Citadel Advisors LLC 13D and 13G filings for HMH Holding Inc. Class A Common Stock:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2026-04-09 4:23 pm Purchase | 2026-04-02 | 13G | HMH HLDG INC HMH | Citadel Advisors LLC | 665,938 6.300% | 665,938 (New Position) | Filing |