’s indemnity allows for full replacement of the securities loaned to the extent the collateral received does not cover the value on the securities loaned in the event of borrower default. The Fund could incur a loss if the value of an investment purchased with cash collateral falls below the market value of the loaned securities or if the value of an investment purchased with cash collateral falls below the value of the original cash collateral received. Such losses are borne entirely by the Fund.
5.
DERIVATIVE FINANCIAL INSTRUMENTS
The Fund engages in various portfolio investment strategies using derivative contracts both to increase the returns of the Fund and/or to manage its exposure to certain risks such as credit risk, equity risk, interest rate risk, foreign currency exchange rate risk, commodity price risk or other risks (e.g., inflation risk). Derivative financial instruments categorized by risk exposure are included in the Schedule of Investments. These contracts may be transacted on an exchange or over-the-counter (“OTC”).
Futures Contracts: Futures contracts are purchased or sold to gain exposure to, or manage exposure to, changes in interest rates (interest rate risk) and changes in the value of equity securities (equity risk) or foreign currencies (foreign currency exchange rate risk).
Futures contracts are exchange-traded agreements between the Fund and a counterparty to buy or sell a specific quantity of an underlying instrument at a specified price and on a specified date. Depending on the terms of a contract, it is settled either through physical delivery of the underlying instrument on the settlement date or by payment of a cash amount on the settlement date. Upon entering into a futures contract, the Fund is required to deposit initial margin with the broker in the form of cash or securities in an amount that varies depending on a contract’s size and risk profile. The initial margin deposit must then be maintained at an established level over the life of the contract. Amounts pledged, which are considered restricted, are included in cash pledged for futures contracts in the Statement of Assets and Liabilities.
Securities deposited as initial margin are designated in the Schedule of Investments and cash deposited, if any, are shown as cash pledged for futures contracts in the Statement of Assets and Liabilities. Pursuant to the contract, the Fund agrees to receive from or pay to the broker an amount of cash equal to the daily fluctuation in market value of the contract (“variation margin”).  Variation margin is recorded as unrealized appreciation (depreciation) and, if any, shown as variation margin receivable (or payable) on futures contracts in the Statement of Assets and Liabilities. When the contract is closed, a realized gain or loss is recorded in the Statement of Operations equal to the difference between the notional amount of the contract at the time it was opened and the notional amount at the time it was closed. The use of futures contracts involves the risk of an imperfect correlation in the movements in the price of futures contracts and interest rates, foreign currency exchange rates or underlying assets.
6.
INVESTMENT ADVISORY AGREEMENT AND OTHER TRANSACTIONS WITH AFFILIATES
Investment Advisory: The Trust, on behalf of the Fund, entered into an Investment Advisory Agreement with the Manager, the Fund’s investment adviser and an indirect, wholly-owned subsidiary of BlackRock, Inc. (“BlackRock”), to provide investment advisory services. The Manager is responsible for the management of the Fund’s portfolio and provides the personnel, facilities, equipment and certain other services necessary to the operations of the Fund.
For such services, the Fund pays the Manager a monthly fee at an annual rate equal to the following percentages of the average daily value of the Fund’s net assets: 
Average Daily Net Assets
Investment
Advisory Fees
First $1 billion
0.40
% 
$1 billion — $3 billion
0.38
$3 billion — $5 billion
0.36
$5 billion — $10 billion
0.35
Greater than $10 billion
0.34
Service and Distribution Fees:  The Trust, on behalf of the Fund, entered into a Distribution Agreement and a Distribution and Service Plan with BlackRock Investments, LLC (“BRIL”), an affiliate of the Manager. Pursuant to the Distribution and Service Plan and in accordance with Rule 12b-1 under the 1940 Act, the Fund pays BRIL ongoing service and distribution fees. The fees are accrued daily and paid monthly at annual rates based upon the average daily net assets of the relevant share class of the Fund as follows: 
Share Class
Service Fees
Distribution Fees
Investor A
0.25
% 
N/A
Investor C
0.25
0.75
% 
BRIL and broker-dealers, pursuant to sub-agreements with BRIL, provide shareholder servicing and distribution services to the Fund. The ongoing service and/or distribution fee compensates BRIL and each broker-dealer for providing shareholder servicing and/or distribution related services to shareholders.
Notes to Financial Statements
19
Notes to Financial Statements (unaudited) (continued)
 
