AB Sustainable Internationalthematic Fund Inc.

03/03/2026 | Press release | Distributed by Public on 03/03/2026 13:32

Semi-Annual Report by Investment Company (Form N-CSRS)

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: 811-08426

AB SUSTAINABLE INTERNATIONAL THEMATIC FUND, INC.

(Exact name of registrant as specified in charter)

66 Hudson Boulevard East

New York, New York 10005

(Address of principal executive offices) (Zip code)

Stephen M. Woetzel

AllianceBernstein L.P.

66 Hudson Boulevard East

New York, New York 10005

(Name and address of agent for service)

Registrant's telephone number, including area code: (800) 221-5672

Date of fiscal year end: June 30, 2026

Date of reporting period: December 31, 2025

ITEM 1. REPORTS TO STOCKHOLDERS.

Class A:AWPAX

December 31, 2025

SCAN ME

Please scan QR code for Fund Information

AB Sustainable International Thematic Fund

Semi-Annual Shareholder Report

This semi-annual shareholder report contains important information about the AB Sustainable International Thematic Fund (the "Fund") for the period of July 1, 2025 to December 31, 2025. You can find additional information about the Fund at https://www.abfunds.com/link/AB/AWPAX-S. You can also request this information by contacting us at (800) 227 4618.

What were the Fund costs for the last six months?

(Based on a hypothetical $10,000 investment)

Class Name
Cost of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class A
$51
1.02%Footnote Reference*
Footnote Description
Footnote*
Annualized

Key Fund Statistics

Net Assets
$901,984,131
# of Portfolio Holdings
55
Portfolio Turnover Rate
37%
Total Advisory Fees Paid (Net)
$2,919,477

Graphical Representation of Holdings

10 Top Holdings

Company
U.S. $ Value
% of Net Assets
Taiwan Semiconductor Manufacturing Co., Ltd.
$41,341,277
4.6%
Halma PLC
$38,419,157
4.3%
Roche Holding AG
$38,308,362
4.2%
AIA Group Ltd. - Class H
$35,871,431
4.0%
Danone SA
$35,613,217
3.9%
Prysmian SpA
$33,623,914
3.7%
Samsung Electronics Co., Ltd.
$32,308,967
3.6%
Erste Group Bank AG
$31,969,542
3.5%
STERIS PLC
$31,282,086
3.5%
Veralto Corp.
$31,261,274
3.5%
Total
$349,999,227
38.8%

Class A:AWPAX

1

Sector Breakdown (% of Net Assets)

Financials
28.6%
Information Technology
24.6%
Health Care
16.1%
Industrials
12.2%
Consumer Staples
4.0%
Utilities
2.8%
Energy
2.1%
Communication Services
1.7%
Materials
1.0%
Consumer Discretionary
1.0%
Others
0.7%
Short-Term Investments
4.6%
Other assets less liabilities
0.6%
Total
100.0%

Country Breakdown (% of Net Assets)

United Kingdom
14.5%
United States
11.2%
Switzerland
9.4%
Canada
8.3%
Germany
6.7%
Italy
6.2%
Brazil
5.3%
Japan
5.1%
South Korea
5.0%
France
4.7%
Taiwan
4.6%
Hong Kong
4.0%
Austria
3.5%
Others
6.3%
Short-Term Investments
4.6%
Other assets less liabilities
0.6%
Total
100.0%

Availability of Additional Information

You can find additional information at https://www.abfunds.com/link/AB/AWPAX-S, including the Fund's:

• Prospectus

• Financial information

• Fund holdings

• Proxy voting information

You can also request this information by contacting us at (800) 227 4618.

Householding

Shareholders who have consented to receive a single annual or semi-annual shareholder report at a shared address may revoke this consent by contacting us at (800) 227 4618.

The [A/B] logo and AllianceBernstein® are registered trademarks used by permission of the owner, AllianceBernstein L.P.

SIT-A-0154-1225

Class A:AWPAX

2

Advisor Class:AWPYX

December 31, 2025

SCAN ME

Please scan QR code for Fund Information

AB Sustainable International Thematic Fund

Semi-Annual Shareholder Report

This semi-annual shareholder report contains important information about the AB Sustainable International Thematic Fund (the "Fund") for the period of July 1, 2025 to December 31, 2025. You can find additional information about the Fund at https://www.abfunds.com/link/AB/AWPYX-S. You can also request this information by contacting us at (800) 227 4618.

What were the Fund costs for the last six months?

(Based on a hypothetical $10,000 investment)

Class Name
Cost of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Advisor Class
$39
0.77%Footnote Reference*
Footnote Description
Footnote*
Annualized

Key Fund Statistics

Net Assets
$901,984,131
# of Portfolio Holdings
55
Portfolio Turnover Rate
37%
Total Advisory Fees Paid (Net)
$2,919,477

Graphical Representation of Holdings

10 Top Holdings

Company
U.S. $ Value
% of Net Assets
Taiwan Semiconductor Manufacturing Co., Ltd.
$41,341,277
4.6%
Halma PLC
$38,419,157
4.3%
Roche Holding AG
$38,308,362
4.2%
AIA Group Ltd. - Class H
$35,871,431
4.0%
Danone SA
$35,613,217
3.9%
Prysmian SpA
$33,623,914
3.7%
Samsung Electronics Co., Ltd.
$32,308,967
3.6%
Erste Group Bank AG
$31,969,542
3.5%
STERIS PLC
$31,282,086
3.5%
Veralto Corp.
$31,261,274
3.5%
Total
$349,999,227
38.8%

Advisor Class:AWPYX

1

Sector Breakdown (% of Net Assets)

Financials
28.6%
Information Technology
24.6%
Health Care
16.1%
Industrials
12.2%
Consumer Staples
4.0%
Utilities
2.8%
Energy
2.1%
Communication Services
1.7%
Materials
1.0%
Consumer Discretionary
1.0%
Others
0.7%
Short-Term Investments
4.6%
Other assets less liabilities
0.6%
Total
100.0%

Country Breakdown (% of Net Assets)

United Kingdom
14.5%
United States
11.2%
Switzerland
9.4%
Canada
8.3%
Germany
6.7%
Italy
6.2%
Brazil
5.3%
Japan
5.1%
South Korea
5.0%
France
4.7%
Taiwan
4.6%
Hong Kong
4.0%
Austria
3.5%
Others
6.3%
Short-Term Investments
4.6%
Other assets less liabilities
0.6%
Total
100.0%

Availability of Additional Information

You can find additional information at https://www.abfunds.com/link/AB/AWPYX-S, including the Fund's:

• Prospectus

• Financial information

• Fund holdings

• Proxy voting information

You can also request this information by contacting us at (800) 227 4618.

Householding

Shareholders who have consented to receive a single annual or semi-annual shareholder report at a shared address may revoke this consent by contacting us at (800) 227 4618.

The [A/B] logo and AllianceBernstein® are registered trademarks used by permission of the owner, AllianceBernstein L.P.

SIT-ADV-0154-1225

Advisor Class:AWPYX

2

Class C:AWPCX

December 31, 2025

SCAN ME

Please scan QR code for Fund Information

AB Sustainable International Thematic Fund

Semi-Annual Shareholder Report

This semi-annual shareholder report contains important information about the AB Sustainable International Thematic Fund (the "Fund") for the period of July 1, 2025 to December 31, 2025. You can find additional information about the Fund at https://www.abfunds.com/link/AB/AWPCX-S. You can also request this information by contacting us at (800) 227 4618.

What were the Fund costs for the last six months?

(Based on a hypothetical $10,000 investment)

Class Name
Cost of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class C
$90
1.79%Footnote Reference*
Footnote Description
Footnote*
Annualized

Key Fund Statistics

Net Assets
$901,984,131
# of Portfolio Holdings
55
Portfolio Turnover Rate
37%
Total Advisory Fees Paid (Net)
$2,919,477

Graphical Representation of Holdings

10 Top Holdings

Company
U.S. $ Value
% of Net Assets
Taiwan Semiconductor Manufacturing Co., Ltd.
$41,341,277
4.6%
Halma PLC
$38,419,157
4.3%
Roche Holding AG
$38,308,362
4.2%
AIA Group Ltd. - Class H
$35,871,431
4.0%
Danone SA
$35,613,217
3.9%
Prysmian SpA
$33,623,914
3.7%
Samsung Electronics Co., Ltd.
$32,308,967
3.6%
Erste Group Bank AG
$31,969,542
3.5%
STERIS PLC
$31,282,086
3.5%
Veralto Corp.
$31,261,274
3.5%
Total
$349,999,227
38.8%

Class C:AWPCX

1

Sector Breakdown (% of Net Assets)

Financials
28.6%
Information Technology
24.6%
Health Care
16.1%
Industrials
12.2%
Consumer Staples
4.0%
Utilities
2.8%
Energy
2.1%
Communication Services
1.7%
Materials
1.0%
Consumer Discretionary
1.0%
Others
0.7%
Short-Term Investments
4.6%
Other assets less liabilities
0.6%
Total
100.0%

Country Breakdown (% of Net Assets)

United Kingdom
14.5%
United States
11.2%
Switzerland
9.4%
Canada
8.3%
Germany
6.7%
Italy
6.2%
Brazil
5.3%
Japan
5.1%
South Korea
5.0%
France
4.7%
Taiwan
4.6%
Hong Kong
4.0%
Austria
3.5%
Others
6.3%
Short-Term Investments
4.6%
Other assets less liabilities
0.6%
Total
100.0%

Availability of Additional Information

You can find additional information at https://www.abfunds.com/link/AB/AWPCX-S, including the Fund's:

• Prospectus

• Financial information

• Fund holdings

• Proxy voting information

You can also request this information by contacting us at (800) 227 4618.

Householding

Shareholders who have consented to receive a single annual or semi-annual shareholder report at a shared address may revoke this consent by contacting us at (800) 227 4618.

The [A/B] logo and AllianceBernstein® are registered trademarks used by permission of the owner, AllianceBernstein L.P.

SIT-C-0154-1225

Class C:AWPCX

2

Class I:AWPIX

December 31, 2025

SCAN ME

Please scan QR code for Fund Information

AB Sustainable International Thematic Fund

Semi-Annual Shareholder Report

This semi-annual shareholder report contains important information about the AB Sustainable International Thematic Fund (the "Fund") for the period of July 1, 2025 to December 31, 2025. You can find additional information about the Fund at https://www.abfunds.com/link/AB/AWPIX-S. You can also request this information by contacting us at (800) 227 4618.

What were the Fund costs for the last six months?

(Based on a hypothetical $10,000 investment)

Class Name
Cost of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class I
$42
0.84%Footnote Reference*
Footnote Description
Footnote*
Annualized

Key Fund Statistics

Net Assets
$901,984,131
# of Portfolio Holdings
55
Portfolio Turnover Rate
37%
Total Advisory Fees Paid (Net)
$2,919,477

Graphical Representation of Holdings

10 Top Holdings

Company
U.S. $ Value
% of Net Assets
Taiwan Semiconductor Manufacturing Co., Ltd.
$41,341,277
4.6%
Halma PLC
$38,419,157
4.3%
Roche Holding AG
$38,308,362
4.2%
AIA Group Ltd. - Class H
$35,871,431
4.0%
Danone SA
$35,613,217
3.9%
Prysmian SpA
$33,623,914
3.7%
Samsung Electronics Co., Ltd.
$32,308,967
3.6%
Erste Group Bank AG
$31,969,542
3.5%
STERIS PLC
$31,282,086
3.5%
Veralto Corp.
$31,261,274
3.5%
Total
$349,999,227
38.8%

Class I:AWPIX

1

Sector Breakdown (% of Net Assets)

Financials
28.6%
Information Technology
24.6%
Health Care
16.1%
Industrials
12.2%
Consumer Staples
4.0%
Utilities
2.8%
Energy
2.1%
Communication Services
1.7%
Materials
1.0%
Consumer Discretionary
1.0%
Others
0.7%
Short-Term Investments
4.6%
Other assets less liabilities
0.6%
Total
100.0%

Country Breakdown (% of Net Assets)

United Kingdom
14.5%
United States
11.2%
Switzerland
9.4%
Canada
8.3%
Germany
6.7%
Italy
6.2%
Brazil
5.3%
Japan
5.1%
South Korea
5.0%
France
4.7%
Taiwan
4.6%
Hong Kong
4.0%
Austria
3.5%
Others
6.3%
Short-Term Investments
4.6%
Other assets less liabilities
0.6%
Total
100.0%

Availability of Additional Information

You can find additional information at https://www.abfunds.com/link/AB/AWPIX-S, including the Fund's:

• Prospectus

• Financial information

• Fund holdings

• Proxy voting information

You can also request this information by contacting us at (800) 227 4618.

