TKO Group Holdings, Inc.

(a) Disclosure in lieu of reporting on a Current Report on Form 8-K.

On August 1, 2025, the Company and Andrew Schleimer, our Chief Financial Officer, entered into an amendment to Mr. Schleimer’s Term Employment Agreement, dated as of November 5, 2023, to provide that he may also serve as Chief Financial Officer at Endeavor Group Holdings, Inc. or in other related roles at Endeavor Group Holdings, Inc. or its other subsidiaries. For the avoidance of doubt, Mr. Schleimer continues to serve in his existing role as the Company’s Chief Financial Officer.

(b) Material changes to the procedures by which security holders may recommend nominees to the board of directors.

None.

(c)Insider trading arrangements and policies.

Other than the below, during the three months ended June 30, 2025, no director or "officer" (as defined under 16a-1(f) of the Exchange Act) of the Company adopted orterminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as each term is defined in Item 408(a) of Regulation S-K.

On March 7, 2025, Mr. Kapral, our Deputy Chief Financial Officer and principal accounting officer, entered into a Rule 10b5-1 trading arrangement intended to satisfy the affirmative defense of Rule 10b5-1(c) (the “2025 Kapral Trading Arrangement”).The 2025 Kapral Trading Arrangement provides for the sale of up to 10,595 shares of Class A common stock with a planend date of March 15, 2026.