Consolidated ssr-output-EDGAR XBRL File

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 811-07896

GAMCO Global Series Funds, Inc.

(Exact name of registrant as specified in charter)

One Corporate Center
Rye, New York 10580-1422

(Address of principal executive offices) (Zip code)

John C. Ball
Gabelli Funds, LLC
One Corporate Center
Rye, New York 10580-1422

(Name and address of agent for service)

Registrant’s telephone number, including area code: 1-800-422-3554

Date of fiscal year end: December 31

Date of reporting period: June 30, 2024

Form N-CSR is to be used by management investment companies to file reports with the Commission not later than 10 days after the transmission to stockholders of any report that is required to be transmitted to stockholders under Rule 30e-1 under the Investment Company Act of 1940 (17 CFR 270.30e-1). The Commission may use the information provided on Form N-CSR in its regulatory, disclosure review, inspection, and policymaking roles.

A registrant is required to disclose the information specified by Form N-CSR, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-CSR unless the Form displays a currently valid Office of Management and Budget (“OMB”) control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to Secretary, Securities and Exchange Commission, 100 F Street, NE, Washington, DC 20549-1090. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. § 3507.

Item 1. Reports to Stockholders.

(a)

Include a copy of the report transmitted to stockholders pursuant to Rule 30e-1 under the Act (17 CFR 270.30e-1).

The Report to Shareholders is attached herewith.

The Gabelli Global Growth Fund

Class AAA - GICPX

Semi-Annual Shareholder Report - June 30, 2024

Fund Overview

This semi-annual shareholder report contains important information about The Gabelli Global Growth Fund (the Fund) for the period of January 1, 2024 to June 30, 2024. The Fund’s investment objective primarily seeks to provide investors with appreciation of capital. Current income is a secondary objective of the Fund. The Fund’s investment strategy is to invest at least 65% of its total assets in common stocks of companies which the portfolio managers believe are likely to have rapid growth in revenues and earnings and potential for above average capital appreciation or are undervalued. The Global Growth Fund invests primarily in common stocks of foreign and domestic small-capitalization, mid-capitalization, and large-capitalization issuers. As a “global” fund, the Fund invests in securities of issuers, or related investments thereof, located in at least three countries, and at least 40% of the Fund’s total net assets are invested in securities of non-U.S. issuers. You can find additional information about the Fund at www.gabelli.com. You can also request this information by contacting us at 800-GABELLI (800-422-3554).

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Class Name	Costs of a $10k Investment	Costs Paid as a % of a $10k Investment
The Gabelli Global Growth Fund - Class AAA	$50	0.90%

How did the Fund perform?

During the six months ended June 30, 2024, the Gabelli Global Growth Fund outperformed its broad-based benchmark, the MSCI AC World Index and its comparative benchmark, the Lipper Global Large-Cap Growth Fund Classification. Economic data began to soften in the second quarter, suggesting tighter monetary policy may be having its intended effect. Separately, the artificial intelligence cycle has accelerated so far this year, and beneficiaries are emerging in the semiconductor and data center infrastructure sectors.

How has the Fund performed over the past 10 years?

The performance chart of the fund class presented reflects a hypothetical $10,000 investment, assuming the maximum sales charge, compared to a broad-based securities market index and more narrowly based indices reflecting market sectors in which the Fund invests over a 10-year period. The chart uses total return NAV performance and assumes reinvestment of dividends and capital gains distribution. Fund expenses were deducted.

Total Return Based on a $10,000 Investment

	The Gabelli Global Growth Fund - Class AAA	MSCI ACWI Index	Lipper Global Large-Cap Growth Fund Classification
6/14	10,000	10,000	10,000
6/15	10,193	10,071	10,299
6/16	9,673	9,695	10,038
6/17	11,444	11,516	11,973
6/18	13,814	12,752	13,636
6/19	15,226	13,484	14,998
6/20	17,768	13,768	16,666
6/21	24,183	19,175	22,931
6/22	17,090	16,155	17,173
6/23	21,194	18,825	20,525
6/24	27,982	22,474	24,755

Average Annual Total Returns

Fund	6 months	1 Year	5 Year	10 Year
The Gabelli Global Growth Fund - Class AAA	24.36%	32.03%	12.94%	10.84%
MSCI ACWI Index	11.30%	19.38%	10.76%	8.43%
Lipper Global Large-Cap Growth Fund Classification	13.01%	20.61%	10.54%	9.49%

Fund Statistics

Total Net Assets$183,810,147
Number of Portfolio Holdings43
Portfolio Turnover Rate14%
Management Fees$397,996

Past performance does not guarantee future results. Call 800-GABELLI (800-422-3554) or visit www.gabelli.com for current month-end performance.