Householding

Shareholders who have consented to receive a single annual or semi-annual shareholder report at a shared address may revoke this consent by contacting us at (800) 227 4618.

The [A/B] logo and AllianceBernstein® are registered trademarks used by permission of the owner, AllianceBernstein L.P.

SIT-I-0154-1225

Class I:AWPIX

2

Class Z:AWPZX

December 31, 2025

SCAN ME

Please scan QR code for Fund Information

AB Sustainable International Thematic Fund

Semi-Annual Shareholder Report

This semi-annual shareholder report contains important information about the AB Sustainable International Thematic Fund (the "Fund") for the period of July 1, 2025 to December 31, 2025. You can find additional information about the Fund at https://www.abfunds.com/link/AB/AWPZX-S. You can also request this information by contacting us at (800) 227 4618.

What were the Fund costs for the last six months?

(Based on a hypothetical $10,000 investment)

Class Name
Cost of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class Z
$38
0.75%Footnote Reference*
Footnote Description
Footnote*
Annualized

Key Fund Statistics

Net Assets
$901,984,131
# of Portfolio Holdings
55
Portfolio Turnover Rate
37%
Total Advisory Fees Paid (Net)
$2,919,477

Graphical Representation of Holdings

10 Top Holdings

Company
U.S. $ Value
% of Net Assets
Taiwan Semiconductor Manufacturing Co., Ltd.
$41,341,277
4.6%
Halma PLC
$38,419,157
4.3%
Roche Holding AG
$38,308,362
4.2%
AIA Group Ltd. - Class H
$35,871,431
4.0%
Danone SA
$35,613,217
3.9%
Prysmian SpA
$33,623,914
3.7%
Samsung Electronics Co., Ltd.
$32,308,967
3.6%
Erste Group Bank AG
$31,969,542
3.5%
STERIS PLC
$31,282,086
3.5%
Veralto Corp.
$31,261,274
3.5%
Total
$349,999,227
38.8%

Class Z:AWPZX

1

Sector Breakdown (% of Net Assets)

Financials
28.6%
Information Technology
24.6%
Health Care
16.1%
Industrials
12.2%
Consumer Staples
4.0%
Utilities
2.8%
Energy
2.1%
Communication Services
1.7%
Materials
1.0%
Consumer Discretionary
1.0%
Others
0.7%
Short-Term Investments
4.6%
Other assets less liabilities
0.6%
Total
100.0%

Country Breakdown (% of Net Assets)

United Kingdom
14.5%
United States
11.2%
Switzerland
9.4%
Canada
8.3%
Germany
6.7%
Italy
6.2%
Brazil
5.3%
Japan
5.1%
South Korea
5.0%
France
4.7%
Taiwan
4.6%
Hong Kong
4.0%
Austria
3.5%
Others
6.3%
Short-Term Investments
4.6%
Other assets less liabilities
0.6%
Total
100.0%

Availability of Additional Information

You can find additional information at https://www.abfunds.com/link/AB/AWPZX-S, including the Fund's:

• Prospectus

• Financial information

• Fund holdings

• Proxy voting information

You can also request this information by contacting us at (800) 227 4618.

Householding

Shareholders who have consented to receive a single annual or semi-annual shareholder report at a shared address may revoke this consent by contacting us at (800) 227 4618.

The [A/B] logo and AllianceBernstein® are registered trademarks used by permission of the owner, AllianceBernstein L.P.

SIT-Z-0154-1225

Class Z:AWPZX

2

ITEM 2. CODE OF ETHICS.

Not applicable when filing a semi-annual report to shareholders.

ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT.

Not applicable when filing a semi-annual report to shareholders.

ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES.

Not applicable when filing a semi-annual report to shareholders.

ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS.

Not applicable when filing a semi-annual report to shareholders.

ITEM 6. INVESTMENTS.

Please see Schedule of Investments contained in the Financial Statements included under Item 7 of this Form N-CSR.

ITEM 7. FINANCIAL STATEMENTS AND FINANCIAL HIGHLIGHTS FOR OPEN-ENDMANAGEMENT INVESTMENT COMPANIES.

December 31, 2025

SEMI-ANNUAL FINANCIAL STATEMENTS AND ADDITIONAL INFORMATION

AB Sustainable International Thematic Fund

Investment Products Offered

Are Not FDIC Insured May Lose Value Are Not Bank Guaranteed

Investors should consider the investment objectives, risks, charges and expenses of the Fund carefully before investing. For copies of our prospectus or summary prospectus, which contain this and other information, visit us online at www.abfunds.com or contact your AB representative. Please read the prospectus and/or summary prospectus carefully before investing.

This shareholder report must be preceded or accompanied by the Fund's prospectus for individuals who are not current shareholders of the Fund.

You may obtain a description of the Fund's proxy voting policies and procedures, and information regarding how the Fund voted proxies relating to portfolio securities during the most recent 12-monthperiod ended June 30, without charge. Simply visit AB's website at www.abfunds.com, or go to the Securities and Exchange Commission's (the "Commission") website at www.sec.gov, or call AB at (800) 227 4618.

The Fund files its complete schedule of portfolio holdings with the Commission for the first and third quarters of each fiscal year as an exhibit to its reports on Form N-PORT. The Fund's Form N-PORT reports are available on the Commission's website at www.sec.gov. AB publishes full portfolio holdings for the Fund monthly at www.abfunds.com.

AllianceBernstein Investments, Inc. (ABI) is the distributor of the AB family of mutual funds. ABI is a member of FINRA and is an affiliate of AllianceBernstein L.P., the Adviser of the funds.

The [A/B] logo and AllianceBernstein® are registered trademarks used by permission of the owner, AllianceBernstein L.P.

PORTFOLIO OF INVESTMENTS

December 31, 2025 (unaudited)

Company Shares U.S. $ Value

COMMON STOCKS - 94.8%

Financials - 28.6%

Banks - 12.9%

BPER Banca SpA

        667,970 $ 9,025,931

Erste Group Bank AG

266,614 31,969,542

HDFC Bank Ltd.

1,850,707 20,444,566

Intesa Sanpaolo SpA

1,948,267 13,462,731

NatWest Group PLC

3,124,897 27,412,477

NU Holdings Ltd./Cayman Islands - Class A(a)

827,418 13,850,977
116,166,224

Capital Markets - 7.3%

London Stock Exchange Group PLC

228,360 27,469,083

Partners Group Holding AG

14,109 17,311,484

Patria Investments Ltd. - Class A

573,260 9,109,102

TMX Group Ltd.

305,573 11,628,048
65,517,717

Consumer Finance - 2.0%

Credit Saison Co., Ltd.

325,800 8,739,697

Gentera SAB de CV

3,792,990 9,680,734
18,420,431

Insurance - 6.4%

AIA Group Ltd. - Class H

3,485,000 35,871,431

Beazley PLC

1,955,324 21,865,600
57,737,031
257,841,403

Information Technology - 24.6%

Electronic Equipment, Instruments & Components - 6.4%

Halma PLC

809,423 38,419,157

IsuPetasys Co., Ltd.

153,160 12,700,831

VusionGroup

27,975 6,681,524
57,801,512

IT Services - 3.3%

Shopify, Inc. - Class A(a)

184,970 29,774,621

Semiconductors & Semiconductor Equipment - 8.8%

Infineon Technologies AG

662,595 28,909,657

NXP Semiconductors NV

42,649 9,257,392

Taiwan Semiconductor Manufacturing Co., Ltd.

841,000 41,341,277
79,508,326

Software - 2.5%

SAP SE

93,636 22,750,601
ABFunds.com

AB Sustainable International Thematic Fund 1

PORTFOLIO OF INVESTMENTS (continued)

Company Shares U.S. $ Value

Technology Hardware, Storage & Peripherals - 3.6%

Samsung Electronics Co., Ltd.

385,480 $ 32,308,967
222,144,027

Health Care - 16.1%

Health Care Equipment & Supplies - 7.8%

Eckert & Ziegler SE

483,530 8,594,316

Shandong Weigao Group Medical Polymer Co., Ltd. - Class H

14,042,800 9,054,323

STERIS PLC

123,391 31,282,086

Terumo Corp.

1,504,792 21,872,415
70,803,140

Health Care Providers & Services - 1.0%

Apollo Hospitals Enterprise Ltd.

111,550 8,735,181

Pharmaceuticals - 7.3%

Galderma Group AG(a)

135,920 27,677,778

Roche Holding AG

92,763 38,308,362
65,986,140
145,524,461

Industrials - 12.2%

Commercial Services & Supplies - 3.5%

Veralto Corp.

313,302 31,261,274

Construction & Engineering - 1.6%

WSP Global, Inc.

78,844 14,275,845

Electrical Equipment - 3.7%

Prysmian SpA

337,057 33,623,914

Machinery - 0.1%

Kardex Holding AG (REG)

4,075 1,411,288

Professional Services - 3.3%

Experian PLC

309,153 13,938,651

RELX PLC

384,656 15,496,566
29,435,217
110,007,538

Consumer Staples - 4.0%

Food Products - 4.0%

Danone SA

394,829 35,613,217

Utilities - 2.8%

Water Utilities - 2.8%

Cia de Saneamento Basico do Estado de Sao Paulo SABESP

1,035,883 24,936,588

2 AB Sustainable International Thematic Fund

ABFunds.com

PORTFOLIO OF INVESTMENTS (continued)

Company Shares U.S. $ Value

Energy - 2.1%

Oil, Gas & Consumable Fuels - 2.1%

Cameco Corp.

209,013 $ 19,122,600

Communication Services - 1.7%

Entertainment - 1.7%

Spotify Technology SA(a)

26,110 15,162,338

Materials - 1.0%

Chemicals - 1.0%

Nissan Chemical Corp.

269,100 9,247,033

Consumer Discretionary - 1.0%

Broadline Retail - 1.0%

MercadoLibre, Inc.(a)

4,479 9,021,871

Real Estate - 0.7%

Real Estate Management & Development - 0.7%

Katitas Co., Ltd.

308,300 6,269,415

Total Common Stocks
(cost $642,321,088)

854,890,491

SHORT-TERM INVESTMENTS - 4.6%

Investment Companies - 4.5%

AB Fixed Income Shares, Inc. - Government Money Market Portfolio - Class AB, 3.615%(b)(c)(d)
(cost $40,905,785)

40,905,785 40,905,785
Principal
Amount
(000)

Time Deposits - 0.1%

BBH, New York
(0.90)%, 01/05/2026

CHF 72 90,424

0.27%, 01/02/2026

DKK 0 * 34

Citibank, London
0.81%, 01/02/2026

EUR 77 90,878

2.66%, 01/02/2026

GBP 67 90,814

HSBC, Hong Kong
2.38%, 01/02/2026

HKD 708 91,016

Nordea, Oslo
2.00%, 01/02/2026

NOK 1 145

Royal Bank of Canada, Toronto
1.08%, 01/02/2026

CAD 531 386,871

SEB, Stockholm
(3.79)%, 01/02/2026

SEK 849 92,168

SMBC, Tokyo
0.15%, 01/05/2026

JPY 14,199 90,646
ABFunds.com

AB Sustainable International Thematic Fund 3

PORTFOLIO OF INVESTMENTS (continued)

Company Principal
Amount
(000)
U.S. $ Value

Standard Chartered Bank, Johannesburg
4.55%, 01/02/2026

ZAR 0 * $ 4

Total Time Deposits
(cost $933,000)

933,000

Total Short-Term Investments
(cost $41,838,785)

41,838,785

Total Investments - 99.4%
(cost $684,159,873)

896,729,276

Other assets less liabilities - 0.6%

5,254,855

Net Assets - 100.0%

$ 901,984,131

Country Breakdown (% of Net Assets)

United Kingdom

14.5 %

United States

11.2 %

Switzerland

9.4 %

Canada

8.3 %

Germany

6.7 %

Italy

6.2 %

Brazil

5.3 %

Japan

5.1 %

South Korea

5.0 %

France

4.7 %

Taiwan

4.6 %

Hong Kong

4.0 %

Austria

3.5 %

Others

6.3 %

Short-Term Investments

4.6 %

Other assets less liabilities

0.6 %

Total

100.0 %

FORWARD CURRENCY EXCHANGE CONTRACTS (see Note D)

Counterparty Contracts to
Deliver
(000)
In Exchange
For
(000)
Settlement
Date
Unrealized
Appreciation
(Depreciation)

Bank of America NA

KRW 3,602,170 USD 2,472 01/09/2026 $ (25,804 )

Bank of America NA

USD 8,283 KRW 12,111,418 01/09/2026 114,326

Bank of America NA

USD 17,698 KRW 24,782,373 01/09/2026 (515,866 )

Bank of America NA

JPY 451,426 USD 2,893 01/23/2026 6,607

Bank of America NA

USD 67,769 JPY 10,213,773 01/23/2026  (2,455,130 )

Bank of America NA

USD 39,128 AUD 60,208 01/28/2026 1,057,507

Bank of America NA

CHF 29,943 USD 37,610 01/29/2026 (293,313 )

Bank of America NA

EUR 2,861 USD 3,366 01/29/2026 (87 )

Bank of America NA

USD 8,432 SGD 10,815 02/26/2026 9,867

Bank of New York Mellon Corp. (The)

HKD 21,607 USD 2,783 01/14/2026 5,668

4 AB Sustainable International Thematic Fund

ABFunds.com

PORTFOLIO OF INVESTMENTS (continued)

Counterparty Contracts to
Deliver
(000)
In Exchange
For
(000)
Settlement
Date
Unrealized
Appreciation
(Depreciation)

Barclays Bank PLC

BRL 13,699 USD 2,490 01/05/2026 $ (10,291 )

Barclays Bank PLC

USD 2,500 BRL 13,699 01/05/2026 (319 )

Barclays Bank PLC

KRW 19,279,389 USD 13,227 01/09/2026 (140,377 )

Barclays Bank PLC

HKD 221,927 USD 28,561 01/14/2026 36,494

Barclays Bank PLC

USD 75,944 CNH 536,815 01/16/2026 1,064,585

Barclays Bank PLC

USD 6,704 ZAR 112,776 02/26/2026 81,738

BNP Paribas SA

USD 3,110 EUR 2,674 01/29/2026 36,594

BNP Paribas SA

GBP 1,714 USD 2,310 02/26/2026 (249 )

BNP Paribas SA

MXN 72,269 USD 3,987 03/12/2026 (832 )

Brown Brothers Harriman & Co.