For the six months ended November 30, 2024, the following table shows the class specific service and distribution fees borne directly by each share class of the Fund: 
 
Investor A
Investor C
Total
Service and distribution fees — class specific
$ 182,423
$ 96,573
$ 278,996
Administration:  The Trust, on behalf of the Fund, entered into an Administration Agreement with the Manager, an indirect, wholly-owned subsidiary of BlackRock, to provide administrative services. For these services, the Manager receives an administration fee computed daily and payable monthly, based on a percentage of the average daily net assets of the Fund. The administration fee, which is shown as administration in the Statement of Operations, is paid at the annual rates below. 
Average Daily Net Assets
Administration Fees
First $500 million
0.0425
% 
$500 million — $1 billion
0.0400
$1 billion — $2 billion
0.0375
$2 billion — $4 billion
0.0350
$4 billion — $13 billion
0.0325
Greater than $13 billion
0.0300
In addition, the Manager charges each of the share classes an administration fee, which is shown as administration — class specific in the Statement of Operations, at an annual rate of 0.02% of the average daily net assets of each respective class.
For the six months ended November 30, 2024, the following table shows the class specific administration fees borne directly by each share class of the Fund: 
 
Institutional
Investor A
Investor C
Class K
Total
Administration fees — class specific
$ 50,354
$ 14,594
$ 1,931
$ 21,301
$ 88,180
Transfer Agent:  Pursuant to written agreements, certain financial intermediaries, some of which may be affiliates, provide the Fund with sub-accounting, recordkeeping, sub-transfer agency and other administrative services with respect to servicing of underlying investor accounts. For these services, these entities receive an asset-based fee or an annual fee per shareholder account, which will vary depending on share class and/or net assets.  For the six months ended November 30, 2024, the Fund did not pay any amounts to affiliates in return for these services.
The Manager maintains a call center that is responsible for providing certain shareholder services to the Fund. Shareholder services include responding to inquiries and processing purchases and sales based upon instructions from shareholders. For the six months ended November 30, 2024, the Fund reimbursed the Manager the following amounts for costs incurred in running the call center, which are included in transfer agent — class specific in the Statement of Operations: 
 
Institutional
Investor A
Investor C
Class K
Total
Reimbursed amounts
$ 2,604
$ 913
$ 277
$ 736
$ 4,530
For the six months ended November 30, 2024, the following table shows the class specific transfer agent fees borne directly by each share class of the Fund: 
 
Institutional
Investor A
Investor C
Class K
Total
Transfer agent fees — class specific
$ 276,013
$ 80,707
$ 9,123
$ 6,435
$ 372,278
Other Fees:  For the six months ended November 30, 2024, affiliates earned underwriting discounts, direct commissions and dealer concessions on sales of the Fund’s Investor A Shares for a total of $4,035.
For the six months ended November 30, 2024, affiliates received CDSCs as follows: 
Fund Name
Investor C
BlackRock Sustainable Advantage Large Cap Core Fund
$ 395
Expense Limitations, Waivers and Reimbursements:  The Manager contractually agreed to waive its investment advisory fees by the amount of investment advisory fees the Fund pays to the Manager indirectly through its investment in affiliated money market funds (the “affiliated money market fund waiver”) through June 30, 2026. The contractual agreement may be terminated upon 90 days’ notice by a majority of the trustees who are not “interested persons” of the Trust, as defined in the 1940 Act (“Independent Trustees”), or by a vote of a majority of the outstanding voting securities of the Fund. The amount of waivers and/or reimbursements of fees and expenses made pursuant to the expense limitation described below will be reduced by the amount of the affiliated money market fund waiver. This amount is included in fees waived and/or reimbursed by the Manager in the Statement of Operations. For the six months ended November 30, 2024, the amount waived was $1,597.
The Manager has contractually agreed to waive its investment advisory fee with respect to any portion of the Fund’s assets invested in affiliated equity and fixed-income mutual funds and affiliated exchange-traded funds that have a contractual management fee through June 30, 2026. The contractual agreement may be terminated upon 90 days’ notice by a majority of the Independent Trustees, or by a vote of a majority of the outstanding voting securities of the Fund.  For the six months ended November 30, 2024, there were no fees waived by the Manager pursuant to this arrangement.
20
2024 BlackRock Semi-Annual Financial Statements and Additional Information
Notes to Financial Statements (unaudited) (continued)
 
