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

For the month of October 2025

Commission File Number: 001-42370

MEGA MATRIX INC.

Level 21, 88 Market Street 

CapitaSpring 

Singapore 048948 

(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 ☐

Stepping Down of Mr. Hu as Chairman

On October 27, 2025, Mr. Yucheng Hu notified the Board of Directors (the “Board”) of Mega Matrix Inc. (the “Company”) of his decision to step down as Chairman of the Board, while continuing to serve as an executive director and the Chief Executive Officer of the Company.

Appointment of Additional Director and Chairman

On October 27, 2025, the Board appointed Mr. Yaman Demir to serve as Chairman of the Board.

Incorporation by Reference

This report shall be deemed to be incorporated by reference in the registration statements on Form S-8 (File No. 333-277227), Form F-3 (File No. 333-283739), Form S-8 (File No. 333-289715), and Form F-3 (File No. 333-290026), each as filed with the Securities and Exchange Commission, to the extent not superseded by documents or reports subsequently filed.

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.

2