HKD 18,819 USD 2,424 01/14/2026 5,620

Brown Brothers Harriman & Co.

USD 2,222 HKD 17,253 01/14/2026 (4,793 )

Brown Brothers Harriman & Co.

USD 4,314 JPY 651,288 01/23/2026 (149,625 )

Brown Brothers Harriman & Co.

AUD 3,591 USD 2,353 01/28/2026 (43,290 )

Brown Brothers Harriman & Co.

USD 2,697 CAD 3,774 02/05/2026 56,414

Citibank NA

BRL 139,446 USD 25,343 01/05/2026    (104,752 )

Citibank NA

USD 25,026 BRL 139,446 01/05/2026 421,309

Citibank NA

USD 29,438 HKD 228,847 01/14/2026 (23,160 )

Citibank NA

CNH 36,482 USD 5,167 01/16/2026 (66,014 )

Citibank NA

USD 2,968 EUR 2,523 01/29/2026 518

Citibank NA

BRL 139,446 USD 24,842 02/03/2026 (407,536 )

Citibank NA

CAD 3,297 USD 2,361 02/05/2026 (44,549 )

Citibank NA

USD 2,416 INR 218,302 02/10/2026 4,830

Citibank NA

USD 10,661 INR 948,849 02/10/2026 (139,260 )

Deutsche Bank AG

USD 2,330 CNH 16,445 01/16/2026 29,284

Deutsche Bank AG

JPY 511,523 USD 3,289 01/23/2026 17,633

Deutsche Bank AG

USD 7,194 JPY 1,107,718 01/23/2026 (110,585 )

Deutsche Bank AG

USD 2,397 TWD 75,051 02/12/2026 (11,597 )

Deutsche Bank AG

GBP 43,388 USD 57,769 02/26/2026 (709,756 )

Goldman Sachs Bank USA

EUR 8,970 USD 10,560 01/29/2026 6,367

Goldman Sachs Bank USA

USD 2,229 ZAR 37,479 02/26/2026 26,422

HSBC Bank USA

CNH 88,187 USD 12,433 01/16/2026 (217,396 )

HSBC Bank USA

USD 3,575 CHF 2,821 01/29/2026 (3,613 )

HSBC Bank USA

USD 10,973 TWD 344,012 02/12/2026 (37,383 )

JPMorgan Chase Bank NA

KRW 5,699,928 USD 3,890 01/09/2026 (62,370 )

JPMorgan Chase Bank NA

USD 2,249 KRW 3,310,158 01/09/2026 46,455

JPMorgan Chase Bank NA

USD 12,249 HKD 95,213 01/14/2026 (11,389 )

JPMorgan Chase Bank NA

USD 2,270 CNH 16,093 01/16/2026 38,991

JPMorgan Chase Bank NA

USD 3,854 JPY 587,285 01/23/2026 (98,811 )

JPMorgan Chase Bank NA

CHF 1,859 USD 2,321 01/29/2026 (31,836 )

JPMorgan Chase Bank NA

EUR 2,278 USD 2,647 01/29/2026 (33,535 )

JPMorgan Chase Bank NA

USD 2,275 EUR 1,965 01/29/2026 37,174

JPMorgan Chase Bank NA

CAD 15,407 USD 11,193 02/05/2026 (47,914 )

JPMorgan Chase Bank NA

TWD 275,955 USD 8,928 02/12/2026 155,776

Morgan Stanley Capital Services LLC

BRL 141,260 USD 25,997 01/05/2026 217,992

Morgan Stanley Capital Services LLC

USD 25,672 BRL 141,260 01/05/2026 106,114

Morgan Stanley Capital Services LLC

KRW 3,771,042 USD 2,624 01/09/2026 9,313

Morgan Stanley Capital Services LLC

USD 3,046 IDR 50,768,640 01/23/2026 (6,286 )

Morgan Stanley Capital Services LLC

USD 2,563 JPY 398,850 01/23/2026 (12,876 )

Morgan Stanley Capital Services LLC

CHF 1,769 USD 2,210 01/29/2026 (29,542 )

Morgan Stanley Capital Services LLC

EUR 2,104 USD 2,479 01/29/2026 3,932

Morgan Stanley Capital Services LLC

EUR 2,516 USD 2,913 01/29/2026 (47,075 )

Morgan Stanley Capital Services LLC

USD 34,133 EUR 29,409 01/29/2026 468,461

Morgan Stanley Capital Services LLC

USD 10,300 TWD 325,778 02/12/2026 56,589

Morgan Stanley Capital Services LLC

USD 3,447 NOK 34,876 02/13/2026 12,902

Morgan Stanley Capital Services LLC

USD 5,611 ILS 17,969 03/12/2026 33,059
ABFunds.com

AB Sustainable International Thematic Fund 5

PORTFOLIO OF INVESTMENTS (continued)

Counterparty Contracts to
Deliver
(000)
In Exchange
For
(000)
Settlement
Date
Unrealized
Appreciation
(Depreciation)

Standard Chartered Bank

KRW 3,395,705 USD 2,397 01/09/2026 $ 42,955

Standard Chartered Bank

USD 2,328 KRW 3,429,201 01/09/2026 49,123

Standard Chartered Bank

HKD 61,696 USD 7,940 01/14/2026 10,149

Standard Chartered Bank

USD 2,764 CNH 19,596 01/16/2026 47,251

Standard Chartered Bank

USD 2,236 TWD 69,623 02/12/2026 (23,218 )

UBS AG

BRL 11,885 USD 2,214 01/05/2026 44,996

UBS AG

USD 2,160 BRL 11,885 01/05/2026 8,928

UBS AG

KRW 16,078,002 USD 11,186 01/09/2026 38,724

UBS AG

KRW 5,308,666 USD 3,659 01/09/2026 (21,812 )

UBS AG

HKD 210,362 USD 27,049 01/14/2026 10,656

UBS AG

JPY 346,010 USD 2,230 01/23/2026 17,722

UBS AG

USD 3,716 JPY 568,355 01/23/2026 (82,043 )

UBS AG

EUR 2,004 USD 2,359 01/29/2026 865

UBS AG

USD 6,347 CHF 5,020 01/29/2026 7,675

UBS AG

USD 10,707 CAD 14,930 02/05/2026 186,231

UBS AG

USD 17,071 SEK 160,819 02/13/2026 433,395

UBS AG

GBP 4,108 USD 5,529 02/26/2026 (8,102 )
$    (965,175 )
*

Principal amount less than 500.

(a)

Non-incomeproducing security.

(b)

The rate shown represents the 7-dayyield as of period end.

(c)

To obtain a copy of the fund's shareholder report, please go to the Securities and Exchange Commission's website at www.sec.gov. Additionally, shareholder reports for AB funds can be obtained by calling AB at (800) 227-4618.

(d)

Affiliated investments.

Currency Abbreviations:

AUD - Australian Dollar

BRL - Brazilian Real

CAD - Canadian Dollar

CHF - Swiss Franc

CNH - Chinese Yuan Renminbi (Offshore)

DKK - Danish Krone

EUR - Euro

GBP - Great British Pound

HKD - Hong Kong Dollar

IDR - Indonesian Rupiah

ILS - Israeli Shekel

INR - Indian Rupee

JPY - Japanese Yen

KRW - South Korean Won

MXN - Mexican Peso

NOK - Norwegian Krone

SEK - Swedish Krona

SGD - Singapore Dollar

TWD - New Taiwan Dollar

USD - United States Dollar

ZAR - South African Rand

Glossary:

REG - Registered Shares

See notes to financial statements.

6 AB Sustainable International Thematic Fund

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STATEMENT OF ASSETS & LIABILITIES

December 31, 2025 (unaudited)

Assets

Investments in securities, at value

Unaffiliated issuers (cost $643,254,088)

$  855,823,491

Affiliated issuers (cost $40,905,785)

40,905,785

Cash

185

Cash collateral due from broker

950,000

Foreign currencies, at value (cost $173,997)

175,655

Receivable for investment securities sold

6,402,064

Unrealized appreciation on forward currency exchange contracts

5,067,211

Unaffiliated dividends receivable

4,178,625

Receivable for capital stock sold

328,058

Affiliated dividends receivable

121,626

Receivable due from Adviser

7,343

Total assets

913,960,043
Liabilities

Unrealized depreciation on forward currency exchange contracts

6,032,386

Payable for investment securities purchased and foreign currency transactions

3,062,118

Payable for capital gains taxes

1,261,787

Advisory fee payable

494,834

Cash collateral due to broker

470,000

Payable for capital stock redeemed

160,439

Administrative fee payable

99,810

Transfer Agent fee payable

33,065

Distribution fee payable

26,863

Directors' fee payable

7,389

Accrued expenses

327,221

Total liabilities

11,975,912

Net Assets

$ 901,984,131
Composition of Net Assets

Capital stock, at par

$ 40,550

Additional paid-incapital

712,259,606

Distributable earnings

189,683,975
$ 901,984,131

Net Asset Value Per Share-27 billion shares of capital stock authorized, $.001 par value

Class Net Assets Shares
Outstanding
Net Asset
Value
A $ 125,282,981 5,849,787 $ 21.42 *
C $ 385,890 17,331 $ 22.27
Advisor $  763,538,379 34,094,422 $  22.39
I $ 901,468 40,562 $ 22.22
Z $ 11,875,413 547,817 $ 21.68
*

The maximum offering price per share for Class A shares was $22.37, which reflects a sales charge of 4.25%.

See notes to financial statements.

ABFunds.com

AB Sustainable International Thematic Fund 7

STATEMENT OF OPERATIONS

Six Months Ended December 31, 2025 (unaudited)

Investment Income

Dividends

Unaffiliated issuers (net of foreign taxes withheld of $391,209)

$  4,237,654

Affiliated issuers

628,168

Interest

9,272 $  4,875,094
Expenses

Advisory fee (see Note B)

2,950,957

Transfer agency-Class A

27,820

Transfer agency-Class C

136

Transfer agency-Advisor Class

165,911

Transfer agency-Class I

489

Transfer agency-Class Z

1,618

Distribution fee-Class A

160,491

Distribution fee-Class C

2,236

Custody and accounting

123,710

Administrative

63,128

Audit and tax

54,957

Registration fees

47,592

Printing

28,948

Legal

28,915

Directors' fees

13,656

Miscellaneous

25,860

Total expenses

3,696,424

Less: expenses waived and reimbursed by the Adviser (see Note B)

(31,480 )

Net expenses

3,664,944

Net investment income

1,210,150
Realized and Unrealized Gain (Loss) on Investment and Foreign Currency Transactions

Net realized gain (loss) on:

Investment transactions(a)

8,701,006

Forward currency exchange contracts

(4,842,952 )

Foreign currency transactions

152,212

Net change in unrealized appreciation (depreciation) on:

Investments(b)

(2,404,218 )

Forward currency exchange contracts

(651,137 )

Foreign currency denominated assets and liabilities

(113,998 )

Net gain on investment and foreign currency transactions

840,913

Net Increase in Net Assets from Operations

$ 2,051,063
(a)

Net of foreign realized capital gains taxes of $15,857.