The Manager contractually agreed to waive and/or reimburse fees or expenses in order to limit expenses, excluding interest expense, dividend expense, acquired fund fees and expenses, and certain other fund expenses, which constitute extraordinary expenses not incurred in the ordinary course of the Fund’s business (“expense limitation”). The current expense limitations as a percentage of average daily net assets are as follows: 
Share Class
Expense Limitation
Institutional
0.48
% 
Investor A
0.73
Investor C
1.48
Class K
0.43
The Manager has agreed not to reduce or discontinue the contractual expense limitations through June 30, 2026, unless approved by the Board, including a majority of the Independent Trustees, or by a vote of a majority of the outstanding voting securities of the Fund.  For the six months ended November 30, 2024, the Manager waived and/or reimbursed investment advisory fees of $275,957 which is included in fees waived and/or reimbursed by the Manager in the Statement of Operations.
In addition, these amounts waived and/or reimbursed by the Manager are included in administration fees waived by the Manager — class specific and transfer agent fees waived and/or reimbursed by the Manager— class specific, respectively, in the Statement of Operations. For the six months ended November 30, 2024, class specific expense waivers and/or reimbursements were as follows: 
 
Institutional
Investor A
Investor C
Class K
Total
Administration fees waived by the Manager — class specific
$ 50,354
$ 14,594
$ 1,931
$ 21,301
$ 88,180
 
 
Institutional
Investor A
Investor C
Class K
Total
Transfer agent fees waived and/or reimbursed by the Manager — class specific
$ 150,128
$ 44,223
$ 4,295
$ 6,434
$ 205,080
Securities Lending:  The U.S. Securities and Exchange Commission (“SEC”) has issued an exemptive order which permits BIM, an affiliate of the Manager, to serve as securities lending agent for the Fund, subject to applicable conditions. As securities lending agent, BIM bears all operational costs directly related to securities lending. The Fund is responsible for fees in connection with the investment of cash collateral received for securities on loan (the “collateral investment fees”). The cash collateral is invested in a money market fund, BlackRock Cash Funds: Institutional, managed by the Manager or its affiliates. However, BIM has agreed to reduce the amount of securities lending income it receives in order to effectively limit the collateral investment fees the Fund bears to an annual rate of 0.04%. The SL Agency Shares of such money market fund will not be subject to a sales load, distribution fee or service fee. The money market fund in which the cash collateral has been reinvested may impose a discretionary liquidity fee of up to 2% on all redemptions. Discretionary liquidity fees may be imposed or terminated at any time at the discretion of the board of directors of the money market fund, or its delegate, if it is determined that such fee would be, or would not be, respectively, in the best interest of the money market fund. Additionally, the money market fund will impose a mandatory liquidity fee if the money market fund’s total net redemptions on a single day exceed 5% of the money market fund’s net assets, unless the amount of the fee is less than 0.01% of the value of the shares redeemed. The money market fund will determine the size of the mandatory liquidity fee by making a good faith estimate of certain costs the money market fund would incur if it were to sell a pro rata amount of each security in the portfolio to satisfy the amount of net redemptions on that day. There is no limit to the size of a mandatory liquidity fee. If the money market fund cannot estimate the costs of selling a pro rata amount of each portfolio security in good faith and supported by data, it is required to apply a default liquidity fee of 1% on the value of shares redeemed on that day.
