1 unchanged sentence
Disclosure Controls and Procedures
−Removed: The Combined Company maintains a system of controls and procedures designed to ensure that information required to be disclosed in reports under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported within the time periods specified by the Commission and that such information is accumulated and communicated to management, including the Chief Executive Officer and the Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.
−Removed: As of December 31, 2024, management, with the participation of the Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the Combined Company's disclosure controls and procedures.
−Removed: Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the Combined Company's disclosure controls and procedures were effective as of December 31, 2024.
+Added: The Company maintains a system of controls and procedures designed to ensure that information required to be disclosed in reports under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported within the time periods specified by the Commission and that such information is accumulated and communicated to management, including the Chief Executive Officer and the Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.
+Added: As of December 31, 2025, management, with the participation of the Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the Company's disclosure controls and procedures.
+Added: Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the Company's disclosure controls and procedures were effective as of December 31, 2025.
Management's Report on Internal Control over Financial Reporting
Management is responsible for establishing and maintaining adequate internal control over financial reporting, as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act.
−Removed: The Combined Company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.
−Removed: Management, with the participation of the Chief Executive Officer and Chief Financial Officer, assessed the effectiveness of the Combined Company's internal control over financial reporting as of December 31, 2024.
+Added: The Company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.
+Added: Management, with the participation of the Chief Executive Officer and Chief Financial Officer, assessed the effectiveness of the Company's internal control over financial reporting as of December 31, 2025.
In making this assessment, it used the criteria described in "Internal Control - Integrated Framework" (2013) issued by the Committee of Sponsoring Organizations (COSO) of the Treadway Commission.
−Removed: On July 1, 2024, the Combined Company completed the Six Flags Merger.
−Removed: Management excluded Former Six Flags from its assessment of the effectiveness of the Combined Company's internal control over financial reporting as of December 31, 2024.
−Removed: This exclusion is in accordance with SEC guidance that an assessment of a recently acquired business's internal control over financial reporting may be omitted from management's report on internal control over financial reporting in the year of acquisition.
−Removed: Former Six Flags represented, in aggregate, approximately 75% of the Combined Company's consolidated assets as of December 31, 2024 and approximately 33% of the Combined Company's consolidated net revenues for the year ended December 31, 2024.
−Removed: As a result of its assessment, management concluded that, as of December 31, 2024, the Combined Company's internal control over financial reporting was effective.
−Removed: Deloitte & Touche LLP, the independent registered public accounting firm that audited the financial statements included in this Form 10-K, has issued an attestation report on the Combined Company's internal control over financial reporting.
+Added: As a result of its assessment, management concluded that, as of December 31, 2025, the Company's internal control over financial reporting was effective.
+Added: Deloitte & Touche LLP, the independent registered public accounting firm that audited the financial statements included in this Form 10-K, has issued an attestation report on the Company's internal control over financial reporting.
Changes in Internal Control over Financial Reporting
−Removed: The Mergers resulted in changes to the Combined Company's internal control over financial reporting beginning in July 2024.
−Removed: The Combined Company is currently in the process of integrating, evaluating, and where necessary, implementing changes in controls and procedures as it relates to the Former Six Flags.
−Removed: Except for the impact of the Mergers, there were no changes in the Combined Company's internal control over financial reporting that occurred during the fourth quarter of 2024 that have materially affected, or are reasonably likely to materially affect, the Combined Company's internal control over financial reporting.
+Added: The Mergers resulted in changes to the Company's internal control over financial reporting beginning in July 2024.
+Added: The Company is currently in the process of integrating, evaluating, and where necessary, implementing changes in controls and procedures as it relates to the Former Six Flags.
+Added: Except for the impact of the Mergers, there were no changes in the Company's internal control over financial reporting that occurred during the fourth quarter of 2025 that have materially affected, or are reasonably likely to materially affect, the Company's internal control over financial reporting.
OTHER INFORMATION.
2 unchanged sentences
Not applicable.
−Removed: T able of Contents
DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE.
Identification of Directors:
−Removed: The information required by this item is incorporated by reference to the material in the Combined Company's definitive proxy statement pursuant to Regulation 14A and/or an amendment to this Form 10-K under cover of Form 10-K/A to be filed within 120 days of the end of the fiscal year ended December 31, 2024 under the captions "Board of Directors", "Board Committees", and, if required, "Delinquent Section 16(a) Reports".
+Added: The information required by this item is incorporated by reference to the material in the Company's definitive proxy statement pursuant to Regulation 14A and/or an amendment to this Form 10-K under cover of Form 10-K/A to be filed within 120 days of the end of the fiscal year ended December 31, 2025 under the captions "Election of Directors", "Board Committees", and, if required, "Delinquent Section 16(a) Reports".