(b)

Net of decrease in accrued foreign capital gains taxes on unrealized gains of $205,299.

See notes to financial statements.

8 AB Sustainable International Thematic Fund

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STATEMENT OF CHANGES IN NET ASSETS

Six Months Ended
December 31, 2025
(unaudited)
Year Ended
June 30,
2025
Increase (Decrease) in Net Assets from Operations

Net investment income

$ 1,210,150 $ 8,167,147

Net realized gain on investment and foreign currency transactions

4,010,266 16,362,775

Net change in unrealized appreciation (depreciation) on investments and foreign currency denominated assets and liabilities

(3,169,353 ) 77,835,849

Net increase in net assets from operations

2,051,063 102,365,771
Capital Stock Transactions

Net decrease

(20,479,588 )  (125,466,585 )

Total decrease

(18,428,525 ) (23,100,814 )
Net Assets

Beginning of period

920,412,656 943,513,470

End of period

$  901,984,131 $ 920,412,656

See notes to financial statements.

ABFunds.com

AB Sustainable International Thematic Fund 9

NOTES TO FINANCIAL STATEMENTS

December 31, 2025 (unaudited)

NOTE A

Significant Accounting Policies

AB Sustainable International Thematic Fund, Inc. (the "Fund") is organized as a Maryland corporation and is registered under the Investment Company Act of 1940 (the "1940 Act") as a open-endmanagement investment company. The Fund offers Class A, Class C, Advisor Class, Class I and Class Z shares. Class B, Class R, Class K and Class T shares have been authorized but currently are not offered. Effective May 20, 2024, Class R and Class K were liquidated. Class A shares are sold with a front-endsales charge of up to 4.25% for purchases not exceeding $1,000,000. With respect to purchases of $1,000,000 or more, Class A shares redeemed within one year of purchase may be subject to a contingent deferred sales charge of 1%. Class C shares are subject to a contingent deferred sales charge of 1% on redemptions made within the first year after purchase, and 0% after the first year of purchase. Class C shares automatically convert to Class A shares eight years after the end of the calendar month of purchase. Advisor Class, Class I and Class Z shares are sold without an initial or contingent deferred sales charge and are not subject to ongoing distribution expenses. At meetings held on August 5-6,2025, the Fund's Board of Directors (the "Board") approved a reverse share split for Class C shares. The reverse share spilt was effective on October 20, 2025. All nine classes of shares have identical voting, dividend, liquidation and other rights, except that the classes bear different distribution and transfer agency expenses. Each class has exclusive voting rights with respect to its distribution plan. The financial statements have been prepared in conformity with U.S. generally accepted accounting principles ("U.S. GAAP"), which require management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities in the financial statements and amounts of income and expenses during the reporting period. Actual results could differ from those estimates. The Fund is an investment company under U.S. GAAP and follows the accounting and reporting guidance applicable to investment companies. The following is a summary of significant accounting policies followed by the Fund.

1. Security Valuation

Portfolio securities are valued at market value determined on the basis of market quotations or, if market quotations are not readily available or are unreliable, at "fair value" as determined in accordance with procedures approved by and under the oversight of the Fund's Board of Directors (the "Board"). Pursuant to these procedures, AllianceBernstein L.P. (the "Adviser") serves as the Fund's valuation designee pursuant to Rule 2a-5of the 1940 Act. In this capacity, the Adviser is responsible, among other things, for making all fair value determinations relating to the Fund's portfolio investments, subject to the Board's oversight.

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NOTES TO FINANCIAL STATEMENTS (continued)

In general, the market values of securities which are readily available and deemed reliable are determined as follows: securities listed on a national securities exchange (other than securities listed on the NASDAQ Stock Market, Inc. ("NASDAQ")) or on a foreign securities exchange are valued at the last sale price at the close of the exchange or foreign securities exchange. If there has been no sale on such day, the securities are valued at the last traded price from the previous day. Securities listed on more than one exchange are valued by reference to the principal exchange on which the securities are traded; securities listed only on NASDAQ are valued in accordance with the NASDAQ Official Closing Price; listed and over-the-counter("OTC") put and call options are valued using market quotations when available. Listed options are generally valued at the last reported sale price, provided such price is within the bid-askrange, otherwise, they are valued based on the bid or ask price, as determined by a pricing service; options on futures may be valued at their settlement prices; OTC options, including flexible exchange-traded options ("Flex Options"), are generally valued using models that consider the terms of the option and relevant market inputs and are typically valued at transaction price on the trade date; open futures are valued using the closing settlement price or, in the absence of such a price, the most recent quoted bid price. If there are no quotations available for the day of valuation, the last available closing settlement price is used; U.S. Government securities and any other debt instruments having 60 days or less remaining until maturity are generally valued at market by an independent pricing vendor, if a market price is available. If a market price is not available, the securities are valued at amortized cost. This methodology is commonly used for short-term securities that have an original maturity of 60 days or less, as well as short-term securities that had an original term to maturity that exceeded 60 days. In instances when amortized cost is utilized, the Valuation Committee (the "Committee") must reasonably conclude that the utilization of amortized cost is approximately the same as the fair value of the security. Factors the Committee will consider include, but are not limited to, an impairment of the creditworthiness of the issuer or material changes in interest rates. Fixed-income securities, including mortgage-backed and asset-backed securities, may be valued on the basis of prices provided by a pricing service or at a price obtained from one or more of the major broker-dealers. In cases where broker-dealer quotes are obtained, the Adviser may establish procedures whereby changes in market yields or spreads are used to adjust, on a daily basis, a recently obtained quoted price on a security. Swaps and other derivatives are valued daily, primarily using independent pricing services, independent pricing models using market inputs, as well as third party broker-dealers or counterparties. Open-endmutual funds are valued at the closing net asset value per share, while exchange traded funds are valued at the closing market price per share.

Securities for which market quotations are not readily available (including restricted securities) or are deemed unreliable are valued at fair value as deemed appropriate by the Adviser. Factors considered in making this determination may

ABFunds.com

AB Sustainable International Thematic Fund 11

NOTES TO FINANCIAL STATEMENTS (continued)

include, but are not limited to, information obtained by contacting the issuer, analysts, analysis of the issuer's financial statements or other available documents. In addition, the Fund may use fair value pricing for securities primarily traded in non-U.S.markets because most foreign markets close well before the Fund values its securities at 4:00 p.m., Eastern Time. The earlier close of these foreign markets gives rise to the possibility that significant events, including broad market moves, may have occurred in the interim and may materially affect the value of those securities. To account for this, the Fund generally values many of its foreign equity securities using fair value prices based on third party vendor modeling tools to the extent available.

2. Fair Value Measurements

In accordance with U.S. GAAP regarding fair value measurements, fair value is defined as the price that the Fund would receive to sell an asset or pay to transfer a liability in an orderly transaction between market participants at the measurement date. U.S. GAAP establishes a framework for measuring fair value, and a three-level hierarchy for fair value measurements based upon the transparency of inputs to the valuation of an asset or liability (including those valued based on their market values as described in Note A.1 above). Inputs may be observable or unobservable and refer broadly to the assumptions that market participants would use in pricing the asset or liability. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability based on market data obtained from sources independent of the Fund. Unobservable inputs reflect the Fund's own assumptions about the assumptions that market participants would use in pricing the asset or liability based on the best information available in the circumstances. Each investment is assigned a level based upon the observability of the inputs which are significant to the overall valuation. The three-tier hierarchy of inputs is summarized below.

Level 1-quoted prices in active markets for identical investments

Level 2-other significant observable inputs (including quoted prices for similar investments, interest rates, prepayment speeds, credit risk, etc.)

Level 3-significant unobservable inputs (including the Fund's own assumptions in determining the fair value of investments)

The fair value of debt instruments, such as bonds, and over-the-counterderivatives is generally based on market price quotations, recently executed market transactions (where observable) or industry recognized modeling techniques and are generally classified as Level 2. Pricing vendor inputs to Level 2 valuations may include quoted prices for similar investments in active markets, interest rate curves, coupon rates, currency rates, yield curves, option adjusted spreads, default rates, credit spreads and other unique security features in order to estimate the relevant cash flows which are then discounted to calculate fair values. If these inputs are unobservable and significant to the fair value, these investments will be classified as Level 3.

12 AB Sustainable International Thematic Fund

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NOTES TO FINANCIAL STATEMENTS (continued)

Where readily available market prices or relevant bid prices are not available for certain equity investments, such investments may be valued based on similar publicly traded investments, movements in relevant indices since last available prices or based upon underlying company fundamentals and comparable company data (such as multiples to earnings or other multiples to equity). Where an investment is valued using an observable input, such as another publicly traded security, the investment will be classified as Level 2. If management determines that an adjustment is appropriate based on restrictions on resale, illiquidity or uncertainty, and such adjustment is a significant component of the valuation, the investment will be classified as Level 3. An investment will also be classified as Level 3 where management uses company fundamentals and other significant inputs to determine the valuation.

The following table summarizes the valuation of the Fund's investments by the above fair value hierarchy levels as of December 31, 2025:

Investments in
Securities

Level 1 Level 2 Level 3 Total

Assets:

Common Stocks:

Financials

$ 44,268,861 $ 213,572,542 $ - 0 - $ 257,841,403

Information Technology

39,032,013 183,112,014 - 0 - 222,144,027

Health Care

31,282,086 114,242,375 - 0 - 145,524,461

Industrials

45,537,119 64,470,419 - 0 - 110,007,538

Consumer Staples

- 0 - 35,613,217 - 0 - 35,613,217

Utilities

- 0 - 24,936,588 - 0 - 24,936,588

Energy

19,122,600 - 0 - - 0 - 19,122,600

Communication Services

15,162,338 - 0 - - 0 - 15,162,338

Materials

- 0 - 9,247,033 - 0 - 9,247,033

Consumer Discretionary

9,021,871 - 0 - - 0 - 9,021,871

Real Estate

- 0 - 6,269,415 - 0 - 6,269,415

Short-Term Investments:

Investment Companies

40,905,785 - 0 - - 0 - 40,905,785

Time Deposits

933,000 - 0 - - 0 - 933,000

Total Investments in Securities

245,265,673 651,463,603 + - 0 - 896,729,276

Other Financial Instruments*:

Assets

Forward Currency Exchange Contracts

- 0 - 5,067,211 - 0 - 5,067,211

Liabilities

Forward Currency Exchange Contracts

- 0 - (6,032,386 ) - 0 - (6,032,386 )

Total

$  245,265,673 $  650,498,428 $  - 0 - $  895,764,101
+

A significant portion of the Fund's foreign equity investments are categorized as Level 2 investments since they are valued using fair value prices based on third party vendor modeling tools to the extent available, see Note A.1.

*

Other financial instruments include derivative instruments, such as futures, forwards and swaps. Derivative instruments are valued at the unrealized appreciation (depreciation) on the instrument. Other financial instruments may also include swaps with upfront premiums, written options and written swaptions which are valued at market value.

3. Currency Translation

Assets and liabilities denominated in foreign currencies and commitments under forward currency exchange contracts are translated into U.S. dollars at the

ABFunds.com

AB Sustainable International Thematic Fund 13

NOTES TO FINANCIAL STATEMENTS (continued)

mean of the quoted bid and ask prices of such currencies against the U.S. dollar. Purchases and sales of portfolio securities are translated into U.S. dollars at the rates of exchange prevailing when such securities were acquired or sold. Income and expenses are translated into U.S. dollars at the rates of exchange prevailing when accrued.

Net realized gain or loss on foreign currency transactions represents foreign exchange gains and losses from sales and maturities of foreign fixed income investments, holding of foreign currencies, currency gains or losses realized between the trade and settlement dates on foreign investment transactions, and the difference between the amounts of dividends, interest and foreign withholding taxes recorded on the Fund's books and the U.S. dollar equivalent amounts actually received or paid. Net unrealized currency gains and losses from valuing foreign currency denominated assets and liabilities at period end exchange rates are reflected as a component of net unrealized appreciation or depreciation of foreign currency denominated assets and liabilities.

4. Taxes

It is the Fund's policy to meet the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute all of its investment company taxable income and net realized gains, if any, to shareholders. Therefore, no provisions for federal income or excise taxes are required. The Fund may be subject to taxes imposed by countries in which it invests. Such taxes are generally based on income and/or capital gains earned or repatriated. Taxes are accrued and applied to net investment income, net realized gains and net unrealized appreciation/depreciation as such income and/or gains are earned.

