Every material Form 8-K Six Flags has filed with the SEC since December 23, 2025, read and summarized by AI: what happened, the key figures, whether it reads positive or negative for shareholders, and how big a deal it is (impact 1-5). Newest first; each brief links to its own page and to the filing on SEC.gov.
Six Flags reported third-quarter 2026 net revenues of $1.17 billion, down 11.0% on a reported basis but up 1.4% on a same-park basis, and a net loss of $366.1 million, or $3.59 per diluted share, including $687.7 million of non-cash impairment charges. The company now expects fourth-quarter 2026 same-park Adjusted EBITDA of $140 million to $150 million, compared with $167 million in the prior-year fourth quarter, after a softer October tied to weather and a ride-safety incident at Six Flags Over Georgia.
Q3 2026 net loss attributable to Six Flags was $366.1 million, or $3.59 per diluted share, versus a $1.19 billion loss in Q3 2025
Same-park Adjusted EBITDA rose 1.1% to $493.2 million in Q3; same-park attendance fell 0.2% to 18.2 million
Q4 2026 same-park Adjusted EBITDA guidance is $140 million to $150 million, versus $167 million in Q4 2025
2026 capital expenditure expectation lowered to $350.0 million to $375.0 million from $400.0 million to $425.0 million
Six Flags reported second-quarter 2026 results for the three months ended June 28, 2026. On a same-park basis, net revenues rose 2.4% to $864 million and Adjusted EBITDA rose 7% to $249 million, while the reported net loss attributable to the company widened to $203 million from $100 million, and reported revenue fell 7% to $865 million because of parks sold or closed.
Same-park attendance rose 4% to 13.1 million visits; reported attendance fell 7% from 14.2 million.
Reported net loss attributable to Six Flags was $203 million, compared with $100 million in the second quarter of 2025.
Same-park Adjusted EBITDA was $249 million, up $16 million from $233 million; reported Adjusted EBITDA was $243 million in both periods.
As of June 28, 2026, total debt was $5.0 billion and net debt was $4.9 billion; total liquidity was $837 million.
Six Flags said Mark Pauls will become chief operating officer effective July 15, 2026, replacing Tim Fisher, who stays on as Special Advisor to the CEO through December 15, 2026. Pauls's employment agreement sets a $600,000 base salary, a 90% target incentive and a target equity grant of $1,560,000, and the filing does not report any financial results.
Mark Pauls becomes COO effective July 15, 2026; Tim Fisher's COO role ends on that date
Pauls's agreement provides a $600,000 base salary, a 90% target annual incentive and a $39,000 one-time signing bonus
Target equity grant of $1,560,000 in restricted stock units under the 2024 Omnibus Incentive Plan
Fisher remains as Special Advisor to the CEO through December 15, 2026
On June 25, 2026, Six Flags amended the employment agreement of Chief Operating Officer Tim Fisher. The amendment sets the agreement's term to expire on December 15, 2026, and extends certain benefits through that date to retain him. Mr. Fisher agreed not to receive a 2026 annual equity grant or retention bonus under the agreement.
Amendment entered into June 25, 2026, covering the employment agreement of COO Tim Fisher
Agreement term will expire December 15, 2026
Certain benefits extended through December 15, 2026 to retain Mr. Fisher
Mr. Fisher will not receive a 2026 annual equity grant or retention bonus payment under the agreement
Six Flags Entertainment Corporation said it appointed Ash Walia as Chief Financial Officer, effective June 17, 2026, succeeding interim CFO Dave Hoffman, who has held the interim role since May 8, 2026 and will remain Chief Accounting Officer. Walia previously served as CFO of Hot Topic since 2021 and of 99 Cents Only Stores, and the filing sets out his pay and severance terms, which shareholders can review in the filing.
Employment agreement dated May 21, 2026, with a three-year initial term and automatic one-year renewals
Base salary of $690,000, with a target annual incentive of 100% of base salary
Initial restricted stock unit award valued at $1,250,000, vesting in equal thirds over three years
Severance if terminated without Cause or for Good Reason: two times base salary plus target annual incentive, payable in installments
Six Flags entered a Cooperation Agreement dated May 19, 2026 with H Partners Management, LLC, a long-time investor in the company. Rehan Jaffer, H Partners' founder and managing member, will join the board after the May 26, 2026 annual meeting, replacing Arik Ruchim, who is stepping down. The agreement also sets voting commitments and standstill restrictions for H Partners, which affect shareholders' governance.