Identification of Executive Officers:
−Removed: Information regarding executive officers of the Combined Company is included in this Annual Report on Form 10-K under the caption "Supplemental Item.
+Added: Information regarding executive officers of the Company is included in this Annual Report on Form 10-K under the caption "Supplemental Item.
Information about Executive Officers" in Item 1 of Part I and is incorporated herein by reference.
Corporate Governance:
−Removed: In accordance with Section 406 of the Sarbanes-Oxley Act of 2002 and Item 406 of Regulation S-K, the Combined Company has adopted a Code of Conduct and Ethics (the "Code"), which applies to all directors, officers and employees, including the Chief Executive Officer, Chief Financial Officer and Chief Accounting Officer.
+Added: In accordance with Section 406 of the Sarbanes-Oxley Act of 2002 and Item 406 of Regulation S-K, the Company has adopted a Code of Conduct and Ethics (the "Code"), which applies to all directors, officers and employees, including the Chief Executive Officer, Chief Financial Officer and Chief Accounting Officer.
A copy of the Code is available free of charge on the Investor Relations website ( investors.sixflags.com ).
−Removed: The information required by Item 408(b) of Regulation S-K is incorporated by reference to the material in the Combined Company's definitive proxy statement pursuant to Regulation 14A and/or an amendment to this Form 10-K under cover of Form 10-K/A to be filed within 120 days of the end of the fiscal year ended December 31, 2024 under the caption "Securities Trading Policy".
+Added: We intend to disclose any amendments to the Code, as well as any waivers for executive officers or directors, on our website.
+Added: The information required by Item 408(b) of Regulation S-K is incorporated by reference to the material in the Company's definitive proxy statement pursuant to Regulation 14A and/or an amendment to this Form 10-K under cover of Form 10-K/A to be filed within 120 days of the end of the fiscal year ended December 31, 2025 under the caption "Securities Trading Policy".
EXECUTIVE COMPENSATION.
−Removed: The information required by this item is incorporated by reference to the material in the Combined Company's definitive proxy statement pursuant to Regulation 14A and/or an amendment to this Form 10-K under cover of Form 10-K/A to be filed within 120 days of the end of the fiscal year ended December 31, 2024 under the captions "Executive Compensation", "Director Compensation", "Compensation Committee Interlocks and Insider Participation", and "People, Culture & Compensation Committee Report".
+Added: The information required by this item is incorporated by reference to the material in the Company's definitive proxy statement pursuant to Regulation 14A and/or an amendment to this Form 10-K under cover of Form 10-K/A to be filed within 120 days of the end of the fiscal year ended December 31, 2025 under the captions "Compensation Discussion & Analysis", "Executive Compensation Tables", "Director Compensation", "Compensation Committee Interlocks and Insider Participation", and "People, Culture & Compensation Committee Report".
SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED SHAREHOLDER MATTERS.
−Removed: The information required by this item is incorporated by reference to the material in the Combined Company's definitive proxy statement pursuant to Regulation 14A or an amendment to this Form 10-K under cover of Form 10-K/A to be filed within 120 days of the end of the fiscal year ended December 31, 2024 under the caption "Security Ownership of Certain Beneficial Owners and Management".
+Added: The information required by this item is incorporated by reference to the material in the Company's definitive proxy statement pursuant to Regulation 14A or an amendment to this Form 10-K under cover of Form 10-K/A to be filed within 120 days of the end of the fiscal year ended December 31, 2025 under the caption "Security Ownership of Certain Beneficial Owners and Management".
EQUITY COMPENSATION PLAN INFORMATION
−Removed: The following table sets forth information concerning shares of common stock authorized or available for issuance under equity compensation plans (see Note 9 ) as of December 31, 2024:
+Added: The following table sets forth information concerning shares of common stock authorized or available for issuance under equity compensation plans (see Note 9 to the accompanying consolidated financial statements) as of December 31, 2025:
Plan Category
1 unchanged sentence
Weighted-average exercise price of outstanding options, warrants and rights
−Removed: (b) Number of shares remaining available for future issuance under equity compensation plans
−Removed: (excluding units
−Removed: reflected in column (a))
+Added: (b) Number of shares remaining available for future issuance under equity compensation plans (excluding units reflected in column (a))
Equity compensation plans approved by shareholders 3,079,677 $ 100.74 5,637,850
1 unchanged sentence
Total 3,079,677 $ 100.74 5,637,850
−Removed: (1) The shares in column (a) include performance stock unit awards at the maximum number of shares issuable.
+Added: (1) The shares in column (a) include performance stock units at the maximum number of shares issuable.
CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE.
−Removed: The information required by this item is incorporated by reference to the material in the Combined Company's definitive proxy statement pursuant to Regulation 14A and/or an amendment to this Form 10-K under cover of Form 10-K/A to be filed within 120 days of the end of the fiscal year ended December 31, 2024 under the captions "Certain Relationships and Related Transactions", "Board Independence", and "Board Committees".