In accordance with U.S. GAAP requirements regarding accounting for uncertainties in income taxes, management has analyzed the Fund's tax positions taken or expected to be taken on federal and state income tax returns for all open tax years (the current and the prior three tax years) and has concluded that no provision for income tax is required in the Fund's financial statements.

5. Investment Income and Investment Transactions

Dividend income is recorded on the ex-dividenddate or as soon as the Fund is informed of the dividend. Interest income is accrued daily. Investment transactions are accounted for on the date the securities are purchased or sold. Investment gains or losses are determined on the identified cost basis. Non-cashdividends, if any, are recorded on the ex-dividenddate at the fair value of the securities received. The Fund amortizes premiums and accretes discounts as adjustments to interest income. The Fund accounts for distributions received from real estate investment trust ("REIT") investments or from regulated investment companies as dividend income, realized gain, or return of capital based on information provided by the REIT or the investment company.

14 AB Sustainable International Thematic Fund

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NOTES TO FINANCIAL STATEMENTS (continued)

6. Class Allocations

All income earned and expenses incurred by the Fund are borne on a pro-ratabasis by each outstanding class of shares, based on the proportionate interest in the Fund represented by the net assets of such class, except for class specific expenses which are allocated to the respective class. Realized and unrealized gains and losses are allocated among the various share classes based on respective net assets.

7. Dividends and Distributions

Dividends and distributions to shareholders, if any, are recorded on the ex-dividenddate. Income dividends and capital gains distributions are determined in accordance with federal tax regulations and may differ from those determined in accordance with U.S. GAAP. To the extent these differences are permanent, such amounts are reclassified within the capital accounts based on their federal tax basis treatment; temporary differences do not require such reclassification.

8. Cash and Short-Term Investments

Cash and short-term investments include cash on hand and short-term investments with maturities of less than one year when purchased.

9. Segment Information

The Fund represents a single operating segment. An operating segment is defined in U.S. GAAP as a component of a public entity that engages in business activities from which it may recognize revenues and incur expenses, has operating results that are regularly reviewed by the public entity's chief operating decision maker ("CODM") to make decisions about resources to be allocated to the segment and assess its performance, and has discrete financial information available. The Fund's President is the CODM. The CODM monitors the operating results of the Fund as a whole and the pre-determinedFund's long term investment strategy, which is executed by the portfolio management group. The qualitative and quantitative information contained within the financial statements is used by the CODM to assess the segment's performance versus the Fund's comparative benchmark and to make resource allocation decisions. Segment assets are reflected on the statement of assets and liabilities and segment expenses are listed on the statement of operations.

NOTE B

Advisory Fee and Other Transactions with Affiliates

Under the terms of the investment advisory agreement, the Fund pays the Adviser an advisory fee at an annual rate of .65% of the first $2.5 billion, .55% of the next $2.5 billion and .50% in excess of $5 billion, of the Fund's average daily net assets. The fee is accrued daily and paid monthly. The Adviser has agreed to waive its fees and bear certain expenses to the extent necessary to limit total operating expenses on an annual basis (the "Expense Caps") to 1.50%, 2.25%,

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AB Sustainable International Thematic Fund 15

NOTES TO FINANCIAL STATEMENTS (continued)

1.25%, 1.25% and 1.25% of the daily average net assets for Class A, Class C, Advisor Class, Class I and Class Z shares, respectively. The Expense Caps will remain in effect until October 31, 2026 and will be automatically extended for one-yearperiods thereafter unless terminated by the Adviser upon 60 days' notice to the Fund prior to that date. For the six months ended December 31, 2025, there was no such reimbursement. The Expense Caps may not be terminated by the Adviser before October 31, 2026.

Pursuant to the investment advisory agreement, the Fund may reimburse the Adviser for certain legal and accounting services provided to the Fund by the Adviser. For the six months ended December 31, 2025, the reimbursement for such services amounted to $63,128.

The Fund compensates AllianceBernstein Investor Services, Inc. ("ABIS"), a wholly-owned subsidiary of the Adviser, under a Transfer Agency Agreement for providing personnel and facilities to perform transfer agency services for the Fund. ABIS may make payments to intermediaries that provide omnibus account services, sub-accountingservices and/or networking services. Such compensation retained by ABIS amounted to $89,936 for the six months ended December 31, 2025.

AllianceBernstein Investments, Inc. (the "Distributor"), a wholly-owned subsidiary of the Adviser, serves as the distributor of the Fund's shares. The Distributor has advised the Fund that it has retained front-endsales charges of $488 from the sale of Class A shares and received $163 and $0 in contingent deferred sales charges imposed upon redemptions by shareholders of Class A and Class C shares, respectively, for the six months ended December 31, 2025.

The Fund may invest in AB Government Money Market Portfolio which has a contractual annual advisory fee rate of .20% of the portfolio's average daily net assets and bears its own expenses. Effective September 1, 2023, the Adviser has contractually agreed to waive .05% of the advisory fee of AB Government Money Market Portfolio (resulting in a net advisory fee of .15%) until August 31, 2024. In connection with the investment by the Fund in AB Government Money Market Portfolio, the Adviser has contractually agreed to waive its advisory fee from the Fund in an amount equal to the Fund's pro rata share of the effective advisory fee of AB Government Money Market Portfolio, as borne indirectly by the Fund as an acquired fund fee and expense. For the six months ended December 31, 2025, such waiver amounted to $31,480.

16 AB Sustainable International Thematic Fund

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NOTES TO FINANCIAL STATEMENTS (continued)

A summary of the Fund's transactions in AB mutual funds for the six months ended December 31, 2025 is as follows:

Fund

Market Value
6/30/25
(000)
Purchases
at Cost
(000)
Sales
Proceeds
(000)
Market Value
12/31/25
(000)
Dividend
Income
(000)

AB Government Money Market Portfolio

$  41,228 $  154,662 $  154,984 $  40,906 $  628

NOTE C

Distribution Services Agreement

The Fund has adopted a Distribution Services Agreement (the "Agreement") pursuant to Rule 12b-1under the 1940 Act. Under the Agreement, the Fund pays distribution and servicing fees to the Distributor at an annual rate of up to .30% of the Fund's average daily net assets attributable to Class A shares and 1% of the Fund's average daily net assets attributable to Class C shares. There are no distribution and servicing fees on Advisor Class, Class I and Class Z shares. The fees are accrued daily and paid monthly. Payments under the Agreement in respect of Class A shares are currently limited to an annual rate of .25% of Class A shares' average daily net assets. The Agreement provides that the Distributor will use such payments in their entirety for distribution assistance and promotional activities. Since the commencement of the Fund's operations, the Distributor has incurred expenses in excess of the distribution costs reimbursed by the Fund in the amount of $4,462,860 for Class C shares. While such costs may be recovered from the Fund in future periods so long as the Agreement is in effect, and the share class is active, the rate of the distribution and servicing fees payable under the Agreement may not be increased without a shareholder vote. In accordance with the Agreement, there is no provision for recovery of unreimbursed distribution costs incurred by the Distributor beyond the current fiscal year for Class A shares. The Agreement also provides that the Adviser may use its own resources to finance the distribution of the Fund's shares.

NOTE D

Investment Transactions

Purchases and sales of investment securities (excluding short-term investments) for the six months ended December 31, 2025, were as follows:

Purchases Sales

Investment securities (excluding U.S. government securities)

$  319,250,549 $  345,855,094

U.S. government securities

- 0 - - 0 -
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AB Sustainable International Thematic Fund 17

NOTES TO FINANCIAL STATEMENTS (continued)

The cost of investments for federal income tax purposes was substantially the same as the cost for financial reporting purposes. Accordingly, gross unrealized appreciation and unrealized depreciation are as follows:

Gross unrealized appreciation

$ 233,953,353

Gross unrealized depreciation

(22,349,125 )

Net unrealized appreciation

$  211,604,228

1. Derivative Financial Instruments

The Fund may use derivatives in an effort to earn income and enhance returns, to replace more traditional direct investments, to obtain exposure to otherwise inaccessible markets (collectively, "investment purposes"), or to hedge or adjust the risk profile of its portfolio.

The principal type of derivative utilized by the Fund, as well as the methods in which they may be used are:

Forward Currency Exchange Contracts

The Fund may enter into forward currency exchange contracts in order to hedge its exposure to changes in foreign currency exchange rates on its foreign portfolio holdings, to hedge certain firm purchase and sale commitments denominated in foreign currencies and for non-hedgingpurposes as a means of making direct investments in foreign currencies, as described below under "Currency Transactions".

A forward currency exchange contract is a commitment to purchase or sell a foreign currency at a future date at a negotiated forward rate. The gain or loss arising from the difference between the original contract and the closing of such contract would be included in net realized gain or loss on forward currency exchange contracts. Fluctuations in the value of open forward currency exchange contracts are recorded for financial reporting purposes as unrealized appreciation and/or depreciation by the Fund. Risks may arise from the potential inability of a counterparty to meet the terms of a contract and from unanticipated movements in the value of a foreign currency relative to the U.S. dollar.

During the six months ended December 31, 2025, the Fund held forward currency exchange contracts for hedging purposes.

The Fund typically enters into International Swaps and Derivatives Association, Inc. Master Agreements ("ISDA Master Agreement") with its OTC derivative contract counterparties in order to, among other things, reduce its credit risk to OTC counterparties. ISDA Master Agreements include provisions for general obligations, representations, collateral and events of default or termination. Under an ISDA Master Agreement, the Fund typically may offset with the OTC counterparty certain derivative financial instruments' payables and/or receivables with

18 AB Sustainable International Thematic Fund

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NOTES TO FINANCIAL STATEMENTS (continued)

collateral held and/or posted and create one single net payment (close-outnetting) in the event of default or termination. In the event of a default by an OTC counterparty, the return of collateral with market value in excess of the Fund's net liability, held by the defaulting party, may be delayed or denied.

The Fund's ISDA Master Agreements may contain provisions for early termination of OTC derivative transactions in the event the net assets of the Fund decline below specific levels ("net asset contingent features"). If these levels are triggered, the Fund's OTC counterparty has the right to terminate such transaction and require the Fund to pay or receive a settlement amount in connection with the terminated transaction. If OTC derivatives were held at period end, please refer to netting arrangements by the OTC counterparty tables below for additional details.

During the six months ended December 31, 2025, the Fund had entered into the following derivatives:

Asset Derivatives Liability Derivatives

Derivative Type

Statement of
Assets and
Liabilities
Location
Fair Value Statement of
Assets and
Liabilities
Location
Fair Value

Foreign currency contracts

Unrealized
appreciation on
forward currency
exchange contracts

$

5,067,211

Unrealized
depreciation on
forward currency
exchange contracts

$

6,032,386

Total

$  5,067,211 $  6,032,386

Derivative Type

Location of
Gain or (Loss)
on Derivatives
Within Statement
of Operations

Realized Gain
or (Loss) on
Derivatives
Change in
Unrealized
Appreciation or
(Depreciation)

Foreign currency
contracts

Net realized gain/(loss) on forward currency exchange contracts; Net change in unrealized appreciation (depreciation) on forward currency exchange contracts $ (4,842,952 ) $ (651,137 )

Total

$  (4,842,952 ) $  (651,137 )
ABFunds.com

AB Sustainable International Thematic Fund 19

NOTES TO FINANCIAL STATEMENTS (continued)

The following table represents the average monthly volume of the Fund's derivative transactions during the six months ended December 31, 2025:

Forward Currency Exchange Contracts:

Average principal amount of buy contracts

$ 396,923,817

Average principal amount of sale contracts

$  310,379,488

For financial reporting purposes, the Fund does not offset derivative assets and derivative liabilities that are subject to netting arrangements in the statement of assets and liabilities.

All OTC derivatives held at period end were subject to netting arrangements. The following table presents the Fund's derivative assets and liabilities by OTC counterparty net of amounts available for offset under ISDA Master Agreements ("MA") and net of the related collateral received/pledged by the Fund as of December 31, 2025. Exchange-traded derivatives and centrally cleared swaps are not subject to netting arrangements and as such are excluded from the tables.

Counterparty

Derivative
Assets
Subject to a
MA
Derivatives
Available
for Offset
Cash
Collateral
Received*
Security
Collateral
Received*
Net Amount
of Derivative
Assets

Bank of America NA

$ 1,188,307 $ (1,188,307 ) $ - 0 - $ - 0 - $ - 0 -

Bank of New York Mellon Corp. (The)

5,668 - 0 - - 0 - - 0 - 5,668

Barclays Bank PLC

1,182,817 (150,987 ) - 0 - - 0 - 1,031,830

BNP Paribas SA

36,594 (1,081 ) - 0 - - 0 - 35,513

Brown Brothers Harriman & Co.

