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Six Flags Entertainment Corp ownership update: The Vanguard Group filed an Amendment No. 11 to its Schedule 13G/A stating it beneficially owns 0 shares of common stock, representing 0% of the class. The filing explains an internal realignment effective January 12, 2026 under SEC Release No. 34-39538, after which certain Vanguard subsidiaries report ownership separately. The form is signed by Ashley Grim, Head of Global Fund Administration, dated 03/27/2026.
Six Flags Entertainment Corporation has appointed Richard “Dick” Haddrill as Executive Chair of the Board, effective immediately, and named Marilyn Spiegel as Lead Independent Director. The Board will temporarily expand to 11 members until the 2026 Annual Meeting of Stockholders.
Haddrill signed a three-year employment agreement with a base salary of $500,000 per year217,797 restricted stock awards that vest quarterly over three years and 373,367 performance stock units that vest based on specified performance targets. The agreement includes severance, vesting, change-in-control and clawback provisions tied to termination scenarios, as well as non-solicitation, confidentiality and non-disparagement covenants.
Six Flags Entertainment Corporation reported that board member Jennifer Mason has informed the company she will not stand for re-election when her term expires at the 2026 annual meeting of stockholders. The company states that her decision is not due to any disagreement with the Board, the company, or management regarding operations, policies, or practices.
The Board and the company expressed their appreciation for Ms. Mason’s dedicated service as a director. This represents a planned transition in board composition rather than a dispute-driven departure.
Six Flags Entertainment Corporation has signed definitive agreements to divest seven parks to EPR Properties for total cash consideration of $331 million, subject to customary adjustments. An 8-K details an Equity Purchase Agreement under which EPR and an operator will acquire subsidiaries holding assets and liabilities for several U.S. parks for $318,885,000 in cash.
The parks generated about $260 million in net revenue and approximately $45 million in Adjusted EBITDA for the year ended December 31, 2025, serving roughly 4.5 million guests. Six Flags plans to use net proceeds, after taxes and transaction expenses, to pay down debt and modestly improve its leverage ratio while focusing on its remaining 34 parks across 23 North American locations.
Six Flags Entertainment Corporation, now the combined company of Former Six Flags and Cedar Fair, uses this annual report to describe a transformed, highly leveraged regional park operator following a 2024 merger of equals. Cedar Fair is the accounting acquirer, so historical results largely reflect its operations until mid‑2024.
The company now runs 41 amusement and water parks and nine resort properties across North America, with about 70% of 2025 attendance and revenue concentrated in the second and third quarters. Management highlights significant risks from merger integration, a high fixed‑cost base, extreme weather and climate impacts, cybersecurity, and $5.2 billion of debt as of December 31, 2025. The workforce included about 4,225 full‑time employees at year‑end 2025, roughly 15% fewer than a year earlier due to post‑merger efficiency efforts, plus about 91,000 seasonal and part‑time employees.
Six Flags Entertainment Corporation/NEW Chief Financial Officer Brian C. Witherow reported a Form 4 showing shares withheld to cover taxes on equity compensation. On February 23, 2026, 16,469 shares of common stock were disposed of at $18.24 per share as a tax-withholding disposition tied to the vesting of previously granted restricted stock and restricted stock units. After this transaction, he directly held 297,765 common shares, and an additional 2,399 shares were held indirectly by his spouse.
Six Flags Entertainment Corporation/NEW executive Tayfun Tastepe reported a routine tax-related share disposition. On February 23, 2026, 3,639 common shares were withheld to cover tax liabilities tied to vesting restricted stock and restricted stock units. After this withholding, he directly holds 29,662 common shares.
Six Flags Entertainment Corporation/NEW Chief Accounting Officer David R. Hoffman reported a tax-related share disposition. On February 23, 2026, 4,788 shares of common stock were withheld at $18.24 per share to cover tax liabilities from previously granted restricted stock and restricted stock units that vested that day. After this withholding, Hoffman directly owned 86,178 shares.
Six Flags Entertainment Corporation/NEW Chief Legal Officer Brian Nurse reported a tax-withholding share disposition. On February 23, 2026, 11,246 shares of common stock were withheld at $18.24 per share to cover tax liabilities tied to previously reported restricted stock and restricted stock units that vested that day. After this transaction, he directly owned 79,092 shares of common stock.
Six Flags Entertainment Corporation's Chief Operating Officer Tim Fisher reported a tax-related share disposition. On February 23, 2026, 19,092 shares of common stock were withheld at $18.24 per share to cover tax liabilities from previously granted restricted stock and restricted stock units that vested the same day. After this withholding, Fisher directly owned 222,242 shares. This was not an open-market sale but an automatic share withholding tied to equity award vesting.