−Removed: T able of Contents
+Added: The information required by this item is incorporated by reference to the material in the Company's definitive proxy statement pursuant to Regulation 14A and/or an amendment to this Form 10-K under cover of Form 10-K/A to be filed within 120 days of the end of the fiscal year ended December 31, 2025 under the captions "Certain Relationships and Related Transactions", "Board Independence", and "Board Committees".
PRINCIPAL ACCOUNTANT FEES AND SERVICES.
−Removed: The information required by this item is incorporated by reference to the material in the Combined Company's definitive proxy statement pursuant to Regulation 14A and/or an amendment to this Form 10-K under cover of Form 10-K/A to be filed within 120 days of the end of the fiscal year ended December 31, 2024 under the caption "Independent Registered Public Accounting Firm Services and Fees".
+Added: The information required by this item is incorporated by reference to the material in the Company's definitive proxy statement pursuant to Regulation 14A and/or an amendment to this Form 10-K under cover of Form 10-K/A to be filed within 120 days of the end of the fiscal year ended December 31, 2025 under the caption "Fees Paid to Auditors".
EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.
19 unchanged sentences
Amended and Restated Bylaws of Six Flags Entertainment Corporation.
−Removed: In corporated herein by reference to Exhibit 3.2 to the Combined Company's Form 8-K (File No.
−Removed: 001-42157) initially filed on July 1, 2024 .
−Removed: Indenture, dated as of April 13, 2017, by and among Cedar Fair, L.P., Canada’s Wonderland Company, Magnum Management Corporation and Millennium Operations LLC, as issuers, the guarantors named therein and The Bank of New York Mellon Corporation, as trustee (including Form of 5.375% Senior Note due 2027).
−Removed: Incorporated herein by reference to Exhibit 4.1 to Cedar Fair's Form 8-K (File No.
−Removed: 001-09444) filed on April 13, 2017.
−Removed: Registration Rights Agreement, dated April 13, 2017, by and among Cedar Fair, L.P., Canada’s Wonderland Company, Magnum Management Corporation and Millennium Operations LLC, as issuers, the guarantors named therein and J.P.
−Removed: Morgan Securities LLC, on behalf of itself and as representative of the initial purchasers named therein.
−Removed: Incorporated herein by reference to Exhibit 4.3 to the Cedar Fair’s Form 8-K (File No.
−Removed: 001-09444) filed on April 13, 2017.
−Removed: First Supplemental Indenture, dated as of July 29, 2020, by and among Cedar Fair, L.P., Canada’s Wonderland Company, Magnum Management Corporation, Millennium Operations LLC, as issuers, the guarantors named therein and The Bank of New York Mellon, as trustee, to the Indenture, dated as of April 13, 2017, relating to the 2027 Notes.
−Removed: Incorporated herein by reference to Exhibit 4.1 (iii) to Cedar Fair's Form 10-K (File No.
−Removed: 001-09444) filed on February 16, 2024 .
−Removed: T able of Contents
−Removed: Exhibit Number Description
−Removed: Second Supplemental Indenture, dated as of November 9, 2023, by and among Cedar Fair, L.P., Canada’s Wonderland Company, Magnum Management Corporation, Millennium Operations LLC, as issuers, the guarantors named therein and The Bank of New York Mellon, as trustee, to the Indenture, dated as of April 13, 2017, relating to the 2027 Notes (furnished herewith).
−Removed: Incorporated herein by reference to Exhibit 4.1 to Cedar Fair's Form 8-K (File No.
−Removed: 001-09444) filed on November 13, 2023.
−Removed: Third Supplemental Indenture, dated as of July 1, 2024, by and among Six Flags Entertainment Corporation, Canada’s Wonderland Company, Magnum Management Corporation, Millennium Operations LLC, as issuers, the guarantors named therein and The Bank of New York Mellon, as trustee, to the Indenture, dated as of April 13, 2017, relating to the Cedar Fair 2027 Notes.
Incorporated herein by reference to Exhibit 3.2 to the Combined Company's Form 8-K (File No.
1 unchanged sentence
Indenture, dated as of June 27, 2019, by and among Cedar Fair, L.P., Canada’s Wonderland Company, Magnum Management Corporation and Millennium Operations LLC, as issuers, the guarantors named therein and The Bank of New York Mellon, as trustee (including Form of 5.250% Senior Note due 2029).
−Removed: Incorporated herein by reference to Exhibit 4.1 to Ced ar Fair's Form 8-K (File No.
+Added: Incorporated herein by reference to Exhibit 4.1 to Cedar Fair's Form 8-K (File No.