62,034 (62,034 ) - 0 - - 0 - - 0 -

Citibank NA

426,657 (426,657 ) - 0 - - 0 - - 0 -

Deutsche Bank AG

46,917 (46,917 ) - 0 - - 0 - - 0 -

Goldman Sachs Bank USA

32,789 - 0 - - 0 - - 0 - 32,789

JPMorgan Chase Bank NA

278,396 (278,396 ) - 0 - - 0 - - 0 -

Morgan Stanley Capital Services LLC

908,362 (95,779 ) (470,000 ) - 0 - 342,583

Standard Chartered Bank

149,478 (23,218 ) - 0 - - 0 - 126,260

UBS AG

749,192 (111,957 ) - 0 - - 0 - 637,235

Total

$  5,067,211 $  (2,385,333 ) $  (470,000 ) $  - 0 - $  2,211,878 ^

Counterparty

Derivative
Liabilities
Subject to a
MA
Derivatives
Available
for Offset
Cash
Collateral
Pledged*
Security
Collateral
Pledged*
Net Amount
of Derivative
Liabilities

Bank of America NA

$ 3,290,200 $ (1,188,307 ) $ (520,000 ) $ - 0 - $ 1,581,893

Barclays Bank PLC

150,987 (150,987 ) - 0 - - 0 - - 0 -

BNP Paribas SA

1,081 (1,081 ) - 0 - - 0 - - 0 -

Brown Brothers Harriman & Co.

197,708 (62,034 ) - 0 - - 0 - 135,674

Citibank NA

785,271 (426,657 ) (150,000 ) - 0 - 208,614

Deutsche Bank AG

831,938 (46,917 ) - 0 - - 0 - 785,021

HSBC Bank USA

258,392 - 0 - - 0 - - 0 - 258,392

20 AB Sustainable International Thematic Fund

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NOTES TO FINANCIAL STATEMENTS (continued)

Counterparty

Derivative
Assets
Subject to a
MA
Derivatives
Available
for Offset
Cash
Collateral
Received*
Security
Collateral
Received*
Net Amount
of Derivative
Assets

JPMorgan Chase Bank NA

$ 285,855 $ (278,396 ) $ - 0 - $ - 0 - $ 7,459

Morgan Stanley Capital Services LLC

95,779 (95,779 ) - 0 - - 0 - - 0 -

Standard Chartered Bank

23,218 (23,218 ) - 0 - - 0 - - 0 -

UBS AG

111,957 (111,957 ) - 0 - - 0 - - 0 -

Total

$  6,032,386 $  (2,385,333 ) $  (670,000 ) $  - 0 - $  2,977,053 ^
*

The actual collateral received/pledged may be more than the amount reported due to overcollateralization.

^

Net amount represents the net receivable (payable) that would be due from/to the counterparty in the event of default or termination. The net amount from OTC financial derivative instruments can only be netted across transactions governed under the same master agreement with the same counterparty.

2. Currency Transactions

The Fund may invest in non-U.S.Dollar-denominated securities on a currency hedged or unhedged basis. The Fund may seek investment opportunities by taking long or short positions in currencies through the use of currency-related derivatives, including forward currency exchange contracts, futures and options on futures, swaps, and other options. The Fund may enter into transactions for investment opportunities when it anticipates that a foreign currency will appreciate or depreciate in value but securities denominated in that currency are not held by the Fund and do not present attractive investment opportunities. Such transactions may also be used when the Adviser believes that it may be more efficient than a direct investment in a foreign currency-denominated security. The Fund may also conduct currency exchange contracts on a spot basis (i.e., for cash at the spot rate prevailing in the currency exchange market for buying or selling currencies).

NOTE E

Capital Stock

Each class consists of 3,000,000,000 authorized shares. Transactions in capital shares for each class were as follows:

Shares Amount
Six Months Ended
December 31, 2025
(unaudited)
Year Ended
June 30,
2025
Six Months Ended
December 31, 2025
(unaudited)
Year Ended
June 30,
2025
Class A

Shares sold

62,594 142,413 $ 1,324,293 $ 2,788,094

Shares converted from Class C

4,612 9,185 97,828 179,488

Shares redeemed

(382,525 ) (917,393 ) (8,102,160 ) (18,166,253 )

Net decrease

(315,319 ) (765,795 ) $ (6,680,039 ) $ (15,198,671 )
ABFunds.com

AB Sustainable International Thematic Fund 21

NOTES TO FINANCIAL STATEMENTS (continued)

Shares Amount
Six Months Ended
December 31, 2025
(unaudited)
Year Ended
June 30,
2025
Six Months Ended
December 31, 2025
(unaudited)
Year Ended
June 30,
2025
Class C(a)

Shares sold

2,043 1,180 $ 44,499 $ 24,524

Shares converted to Class A

(4,430 ) (8,764 ) (97,828 ) (179,488 )

Shares redeemed

(3,248 ) (8,325 ) (71,668 ) (170,293 )

Net decrease

(5,635 ) (15,909 ) $ (124,997 ) $ (325,257 )
Advisor Class

Shares sold

1,903,345 5,490,295 $ 42,147,659 $ 112,767,931

Shares redeemed

(2,462,079 ) (10,641,182 ) (54,529,166 ) (219,395,915 )

Net decrease

(558,734 ) (5,150,887 ) $ (12,381,507 ) $ (106,627,984 )
Class I

Shares sold

1,558 3,589 $ 34,429 $ 73,284

Shares redeemed

(1,229 ) (11,644 ) (27,157 ) (240,217 )

Net increase (decrease)

329 (8,055 ) $ 7,272 $ (166,933 )
Class Z

Shares sold

73,098 205,417 $ 1,569,825 $ 4,093,928

Shares redeemed

(133,932 ) (352,586 ) (2,870,142 ) (7,241,668 )

Net decrease

(60,834 ) (147,169 ) $ (1,300,317 ) $ (3,147,740 )
(a)

Effective October 20, 2025, Class C share transactions have been adjusted to reflect a 1 for 1.2908 reverse share split.

NOTE F

Risks Involved in Investing in the Fund

Market Risk-The value of the Fund's assets will fluctuate as the market or markets in which the Fund invests fluctuate. The value of the Fund's investments may decline, sometimes rapidly and unpredictably, simply because of economic changes or other events, including public health crises (including the occurrence of a contagious disease or illness), terrorism, war, changing interest rate levels, the imposition of new or additional tariffs, and regional and global conflicts, that affect large portions of the market. It includes the risk that a particular style of investing may be underperforming the market generally.

Focused Portfolio Risk-Investments in a limited number of companies may have more risk because changes in the value of a single security may have a more significant effect, either negative or positive, on the Fund's net asset value, or NAV.

Sector Risk-The Fund may have more risk because it may invest to a significant extent in one or more particular market sectors, such as the information technology or financials sector. To the extent it does so, market or economic factors affecting the relevant sector(s) could have a major effect on the value of the Fund's investments.

22 AB Sustainable International Thematic Fund

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NOTES TO FINANCIAL STATEMENTS (continued)

ESG Risk-Applying ESG and sustainability criteria to the investment process may exclude securities of certain issuers for non-investmentreasons and, therefore, the Fund may forgo some market opportunities available to funds that do not use ESG or sustainability criteria. Securities of companies with ESG practices may shift into and out of favor depending on market and economic conditions, and the Fund's performance may at times be better or worse than the performance of funds that do not use ESG or sustainability criteria. Furthermore, ESG and sustainability criteria are not uniformly defined, and the Fund's ESG and sustainability criteria may differ from those used by other funds. In addition, in evaluating an investment, the Adviser is dependent upon information and data that may be incomplete, inaccurate or unavailable, which could adversely affect the analysis of the ESG and sustainability factors relevant to a particular investment.

Foreign (Non-U.S.)Risk-Investments in securities of non-U.S.issuers may involve more risk than those of U.S. issuers. These securities may fluctuate more widely in price and may be more difficult to trade due to adverse market, economic, political, regulatory or other factors.

Emerging Market Risk-Investments in emerging market countries may have more risk than investments in other foreign countries because the markets are less developed, less liquid and are subject to increased potential for market manipulation and increased economic, political, regulatory or other uncertainties.

Currency Risk-Fluctuations in currency exchange rates may negatively affect the value of the Fund's investments or reduce its returns.

Capitalization Risk-Investments in small- and mid-capitalizationcompanies may be more volatile than investments in large- capitalization companies. Investments in small-capitalization companies may have additional risks because these companies have limited product lines, markets or financial resources.

Derivatives Risk-Derivatives may be difficult to price or unwind and leveraged so that small changes may produce disproportionate losses for the Fund. A short position in a derivative instrument involves the risk of a theoretically unlimited increase in the value of the underlying asset, reference rate or index, which could cause the Fund to suffer a potentially unlimited loss. Derivatives, especially over-the-counterderivatives, are also subject to counterparty risk, which is the risk that the counterparty (the party on the other side of the transaction) on a derivative transaction will be unable or unwilling to honor its contractual obligations to the Fund.

Indemnification Risk-In the ordinary course of business, the Fund enters into contracts that contain a variety of indemnifications. The Fund's maximum exposure under these arrangements is unknown. However, the Fund has not

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AB Sustainable International Thematic Fund 23

NOTES TO FINANCIAL STATEMENTS (continued)

had prior claims or losses pursuant to these indemnification provisions and expects the risk of loss thereunder to be remote. Therefore, the Fund has not accrued any liability in connection with these indemnification provisions.

Management Risk-The Fund is subject to management risk because it is an actively-managed investment fund. The Adviser will apply its investment techniques and risk analyses in making investment decisions for the Fund, but there is no guarantee that its techniques will produce the intended results. Some of these techniques may incorporate, or rely upon, quantitative models, but there is no guarantee that these models will generate accurate forecasts, reduce risk or otherwise perform as expected.

NOTE G

Joint Credit Facility

A number of open-endmutual funds managed by the Adviser, including the Fund, participate in a $325 million revolving credit facility (the "Facility") intended to provide short-term financing related to redemptions and other short-term liquidity requirements, which will expire on June 23, 2026. A commitment fee of 0.15% per annum related to the Facility is paid by the participating funds and is included in miscellaneous expenses in the statement of operations. The Fund did not utilize the Facility during the six months ended December 31, 2025.

NOTE H

Distributions to Shareholders

The tax character of distributions paid for the year ending June 30, 2026 will be determined at the end of the current fiscal year. The tax character of distributions paid during the fiscal years ended June 30, 2025 and June 30, 2024 were as follows:

2025 2024

Distributions paid from:

Long-term capital gains

$  - 0 - $  - 0 -

Total taxable distributions paid

$  - 0 - $  - 0 -

As of June 30, 2025, the components of accumulated earnings (deficit) on a tax basis were as follows:

Accumulated capital losses

$ (13,324,245 )(a)

Other losses

(9,931,513 )(b)

Unrealized appreciation (depreciation)

210,888,670 (c)

Total accumulated earnings (deficit)

$  187,632,912
(a)

As of June 30, 2025, the Fund had a net capital loss carryforward of $13,324,245. During the fiscal year, the Fund utilized $27,447,413 of capital loss carry forwards to offset current year net realized gains.

(b)

As of June 30, 2025, the Fund had a qualified late-year ordinary loss deferral of $9,931,513.

(c)

The differences between book-basis and tax-basisunrealized appreciation (depreciation) are attributable primarily to the recognition for tax purposes of unrealized gains/losses on certain derivative instruments and the tax deferral of losses on wash sales.

24 AB Sustainable International Thematic Fund

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NOTES TO FINANCIAL STATEMENTS (continued)

For tax purposes, net realized capital losses may be carried over to offset future capital gains, if any. Funds are permitted to carry forward capital losses for an indefinite period, and such losses will retain their character as either short-term or long-term capital losses. As of June 30, 2025, the Fund had a net short-term capital loss carryforward of $5,992,177 and a net long-term capital loss carryforward of $7,332,068, which may be carried forward for an indefinite period.

NOTE I

Subsequent Events

Management has evaluated subsequent events for possible recognition or disclosure in the financial statements through the date the financial statements are issued. Management has determined that there are no material events that would require disclosure in the Fund's financial statements through this date.

