PERCEPTIVE ADVISORS 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 |
| 2026-05-15 4:00 pm Purchase | 2026-03-31 | 13G | X4 PHARMACEUTICALS INC XFOR | PERCEPTIVE ADVISORS LLC | 6,889,163 7.300% | 824,483 (+13.59%) | Filing |
| 2025-11-03 4:09 pm Purchase | 2025-10-27 | 13G | X4 PHARMACEUTICALS INC XFOR | PERCEPTIVE ADVISORS LLC | 6,064,680 7.600% | 6,064,680 (New Position) | Filing |