Six Flags Entertainment Corporation/new
An amusement park company that runs dozens of theme and water parks across the United States, known for record-breaking roller coasters and DC superhero-themed lands and rides. It began with Six Flags Over Texas, opened in 1961 near Dallas by developer Angus Wynne Jr. after a visit to Disneyland. The name honors the six nations that once ruled Texas—Spain, France, Mexico, the Republic of Texas, the Confederacy, and the United States—and the original park split into themed sections for each.
Limited partnership depositary units — Merged with Six Flags (July 1, 2024)
| Holder | Schedule | % of class | Shares | Filed |
|---|---|---|---|---|
| Darlington Partners Capital Management, LP | 13G/APassive | 7.5% | 7.70M | Aug 14, 2026 |
| Darlington Partners GP, LLC | 13G/APassive | 7.5% | 7.70M | Aug 14, 2026 |
| Darlington Partners, L.P. | 13G/APassive | 7.5% | 7.70M | Aug 14, 2026 |
| Scott W. Clark | 13G/APassive | 7.5% | 7.70M | Aug 14, 2026 |
| Ramsey B. Jishi | 13G/APassive | 7.5% | 7.70M | Aug 14, 2026 |
| BlackRock, Inc. | 13G/APassive | 14.4% | 14.73M | Jul 30, 2026 |
| Morgan Stanley | 13G/APassive | 5.4% | 5.51M | May 12, 2026 |
| Morgan Stanley Capital Services LLC | 13G/APassive | 5.3% | 5.37M | May 12, 2026 |
| Vanguard Portfolio Management | 13GPassive | 5.11% | 5.21M | Apr 29, 2026 |
| The Vanguard Group | 13G/APassive | 0% | 0 | Mar 27, 2026 |