Form DSTRBRPT INTERNATIONAL BANK FOR

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

100 F Street, N.E.

Washington, D.C. 20549

REPORT OF

INTERNATIONAL BANK FOR RECONSTRUCTION AND DEVELOPMENT

In respect of its

U.S. Dollar 5,000,000,000 4.875 per cent. Notes due October 27, 2031

Filed pursuant to Rule 3 of Regulation BW

Dated: October 27, 2026

The following information regarding the U.S. Dollar 5,000,000,000 4.875 per cent. Notes due October 27, 2031 (the “Notes”) of the International Bank for Reconstruction and Development is being filed pursuant to Rule 3 of Regulation BW. As authorized by Rule 4 of Regulation BW, certain information is provided in the form of a Prospectus (the “Prospectus”) for the Bank’s Global Debt Issuance Facility (the “Facility”), the most recent version of which (dated September 24, 2021) is already on file with the Securities and Exchange Commission and in the form of an Information Statement (the “Information Statement”), the most recent version of which (dated September 23, 2026) is already on file with the Securities and Exchange Commission.

Item 1. Description of Obligations

(a) U.S. Dollar 5,000,000,000 4.875 per cent. Notes due October 27, 2031.

(b) The interest rate per U.S. Dollar 1,000 (the “Specified Denomination”) shall be 4.875 per cent. per annum, payable semi-annually in arrear on each April 27 and October 27, commencing April 27, 2027, and ending on October 27, 2031.

(c) Maturing October 27, 2031. The maturity of the Notes may be accelerated if the Bank shall default in the payment of the principal of, or interest on, or in the performance of any covenant in respect of a purchase fund or a sinking fund for any bonds, notes (including the Notes) or similar obligations which have been issued, assumed or guaranteed by the Bank, such default shall continue for a period of 90 days, a holder notifies the Bank that it elects to declare the principal of Notes held by it to be due and payable, and all such defaults have not been cured by 30 days after such notice has been delivered. Any such notice shall be accompanied by appropriate proof that the notifying party is a Noteholder.

(d) Not Applicable.

(e) Bank’s standard negative pledge clause (see Condition 4 on page 21 of the Prospectus).

(f) Not Applicable.

(g) No provisions have been made for the amendment or modification of the terms of the obligations by the holders thereof or otherwise.

(h) See Prospectus, pages 6-11.

(i) Federal Reserve Bank of New York, 33 Liberty Street, New York, New York 10045.

Item 2. Distribution of Obligations

As of October 22, 2026, the Bank entered into a Terms Agreement with Banco Santander, S.A., Barclays Bank PLC, BMO Capital Markets Corp., BNP Paribas, CastleOak Securities, L.P., CIBC World Markets Corp., Citigroup Global Markets Limited, Crédit Agricole Corporate and Investment Bank, Daiwa Capital Markets Europe Limited, Deutsche Bank AG, London Branch, Goldman Sachs International, HSBC Bank plc, J.P. Morgan Securities plc, Merrill Lynch International, Morgan Stanley & Co. International plc, National Bank of Canada Financial Inc., Nomura International plc, The Bank of Nova Scotia, London Branch, RBC Capital Markets, LLC, The Toronto-Dominion Bank, UBS AG London Branch and Wells Fargo Securities, LLC (collectively, the “Managers”), pursuant to which the Bank agreed to issue, and the Managers agreed to purchase, a principal amount of the Notes aggregatingUSD 5,000,000,000 at 99.566% of par. The Notes will be offered for sale subject to issuance and acceptance by the Managers and subject to prior sale. Delivery of the Notes is expected to be made on or about October 27, 2026.

The Terms Agreement provides that the obligations of the Managers are subject to certain conditions, including the continued accuracy of the Bank’s representations and warranties set forth in the Bank’s Standard Provisions relating to the issuance of notes under the Global Debt Issuance Facility (the “Standard Provisions”), the most recent version of which (dated as of September 24, 2021) is already on file with the Securities and Exchange Commission.

Item 3. Distribution Spread

Item 4. Discounts and Commissions to Sub-Underwriters and Dealers

None

Item 5. Other Expenses of Distribution

As the Notes are offered as part of a continuous series of borrowings under the Facility, precise expense amounts for this transaction are not yet known.

Item 6. Application of Proceeds

The net proceeds will be used in the general operations of the Bank.

Item 7. Exhibits

EXECUTION VERSION

Final Terms dated October 22, 2026

International Bank for Reconstruction and Development

Issue of

US$5,000,000,000 4.875 per cent. Notes due October 27, 2031

under the

Global Debt Issuance Facility

Terms used herein shall be deemed to be defined as such for the purposes of the terms and conditions (the “Conditions”) set forth in the Prospectus dated September 24, 2021. This document constitutes the Final Terms of the Notes described herein and must be read in conjunction with such Prospectus.

UK MiFIR product governance / Retail investors, professional investors and ECPs target market – See Term 28 below.

GENERAL INFORMATION

IBRD’s most recent Information Statement was issued on September 23, 2026.

SUPPLEMENTAL PROSPECTUS INFORMATION

The Prospectus is hereby supplemented with the following information, which shall be deemed to be incorporated in, and to form part of, the Prospectus.