Securities lending income is generally equal to the total of income earned from the reinvestment of cash collateral (and excludes collateral investment fees), and  any fees or other payments to and from borrowers of securities. The Fund retains a portion of the securities lending income and remits the remaining portion to BIM as compensation for its services as securities lending agent.
Pursuant to the current securities lending agreement, the Fund retains 81% of securities lending income (which excludes collateral investment fees), and this amount retained can never be less than 70% of the total of securities lending income plus the collateral investment fees. 
In addition, commencing the business day following the date that the aggregate securities lending income earned across the BlackRock Multi-Asset Complex in a calendar year exceeds a specified threshold, the Fund, pursuant to the securities lending agreement, will retain for the remainder of that calendar year securities lending income in an amount equal to 81% of securities lending income (which excludes collateral investment fees), and this amount retained can never be less than 70% of the total of securities lending income plus the collateral investment fees.
The share of securities lending income earned by the Fund is shown as securities lending income — affiliated — net in the Statement of Operations. For the six months ended November 30, 2024, the Fund paid BIM $235 for securities lending agent services.
Interfund Lending: In accordance with an exemptive order (the “Order”) from the SEC, the Fund may participate in a joint lending and borrowing facility for temporary purposes (the “Interfund Lending Program”), subject to compliance with the terms and conditions of the Order, and to the extent permitted by the Fund’s investment policies and restrictions. The Fund is currently permitted to borrow and lend under the Interfund Lending Program.
A lending BlackRock fund may lend in aggregate up to 15% of its net assets but may not lend more than 5% of its net assets to any one borrowing fund through the Interfund Lending Program. A borrowing BlackRock fund may not borrow through the Interfund Lending Program or from any other source more than 33 1/3% of its total assets (or any lower threshold provided for by the fund’s investment restrictions). If a borrowing BlackRock fund’s total outstanding borrowings exceed 10% of its total assets, each of its outstanding interfund loans will be subject to collateralization of at least 102% of the outstanding principal value of the loan. All interfund loans are for temporary or emergency purposes and the interest rate to be charged will be the average of the highest current overnight repurchase agreement rate available to a lending fund and the bank loan rate, as calculated according to a formula established by the Board.
During the period ended November 30, 2024, the Fund did not participate in the Interfund Lending Program.
Notes to Financial Statements
21
Notes to Financial Statements (unaudited) (continued)
 