The table and graph presented above do not reflect the deduction of taxes a shareholder would pay on fund distributions or the redemption of fund shares.

Updated Location: Visit www.confluence.com/funds for more recent performance information.

What did the Fund invest in?

Top 10 Holdings (% of net assets)

Top 10
NVIDIA Corp.	10.8%
Microsoft Corp.	5.9%
Amazon.com Inc.	5.9%
Meta Platforms Inc.	5.5%
Alphabet Inc.	5.4%
Netflix Inc.	4.7%
Eli Lilly & Co.	4.6%
Novo Nordisk A/S	3.6%
LVMH Moet Hennessy Louis Vuitton SE	3.4%
L'Oreal SA	3.1%

Industry Allocation (% of net assets)

Industry Weighting	.
Information Technology - Semiconductors, Hardware, and Equipment	22.3%
Communication Services	17.9%
Consumer Discretionary	13.4%
Health Care	12.6%
Information Technology - Software and Services	11.8%
Financials	10.5%
Industrials	5.8%
Consumer Staples	3.1%
Other Industry sectors	1.7%
Other Assets and Liabilities (Net)	0.9%

Portfolio Weighting (% of net assets)

Value	Value
Common Stocks	98.3%
U.S. Government Obligations	0.8%
Other Assets and Liabilities (Net)	0.9%

The Gabelli Global Growth Fund

Semi-Annual Shareholder Report - June 30, 2024

Class AAA - GICPX

Where can I find additional information about the Fund?

If you wish to view additional information about the Fund; including but not limited to financial statements or holdings, please visit www.gabelli.com.

Phone: 800-GABELLI (800-422-3554)

Email: info@gabelli.com

Householding

If you wish to receive a copy of this document at a new address, contact 800-GABELLI (800-422-3554)

GICPX-24-SATSR

The Gabelli Global Growth Fund

Class C - GGGCX

Semi-Annual Shareholder Report - June 30, 2024

Fund Overview

What were the Fund costs for the last six months?

(based on a hypothetical $10,000 investment)

Class Name	Costs of a $10k Investment	Costs Paid as a % of a $10k Investment
The Gabelli Global Growth Fund - Class C	$50	0.90%

How did the Fund perform?

How has the Fund performed over the past 10 years?

Total Return Based on a $10,000 Investment

	The Gabelli Global Growth Fund - Class C	MSCI ACWI Index	Lipper Global Large-Cap Growth Fund Classification
6/14	10,000	10,000	10,000
6/15	10,016	10,071	10,299
6/16	9,342	9,695	10,038
6/17	10,876	11,516	11,973
6/18	12,922	12,752	13,636
6/19	14,006	13,484	14,998
6/20	16,153	13,768	16,666
6/21	21,822	19,175	22,931
6/22	15,271	16,155	17,173
6/23	18,785	18,825	20,525
6/24	24,615	22,474	24,755

Average Annual Total Returns

Fund	6 months	1 Year	5 Year	10 Year
The Gabelli Global Growth Fund - Class C	23.38%	31.03%	12.88%	10.39%
MSCI ACWI Index	11.30%	19.38%	10.76%	8.43%
Lipper Global Large-Cap Growth Fund Classification	13.01%	20.61%	10.54%	9.49%

Fund Statistics

Total Net Assets$183,810,147
Number of Portfolio Holdings43
Portfolio Turnover Rate14%
Management Fees$397,996

Past performance does not guarantee future results. Call 800-GABELLI (800-422-3554) or visit www.gabelli.com for current month-end performance.

The table and graph presented above do not reflect the deduction of taxes a shareholder would pay on fund distributions or the redemption of fund shares.

Updated Location: Visit www.confluence.com/funds for more recent performance information.