The Managers are represented by Sullivan & Cromwell LLP. From time to time Sullivan & Cromwell LLP performs legal services for IBRD.

LISTING APPLICATION

These Final Terms comprise the final terms required for the admission to the Official List of the Luxembourg Stock Exchange and to trading on the Luxembourg Stock Exchange’s regulated market of the Notes described herein issued pursuant to the Global Debt Issuance Facility of International Bank for Reconstruction and Development.

RESPONSIBILITY

IBRD accepts responsibility for the information contained in these Final Terms.

Signed on behalf of IBRD:

EXECUTION VERSION

TERMS AGREEMENT NO. 102955 UNDER THE FACILITY

October 22, 2026

International Bank for Reconstruction

and Development

1818 H Street, N.W.

Washington, D.C. 20433

The undersigned (the “Dealers”) agree to purchase from you (the “Bank”) the Bank’s US$5,000,000,000 4.875 per cent. Notes due October 27, 2031 (the “Notes”) described in the Final Terms, dated as of the date hereof (the “Final Terms”) at 11:00 a.m. New York time on October 27, 2026 (the “Settlement Date”) at an aggregate purchase price of US$4,972,050,000 (which is 99.441 per cent. of the aggregate nominal amount of the Notes) on the terms set forth herein and in the Standard Provisions, dated September 24, 2021, relating to the issuance of Notes by the Bank (the “Standard Provisions”), incorporated herein by reference. In so purchasing the Notes, each of the Dealers understands and agrees that it is not acting as an agent of the Bank in the sale of the Notes.

When used herein and in the Standard Provisions as so incorporated, the term “Notes” refers to the Notes as defined herein and the term “Time of Sale” refers to October 20, 2026, 11:02 a.m. New York time. The Uniform Fiscal Agency Agreement, dated as of July 20, 2006, as amended and supplemented from time to time, between the Bank and the Federal Reserve Bank of New York, as fiscal and paying agent, has been superseded by the Uniform Fiscal Agency Agreement, dated as of May 19, 2025 (the “New Fiscal Agency Agreement”), as may be amended, restated, superseded or otherwise modified from time to time, between the Bank and the 12 Federal Reserve Banks. When used herein and in the Standard Provisions as so incorporated, the term “Fed Fiscal Agency Agreement” refers to the New Fiscal Agency Agreement. All other terms defined in the Prospectus, the Final Terms relating to the Notes and the Standard Provisions shall have the same meaning when used herein.

The Bank represents and warrants to the Dealers that the representations, warranties and agreements of the Bank set forth in Section 2 of the Standard Provisions (with the “Prospectus” revised to read the “Prospectus as amended and supplemented with respect to Notes at the date hereof”) are true and correct on the date hereof.

The obligation of each of the Dealers to purchase Notes hereunder is subject to the continued accuracy, on each date from the date hereof to and including the Settlement Date, of the Bank’s representations and warranties contained in the Standard Provisions and to the Bank’s performance and observance of all applicable covenants and agreements

contained therein. The obligation of the Dealers to purchase Notes hereunder is further subject to the receipt by the Dealers of (i) a letter from each of Sullivan & Cromwell LLP and Deloitte & Touche LLP addressed to the Dealers and giving the Dealers the full benefit of the existing validity opinion or accountants’ letter of such firm as of the date of such existing validity opinion or accountants’ letter; and (ii) a disclosure letter from Sullivan & Cromwell LLP in respect of the Prospectus.

Subject to Section 5.6 of the Standard Provisions, the Bank certifies to each of the Dealers that, as of the Settlement Date, (i) the representations and warranties of the Bank contained in the Standard Provisions are true and correct as though made at and as of the Settlement Date, (ii) the Bank has performed all of its obligations under this Terms Agreement required to be performed or satisfied on or prior to the Settlement Date, and (iii) the Prospectus contains all material information relating to the assets and liabilities, financial position, and profits and losses of the Bank, and nothing has happened or is expected to happen which would require the Prospectus to be supplemented or updated.

The respective nominal amounts of the Notes that each of the Dealers commits to underwrite are set forth opposite their names below:

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For purposes hereof, the notice details of the Dealers are as follows:

c/o Nomura International plc

1 Angel Lane

London EC4R 3AB

United Kingdom

Attention: Fixed Income Syndicate

Telephone: +44(0) 20 7103 9026

Email: [email protected]

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For the purposes of this provision, the expression “UK MiFIR” means Regulation (EU) No 600/2014 as it forms part of domestic law by virtue of the European Union (Withdrawal) Act 2018.

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This Terms Agreement may be executed by any one or more of the parties hereto in any number of counterparts, each of which shall be deemed to be an original, but all such respective counterparts together shall constitute one and the same instrument.

MORGAN STANLEY & CO. INTERNATIONAL PLC

(together with Citigroup Global Markets Limited, Morgan Stanley & Co. International plc and Nomura International plc, the “Joint Lead Managers”)

BNP PARIBAS

CRÉDIT AGRICOLE CORPORATE AND INVESTMENT BANK