001-09444) filed on June 27, 2019.
4 unchanged sentences
First Supplemental Indenture, dated as of July 29, 2020, by and among Cedar Fair, L.P., Canada’s Wonderland Company, Magnum Management Corporation, Millennium Operations LLC, as issuers, the guarantors named therein and The Bank of New York Mellon, as trustee, to the Indenture, dated as of June 27, 2019, relating to the 2029 Notes.
−Removed: Incorporated herein by reference to Exhibit 4.
−Removed: 2 (iii) to Cedar Fair's Form 10-K (File No.
+Added: Incorporated herein by reference to Exhibit 4.2 (iii) to Cedar Fair's Form 10-K (File No.
001-09444) filed on February 16, 2024.
8 unchanged sentences
001-09444) filed on October 7, 2020.
+Added: Exhibit Number Description
Registration Rights Agreement, dated October 7, 2020, by and among Cedar Fair, L.P., Canada’s Wonderland Company, Magnum Management Corporation and Millennium Operations LLC, as issuers, the guarantors named therein and J.P.
8 unchanged sentences
001-42157) initially filed on July 1, 2024.
−Removed: Indenture, dated as of April 13, 2017, by and among Six Flags Entertainment Corporation, each of the guarantors party thereto and U.S.
−Removed: Bank National Association as trustee (including Form of 5.500% Senior Notes due 2027).
−Removed: Incorporated herein by reference to Exhibit A to Exhibit 4.3 to Former Six Flags's Form 8-K (File No.
−Removed: 001-13703) filed on April 13, 2017.
−Removed: Fourth Supplemental Indenture, dated as of July 1, 2024, by and among Six Flags Entertainment Corporation, the guarantors party thereto and U.S.
−Removed: Bank National Association, as trustee, to the Indenture, dated as of April 13, 2017.
−Removed: Incorporated herein by reference to Exhibit 4.2 to the Combined Company's Form 8-K (File No.
−Removed: 001-42157) initially filed on July 1, 2024.
−Removed: Indenture, dated as of April 22, 2020, by and among Six Flags Theme Parks Inc., the Guarantors party thereto and U.S.
−Removed: Bank National Association as trustee and as collateral agent (including Form of 7.000% Senior Secured Notes due 2025).
−Removed: Incorporated herein by reference to Exhibit 4.1 to Former Six Flags's Form 8-K (File No.
−Removed: 001-13703) filed on April 23, 2020.
−Removed: T able of Contents
−Removed: Exhibit Number Description
−Removed: First Supplemental Indenture, dated as of July 1, 2024, by and among Six Flags Entertainment Corporation, Six Flags Theme Parks Inc., the guarantors party thereto and U.S.
−Removed: Bank National Association, as trustee and collateral agent, to the Indenture, dated as of April 22, 2020.
−Removed: Incorporated herein by reference to Exhibit 4.3 to the Combined Company's Form 8-K (File No.
−Removed: 001-42157) initially filed on July 1, 2024.
Indenture, dated as of May 3, 2023, among Six Flags Entertainment Corporation, each of the guarantors party thereto and U.S.
14 unchanged sentences
001-42157) initially filed on July 1, 2024.
+Added: Indenture, dated as of January 14, 2026, by and among Six Flags Entertainment Corporation, Canada’s Wonderland Company, Millennium Operations LLC, each of the guarantors party thereto and U.S.
+Added: Bank Trust Company, National Association, as trustee.
+Added: Incorporated herein by reference to Exhibit 4.1 to the Combined Company's Form 8-K (File No.
+Added: 001-42157) filed on January 14, 2026.
Description of Registrant's Securities.
+Added: Incorporated herein by reference to Exhibit 4.8 to the Combined Company's Form 10-K (File No.
+Added: 001-42157) filed on March 3, 2025.
Credit Agreement, dated as of May 1, 2024, by and among Cedar Fair, L.P., Canada’s Wonderland Company and Millennium Operations LLC, as borrowers, the other subsidiary borrowers party thereto, the guarantors party thereto, the lenders party thereto and Wells Fargo Bank, National Association, as administrative agent and collateral agent.
13 unchanged sentences
001-42157) initially filed on July 1, 2024.
+Added: Second Incremental Assumption Agreement, dated as of June 27, 2025, by and among, inter alios, the Company, certain subsidiaries of the Company party thereto as subsidiary guarantors, the lender party thereto and Wells Fargo Bank, National Association, as administrative agent and collateral agent.
+Added: Incorporated herein by reference to Exhibit 10.1 to the Combined Company's Form 8-K (File No.
+Added: 001-42157) filed on June 27, 2025.
Cedar Fair L.P., 2016 Omnibus Incentive Plan.
4 unchanged sentences
001-42157) initially filed on July 1, 2024.
