Six Flags Entertainment Corporation/NEW

For the period ended Sep 28, 2025. Filed Nov 7, 2025.

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A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 28, 2025 · Filed Nov 7, 2025

FUN$10.16-5.6%Stored close · as of Nov 10, 2026

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Contents

Item 6. Exhibits

Exhibit Number	Description of Exhibit
10.1	Cooperation Agreement, by and among Six Flags Entertainment Corporation, Sachem Head Capital Management, dated as of October 17, 2025. Incorporated herein by reference to Exhibit 10.1 to the Combined Company's Form 8-K (File No. 001-42157) filed on October 17, 2025.
10.2	Executive Release Agreement, dated October 9, 2025, by and between the Company and Richard Zimmerman.
22	Subsidiary Guarantors and Issuers of Guaranteed Securities. Incorporated herein by reference to Exhibit 22 to the Combined Company's Form 10-Q (File No. 001-42157) filed on November 6, 2024.
31.1	Certification of Principal Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification of Principal Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32	Certifications Pursuant to 18 U.S.C. 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101	The following materials from the Combined Company's Quarterly Report on Form 10-Q for the quarter ended September 28, 2025 formatted in Inline XBRL: (i) the Unaudited Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income, (ii) the Unaudited Condensed Consolidated Balance Sheets, (iii) the Unaudited Condensed Consolidated Statements of Cash Flow, (iv) the Unaudited Condensed Consolidated Statements of Equity, and (v) related notes, tagged as blocks of text and including detailed tags.
104	The cover page from the Combined Company's Quarterly Report on Form 10-Q for the quarter ended September 28, 2025 formatted in Inline XBRL (included as Exhibit 101).

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