Trustees and Officers:  Certain trustees and/or officers of the Fund are directors and/or officers of BlackRock or its affiliates. The Fund reimburses the Manager for a portion of the compensation paid to the Fund’s Chief Compliance Officer, which is included in Trustees and Officer in the Statement of Operations.
Other Transactions:  The Fund may purchase securities from, or sell securities to, an affiliated fund provided the affiliation is due solely to having a common investment adviser, common officers, or common trustees. For the six months ended November 30, 2024, the purchase and sale transactions and any net realized gains (losses) with affiliated funds in compliance with Rule 17a-7 under the 1940 Act were as follows: 
Fund Name
Purchases
Sales
Net Realized
Gain (Loss)
BlackRock Sustainable Advantage Large Cap Core Fund
$ 56,527,613
$ 68,589,593
$ 8,108,180
7.
 PURCHASES AND SALES
For the six months ended November 30, 2024, purchases and sales of investments, excluding short-term securities, were $496,888,438 and $520,497,274, respectively.
8.
INCOME TAX INFORMATION
It is the Fund’s policy to comply with the requirements of the Internal Revenue Code of 1986, as amended, applicable to regulated investment companies, and to distribute substantially all of its taxable income to its shareholders. Therefore, no U.S. federal income tax provision is required.
The Fund files U.S. federal and various state and local tax returns. No income tax returns are currently under examination. The statute of limitations on the Fund’s U.S. federal tax returns generally remains open for a period of three years after they are filed. The statutes of limitations on the Fund’s state and local tax returns may remain open for an additional year depending upon the jurisdiction.
Management has analyzed tax laws and regulations and their application to the Fund as of November 30, 2024, inclusive of the open tax return years, and does not believe that there are any uncertain tax positions that require recognition of a tax liability in the Fund’s financial statements. Management’s analysis is based on the tax laws and judicial and administrative interpretations thereof in effect as of date of these financial statements, all of which are subject to change, possibly with retroactive effect which may impact the Fund’s NAV.
As of November 30, 2024, gross unrealized appreciation and depreciation based on cost of investments (including short positions and derivatives, if any) for U.S. federal income tax purposes were as follows: 
Fund Name
Tax Cost
Gross Unrealized
Appreciation
Gross Unrealized
Depreciation
Net Unrealized
Appreciation
(Depreciation)
BlackRock Sustainable Advantage Large Cap Core Fund
$ 676,793,251
$ 279,411,226
$ (24,711,033
)
$ 254,700,193
9.
BANK BORROWINGS
The Trust, on behalf of the Fund, along with certain other funds managed by the Manager and its affiliates (“Participating Funds”), is party to a 364-day, $2.40 billion credit agreement with a group of lenders. Under this agreement, the Fund may borrow to fund shareholder redemptions. Excluding commitments designated for certain individual funds, the Participating Funds, including the Fund, can borrow up to an aggregate commitment amount of $1.75 billion at any time outstanding, subject to asset coverage and other limitations as specified in the agreement. The credit agreement has the following terms: a fee of 0.10% per annum on unused commitment amounts and interest at a rate equal to the higher of (a) Overnight Bank Funding Rate (“OBFR”) (but, in any event, not less than 0.00%) on the date the loan is made plus 0.80% per annum, (b) the Fed Funds rate (but, in any event, not less than 0.00%) in effect from time to time plus 0.80% per annum on amounts borrowed or (c) the sum of (x) Daily Simple Secured Overnight Financing Rate (“SOFR”) (but, in any event, not less than 0.00%) on the date the loan is made plus 0.10% and (y) 0.80% per annum. The agreement expires in April 2025 unless extended or renewed. These fees were allocated among such funds based upon portions of the aggregate commitment available to them and relative net assets of Participating Funds.  During the six months ended November 30, 2024, the Fund did not borrow under the credit agreement.
10.
PRINCIPAL RISKS
In the normal course of business, the Fund invests in securities or other instruments and may enter into certain transactions, and such activities subject the Fund to various risks, including among others, fluctuations in the market (market risk) or failure of an issuer to meet all of its obligations. The value of securities or other instruments may also be affected by various factors, including, without limitation: (i) the general economy; (ii) the overall market as well as local, regional or global political and/or social instability; (iii) regulation, taxation or international tax treaties between various countries; or (iv) currency, interest rate and price fluctuations. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issues, recessions, or other events could have a significant impact on the Fund and its investments. The Fund’s prospectus provides details of the risks to which the Fund is subject.
The Fund may be exposed to additional risks when reinvesting cash collateral in money market funds that do not seek to maintain a stable NAV per share of $1.00, which may be subject to mandatory and discretionary liquidity fees under certain circumstances.
Valuation Risk: The market values of equities, such as common stocks and preferred securities or equity related investments, such as futures and options, may decline due to general market conditions which are not specifically related to a particular company. They may also decline due to factors which affect a particular industry or industries.
22
2024 BlackRock Semi-Annual Financial Statements and Additional Information
Notes to Financial Statements (unaudited) (continued)
 
