CopperSteel HoldCo, Inc.
SEC Filing List
CIK: 0001999001
| Form | Description | Owner/Filer | Filing Agent | Date | Actions |
|---|---|---|---|---|---|
| SCHEDULE 13G/A | SHARTSIS FRIESE LLP /fa | 08/14/2026 | |||
| 4 | Statement of changes in beneficial owner... | Reilly John T | Reilly John T /fa | 08/12/2026 | |
| 8-K | Current report filing | Six Flags Entertainment Corporation/new | 08/06/2026 | ||
| 10-Q | Quarterly report pursuant to Section 13 ... | Six Flags Entertainment Corporation/new | 08/06/2026 | ||
| 10-Q | Quarterly report pursuant to Section 13 ... | Six Flags Entertainment Corporation/new | 08/06/2026 | ||
| 4 | Statement of changes in beneficial owner... | Bennett Christopher Lawrence | Six Flags Entertainment Corporation/new | 07/31/2026 | |
| 4 | Statement of changes in beneficial owner... | Hoffman David R. | Six Flags Entertainment Corporation/new | 07/31/2026 | |
| 4 | Statement of changes in beneficial owner... | Walia Ashok | Six Flags Entertainment Corporation/new | 07/31/2026 | |
| SCHEDULE 13G/A | 07/30/2026 | ||||
| 3 | Initial statement of beneficial ownershi... | Pauls Mark | Six Flags Entertainment Corporation/new | 07/17/2026 | |
| No record found. | |||||
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