ABFunds.com

AB Sustainable International Thematic Fund 25

FINANCIAL HIGHLIGHTS

Selected Data For A Share Of Capital Stock Outstanding Throughout Each Period

Class A

Six Months
Ended

December 31,
2025

(unaudited)

Year Ended June 30,
2025 2024 2023 2022 2021

Net asset value, beginning of period

$ 21.39 $ 19.16 $ 18.33 $ 16.46 $ 23.53 $ 17.76

Income From Investment Operations

Net investment income (loss)(a)(b)

.01 .13 * .13 .10 .09 (.03 )

Net realized and unrealized gain (loss) on investment and foreign currency transactions

.02 2.10 .70 1.86 (5.79 ) 6.18

Net increase (decrease) in net asset value from operations

.03 2.23 .83 1.96 (5.70 ) 6.15

Less: Distributions

Distributions from net realized gain on investment and foreign currency transactions

- 0 - - 0 - - 0 - (.09 ) (1.37 ) (.38 )

Net asset value, end of period

$ 21.42 $ 21.39 $ 19.16 $ 18.33 $ 16.46 $ 23.53

Total Return

Total investment return based on net asset value(c)**

.14 % 11.64 %* 4.53 % 11.92 % (25.82 )% 34.79 %

Ratios/Supplemental Data

Net assets, end of period (000's omitted)

$125,283 $131,852 $132,780 $142,303 $148,069 $215,976

Ratio to average net assets of:

Expenses, net of waivers/
reimbursements(d)

1.02 %(f) 1.03 % 1.03 % 1.05 % 1.03 % 1.19 %

Expenses, before waivers/
reimbursements(d)

1.03 %(f) 1.03 % 1.04 % 1.05 % 1.03 % 1.19 %

Net investment income (loss)(b)

.05 %(f) .68 %* .70 % .60 % .40 % (.14 )%

Portfolio turnover rate

37 % 48 % 36 % 31 % 28 % 33 %

  Expense ratios exclude the estimated acquired fund fees of affiliated/unaffiliated underlying

portfolios

.01 %(f) .01 % .01 % .01 % .00 % .01 %

See footnote summary on page 31.

26 AB Sustainable International Thematic Fund

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FINANCIAL HIGHLIGHTS (continued)

Selected Data For A Share Of Capital Stock Outstanding Throughout Each Period

Class C(g)

Six Months
Ended

December 31,
2025

(unaudited)

Year Ended June 30,
2025 2024 2023 2022 2021

Net asset value, beginning of period

$ 22.32 $ 20.15 $ 19.43 $ 17.59 $ 25.64 $ 19.56

Income From Investment Operations

Net investment loss(a)(b)

(.08 ) (.04 )* (.01 ) (.04 ) (.12 ) (.22 )

Net realized and unrealized gain (loss) on investment and foreign currency transactions

.03 2.21 .73 1.99 (6.16 ) 6.79

Net increase (decrease) in net asset value from operations

(.05 ) 2.17 .72 1.95 (6.28 ) 6.57

Less: Distributions

Distributions from net realized gain on investment and foreign currency transactions

- 0 - - 0 - - 0 - (.11 ) (1.77 ) (.49 )

Net asset value, end of period

$ 22.27 $ 22.32 $ 20.15 $ 19.43 $ 17.59 $ 25.64

Total Return

Total investment return based on net asset value(c)**

(.21 )% 10.76 %* 3.72 % 11.10 % (26.39 )% 33.77 %

Ratios/Supplemental Data

Net assets, end of period (000's omitted)

$386 $513 $783 $863 $1,115 $1,793

Ratio to average net assets of:

Expenses, net of waivers/
reimbursements(d)

1.79 %(f) 1.79 % 1.79 % 1.81 % 1.79 % 1.94 %

Expenses, before waivers/
reimbursements(d)

1.79 %(f) 1.79 % 1.80 % 1.82 % 1.79 % 1.95 %

Net investment loss(b)

(.72 )%(f) (.21 )%* (.07 )% (.23 )% (.38 )% (.93 )%

Portfolio turnover rate

37 % 48 % 36 % 31 % 28 % 33 %

  Expense ratios exclude the estimated acquired fund fees of affiliated/unaffiliated underlying

portfolios

.01 %(f) .01 % .01 % .01 % .00 % .01 %

See footnote summary on page 31.

ABFunds.com

AB Sustainable International Thematic Fund 27

FINANCIAL HIGHLIGHTS (continued)

Selected Data For A Share Of Capital Stock Outstanding Throughout Each Period

Advisor Class
Six Months
Ended
December 31,
2025
(unaudited)
Year Ended June 30,
2025 2024 2023 2022 2021

Net asset value, beginning of period

$ 22.34 $ 19.96 $ 19.05 $ 17.06 $ 24.28 $ 18.27

Income From Investment Operations

Net investment income(a)(b)

.03 .19 * .20 .16 .16 .05

Net realized and unrealized gain (loss) on investment and foreign currency transactions

.02 2.19 .71 1.92 (6.01 ) 6.34

Net increase (decrease) in net asset value from operations

.05 2.38 .91 2.08 (5.85 ) 6.39

Less: Distributions

Distributions from net realized gain on investment and foreign currency transactions

- 0 - - 0 - - 0 - (.09 ) (1.37 ) (.38 )

Net asset value, end of period

$ 22.39 $ 22.34 $ 19.96 $ 19.05 $ 17.06 $ 24.28

Total Return

Total investment return based on net asset value(c)**

.27 % 11.92 %* 4.78 % 12.21 % (25.64 )% 35.13 %

Ratios/Supplemental Data

Net assets, end of period (000's omitted)

$763,539 $773,998 $794,393 $630,120 $534,213 $567,611

Ratio to average net assets of:

Expenses, net of waivers/
reimbursements(d)

.77 %(f) .78 % .78 % .80 % .78 % .94 %

Expenses, before waivers/
reimbursements(d)

.78 %(f) .78 % .79 % .80 % .79 % .94 %

Net investment income(b)

.30 %(f) .91 %* 1.04 % .90 % .74 % .24 %

Portfolio turnover rate

37 % 48 % 36 % 31 % 28 % 33 %

  Expense ratios exclude the estimated acquired fund fees of affiliated/unaffiliated underlying

portfolios

.01 %(f) .01 % .01 % .01 % .00 % .01 %

See footnote summary on page 31.

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FINANCIAL HIGHLIGHTS (continued)

Selected Data For A Share Of Capital Stock Outstanding Throughout Each Period

Class I
Six Months
Ended
December 31,
2025
(unaudited)
Year Ended June 30,
2025 2024 2023 2022 2021

Net asset value, beginning of period

$ 22.17 $ 19.83 $ 18.94 $ 16.96 $ 24.17 $ 18.19

Income From Investment Operations

Net investment income (loss)(a)(b)

.03 .18 .17 .17 .12 (.01 )

Net realized and unrealized gain (loss) on investment and foreign currency transactions

.02 2.16 .72 1.90 (5.96 ) 6.37

Net increase (decrease) in net asset value from operations

.05 2.34 .89 2.07 (5.84 ) 6.36

Less: Distributions

Distributions from net realized gain on investment and foreign currency transactions

- 0 - - 0 - - 0 - (.09 ) (1.37 ) (.38 )

Net asset value, end of period

$ 22.22 $ 22.17 $ 19.83 $ 18.94 $ 16.96 $ 24.17

Total Return

Total investment return based on net asset value(c)**

.23 % 11.80 % 4.70 % 12.22 % (25.71 )% 35.12 %

Ratios/Supplemental Data

Net assets, end of period (000's omitted)

$901 $892 $957 $913 $565 $986

Ratio to average net assets of:

Expenses, net of waivers/
reimbursements(d)

.84 %(f) .84 % .85 % .83 % .84 % .98 %

Expenses, before waivers/
reimbursements(d)

.85 %(f) .84 % .85 % .84 % .84 % .99 %

Net investment income (loss)(b)

.24 %(f) .88 % .90 % .98 % .55 % (.03 )%

Portfolio turnover rate

37 % 48 % 36 % 31 % 28 % 33 %

  Expense ratios exclude the estimated acquired fund fees of affiliated/unaffiliated underlying

portfolios

.01 %(f) .01 % .01 % .01 % .00 % .01 %

See footnote summary on page 31.

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AB Sustainable International Thematic Fund 29

FINANCIAL HIGHLIGHTS (continued)

Selected Data For A Share Of Capital Stock Outstanding Throughout Each Period

Class Z

Six Months
Ended

December 31,
2025

(unaudited)

Year Ended June 30,

July 27,

2021(e) to

June 30,

2022

2025 2024 2023

Net asset value, beginning of period

$ 21.62 $ 19.32 $ 18.43 $ 16.50 $ 23.66

Income From Investment Operations

Net investment income(a)(b)

.03 .19 .18 .16 .30

Net realized and unrealized gain (loss) on investment and foreign currency transactions

.03 2.11 .71 1.86 (6.09 )

Net increase (decrease) in net asset value from operations

.06 2.30 .89 2.02 (5.79 )

Less: Distributions

Distributions from net realized gain on investment and foreign currency transactions

- 0 - - 0 - - 0 - (.09 ) (1.37 )

Net asset value, end of period

$ 21.68 $ 21.62 $ 19.32 $ 18.43 $ 16.50

Total Return

Total investment return based on net asset value(c)**

.28 % 11.91 % 4.83 % 12.26 % (26.06 )%

Ratios/Supplemental Data

Net assets, end of period (000's omitted)

$11,875 $13,158 $14,600 $14,894 $12,747

Ratio to average net assets of:

Expenses, net of waivers/
reimbursements(d)

.75 %(f) .76 % .76 % .77 % .77 %(f)

Expenses, before waivers/
reimbursements(d)

.76 %(f) .77 % .76 % .77 % .78 %(f)

Net investment income(b)

.32 %(f) .97 % 1.00 % .91 % 1.71 %(f)

Portfolio turnover rate

37 % 48 % 36 % 31 % 28 %

  Expense ratios exclude the estimated acquired fund fees of affiliated/unaffiliated underlying

portfolios

.01 %(f) .01 % .01 % .01 % .00 %(f)

See footnote summary on page 31.

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FINANCIAL HIGHLIGHTS (continued)

Selected Data For A Share Of Capital Stock Outstanding Throughout Each Period

(a)

Based on average shares outstanding.

(b)

Net of expenses waived/reimbursed by the Adviser.

(c)

Total investment return is calculated assuming an initial investment made at the net asset value at the beginning of the period, reinvestment of all dividends and distributions at net asset value during the period, and redemption on the last day of the period. Initial sales charges or contingent deferred sales charges are not reflected in the calculation of total investment return. Total investment return does not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. Total investment return calculated for a period of less than one year is not annualized.

(d)

In connection with the Fund's investments in affiliated underlying portfolios, the Fund incurs no direct expenses but bears proportionate shares of the acquired fund fees and expenses (i.e. operating, administrative and investment advisory fees) of the affiliated underlying portfolios. The Adviser has contractually agreed to waive its fees from the Fund in an amount equal to the Fund's pro rata share of certain acquired fund fees and expenses, and for the six months ended December 31, 2025 and the years ended June 30, 2025, June 30, 2024, June 30, 2023 and June 30, 2021 such waiver amounted to .01% (annualized), .01%, .01%, .01% and .01%, respectively.

(e)

Commencement of distribution.

(f)

Annualized.

(g)

Per share amounts have been adjusted to reflect the 1 for 1.2908 reverse share split effective October 20, 2025.

(h)

Amount is less than $.005.

(i)

Less than .005%.

*

During the year ended June 30, 2025, the Adviser reimbursed the Fund for overpayment of prior years' omnibus account services, sub-accountingservices and related transfer agency expenses. The impact of the reimbursement to the financial highlights is as follows:

Net Investment

Income Per

Share

Net Investment

Income Ratio

Total Return
Class A $  .00 (h) .02 % .00 %(i)
Class C $ .00 (h) .01 % .00 %(i)
Advisor Class $ .00 (h) .02 % .00 %(i)

** Includes the impact of proceeds received and credited to the Fund resulting from class action settlements, which enhanced the performance of each share class for the six months ended December 31, 2025 by .02%.

See notes to financial statements.

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AB Sustainable International Thematic Fund 31

Information Regarding the Review and Approval of the Fund's Advisory Agreement

The disinterested directors (the "directors") of AB Sustainable International Thematic Fund, Inc. (the "Fund") unanimously approved the continuance of the Fund's Advisory Agreement with the Adviser at a meeting held in-personon May 6-8,2025 (the "Meeting").

Prior to approval of the continuance of the Advisory Agreement, the directors had requested from the Adviser, and received and evaluated, extensive materials. They reviewed the proposed continuance of the Advisory Agreement with the Adviser and with experienced counsel who are independent of the Adviser, who advised on the relevant legal standards. The directors also reviewed additional materials, including comparative analytical data prepared by the Senior Vice President of the Fund. The directors also discussed the proposed continuance in private sessions with counsel.