The Fund may invest in illiquid investments.  An illiquid investment is any investment that the Fund reasonably expects cannot be sold or disposed of in current market conditions in seven calendar days or less without the sale or disposition significantly changing the market value of the investment. The Fund may  experience difficulty in selling illiquid investments in a timely manner at the price that it believes the investments are worth. Prices may fluctuate widely over short or extended periods in response to company, market or economic news. Markets also tend to move in cycles, with periods of rising and falling prices. This volatility may cause the Fund’s NAV to experience significant increases or decreases over short periods of time. If there is a general decline in the securities and other markets, the NAV of the Fund may lose value, regardless of the individual results of the securities and other instruments in which the Fund invests. The Fund’s ability to value its investments may also be impacted by technological issues and/or errors by pricing services or other third-party service providers.
The price the Fund could receive upon the sale of any particular portfolio investment may differ from the Fund’s valuation of the investment, particularly for securities that trade in thin or volatile markets or that are valued using a fair valuation technique or a price provided by an independent pricing service. Changes to significant unobservable inputs and assumptions (i.e., publicly traded company multiples, growth rate, time to exit) due to the lack of observable inputs may significantly impact the resulting fair value and therefore the Fund’s results of operations. As a result, the price received upon the sale of an investment may be less than the value ascribed by the Fund, and the Fund could realize a greater than expected loss or lesser than expected gain upon the sale of the investment. 
Counterparty Credit Risk: The Fund may be exposed to counterparty credit risk, or the risk that an entity may fail to or be unable to perform on its commitments related to unsettled or open transactions, including making timely interest and/or principal payments or otherwise honoring its obligations. The Fund manages counterparty credit risk by entering into transactions only with counterparties that the Manager believes have the financial resources to honor their obligations and by monitoring the financial stability of those counterparties. Financial assets, which potentially expose the Fund to market, issuer and counterparty credit risks, consist principally of financial instruments and receivables due from counterparties. The extent of the Fund’s exposure to market, issuer and counterparty credit risks with respect to these financial assets is approximately their value recorded in the Statement of Assets and Liabilities, less any collateral held by the Fund.
A derivative contract may suffer a mark-to-market loss if the value of the contract decreases due to an unfavorable change in the market rates or values of the underlying instrument. Losses can also occur if the counterparty does not perform under the contract.
With exchange-traded futures, there is less counterparty credit risk to the Fund since the exchange or clearinghouse, as counterparty to such instruments, guarantees against a possible default. The clearinghouse stands between the buyer and the seller of the contract; therefore, credit risk is limited to failure of the clearinghouse. While offset rights may exist under applicable law, the Fund does not have a contractual right of offset against a clearing broker or clearinghouse in the event of a default (including the bankruptcy or insolvency). Additionally, credit risk exists in exchange-traded futures with respect to initial and variation margin that is held in a clearing broker’s customer accounts. While clearing brokers are required to segregate customer margin from their own assets, in the event that a clearing broker becomes insolvent or goes into bankruptcy and at that time there is a shortfall in the aggregate amount of margin held by the clearing broker for all its clients, typically the shortfall would be allocated on a pro rata basis across all the clearing broker’s customers, potentially resulting in losses to the Fund.
Geographic/Asset Class Risk:  A diversified portfolio, where this is appropriate and consistent with a fund’s objectives, minimizes the risk that a price change of a particular investment will have a material impact on the NAV of a fund. The investment concentrations within the Fund’s portfolio are disclosed in its Schedule of Investments.
The Fund invests a significant portion of its assets in securities within a single or limited number of market sectors. When a fund concentrates its investments in this manner, it assumes the risk that economic, regulatory, political and social conditions affecting such sectors may have a significant impact on the Fund and could affect the income from, or the value or liquidity of, the Fund’s portfolio. Investment percentages in specific sectors are presented in the Schedule of Investments.
The Fund invests a significant portion of its assets in securities of issuers located in the United States. A decrease in imports or exports, changes in trade regulations, inflation and/or an economic recession in the United States may have a material adverse effect on the U.S. economy and the securities listed on U.S. exchanges. Proposed and adopted policy and legislative changes in the United States may also have a significant effect on U.S. markets generally, as well as on the value of certain securities. Governmental agencies project that the United States will continue to maintain elevated public debt levels for the foreseeable future which may constrain future economic growth. Circumstances could arise that could prevent the timely payment of interest or principal on U.S. government debt, such as reaching the legislative “debt ceiling.” Such non-payment would result in substantial negative consequences for the U.S. economy and the global financial system. If U.S. relations with certain countries deteriorate, it could adversely affect issuers that rely on the United States for trade. The United States has also experienced increased internal unrest and discord. If these trends were to continue, they may have an adverse impact on the U.S. economy and the issuers in which the Fund invests.
Significant Shareholder Redemption Risk: Certain shareholders may own or manage a substantial amount of fund shares and/or hold their fund investments for a limited period of time. Large redemptions of fund shares by these shareholders may force a fund to sell portfolio securities, which may negatively impact the fund’s NAV, increase the fund’s brokerage costs, and/or accelerate the realization of taxable income/gains and cause the fund to make additional taxable distributions to shareholders.
Notes to Financial Statements
23
Notes to Financial Statements (unaudited) (continued)
 
