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 December 2025

Commission File Number 001-41978

MIXED MARTIAL ARTS GROUP LIMITED

(Translation of registrant’s name into English)

Level 1, Suite 1, 29-33 The Corso

Manly, New South Wales 2095

+61 1800 151 865

(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:

MIXED MARTIAL ARTS GROUP LIMITED

EXPLANATORY NOTE

On December 29 2025, the Company issued a press release titled “MMA.INC Announces $3 Million Private Placement Led by American Ventures LLC with Donald Trump Jr Investing in the Offering”. A copy of the press release is furnished as Exhibit 99.1 hereto.

Exhibit Index

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.