Cooperation Agreement with H Partners Management, LLC dated May 19, 2026
Rehan Jaffer to be appointed Class III director after the May 26, 2026 annual meeting, replacing Arik Ruchim, with a term expiring at the 2027 annual meeting
Jaffer to join the Audit and Finance Committee; his irrevocable resignation takes effect if H Partners holds less than 3% of outstanding common stock
H Partners agreed to vote in line with Board recommendations until the Standstill Termination Date, the later of the 2027 annual meeting's conclusion or 20 days after Jaffer leaves the board
Six Flags said CFO Brian Witherow and Chief Legal and Compliance Officer Brian Nurse will both leave effective May 8, 2026. Chief Accounting Officer David Hoffman will serve as interim CFO, and the company has not yet named a permanent successor. The filing says the company will provide an update when its CFO succession process is complete, and it was filed alongside a separate first quarter 2026 results release.
Brian Witherow steps down as CFO and Brian Nurse departs as Chief Legal and Compliance Officer, both effective May 8, 2026.
David Hoffman, 57, Chief Accounting Officer, becomes interim CFO effective May 8, 2026, with an additional $20,000 cash payment per month for the role.
Amy Martin Ziegenfuss will become Chief Marketing Officer and Christopher Bennett will become Chief Legal and Compliance Officer, both effective June 3, 2026.
No permanent CFO has been named; the company says its succession process has advanced and it will provide an update when complete.
Six Flags reported first-quarter 2026 net revenues up 12% to $225.6 million and attendance up 4%, but its net loss attributable to shareholders widened to $269 million from $220 million. The loss included a $38.6 million goodwill and intangibles impairment and a $28.0 million loss on a disposal group, while Adjusted EBITDA loss narrowed to $123 million from $171 million.
Net revenues rose 12% to $225.6 million, and attendance rose 4% to 2.9 million visits, despite 24 fewer operating days.
Net loss attributable to Six Flags was $269 million, compared with $220 million a year earlier.
Adjusted EBITDA loss improved by $48 million, to $123 million from $171 million.
Through May 3, 2026, year-to-date same-park attendance was up 4% and the active pass base was about 5 million, up 6%.
Six Flags Entertainment appointed Richard Haddrill as Executive Chair of its Board, effective immediately, on March 24, 2026, with the Board expanding to 11 members. Under a three-year employment agreement, he receives a $500,000 annual base salary and sign-on equity awards, and Marilyn Spiegel was named Lead Independent Director. The company says Haddrill will focus on improving profitability, but the filing contains no financial results or guidance.
Richard Haddrill appointed Executive Chair effective immediately; he will also serve as a Class II director until the 2026 Annual Meeting of Stockholders
Employment agreement covers three years with a $500,000 annual base salary
Sign-on grants include 217,797 restricted stock awards and 373,367 performance stock units
Marilyn Spiegel named Lead Independent Director; Board to expand to 11 members, reverting to 10 after Jennifer Mason leaves at the 2026 annual meeting
Six Flags disclosed that board member Jennifer Mason told the company on March 10, 2026 that she will not stand for re-election when her term expires at the 2026 annual meeting of stockholders. The filing states her decision was not due to any disagreement with the board, the company or management on operations, policies or practices. The change is a board turnover notice with no financial figures disclosed.
Jennifer Mason informed the company on March 10, 2026 of her decision
Her term expires at the 2026 annual meeting of stockholders
Filing states no disagreement with the board, company or management
Six Flags signed an Equity Purchase Agreement to sell six U.S. parks and related assets to EPR Properties and its operator affiliate for $318,885,000 in cash, and a separate subsidiary agreement covers Six Flags La Ronde in Montreal, for a combined $331 million across seven parks. The parks generated approximately $260 million in net revenue and $45 million in Adjusted EBITDA for 2025, and the company says proceeds will pay down debt, with closing expected by the end of the first quarter or early in the second quarter of 2026.