11.
 CAPITAL SHARE TRANSACTIONS 
Transactions in capital shares for each class were as follows: 
 
Six Months Ended
11/30/24
Year Ended
05/31/24
Fund Name / Share Class 
Shares 
Amounts 
Shares 
Amounts 
BlackRock Sustainable Advantage Large Cap Core Fund 
Institutional
Shares sold
3,156,650
$ 68,788,142
7,122,632
$ 139,545,581
Shares issued in reinvestment of distributions
2,323,481
49,164,849
322,548
6,212,167
Shares redeemed
(4,301,004)
(94,286,311)
(21,209,887)
(428,217,907)
 
1,179,127
$ 23,666,680
(13,764,707)
$ (282,460,159)
Investor A
Shares sold and automatic conversion of shares
1,142,062
$ 24,581,636
1,881,354
$ 36,836,848
Shares issued in reinvestment of distributions
704,084
14,813,929
47,808
917,349
Shares redeemed
(1,173,799)
(24,885,578)
(1,236,913)
(24,275,795)
 
672,347
$ 14,509,987
692,249
$ 13,478,402
Investor C
Shares sold
29,280
$ 636,366
96,019
$ 1,835,075
Shares issued in reinvestment of distributions
94,925
1,966,849
1,014
19,281
Shares redeemed and automatic conversion of shares
(119,203)
(2,568,003)
(242,036)
(4,806,834)
 
5,002
$ 35,212
(145,003)
$ (2,952,478)
Class K
Shares sold
914,680
$ 20,167,560
3,808,014
$ 73,366,958
Shares issued in reinvestment of distributions
1,016,411
21,527,583
307,009
5,921,145
Shares redeemed
(651,173)
(14,221,087)
(23,228,564)
(495,745,480)
 
1,279,918
$ 27,474,056
(19,113,541)
$ (416,457,377)
 
3,136,394
$ 65,685,935
(32,331,002)
$ (688,391,612)
12.
SUBSEQUENT EVENTS
Management has evaluated the impact of all subsequent events on the Fund through the date the financial statements were issued and has determined that there were no subsequent events requiring adjustment or additional disclosure in the financial statements.
24
2024 BlackRock Semi-Annual Financial Statements and Additional Information
Additional Information
 
Changes in and Disagreements with Accountants
Not applicable.
Remuneration Paid to Trustees, Officers, and Others
Compensation to the independent directors/trustees of the Trust is paid by the Trust, on behalf of the Fund.
General Information
Quarterly performance, semi-annual and annual reports, current net asset value and other information regarding the Fund may be found on BlackRock’s website, which can be accessed at blackrock.com. Any reference to BlackRock’s website in this report is intended to allow investors public access to information regarding the Fund and does not, and is not intended to, incorporate BlackRock’s website in this report.
Electronic Delivery
Shareholders can sign up for e-mail notifications of quarterly statements, annual and semi-annual shareholder reports and prospectuses by enrolling in the electronic delivery program.
To enroll in electronic delivery:
Shareholders Who Hold Accounts with Investment Advisors, Banks or Brokerages:
Please contact your financial advisor. Please note that not all investment advisors, banks or brokerages may offer this service.
Shareholders Who Hold Accounts Directly with BlackRock:
1. Access the BlackRock website at blackrock.com
2. Select “Access Your Account”
3. Next, select “eDelivery” in the “Related Resources” box and follow the sign-up instructions.
BlackRock’s Mutual Fund Family
BlackRock offers a diverse lineup of open-end mutual funds crossing all investment styles and managed by experts in equity, fixed-income and tax-exempt investing. Visit blackrock.com for more information.
Shareholder Privileges
Account Information
Call us at (800) 441-7762 from 8:00 AM to 6:00 PM ET on any business day to get information about your account balances, recent transactions and share prices. You can also visit blackrock.com for more information.
Automatic Investment Plans
Investor class shareholders who want to invest regularly can arrange to have $50 or more automatically deducted from their checking or savings account and invested in any of the BlackRock funds.
Systematic Withdrawal Plans
Investor class shareholders can establish a systematic withdrawal plan and receive periodic payments of $50 or more from their BlackRock funds, as long as their account balance is at least $10,000.
Retirement Plans
Shareholders may make investments in conjunction with Traditional, Rollover, Roth, Coverdell, Simple IRAs, SEP IRAs and 403(b) Plans.
Fund and Service Providers
Investment Adviser and Administrator
BlackRock Advisors, LLC
Wilmington, DE 19809
Accounting Agent and Custodian
State Street Bank and Trust Company
Boston, MA 02114
Transfer Agent
BNY Mellon Investment Servicing (US) Inc.
Wilmington, DE 19809
Distributor
BlackRock Investments, LLC
New York, NY 10001
Additional Information
25
Additional Information (continued)
 
