FUN · Six Flags Entertainment Corporation/NEW

Six Flags Entertainment Corporation (NYSE: FUN) (the “Company”, “Six Flags”, or the “Combined Company”), the largest regional amusement park operator in North America, today announced results for its 2025 fourth quarter and full year ended Dec. 31, 2025. 2025 Fourth-Quarter Results Net revenues totaled $650 million, down $37 million or 5% compared with the fourth quarter of 2024 - on a per operating day basis, net revenues were up 7% compared with the fourth quarter of 2024. Attendance totaled 9.3 million guests, down 13% or approximately 1.4 million visitors compared with the fourth quarter of 2024 - on a per operating day basis attendance was down 2% compared with the fourth quarter of 2024. Per capita spending (2) was $66.41, up 8% compared with the fourth quarter of 2024. Net loss attributable to Six Flags Entertainment Corporation was $92 million compared with a loss of $264 million for the fourth quarter of 2024. Adjusted EBITDA (1) totaled $165 million compared with Adjusted

Six Flags Entertainment Corporation (NYSE: FUN) announced today a time change for its fourth quarter and full year 2025 earnings conference call. The conference call will take place two hours earlier than previously announced, now scheduled to start at 8:00 a.m. EST on Thursday Feb. 19, 2026. There is no change of timing for the release of the Company’s fourth quarter and full year 2025 financial results, scheduled for wire distribution in the pre-market hours the same day. Investors and all other interested parties can access a live, listen-only audio webcast of the call on the Six Flags investor website https://investors.sixflags.com under the tabs Investor Information / Events & Presentations. Those unable to listen to the live webcast can visit our investor website shortly after the call’s conclusion to access a recorded version of the call. ABOUT SIX FLAGS ENTERTAINMENT CORPORATION Six Flags Entertainment Corporation (NYSE: FUN) is North America’s largest regional

Six Flags Entertainment Corporation (NYSE: FUN), the largest regional amusement park operator in North America, said today it will issue 2025 fourth-quarter and full-year financial results in the pre-market hours of Thursday, Feb. 19, 2026. Starting at 8 a.m. EST that day, Six Flags management will host a conference call with the investment community to provide additional details regarding 2025 results and discuss the Company’s business outlook. Management participants on the call will include Six Flags CEO John Reilly and CFO Brian Witherow. Investors and all other interested parties can access a live, listen-only audio webcast of the call on the Six Flags investor website https://investors.sixflags.com under the tabs Investor Information / Events & Presentations. Those unable to listen to the live webcast can visit our investor website shortly after the call’s conclusion to access a recorded version of the call. ABOUT SIX FLAGS ENTERTAINMENT CORPORATION Six Flags Entertainment

Six Flags Entertainment Corporation (NYSE: FUN) (the “Company,” “Six Flags,” “we,” “us” or “our”), the largest regional amusement park operator in North America, today announced that the Company and its wholly-owned subsidiaries, Canada’s Wonderland Company (“Canada’s Wonderland”) and Millennium Operations LLC (“Millennium Operations” and, together with Canada’s Wonderland, the “Subsidiary Co-Issuers,” and, together with the Company, the “Co-Issuers”), have priced $1.0 billion in aggregate principal amount of 8.625% Senior Notes due 2032 (the “Notes”) at an offering price of 100% of the principal amount thereof. The Company anticipates that the closing of the offering of the Notes will take place on or about January 14, 2026, subject to customary closing conditions. The net proceeds from the Offering, together with cash on hand, will be used towards the full redemption (the “Redemptions”) of the Company’s 5.375% Senior Notes due April 15, 2027 and 5.500% Senior Notes due April 15,

Six Flags Entertainment Corporation (NYSE: FUN) (the “Company,” “Six Flags,” “we,” “us” or “our”), the largest regional amusement park operator in North America, today announced that the Company and its wholly-owned subsidiaries, Canada’s Wonderland Company (“Canada’s Wonderland”) and Millennium Operations LLC (“Millennium Operations” and, together with Canada’s Wonderland, the “Subsidiary Co-Issuers,” and, together with the Company, the “Co-Issuers”), intend to offer, subject to market conditions and other factors, $1.0 billion in aggregate principal amount of Senior Notes due 2032 (the “Notes”) in a private offering (the “Offering”) to persons reasonably believed to be qualified institutional buyers pursuant to Rule 144A under the Securities Act of 1933, as amended (the “Securities Act”), and to non-U.S. persons outside the United States in accordance with Regulation S under the Securities Act. The Company intends to apply the net proceeds from the Offering, together with cash on

Six Flags Entertainment Corporation (NYSE: FUN) (the “Company” or “Six Flags”), the largest regional amusement park operator in North America, today announced it will not exercise its contractual call option to acquire the remaining non‑controlling partner interests in Six Flags Over Texas, located in Arlington, Texas, as provided under the existing partnership agreement governing the park. Under the terms of the agreement, Six Flags was required to notify the partnership no later than December 31, 2025, regarding its intent to exercise the option, which would have resulted in a payment due in January 2028. After careful consideration, the Company has determined it is currently not in its best interest to exercise the call option. “After careful consideration of the terms of the partnership agreement and the strategic objectives of the Company, we have determined not to exercise the call option with respect to Six Flags Over Texas,” said John Reilly, president and CEO of Six Flags.