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 OF THE

SECURITIES EXCHANGE ACT OF 1934

For the month of June 2025

Commission File Number 001-37652

Biodexa Pharmaceuticals PLC

(Translation of registrant’s name into English)

1 Caspian Point,

Caspian Way

Cardiff, CF10 4DQ, United Kingdom

(Address of principal executive offices)

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 x      Form 40-F ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ¨

Explanatory Note

As previously disclosed, on June 11, 2025, at a general meeting of Biodexa Pharmaceutical PLC (the “Company”) shareholders, the shareholders approved new Articles of Association of the Company (the “New Articles”). The New Articles implemented the change in nominal value of the Company’s ordinary shares, from £0.00005 per share to £0.000001 per share, that was also approved at the meeting. A copy of the New Articles is attached hereto as Exhibit 1.1 and incorporated herein by reference.

The information included in this report on Form 6-K, including Exhibit 1.1, shall be deemed to be incorporated by reference into the registration statements on Form S-8 (File No. 333-209365) and Form F-3 (File No. 333-267932) of the Company (including any prospectuses forming a part of such registration statements) and to be a part thereof from the date on which this report is filed, to the extent not superseded by documents or reports subsequently filed or furnished.

SUBMITTED HEREWITH

Attached to the Registrant’s Form 6-K filing for the month of June 2025 is:

SIGNATURE

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.

ATTACHMENTS / EXHIBITS

EXHIBIT 1.1