+Added: Exhibit Number Description
Six Flags Entertainment Corporation Long-Term Incentive Plan.
7 unchanged sentences
001-42157) filed on November 6, 2024.
−Removed: Employment agreement, dated July 1, 2024, by and among Six Flags Entertainment Corporation and Gary Mick.
+Added: Executive Release Agreement, dated December 5, 2025, by and between the Company and Selim Bassoul.
+Added: Consultant Agreement, dated January 1, 2026, by and between Six Flags Entertainment Corporation and Selim Bassoul.
+Added: Employment agreement, dated October 8, 2024, by and among Six Flags Entertainment Corporation and Richard A.
Incorporated herein by reference to Exhibit 10.9 to the Combined Company's Form 10-Q (File No.
001-42157) filed on November 6, 2024.
−Removed: Employment agreement, dated October 8, 2024, by and among Six Flags Entertainment Corporation and Richard A.
+Added: Executive Release Agreement, dated October 9, 2025, by and between the Company and Richard Zimmerman.
Incorporated herein by reference to Exhibit 10.2 to the Combined Company's Form 10-Q (File No.
3 unchanged sentences
001-42157) filed on November 6, 2024.
−Removed: T able of Contents
−Removed: Exhibit Number Description
+Added: First Amendment to Employment Agreement, dated November 21, 2025, by and between Six Flags Entertainment Corporation and Brian Witherow.
Employment agreement, dated October 8, 2024, by and among Six Flags Entertainment Corporation and Tim Fisher.
1 unchanged sentence
001-42157) filed on November 6, 2024.
+Added: First Amendment to Employment Agreement, dated November 21, 2025, by and between Six Flags Entertainment Corporation and Tim Fisher.
Employment agreement, dated October 8, 2024, by and among Six Flags Entertainment Corporation and Brian Nurse.
1 unchanged sentence
001-42157) filed on November 6, 2024.
−Removed: Employment agreement, dated October 8, 2024, by and among Six Flags Entertainment Corporation and Monica Sauls.
−Removed: Incorporated herein by reference to Exhibit 10.13 to the Combined Company's Form 10-Q (File No.
−Removed: 001-42157) filed on November 6, 2024.
+Added: First Amendment to Employment Agreement, dated November 21, 2025, by and between Six Flags Entertainment Corporation and Brian Nurse.
Employment agreement, dated October 8, 2024, by and among Six Flags Entertainment Corporation and Christian Dieckmann.
1 unchanged sentence
001-42157) filed on November 6, 2024.
+Added: First Amendment to Employment Agreement, dated November 21, 2025, by and between Six Flags Entertainment Corporation and Christian Dieckmann.
Employment agreement, dated October 8, 2024, by and among Six Flags Entertainment Corporation and David Hoffman.
1 unchanged sentence
001-42157) filed on November 6, 2024.
+Added: First Amendment to Employment Agreement, dated November 21, 2025, by and between Six Flags Entertainment Corporation and David Hoffman.
Employment agreement, dated October 8, 2024, by and among Six Flags Entertainment Corporation and Ty Tastepe.
1 unchanged sentence
001-42157) filed on November 6, 2024.
+Added: First Amendment to Employment Agreement, dated November 21, 2025, by and between Six Flags Entertainment Corporation and Ty Tastepe.
+Added: Employment Agreement, dated December 8, 2025, by and between Six Flags Entertainment Corporation and John Reilly.
+Added: Employment agreement, dated October 8, 2024, by and among Six Flags Entertainment Corporation and Monica Sauls.
+Added: Incorporated herein by reference to Exhibit 10.13 to the Combined Company's Form 10-Q (File No.
+Added: 001-42157) filed on November 6, 2024.
+Added: Executive Release Agreement, dated June 18, 2025, by and between the Company and Monica Sauls.
+Added: Incorporated herein by reference to Exhibit 10.2 to the Combined Company's Form 10-Q (File No.
+Added: 001-42157) filed on August 6, 2025.
Employment agreement, dated October 8, 2024, by and among Six Flags Entertainment Corporation and Robert White.
1 unchanged sentence
001-42157) filed on November 6, 2024.
+Added: Executive Release Agreement, dated March 26, 2025, by and between the Company and Robert White.
+Added: Incorporated herein by reference to Exhibit 10.1 to the Combined Company's Form 10-K/A (File No.
+Added: 001-42157) filed on April 29, 2025.
+Added: Exhibit Number Description
10.5 (i) Overall Agreement, dated February 15, 1997 by and among Six Flags Fund, Ltd.
10 unchanged sentences
Incorporated herein by reference from Exhibit 10 (bb) to Former Six Flags's Form 10-K (File No.
−Removed: 001-13703) file d on March 12, 20 04 .
+Added: 001-13703) filed on March 12, 2004.
