Six Flags Entertainment Corporation/NEW — All Filings
184 total filings on record
Public companies registered with the SEC are required to file periodic reports, disclosures, and notices throughout the year. The most important are the 10-K (annual report), 10-Q (quarterly report), and 8-K (material event notice). Use the filters below to narrow by form type.
All
10-K
10-K/A
10-Q
144
3
4
424B3
425
8-K
8-K/A
8-K12B
8-K12B/A
ARS
CORRESP
DEF 14A
EFFECT
S-4
S-4/A
S-8
SC 13D
SCHEDULE 13D/A
SCHEDULE 13G
SCHEDULE 13G/A
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SCHEDULE 13G/A | — | 0000102909-26-002251 | Mar 27, 2026 | — |
| 8-K | 8-K | 0001193125-26-124392 | Mar 25, 2026 | Mar 24, 2026 |
| 8-K | 8-K | 0001193125-26-106226 | Mar 13, 2026 | Mar 10, 2026 |
| 8-K | 8-K | 0001193125-26-092688 | Mar 5, 2026 | — |
| 10-K | ANNUAL REPORT ON FORM 10-K | 0001999001-26-000048 | Feb 26, 2026 | Dec 31, 2025 |
| 4 | FORM 4 | 0001999001-26-000043 | Feb 25, 2026 | Feb 23, 2026 |
| 4 | FORM 4 | 0001999001-26-000042 | Feb 25, 2026 | Feb 23, 2026 |
| 4 | FORM 4 | 0001999001-26-000041 | Feb 25, 2026 | Feb 23, 2026 |
| 4 | FORM 4 | 0001999001-26-000040 | Feb 25, 2026 | Feb 23, 2026 |
| 4 | FORM 4 | 0001999001-26-000039 | Feb 25, 2026 | Feb 23, 2026 |
| 4 | FORM 4 | 0001999001-26-000038 | Feb 25, 2026 | Feb 23, 2026 |
| 8-K | Q4 2025 EARNINGS RELEASE ON FORM 8-K | 0001999001-26-000022 | Feb 19, 2026 | — |
| SCHEDULE 13G/A | — | 0000935836-26-000085 | Feb 13, 2026 | — |
| 8-K | 8-K | 0001193125-26-021051 | Jan 23, 2026 | Jan 21, 2026 |
| 8-K | 8-K | 0001193125-26-012924 | Jan 14, 2026 | — |
| 4 | FORM 4 | 0001999001-26-000019 | Jan 6, 2026 | Jan 2, 2026 |
| 4 | FORM 4 | 0001999001-26-000018 | Jan 6, 2026 | Jan 2, 2026 |
| 4 | FORM 4 | 0001999001-26-000017 | Jan 6, 2026 | Jan 2, 2026 |
| 4 | FORM 4 | 0001999001-26-000016 | Jan 6, 2026 | Jan 2, 2026 |
| 4 | FORM 4 | 0001999001-26-000015 | Jan 6, 2026 | Jan 2, 2026 |
| 4 | FORM 4 | 0001999001-26-000014 | Jan 6, 2026 | Jan 2, 2026 |
| 4 | FORM 4 | 0001999001-26-000013 | Jan 6, 2026 | Jan 2, 2026 |
| 8-K | 8-K | 0001193125-26-003472 | Jan 6, 2026 | — |
| 8-K | 8-K | 0001193125-26-002779 | Jan 5, 2026 | — |
| 8-K | 8-K | 0001193125-26-002477 | Jan 5, 2026 | Dec 29, 2025 |
| 4 | FORM 4 | 0001999001-26-000005 | Jan 5, 2026 | Dec 31, 2025 |
| 4 | FORM 4 | 0001999001-26-000002 | Jan 5, 2026 | Dec 31, 2025 |
| 4 | FORM 4 | 0001999001-25-000183 | Dec 29, 2025 | Dec 24, 2025 |
| 8-K | 8-K | 0001193125-25-330990 | Dec 23, 2025 | Dec 17, 2025 |
| 4 | FORM 4 | 0001999001-25-000181 | Dec 9, 2025 | Dec 8, 2025 |
| 3 | FORM 3 | 0001999001-25-000180 | Dec 9, 2025 | Dec 8, 2025 |
| 4 | FORM 4 | 0001999001-25-000179 | Dec 9, 2025 | Dec 5, 2025 |
| 8-K | 8-K | 0001193125-25-293793 | Nov 24, 2025 | Nov 21, 2025 |
| 10-Q | 10-Q | 0001999001-25-000175 | Nov 7, 2025 | Sep 28, 2025 |
| 8-K | Q3 2025 EARNINGS RELEASE ON FORM 8-K | 0001999001-25-000171 | Nov 7, 2025 | — |
| 3 | OWNERSHIP DOCUMENT | 0001104659-25-102675 | Oct 27, 2025 | Oct 17, 2025 |
| 8-K | 8-K | 0001193125-25-242513 | Oct 17, 2025 | — |
| 8-K | 8-K | 0001193125-25-237126 | Oct 10, 2025 | — |
| 8-K | 8-K | 0001999001-25-000164 | Sep 12, 2025 | — |
| 4 | FORM 4 | 0001999001-25-000161 | Aug 25, 2025 | Aug 22, 2025 |
| 8-K/A | 8-K/A | 0001999001-25-000159 | Aug 22, 2025 | Jun 25, 2025 |
| SCHEDULE 13G/A | — | 0000935836-25-000523 | Aug 14, 2025 | — |
| 4 | FORM 4 | 0001999001-25-000156 | Aug 8, 2025 | Aug 7, 2025 |
| 10-Q | 10-Q | 0001999001-25-000154 | Aug 6, 2025 | Jun 29, 2025 |
| 8-K | 8-K | 0001193125-25-174048 | Aug 6, 2025 | — |
| 8-K | Q2 2025 EARNINGS RELEASE ON FORM 8-K | 0001999001-25-000152 | Aug 6, 2025 | — |
| 4 | FORM 4 | 0001999001-25-000147 | Jun 27, 2025 | Jun 25, 2025 |
| 3 | FORM 3 | 0001999001-25-000145 | Jun 27, 2025 | Jun 25, 2025 |
| 4 | FORM 4 | 0001999001-25-000143 | Jun 27, 2025 | Jun 25, 2025 |
| 4 | FORM 4 | 0001999001-25-000141 | Jun 27, 2025 | Jun 25, 2025 |