FMR LLC 13D and 13G filings for X4 Pharmaceuticals, Inc.:
- 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 |
| 2026-02-05 2:07 pm Unchanged | 2025-10-31 | 13G | X4 PHARMACEUTICALS INC XFOR | FMR LLC | 8,499,100 9.700% | 0 (Unchanged) | Filing |
| 2025-11-07 11:13 am Purchase | 2025-10-31 | 13G | X4 PHARMACEUTICALS INC XFOR | FMR LLC | 8,499,100 14.800% | 8,471,857 (+31097.37%) | Filing |