Amendment No.
2 unchanged sentences
Incorporated herein by reference from Exhibit 10 (cc) to Former Six Flags’s Form 10-K (File No.
−Removed: 001-13703) filed o n March 12, 2004 .
+Added: 001-13703) filed on March 12, 2004.
Amendment No.
13 unchanged sentences
Incorporated herein by reference to Exhibit 10.6 to Former Six Flags’s Form 10-Q (File No.
−Removed: 001-13703) f iled on August 14, 200 9.
+Added: 001-13703) filed on August 14, 2009.
Amendment No.
2 unchanged sentences
Incorporated herein by reference to Exhibit 10.7 to Former Six Flags’s Form 10-Q (File No.
−Removed: 001-13703) f iled on August 14 , 2009.
+Added: 001-13703) filed on August 14, 2009.
Amendment No.
2 unchanged sentences
Incorporated herein by reference from Exhibit 10.7 to Former Six Flags’s Form 10-Q (File No.
−Removed: 001-13703) f iled on May 17, 2010 .
−Removed: T able of Contents
−Removed: Exhibit Number Description
+Added: 001-13703) filed on May 17, 2010.
Cedar Fair, L.P.
Executive and Management Severance Plan dated November 10, 2022.
−Removed: Incorporated herein by reference to Exhibit 10.31 to Ce dar Fair's Form 10-K (File No.
+Added: Incorporated herein by reference to Exhibit 10.31 to Cedar Fair's Form 10-K (File No.
001-09444) filed on February 17, 2023.
1 unchanged sentence
Executive Officer Acknowledgment and Agreement to Clawback Policy As Adopted October 23, 2023.
−Removed: Incorporated here in by refe rence to Exhi bit 10.25 to Cedar Fair's Form 1 0-K (File No.
−Removed: 001-09444) f iled on February 16, 2024.
+Added: Incorporated herein by reference to Exhibit 10.25 to Cedar Fair's Form 10-K (File No.
+Added: 001-09444) filed on February 16, 2024.
Contract of Sale, dated June 27, 2022, by and between California’s Great America, LLC and Prologis, L.P.
1 unchanged sentence
001-09444) filed on June 27, 2022.
−Removed: 2016 Omnibus Incentive Plan Form of Performance Unit Award Agreement (Spring 2021 Version).
−Removed: Incorporated herein by reference to Exhibit 10.1 to Cedar Fair's Form 8-K (File No.
−Removed: 001-09444) filed on March 30, 2021.
−Removed: 2016 Omnibus Incentive Plan Form of Restricted Unit Award Declaration (Spring 2021 Version).
−Removed: Incorporated herein by reference to Exhibit 10.2 to Cedar F air's Form 8-K (File No.
−Removed: 001-09444) filed on March 30, 2021.
2016 Omnibus Incentive Plan Form of Restricted Unit Award Declaration (2023 Employment Agreement Version).
1 unchanged sentence
001-09444) filed on May 4, 2023.
−Removed: 2016 Omnibus Incentive Plan Form of Restricted Unit Award Declaration (2022 Non-Employment Agreement Version).
−Removed: Incorporated herein by reference to Exhibit 10.3 to Cedar Fair's Form 10-Q (File No.
−Removed: 001-09444) filed on May 4, 2022.
−Removed: 2016 Omnibus Incentive Plan Form of Performance Unit Award Agreement (2022 Employment Agreement Version).
−Removed: Incorporated herein by reference to Exhibit 10.4 to Cedar Fair's Form 10-Q (File No.
−Removed: 001-09444) filed on May 4, 2022.
−Removed: 2016 Omnibus Incentive Plan Form of Performance Unit Award Agreement (2022 Non-Employment Agreement Version).
−Removed: Incorporated herein by reference to Exhibit 10.5 to Cedar Fair's Form 10-Q (File No.
−Removed: 001-09444) filed on May 4, 2022.
−Removed: 10 .9 (vi i )
−Removed: 2016 Omnibus Incentive Plan Form of Restricted Unit Award Declaration (2023 Employment Agreement Version).
−Removed: Incorporated herein by reference to Exhibit 10.1 to Cedar Fair's Form 10-Q (File No.
−Removed: 001-09444) filed on May 4, 2023.
−Removed: 10 .9 (v i i i)
2016 Omnibus Incentive Plan Form of Restricted Unit Award Declaration (2023 Severance Plan Version).
−Removed: Incorporated herein by reference to Exhibit 10.2 to Cedar F a ir's Form 10-Q (File No.
+Added: Incorporated herein by reference to Exhibit 10.2 to Cedar Fair's Form 10-Q (File No.
001-09444) filed on May 4, 2023.
8 unchanged sentences
001-09444) filed on February 16, 2024.
