6-K

UNITEDSTATES

SECURITIESAND EXCHANGE COMMISSION

Washington,D.C. 20549

FORM6-K

REPORTOF FOREIGN PRIVATE ISSUER

PURSUANTTO RULE 13a-16 OR 15d-16 UNDER THE

SECURITIESEXCHANGE ACT OF 1934

Forthe month of December 2025

CommissionFile Number: 001-41639

SMX(SECURITY MATTERS) PUBLIC LIMITED COMPANY

(ExactName of Registrant as Specified in Charter)

MespilBusiness Centre, Mespil House

SussexRoad, Dublin 4, Ireland

Tel:+353-1-920-1000

(Address of Principal Executive Offices) (Zip Code)

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 ☐

An Annual General Meeting of Shareholders (the “Meeting”) of SMX (Security Matters) Public Limited Company (the “Company”), originally scheduled for Monday, November 24, 2025 but adjourned to Monday, December 1, 2025 was held on December 1, 2025 at 10:00 a.m. (Eastern time) and 3:00 p.m. (Irish time), at Arthur Cox, Ten Earlsfort Terrace, Dublin 2, D02 T380, Ireland. At the Meeting, the Company’s shareholders voted on the following proposals and cast their votes as described below. The proposals are described in more detail in the Company’s Notice and Proxy Statement with respect to the Meeting, attached as Exhibit 99.1 to the Company’s Report on Form 6-K filed with the U.S. Securities and Exchange Commission on October 31, 2025 (the “Proxy Statement”).

Proposal 1: Appointment of Director – To re-elect Haggai Alon as a Director for a three-year term, who retires by rotation in accordance with Regulation 160 of the constitution of the Company and, being eligible, offers himself for re-election.

Proposal 2: Appointment of Director – To re-elect Ophir Sternberg as a Director for three-year term, who retires by rotation in accordance with Regulation 160 of the constitution of the Company and, being eligible, offers himself for re-election.

Proposal 3: Appointment of Auditor — To re-appoint BDO Israel as statutory auditor of the Company.

Proposal 4: Remuneration of Auditor — To approve and ratify the remuneration of the statutory auditors fixed by the Directors for the year ending 31 December 2025.

Proposal 5: New Deferred Ordinary Shares Cancellation Proposal — To approve the cancellation of 7,999,999,999,999,982,413,677 New Deferred Ordinary Shares with a nominal value of US$0.00000000000001 each, and to diminish the authorized share capital accordingly.

Proposal 6: Authority to Allot Shares — To authorize the Directors to allot and issue shares up to the authorized but unissued share capital following the New Deferred Ordinary Shares Cancellation, valid until 21 November 2030.

Proposal 7: Disapplication of Pre-emption Rights — Conditional on Resolution 6, as a special resolution, to empower the Directors to issue shares for cash without applying statutory pre-emption rights, valid until 21 November 2030.

Proposal 8: Constitutional Amendment — Removing References to New Deferred Ordinary Shares — To amend the Constitution to remove all references to New Deferred Ordinary Shares and update relevant clauses and articles accordingly.

Proposal 9: Constitutional Amendment – Authorizing Directors to Subdivide the Company’s Shares — To insert a new article authorizing the Directors to subdivide any class of the Company’s shares as they see fit.

Proposal 10: Constitutional Amendment — Authorizing Directors to Increase the Nominal Value of the Company’s Shares — To insert a new article authorizing the Directors to increase the nominal value of the Company’s shares by adding undenominated capital.

Proposal 11: Constitutional Amendment — To insert a new article authorizing the Directors to reduce the nominal value of the Company’s shares by crediting the deduction to undenominated capital.

Proposal 12: Constitutional Amendment — To insert a new article authorizing the Directors to convert undenominated capital into shares for allotment as bonus shares.

Proposal 13: Constitutional Amendment — To insert a new article authorizing the Directors to increase the share capital of the Company by new shares as they see fit.

Proposal 14: Constitutional Amendment — To insert a new article authorizing the Directors to cancel shares not taken or agreed to be taken and to diminish the share capital accordingly.

Proposal 15: Constitutional Amendment — To amend the Constitution to provide that two members present in person or by proxy constitute a quorum at a general meeting, or one member if the Company is a single-member company.

Proposal 16: Adoption of Amended Constitution Reflecting Resolutions 8–15— Conditional on the passing of Resolutions 8–15, to adopt the Amended and Restated Constitution as the new Constitution of the Company, and to authorize the Directors to take all necessary actions to give effect to this resolution.

There were 347,442 ordinary shares voted at the Meeting. Accordingly, as the Company has received a majority of the votes cast at the Meeting, in accordance with Ireland law, all of the above Proposals passed.

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: December 3, 2025