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 |
|---|---|---|---|
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 5, 2026 | Nov 5, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2026 | — |
| 4 | Insider transaction | Aug 12, 2026 | Aug 12, 2026 |
| 10-Q | Quarterly report | Aug 6, 2026 | Jun 28, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2026 | Aug 6, 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 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jul 2, 2026 | Jul 1, 2026 |
| 8-K |
Current report
Officer or director change
|
Jul 1, 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 |
| 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 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
May 27, 2026 | May 21, 2026 |
| 8-K |
Current report
Shareholder vote results
|
May 27, 2026 | May 26, 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 |
| 8-K |
Current report
Material agreement, Officer or director change
|
May 20, 2026 | May 19, 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 | — |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
May 7, 2026 | May 7, 2026 |
| 10-Q | Quarterly report | May 7, 2026 | Mar 29, 2026 |
| 8-K |
Current report
Results of operations
|
May 7, 2026 | May 7, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 29, 2026 | — |
| 4 | Insider transaction | Apr 20, 2026 | Apr 16, 2026 |
| ARS | Annual report to shareholders | Apr 9, 2026 | Dec 31, 2025 |
| DEF 14A | Proxy statement | Apr 9, 2026 | May 26, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 9, 2026 | Apr 8, 2026 |
| 3 | Initial insider ownership | Apr 6, 2026 | Mar 24, 2026 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Apr 6, 2026 | Apr 6, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Mar 25, 2026 | Mar 24, 2026 |
| 8-K |
Current report
Officer or director change
|
Mar 13, 2026 | Mar 10, 2026 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Mar 5, 2026 | Mar 5, 2026 |
| 10-K | Annual report | Feb 26, 2026 | Dec 31, 2025 |
| 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 |
| 8-K |
Current report
Results of operations
|
Feb 19, 2026 | Feb 19, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 12, 2026 | — |
| 8-K |
Current report
Material agreement
|
Jan 23, 2026 | Jan 21, 2026 |
| 8-K |
Current report
Material agreement, New debt
|
Jan 14, 2026 | Jan 14, 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 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jan 6, 2026 | Jan 6, 2026 |
| 8-K |
Current report
Other events
|
Jan 5, 2026 | Jan 5, 2026 |
| 8-K |
Current report
Officer or director change
|
Jan 5, 2026 | Dec 29, 2025 |
| 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 |
| 8-K |
Current report
Officer or director change
|
Dec 23, 2025 | Dec 17, 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 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Nov 24, 2025 | Nov 21, 2025 |
| 10-Q | Quarterly report | Nov 7, 2025 | Sep 28, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Nov 7, 2025 | — |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 7, 2025 | Nov 7, 2025 |
| 3 | Initial insider ownership | Oct 27, 2025 | Oct 17, 2025 |
| 8-K |
Current report
Material agreement, Officer or director change, Regulation FD disclosure
|
Oct 17, 2025 | Oct 17, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Oct 10, 2025 | Oct 10, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 12, 2025 | Sep 12, 2025 |
| 4 | Insider transaction | Aug 25, 2025 | Aug 22, 2025 |
| 8-K/A |
Amended current report
Shareholder vote results
|
Aug 22, 2025 | Jun 25, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Aug 14, 2025 | — |
| 4 | Insider transaction | Aug 8, 2025 | Aug 7, 2025 |
| 10-Q | Quarterly report | Aug 6, 2025 | Jun 29, 2025 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Aug 6, 2025 | Aug 6, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2025 | Aug 6, 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 |
| 8-K |
Current report
Material agreement, New debt
|
Jun 27, 2025 | Jun 27, 2025 |
| 8-K |
Current report
Shareholder vote results
|
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 |
| 8-K |
Current report
Regulation FD disclosure
|
May 20, 2025 | May 20, 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 | — |
| ARS | Annual report to shareholders | May 9, 2025 | Dec 31, 2024 |
| DEF 14A | Proxy statement | May 9, 2025 | Jun 25, 2025 |
| 10-Q | Quarterly report | May 8, 2025 | Mar 30, 2025 |
| 8-K |
Current report
Results of operations
|
May 8, 2025 | May 8, 2025 |
| 4 | Insider transaction | May 6, 2025 | May 2, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
May 1, 2025 | May 1, 2025 |
| 10-K/A | Amended annual report | Apr 29, 2025 | Dec 31, 2024 |
| 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 | — |
| 8-K |
Current report
Material agreement, Officer or director change, Regulation FD disclosure
|
Mar 10, 2025 | Mar 10, 2025 |
| 10-K | Annual report | Mar 3, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 27, 2025 | Feb 27, 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 |
| 8-K |
Current report
Other events
|
Jan 24, 2025 | Jan 24, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jan 8, 2025 | — |
| 8-K |
Current report
Material agreement
|
Dec 23, 2024 | Dec 17, 2024 |
| 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 |
| 10-Q | Quarterly report | Nov 6, 2024 | Sep 29, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 6, 2024 | Nov 6, 2024 |
| 8-K |
Current report
Officer or director change
|
Oct 15, 2024 | Oct 8, 2024 |
| 8-K12B/A | Filing | Sep 16, 2024 | Jul 1, 2024 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 3, 2024 | Sep 3, 2024 |
| 8-K |
Current report
Other events
|
Aug 8, 2024 | Aug 8, 2024 |
| 10-Q | Quarterly report | Aug 8, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2024 | Aug 8, 2024 |
| 8-K |
Current report
Officer or director change
|
Jul 8, 2024 | Jul 1, 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 |
Showing 200 filings, the most recent 200. 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.