6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

Pursuant to Rule 13a-16 or 15d-16

under the Securities Exchange Act of 1934

June 26, 2026

Commission File Number: 001-38159

BRITISH AMERICAN TOBACCO P.L.C.

(Translation of registrant’s name into English)

Globe House

4 Temple Place

London WC2R 2PG

United Kingdom

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒ Form 40-F ☐

This report includes materials as exhibits that have been published and made available by British American Tobacco p.l.c. as of  June 26, 2026.

EXHIBIT INDEX

SIGNATURES

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

Date: June 26, 2026

Exhibit 1

British American Tobacco p.l.c. (the “Company”)

26 June 2026

Share BuybackProgramme

Further to the share buyback programme announcement on 18 March 2024 (“the Programme”), and the subsequent extension of the Programme announced on 10 December 2025, the Company announces that it has entered into an irrevocable, non-discretionary agreement with UBS AG London Branch to purchase ordinary shares of the Company (“Shares”) during the closed period commencing on 30 June 2026 and ending at the close of business on 29 July 2026, the day prior to the release of its half year preliminary results.

UBS AG London Branch will make its trading decisions in relation to the Company’s Shares independently of, and uninfluenced by, the Company.

The purpose of the Programme is to reduce the share capital of the Company. The Shares repurchased will be cancelled.

Any purchases of Shares by the Company in relation to this announcement will be undertaken within certain pre-set parameters, and in accordance with the Company’s general authority to repurchase shares granted by its shareholders from time to time (at the Company’s 2026 AGM, shareholders granted the Company authority to purchase a maximum of 217,492,219 Shares (the “Authority”)), the Market Abuse Regulation 596/2014 and the Commission Delegated Regulation (2016/1052), in each case as such legislation forms part of domestic law by virtue of section 3 of the European Union (Withdrawal) Act 2018 (as amended), and Chapter 9.6 of the Financial Conduct Authority’s UK Listing Rules.

Pursuant to the Authority, the maximum price which may be paid for a Share is an amount (exclusive of taxes and expenses) equal to the higher of:

Enquiries:

InvestorRelations

Victoria Buxton:

| [email protected]

Exhibit 2

BritishAmerican Tobacco p.l.c.

Notificationand public disclosure of transactions by persons discharging managerial responsibilities and persons closely associated with them ****