The directors considered their knowledge of the nature and quality of the services provided by the Adviser to the Fund gained from their experience as directors or trustees of most of the registered investment companies advised by the Adviser, their overall confidence in the Adviser's integrity and competence they have gained from that experience, the Adviser's initiative in identifying and raising potential issues with the directors and its responsiveness, frankness and attention to concerns raised by the directors in the past, including the Adviser's willingness to consider and implement organizational and operational changes designed to improve investment results and the services provided to the AB Funds. The directors noted that they have four regular meetings each year, at each of which they review extensive materials and information from the Adviser, including information on the investment performance of the Fund and the money market fund advised by the Adviser in which the Fund invests a portion of its assets.

The directors also considered all factors they believed relevant, including the specific matters discussed below. During the course of their deliberations, the directors evaluated, among other things, the reasonableness of the advisory fee. The directors did not identify any particular information that was all-importantor controlling, and different directors may have attributed different weights to the various factors. The directors determined that the selection of the Adviser to manage the Fund and the overall arrangements between the Fund and the Adviser, as provided in the Advisory Agreement, including the advisory fee, were fair and reasonable in light of the services performed, expenses incurred and such other matters as the directors considered relevant in the exercise of their business judgment. The material factors and conclusions that formed the basis for the directors' determinations included the following:

Nature, Extent and Quality of Services Provided

The directors considered the scope and quality of services provided by the Adviser under the Advisory Agreement, including the quality of the investment

32 AB Sustainable International Thematic Fund

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research capabilities of the Adviser and the other resources it has dedicated to performing services for the Fund. The directors noted that the Adviser from time to time reviews the Fund's investment strategies and from time to time proposes changes intended to improve the Fund's relative or absolute performance for the directors' consideration. They also noted the professional experience and qualifications of the Fund's portfolio management team and other senior personnel of the Adviser. The directors also considered that the Advisory Agreement provides that the Fund will reimburse the Adviser for the cost to it of providing certain clerical, accounting, administrative and other services to the Fund by employees of the Adviser or its affiliates. Requests for these reimbursements are made on a quarterly basis and subject to approval by the directors. Reimbursements, to the extent requested and paid, result in a higher rate of total compensation from the Fund to the Adviser than the fee rate stated in the Advisory Agreement. The directors noted that the methodology used to determine the reimbursement amounts had been reviewed by an independent consultant at the request of the directors. The quality of administrative and other services, including the Adviser's role in coordinating the activities of the Fund's other service providers, also was considered. The directors concluded that, overall, they were satisfied with the nature, extent and quality of services provided to the Fund under the Advisory Agreement.

Costs of Services Provided and Profitability

The directors reviewed a schedule of the revenues and expenses and related notes indicating the profitability of the Fund to the Adviser for calendar years 2023 and 2024 that had been prepared with an expense allocation methodology arrived at in consultation with an independent consultant at the request of the directors. The directors noted the assumptions and methods of allocation used by the Adviser in preparing fund-specific profitability data and understood that there are a number of potentially acceptable allocation methodologies for information of this type. The directors noted that the profitability information reflected all revenues and expenses of the Adviser's relationship with the Fund, including those relating to its subsidiaries that provide transfer agency, distribution and brokerage services to the Fund. The directors recognized that it is difficult to make comparisons of the profitability of the Advisory Agreement with the profitability of fund advisory contracts for unaffiliated funds because comparative information is not generally publicly available and is affected by numerous factors. The directors focused on the profitability of the Adviser's relationship with the Fund before taxes and distribution expenses. The directors concluded that the Adviser's level of profitability from its relationship with the Fund was not unreasonable.

Fall-OutBenefits

The directors considered the other benefits to the Adviser and its affiliates from their relationships with the Fund and the money market fund advised by the Adviser in which the Fund invests, including, but not limited to, benefits relating to soft dollar arrangements (whereby investment advisers receive brokerage and research services from brokers that execute agency transactions for their

ABFunds.com

AB Sustainable International Thematic Fund 33

clients); 12b-1fees and sales charges received by the Fund's principal underwriter (which is a wholly owned subsidiary of the Adviser) in respect of certain classes of the Fund's shares; brokerage commissions paid by the Fund to brokers affiliated with the Adviser; and transfer agency fees paid by the Fund to a wholly owned subsidiary of the Adviser. The directors recognized that the Adviser's profitability would be somewhat lower without these benefits. The directors understood that the Adviser also might derive reputational and other benefits from its association with the Fund.

Investment Results

In addition to the information reviewed by the directors in connection with the Meeting, the directors have received detailed performance information for the Fund at each regular Board meeting during the year.

At the Meeting, the directors reviewed performance information prepared by an independent service provider (the "15(c) service provider"), showing the performance of the Advisor Class shares of the Fund against a group of similar funds ("peer group") and a larger group of similar funds ("peer universe"), each selected by the 15(c) service provider, and information prepared by the Adviser showing performance of the Advisor Class shares against a broad-based securities market index, in each case for the 1-, 3-, 5-and 10-yearperiods ended February 28, 2025 and (in the case of comparisons with the broad-based securities market index) for the period from inception. The directors discussed with the Adviser the reasons for the Fund's underperformance in the periods reviewed and determined to continue to monitor the Fund's performance closely.

Advisory Fees and Other Expenses

The directors considered the advisory fee rate payable by the Fund to the Adviser and information prepared by the 15(c) service provider concerning advisory fee rates payable by other funds in the same category as the Fund. The directors recognized that it is difficult to make comparisons of advisory fees because there are variations in the services that are included in the fees paid by other funds. The directors compared the Fund's contractual effective advisory fee rate with a peer group median and noted that it was lower than the median. They also noted that the Adviser's total rate of compensation, taking into account the administrative expense reimbursement paid to the Adviser in the latest fiscal year, was lower than the median.

The directors also considered the Adviser's fee schedule for other clients utilizing investment strategies similar to those of the Fund. For this purpose, they reviewed the relevant advisory fee information from the Adviser's Form ADV and in a report from the Fund's Senior Vice President and noted the differences between the Fund's fee schedule, on the one hand, and the Adviser's institutional fee schedule, on the other. The directors noted that the Adviser may, in some cases, agree to fee rates with large institutional clients that are lower than those reviewed by the directors and that they had previously discussed with the Adviser its policies in respect of such arrangements. The Adviser reviewed with

34 AB Sustainable International Thematic Fund

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the directors the significantly greater scope of the services it provides to the Fund relative to institutional clients. In this regard, the Adviser noted, among other things, that, compared to institutional accounts, the Fund (i) demands considerably more portfolio management, research and trading resources due to significantly higher daily cash flows; (ii) has more tax and regulatory restrictions and compliance obligations; (iii) must prepare and file or distribute regulatory and other communications about fund operations; and (iv) must provide shareholder servicing to retail investors. The Adviser also reviewed the greater legal risks presented by the large and changing population of Fund shareholders who may assert claims against the Adviser in individual or class actions, and the greater entrepreneurial risk in offering new fund products, which require substantial investment to launch, may not succeed, and generally must be priced to compete with larger, more established funds resulting in lack of profitability to the Adviser until a new fund achieves scale. In light of the substantial differences in services rendered by the Adviser to institutional clients as compared to the Fund, and the different risk profile, the directors considered these fee comparisons inapt and did not place significant weight on them in their deliberations.

In connection with their review of the Fund's advisory fee, the directors also considered the total expense ratio of the Advisor Class shares of the Fund in comparison to the medians for a peer group and a peer universe selected by the 15(c) service provider. The Advisor Class expense ratio of the Fund was based on the Fund's latest fiscal year. The Adviser had agreed to cap the Fund's expenses, but the directors noted that the Fund's expense ratio was currently below the level of the Adviser's cap. The directors noted that it was likely that the expense ratios of some of the other funds in the Fund's category were lowered by waivers or reimbursements by those funds' investment advisers, which in some cases might be voluntary or temporary. The directors view expense ratio information as relevant to their evaluation of the Adviser's services because the Adviser is responsible for coordinating services provided to the Fund by others. The directors noted that the Fund's expense ratio was lower than the medians. Based on their review, the directors concluded that the Fund's expense ratio was acceptable.

Economies of Scale

The directors noted that the advisory fee schedule for the Fund contains breakpoints that reduce the fee rates on assets above specified levels. The directors took into consideration prior presentations by an independent consultant on economies of scale in the mutual fund industry and for the AB Funds, and presentations from time to time by the Adviser concerning certain of its views on economies of scale. The directors also had requested and received from the Adviser certain updates on economies of scale in advance of the Meeting. The directors believe that economies of scale may be realized (if at all) by the Adviser across a variety of products and services, and not only in respect of a single fund. The directors noted that there is no established methodology for setting breakpoints that give effect to the fund-specific services provided by a fund's

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AB Sustainable International Thematic Fund 35

adviser and to the economies of scale that an adviser may realize in its overall mutual fund business or those components of it which directly or indirectly affect a fund's operations. The directors observed that in the mutual fund industry as a whole, as well as among funds similar to the Fund, there is no uniformity or pattern in the fees and asset levels at which breakpoints (if any) apply. The directors also noted that the advisory agreements for many funds do not have breakpoints at all. Having taken these factors into account, the directors concluded that the Fund's shareholders would benefit from a sharing of economies of scale in the event the Fund's net assets exceed a breakpoint in the future.

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AB SUSTAINABLE INTERNATIONAL THEMATIC FUND

66 Hudson Boulevard East

New York, NY 10001

800 221 5672

SIT-0152-1225    

ITEM 8. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS FOR OPEN-ENDMANAGEMENT INVESTMENT COMPANIES.

There were no disagreements with accountants during the reporting period.

ITEM 9. PROXY DISCLOSURES FOR OPEN-ENDMANAGEMENT INVESTMENT COMPANIES

There were no shareholder meetings during the reporting period.

ITEM 10. REMUNERATION PAID TO DIRECTORS, OFFICERS, AND OTHERS OF OPEN-ENDMANAGEMENT INVESTMENT COMPANIES.

Aggregate remuneration paid to all Directors and advisory board members are included within the Financial Statements under Item 7 of this Form N-CSR.

ITEM 11. STATEMENT REGARDING BASIS FOR APPROVAL OF INVESTMENT ADVISORY CONTRACT.

Statement regarding basis for Approval of Investment Advisory Contract included within the Financial Statements under Item 7 of this Form N-CSR.

ITEM 12. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-ENDMANAGEMENT INVESTMENT COMPANIES.

Not applicable to the registrant.

ITEM 13. PORTFOLIO MANAGERS OF CLOSED-ENDMANAGEMENT INVESTMENT COMPANIES

Not applicable to the registrant.

ITEM 14. PURCHASES OF EQUITY SECURITIES BY CLOSED-ENDMANAGEMENT INVESTMENT COMPANY AND AFFILIATED PURCHASERS.

Not applicable to the registrant

ITEM 15. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.

There have been no material changes to the procedures by which shareholders may recommend nominees to the Fund's Board of Directors since the Fund last provided disclosure in response to this item.

ITEM 16. CONTROLS AND PROCEDURES.

(a) The registrant's principal executive officer and principal financial officer have concluded that the registrant's disclosure controls and procedures (as defined in Rule 30a-2(c)under the Investment Company Act of 1940, as amended) are effective at the reasonable assurance level based on their evaluation of these controls and procedures as of a date within 90 days of the filing date of this document.

(b) There were no changes in the registrant's internal controls over financial reporting that occurred during the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting.

ITEM 17. DISCLOSURE OF SECURITIES LENDING ACTIVITIES FOR CLOSED-ENDMANAGEMENT INVESTMENT COMPANIES.

Not applicable to the registrant

ITEM 18. RECOVERY OF ERRONEOUSLY AWARDED COMPENSATION.

Not applicable to the registrant

ITEM 19. EXHIBITS.

The following exhibits are attached to this Form N-CSR:

EXHIBIT NO.

DESCRIPTION OF EXHIBIT

19(b)(1) Certification of Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
19(b)(2) Certification of Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
19(c) Certification of Principal Executive Officer and Principal Financial Officer Pursuant to Section 906 of the Sarbanes -Oxley Act of 2002

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

(Registrant): AB Sustainable International Thematic Fund, Inc.
By:

/s/ Onur Erzan

Onur Erzan
President
Date: February 26, 2026

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/ Onur Erzan

Onur Erzan
President
Date: February 26, 2026
By:

/s/ Stephen M. Woetzel

Stephen M. Woetzel
Treasurer and Chief Financial Officer
Date: February 26, 2026
AB Sustainable Internationalthematic Fund Inc. published this content on March 03, 2026, and is solely responsible for the information contained herein. Distributed via EDGAR on March 03, 2026 at 19:32 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]