Material Event (Form 8-K)

Item 8.01. Other Events.

Six Flags Theme Parks, a wholly-owned subsidiary of Six Flags Entertainment Corporation (the "Company"), is party to the Overall Agreement, dated as of November 24, 1997 (the "Overall Agreement"), and related agreements governing the Company's interest in the Six Flags Over Texas amusement park located in Arlington, Texas ("SFOT"). The Company's obligations with respect to the partnership that holds SFOT (the "Texas Partnership") continue to January 2028, at which time the Company may, at its option (the "End-of-TermOption"), require the redemption of all outstanding limited partner interests in the Texas Partnership not already owned by affiliates of the Company. Notice of the intent to exercise such End-of-TermOption was required to be given to the Texas Partnership no later than December 31, 2025.

After careful consideration of the terms of the Overall Agreement and the current business and strategic objectives of the Company, the Company has determined it is currently not in its best interest to exercise the End-of-TermOption with respect to the Texas Partnership. The Company is evaluating potential options and alternatives available under the Overall Agreement. The Company is committed to working collaboratively with the other parties to the Overall Agreement and the limited partners of the Texas Partnership.

The Company will continue to operate and manage SFOT pursuant to the existing partnership agreement. The Company has continued to invest in the park through capital improvements, new attractions, and enhancements to the guest experience, underscoring its confidence in the park's long-term growth and strategic importance to the Company's portfolio.