−Removed: 10 .9 (x i i)
2016 Omnibus Incentive Plan Form of Restricted Unit Award Declaration (2024 Employment Agreement Version).
1 unchanged sentence
001-09444) filed on May 9, 2024.
−Removed: 10 .9 (x i ii)
+Added: Exhibit Number Description
2016 Omnibus Incentive Plan Form of Restricted Unit Award Declaration (2024 Severance Plan Version).
1 unchanged sentence
001-09444) filed on May 9, 2024.
−Removed: 10 .9 ( xiv )
2016 Omnibus Incentive Plan Form of Performance Award Agreement (2024 Employment Agreement Version).
4 unchanged sentences
001-09444) filed on May 9, 2024.
−Removed: 10 .9 (xv i )
Form of Restricted Stock Unit Agreement Pursuant to the Six Flags Entertainment Corporation Long-Term Incentive Plan.
1 unchanged sentence
001-13703) filed on April 28, 2021.
−Removed: 10 .9 (xv i i)
Form of Nonqualified Stock Option Agreement and Dividend Equivalent Rights Agreement pursuant to the Six Flags Entertainment Corporation Long-Term Incentive Plan.
1 unchanged sentence
001-13703) filed on February 27, 2013.
−Removed: 10 .9 (xvii i )
Form of Performance Stock Unit Agreement Pursuant to the Six Flags Entertainment Corporation Long-Term Incentive Plan.
1 unchanged sentence
001-13703) filed on May 12, 2022.
−Removed: 10 .9 (x i x )
Form of Performance Unit Award Agreement for Certain Executive Officers under the 2024 Omnibus Incentive Plan.
−Removed: T able of Contents
−Removed: Exhibit Number Description
+Added: Incorporated herein by reference to Exhibit 10.9 (xix) to the Combined Company's Form 10-K (File No.
+Added: 001-42157) filed on March 3, 2025.
Form of Amended and Restated Performance Unit Award Agreement for Selim Bassoul and Gary Mick under the 2024 Omnibus Incentive Plan.
+Added: Incorporated herein by reference to Exhibit 10.9 (xx) to the Combined Company's Form 10-K (File No.
+Added: 001-42157) filed on March 3, 2025.
+Added: 2024 Omnibus Incentive Plan Form of Restricted Stock Award Agreement and Declaration (2025 Retirement Eligible Employment Agreement Version).
+Added: Incorporated herein by reference to Exhibit 10.4 to the Combined Company's Form 10-Q (File No.
+Added: 001-42157) filed on May 8, 2025.
+Added: 2024 Omnibus Incentive Plan Form of Restricted Stock Award Agreement and Declaration (2025 Non-Retirement Eligible Employment Agreement Version).
+Added: Incorporated herein by reference to Exhibit 10.5 to the Combined Company's Form 10-Q (File No.
+Added: 001-42157) filed on May 8, 2025.
+Added: 2024 Omnibus Incentive Plan Form of Restricted Stock Award Agreement and Declaration (2025 Severance Plan Version).
+Added: Incorporated herein by reference to Exhibit 10.6 to the Combined Company's Form 10-Q (File No.
+Added: 001-42157) filed on May 8, 2025.
+Added: 2024 Omnibus Incentive Plan Form of Performance Stock Unit Award Declaration (2025 Retirement Eligible Employment Agreement Version).
+Added: Incorporated herein by reference to Exhibit 10.7 to the Combined Company's Form 10-Q (File No.
+Added: 001-42157) filed on May 8, 2025.
+Added: 2024 Omnibus Incentive Plan Form of Performance Stock Unit Award Declaration (2025 Non-Retirement Eligible Employment Agreement Version).
+Added: Incorporated herein by reference to Exhibit 10.8 to the Combined Company's Form 10-Q (File No.
+Added: 001-42157) filed on May 8, 2025.
+Added: 2024 Omnibus Incentive Plan Form of Performance Stock Unit Award Declaration (2025 Severance Version).
+Added: Incorporated herein by reference to Exhibit 10.9 to the Combined Company's Form 10-Q (File No.
+Added: 001-42157) filed on May 8, 2025.
+Added: 2024 Omnibus Incentive Plan Form of Deferred Restricted Stock Unit Award Agreement (2025 Version).
+Added: Incorporated herein by reference to Exhibit 10.10 to the Combined Company's Form 10-Q (File No.
+Added: 001-42157) filed on May 8, 2025.
+Added: 2024 Omnibus Incentive Plan Form of Director Restricted Stock Award Agreement (2025 Version).
+Added: Incorporated herein by reference to Exhibit 10.11 to the Combined Company's Form 10-Q (File No.
+Added: 001-42157) filed on May 8, 2025.
+Added: 2024 Omnibus Incentive Plan Form of Deferred Restricted Stock Unit Award Agreement for certain awards.
