| SC 13G/A | 2024-02-13 | VANGUARD GROUP INC | Six Flags Entertainment Corp | 7,805,181 | 9.3% | EDGAR |
| SC 13G/A | 2024-02-12 | THUNDERBIRD PARTNERS LLP | Six Flags Entertainment Corp | 4,030,075 | 4.8% | EDGAR |
| SC 13G/A | 2024-01-23 | BlackRock Inc. | Six Flags Entertainment Corp | 11,018,449 | 13.2% | EDGAR |
| SC 13D/A | 2023-11-15 | H PARTNERS MANAGEMENT, LLC | Six Flags Entertainment Corp | 11,400,000 | 13.6% | EDGAR |
| SC 13G/A | 2023-02-13 | THUNDERBIRD PARTNERS LLP | Six Flags Entertainment Corp | 4,189,620 | 5.0% | EDGAR |
| SC 13G/A | 2023-02-09 | VANGUARD GROUP INC | Six Flags Entertainment Corp | 8,601,813 | 10.3% | EDGAR |
| SC 13G/A | 2023-01-23 | BlackRock Inc. | Six Flags Entertainment Corp | 10,206,009 | 12.3% | EDGAR |
| SC 13G | 2022-11-21 | THUNDERBIRD PARTNERS LLP | Six Flags Entertainment Corp | 4,186,252 | 5.0% | EDGAR |
| SC 13D/A | 2022-11-14 | H PARTNERS MANAGEMENT, LLC | Six Flags Entertainment Corp | 11,250,000 | 13.5% | EDGAR |
| SC 13D/A | 2022-08-15 | H PARTNERS MANAGEMENT, LLC | Six Flags Entertainment Corp | 10,000,000 | 12.0% | EDGAR |
| SC 13G/A | 2022-08-09 | BlackRock Inc. | Six Flags Entertainment Corp | 10,386,393 | 12.0% | EDGAR |
| SC 13G/A | 2022-06-09 | VANGUARD GROUP INC | Six Flags Entertainment Corp | 8,726,723 | 10.1% | EDGAR |
| SC 13G/A | 2022-02-10 | VANGUARD GROUP INC | Six Flags Entertainment Corp | 7,673,300 | 8.9% | EDGAR |
| SC 13G/A | 2022-02-01 | BlackRock Inc. | Six Flags Entertainment Corp | 6,590,174 | 7.7% | EDGAR |
| SC 13D/A | 2021-12-15 | H PARTNERS MANAGEMENT, LLC | Six Flags Entertainment Corp | 8,925,000 | 10.4% | EDGAR |
| SC 13D/A | 2021-08-23 | H PARTNERS MANAGEMENT, LLC | Six Flags Entertainment Corp | 7,900,000 | 9.2% | EDGAR |
| SC 13G/A | 2021-02-16 | Capital Research Global Investors | Six Flags Entertainment Corp | 0 | 0.0% | EDGAR |
| SC 13G/A | 2021-02-10 | VANGUARD GROUP INC | Six Flags Entertainment Corp | 7,093,264 | 8.4% | EDGAR |
| SC 13G/A | 2021-02-01 | BlackRock Inc. | Six Flags Entertainment Corp | 6,615,731 | 7.8% | EDGAR |
| SC 13G/A | 2020-08-07 | BlackRock Inc. | Six Flags Entertainment Corp | 8,476,395 | 10.0% | EDGAR |