Fund and Service Providers (continued) 
Independent Registered Public Accounting Firm
Deloitte & Touche LLP
Boston, MA 02110
Legal Counsel
Sidley Austin LLP
New York, NY 10019
 
Address of the Fund
100 Bellevue Parkway
Wilmington, DE 19809
26
2024 BlackRock Semi-Annual Financial Statements and Additional Information
Glossary of Terms Used in this Report
 
 
Portfolio Abbreviation 
MSCI
 Morgan Stanley Capital International
S&P
 Standard & Poor’s
Glossary of Terms Used in This Report
27
Want to know more?
blackrock.com | 800-441-7762
This report is intended for current holders. It is not authorized for use as an offer of sale or a solicitation of an offer to buy shares of the Fund unless preceded or accompanied by the Fund’s current prospectus. Past performance results shown in this report should not be considered a representation of future performance. Investment returns and principal value of shares will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. Statements and other information herein are as dated and are subject to change.
 
 

Item  8 –

Changes in and Disagreements with Accountants for Open-End Management Investment Companies – See Item 7

 

Item 9 –

Proxy Disclosures for Open-End Management Investment Companies – See Item 7

 

Item 10 –

Remuneration Paid to Directors, Officers, and Others of Open-End Management Investment Companies – See Item 7

 

Item 11 –

Statement Regarding Basis for Approval of Investment Advisory Contract – See Item 7

 

Item 12 –

Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies – Not Applicable

 

Item 13 –

Portfolio Managers of Closed-End Management Investment Companies – Not Applicable

 

Item 14 –

Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers – Not Applicable

 

Item 15 –

Submission of Matters to a Vote of Security Holders – There have been no material changes to these procedures.

 

Item 16 –

Controls and Procedures

(a) 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”)) are effective as of a date within 90 days of the filing date of this report based on the evaluation of these controls and procedures required by Rule 30a-3(b) under the 1940 Act and Rule 13a-15(b) or 15d-15(b) under the Securities Exchange Act of 1934, as amended.

(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) that occurred during the period covered by this report that have materially affected, or are 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

 

Item 18 –

Recovery of Erroneously Awarded Compensation – Not Applicable

 

Item 19 –

Exhibits attached hereto

(a)(1) Code of Ethics – Not Applicable to this semi-annual report

(a)(2) Any policy required by the listing standards adopted pursuant to Rule 10D-1 under the Exchange Act (17 CFR 240.10D-1) by the registered national securities exchange or registered national securities association upon which the registrant’s securities are listed – Not Applicable

(a)(3) Section 302 Certifications are attached

(a)(4) Any written solicitation to purchase securities under Rule 23c-1 – Not Applicable

(a)(5) Change in Registrant’s independent public accountant – Not Applicable

(b) Section 906 Certifications are attached

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.

BlackRock FundsSM

 

  By:     

/s/ John M. Perlowski       

       John M. Perlowski
       Chief Executive Officer (principal executive officer) of
       BlackRock FundsSM

Date: January 21, 2025

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.

 

  By:     

/s/ John M. Perlowski       

       John M. Perlowski
       Chief Executive Officer (principal executive officer) of
       BlackRock FundsSM

Date: January 21, 2025

 

  By:     

/s/ Trent Walker          

       Trent Walker
       Chief Financial Officer (principal financial officer) of
       BlackRock FundsSM

Date: January 21, 2025