+Added: Incorporated herein by reference to Exhibit 10.3 to the Combined Company's Form 10-Q (File No.
+Added: 001-42157) filed on August 6, 2025.
+Added: Cooperation Agreement, dated as of March 10, 2025, by and between the Company and Dendur.
+Added: Incorporated herein by reference to Exhibit 10.1 to the Combined Company's Form 8-K (File No.
+Added: 001-42157) filed on March 10, 2025.
+Added: Amendment to Cooperation Agreement, dated as of January 21, 2026, by and between the Company and Dendur.
+Added: Incorporated herein by reference to Exhibit 10.1 to the Combined Company's Form 8-K (File No.
+Added: 001-42157) filed on January 23, 2026.
+Added: Cooperation Agreement, by and among Six Flags Entertainment Corporation, Sachem Head Capital Management, dated as of October 17, 2025.
+Added: Incorporated herein by reference to Exhibit 10.1 to the Combined Company's Form 8-K (File No.
+Added: 001-42157) filed on October 17, 2025.
+Added: Exhibit Number Description
Insider Trading Policy.
+Added: Incorporated herein by reference to Exhibit 19 to the Combined Company's Form 10-K (File No.
+Added: 001-42157) filed on March 3, 2025.
Subsidiaries of the Combined Company.
7 unchanged sentences
Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
−Removed: Clawback Policy as effective October 2, 2023.
+Added: Clawback Policy.
+Added: Incorporated herein by reference to Exhibit 97 to the Combined Company's Form 10-K (File No.
+Added: 001-42157) filed on March 3, 2025.
101 The following materials from the Combined Company's Annual Report on Form 10-K for the year ended December 31, 2025 formatted in Inline XBRL:
4 unchanged sentences
FORM 10-K SUMMARY.
−Removed: T able of Contents
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
SIX FLAGS ENTERTAINMENT CORPORATION
−Removed: March 3, 2025
−Removed: /s/ Richard A.
+Added: February 26, 2026
+Added: /s/ John Reilly
President and Chief Executive Officer
1 unchanged sentence
Signature Title Date
−Removed: /s/ Richard A.
−Removed: Zimmerman Director, President and Chief Executive Officer March 3, 2025
−Removed: Zimmerman (Principal Executive Officer)
−Removed: Witherow Chief Financial Officer March 3, 2025
−Removed: Witherow (Principal Financial Officer)
−Removed: Hoffman Chief Accounting Officer March 3, 2025
−Removed: Hoffman (Principal Accounting Officer)
−Removed: /s/ Selim Bassoul Executive Chairman March 3, 2025
−Removed: Selim Bassoul
−Removed: /s/ Daniel J.
−Removed: Hanrahan Lead Independent Director March 3, 2025
−Removed: /s/ Esi Eggleston Bracey Director March 3, 2025
−Removed: Esi Eggleston Bracey
−Removed: /s/ Louis Carr Director March 3, 2025
−Removed: /s/ Michelle M.
−Removed: Frymire Director March 3, 2025
−Removed: /s/ Chieh Huang Director March 3, 2025
−Removed: /s/ Jennifer Mason Director March 3, 2025
−Removed: Jennifer Mason
−Removed: /s/ Enrique Ramirez Mena Director March 3, 2025
−Removed: Enrique Ramirez Mena
−Removed: Scott Olivet Director March 3, 2025
−Removed: /s/ Arik Ruchim Director March 3, 2025
−Removed: /s/ Marilyn Spiegel Director March 3, 2025
+Added: /s/ John Reilly Director, President and Chief Executive Officer February 26, 2026
+Added: John Reilly (Principal Executive Officer)
+Added: /s/ Brian Witherow Chief Financial Officer February 26, 2026
+Added: Brian Witherow (Principal Financial Officer)
+Added: /s/ David Hoffman Chief Accounting Officer February 26, 2026
+Added: David Hoffman (Principal Accounting Officer)
+Added: /s/ Marilyn Spiegel Chair of the Board of Directors February 26, 2026
Marilyn Spiegel
+Added: /s/ Jonathan Brudnick Director February 26, 2026
+Added: Jonathan Brudnick
+Added: /s/ Sandra Cochran Director February 26, 2026
+Added: Sandra Cochran
+Added: /s/ Michael Colglazier Director February 26, 2026
+Added: Michael Colglazier
+Added: /s/ Felipe Dutra Director February 26, 2026
+Added: /s/ Steven Hoffman Director February 26, 2026
+Added: Steven Hoffman
+Added: /s/ Chieh Huang Director February 26, 2026
+Added: /s/ Jennifer Mason Director February 26, 2026
+Added: Jennifer Mason
+Added: /s/ Arik Ruchim Director February 26, 2026
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.