Buyer is EPR Properties (NYSE: EPR); the 8-K lists six parks, and the press release adds Six Flags La Ronde, for seven parks total
Press release cites $331 million total cash consideration, subject to purchase price adjustments; the 8-K states $318,885,000 for the Transaction
Parks collectively had about 4.5 million guests, $260 million in net revenue and $45 million in Adjusted EBITDA for the year ended Dec. 31, 2025
Ten percent of the purchase price goes into escrow at closing, with a three-year non-compete in favor of the buyer
Six Flags reported fourth-quarter 2025 net revenues of $650 million, down 5% from a year earlier, with attendance down 13% to 9.3 million guests. The net loss attributable to the company narrowed to $92 million, or $0.91 per diluted share, from $264 million, while Adjusted EBITDA fell to $165 million from $209 million. For the full year, the company reported a net loss attributable to shareholders of $1.60 billion, including a $1.5 billion non-cash impairment charge, and CEO John Reilly said 2025 results fell short of expectations.
Q4 2025 net revenues were $650 million, down $37 million (5%) from $687 million in Q4 2024; attendance fell 13% to 9.3 million.
Q4 2025 net loss attributable to the company was $92 million, or $0.91 per diluted share, versus a $264 million loss ($2.76 per diluted share) in Q4 2024.
Q4 2025 Adjusted EBITDA was $165 million, a $43 million decline from $209 million in Q4 2024.
Full-year 2025 net loss attributable to the company was $1.60 billion, including a $1.5 billion non-cash goodwill and intangibles impairment; net debt was $5.11 billion at Dec. 31, 2025.
On January 21, 2026, Six Flags amended its March 10, 2025 cooperation agreement with Dendur Capital LP and its affiliates. The amendment lets Dendur acquire cash-settled derivative securities and similar rights, provided its total economic exposure, including common stock, does not exceed 14.99%. The filing does not state a financial impact, but it changes the terms under which a significant outside holder can increase its economic interest in the company.
Amendment dated January 21, 2026, to the cooperation agreement originally dated March 10, 2025
Dendur may acquire derivative securities or decoupled rights that can be settled only in cash, not in shares
Aggregate Dendur economic exposure, including common stock, is capped at 14.99%
Six Flags and its co-issuers closed a private offering of $1 billion of 8.625% senior notes due January 15, 2032. Proceeds, plus cash on hand, will fund full redemption of its 2027 notes and accrued interest on them through February 6, 2026, replacing debt maturing in April 2027 with longer-dated debt at a higher stated rate.
Offering size: $1,000,000,000 aggregate principal of 8.625% senior notes due January 15, 2032; interest paid semi-annually from July 15, 2026
Proceeds and cash on hand will redeem the 5.375% and 5.500% senior notes due April 15, 2027, with a redemption date of February 6, 2026
Notes are senior unsecured, guaranteed by subsidiaries, and effectively junior to secured debt including the 6.625% senior secured notes due May 1, 2032
Six Flags entered a consulting agreement with Selim Bassoul, effective January 1, 2026, to advise on the Qiddiya park project in Riyadh, Saudi Arabia, through December 31, 2026. He will receive a total fee of $1,550,000 plus expense reimbursement, and the filing describes the role as overseeing development and serving as the primary liaison with local partners and government stakeholders. The filing does not describe a change to an executive officer or director role, so the direct effect on shareholders is limited to the disclosed fee and the project's oversight.
Consulting Agreement dated December 29, 2025, effective January 1, 2026, runs through December 31, 2026
Total fee of $1,550,000 plus reimbursement of reasonable and necessary expenses
Services cover Qiddiya development, local partner and government liaison, and support for 90 days after the grand opening
Full agreement to be filed as an exhibit to the next Form 10-K
Six Flags director Louis Carr notified the board on December 17, 2025 that he will resign effective December 24, 2025. The company said the resignation was not due to any disagreement with the board, the company or management. The filing also says the board will have 10 directors as of January 1, 2026, after previously announced departures of Selim Bassoul and Daniel Hanrahan.
Louis Carr resignation as director effective December 24, 2025; notified board December 17, 2025
No disagreement with the board, company or management cited as a reason
Board to comprise 12 directors after Carr's departure, and 10 directors as of January 1, 2026 after Selim Bassoul and Daniel Hanrahan leave
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