Six Flags Entertainment Corporation/NEW SEC filings FUN
Six Flags Entertainment Corporation/NEW has 225 filings in SEC EDGAR's recent list, going back to Nov 2, 2023. Its latest annual report, Form ARS, was filed on Apr 9, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 6, 2026, covering the quarter ended Jun 28, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations, regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| 4 | Insider transaction | Aug 12, 2026 | Aug 12, 2026 |
| 4 | Insider transaction | Jul 31, 2026 | Jul 29, 2026 |
| 4 | Insider transaction | Jul 31, 2026 | Jul 29, 2026 |
| 4 | Insider transaction | Jul 31, 2026 | Jul 29, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 30, 2026 | — |
| 3 | Initial insider ownership | Jul 17, 2026 | Jul 15, 2026 |
| 4 | Insider transaction | Jun 29, 2026 | Jun 25, 2026 |
| 4 | Insider transaction | Jun 29, 2026 | Jun 25, 2026 |
| 4 | Insider transaction | Jun 29, 2026 | Jun 25, 2026 |
| 4 | Insider transaction | Jun 29, 2026 | Jun 25, 2026 |
| 4 | Insider transaction | Jun 29, 2026 | Jun 25, 2026 |
| 4 | Insider transaction | Jun 29, 2026 | Jun 25, 2026 |
| 3 | Initial insider ownership | Jun 17, 2026 | Jun 17, 2026 |
| 4 | Insider transaction | Jun 16, 2026 | Jun 12, 2026 |
| 3 | Initial insider ownership | Jun 3, 2026 | Jun 1, 2026 |
| 3 | Initial insider ownership | May 27, 2026 | May 26, 2026 |
| 3 | Initial insider ownership | May 27, 2026 | May 27, 2026 |
| 4 | Insider transaction | May 26, 2026 | May 21, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2026 | — |
| 4 | Insider transaction | May 14, 2026 | May 12, 2026 |
| 4 | Insider transaction | May 14, 2026 | May 12, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 12, 2026 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| 4 | Insider transaction | Apr 20, 2026 | Apr 16, 2026 |
| 3 | Initial insider ownership | Apr 6, 2026 | Mar 24, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| 4 | Insider transaction | Feb 25, 2026 | Feb 23, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 12, 2026 | — |
| 4 | Insider transaction | Jan 6, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 6, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 6, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 6, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 6, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 6, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 6, 2026 | Jan 2, 2026 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Jan 5, 2026 | Dec 31, 2025 |
| 4 | Insider transaction | Dec 29, 2025 | Dec 24, 2025 |
| 4 | Insider transaction | Dec 9, 2025 | Dec 8, 2025 |
| 3 | Initial insider ownership | Dec 9, 2025 | Dec 8, 2025 |
| 4 | Insider transaction | Dec 9, 2025 | Dec 5, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 7, 2025 | — |
| 3 | Initial insider ownership | Oct 27, 2025 | Oct 17, 2025 |
| 4 | Insider transaction | Aug 25, 2025 | Aug 22, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| 4 | Insider transaction | Aug 8, 2025 | Aug 7, 2025 |
| 4 | Insider transaction | Jun 27, 2025 | Jun 25, 2025 |
| 3 | Initial insider ownership | Jun 27, 2025 | Jun 25, 2025 |
| 4 | Insider transaction | Jun 27, 2025 | Jun 25, 2025 |
| 4 | Insider transaction | Jun 27, 2025 | Jun 25, 2025 |
| 4 | Insider transaction | Jun 27, 2025 | Jun 25, 2025 |
| 3 | Initial insider ownership | Jun 27, 2025 | Jun 25, 2025 |
| 3 | Initial insider ownership | Jun 27, 2025 | Jun 25, 2025 |
| 3 | Initial insider ownership | Jun 27, 2025 | Jun 25, 2025 |
| 4 | Insider transaction | Jun 27, 2025 | Jun 25, 2025 |
| 4 | Insider transaction | Jun 24, 2025 | Jun 20, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 4, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 4, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 4, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 4, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 4, 2025 |
| 4 | Insider transaction | Jun 5, 2025 | Jun 4, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 15, 2025 | — |
| 4 | Insider transaction | May 12, 2025 | May 12, 2025 |
| 144 | Notice of proposed sale | May 12, 2025 | — |
| 4 | Insider transaction | May 6, 2025 | May 2, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Apr 14, 2025 | — |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Apr 2, 2025 | Mar 31, 2025 |
| 4 | Insider transaction | Mar 28, 2025 | Mar 26, 2025 |
| 4 | Insider transaction | Mar 28, 2025 | Mar 26, 2025 |
| 4 | Insider transaction | Mar 28, 2025 | Mar 26, 2025 |
| 4 | Insider transaction | Mar 28, 2025 | Mar 26, 2025 |
| 4 | Insider transaction | Mar 28, 2025 | Mar 26, 2025 |
| 4 | Insider transaction | Mar 28, 2025 | Mar 26, 2025 |
| 4 | Insider transaction | Mar 28, 2025 | Mar 26, 2025 |
| 4 | Insider transaction | Mar 28, 2025 | Mar 26, 2025 |
| 4 | Insider transaction | Mar 28, 2025 | Mar 26, 2025 |
| 4 | Insider transaction | Mar 18, 2025 | Mar 14, 2025 |
| 144 | Notice of proposed sale | Mar 14, 2025 | — |
| SCHEDULE 13G | Ownership over 5% (passive) | Mar 11, 2025 | — |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 26, 2025 | Feb 24, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 5, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 5, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 5, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 5, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 5, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 5, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 5, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 5, 2025 |
| 4 | Insider transaction | Feb 7, 2025 | Feb 5, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 8, 2025 | — |
| 4 | Insider transaction | Dec 16, 2024 | Dec 13, 2024 |
| 4 | Insider transaction | Dec 6, 2024 | Dec 4, 2024 |
| 4 | Insider transaction | Dec 6, 2024 | Dec 4, 2024 |
| 4 | Insider transaction | Dec 6, 2024 | Dec 4, 2024 |
| 4 | Insider transaction | Dec 6, 2024 | Dec 4, 2024 |
| 4 | Insider transaction | Dec 6, 2024 | Dec 4, 2024 |
| 4 | Insider transaction | Dec 6, 2024 | Dec 4, 2024 |
| 3 | Initial insider ownership | Jul 3, 2024 | Jul 1, 2024 |
| SC 13D | Ownership over 5% (active) | Jul 3, 2024 | — |
| 3 | Initial insider ownership | Jul 1, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | Jul 1, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | Jul 1, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | Jul 1, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | Jul 1, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | Jul 1, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | Jul 1, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | Jul 1, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | Jul 1, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | Jul 1, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | Jul 1, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | Jul 1, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | Jul 1, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | Jul 1, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | Jul 1, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | Jul 1, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | Jul 1, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | Jul 1, 2024 | Jul 1, 2024 |
| 3 | Initial insider ownership | Jul 1, 2024 | Jul 1, 2024 |
Showing 142 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Services-Amusement & Recreation Services (SIC 7900)
- Listed as
- FUN (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Charlotte, NC
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1999001
- Former names
- CopperSteel HoldCo, Inc. (until Jun 26, 2024)
Other Services-Amusement & Recreation Services companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.