Quick Takeaways
- PERCEPTIVE ADVISORS LLC filed SCHEDULE 13G for X4 PHARMACEUTICALS, INC. Common Stock, par value $0.001 per share (XFOR).
- Disclosed ownership: 7.6%.
- Date of event: 27 Oct 2025.
PERCEPTIVE ADVISORS LLC - 27 Oct 2025 SCHEDULE 13G Report for X4 PHARMACEUTICALS, INC. Common Stock, par value $0.001 per share (XFOR)
- Filing Manager
- PERCEPTIVE ADVISORS LLC
- Reporting Manager
- Perceptive Advisors LLC
- Symbol
- XFOR
- Shares outstanding
- 79,798,421 shares
- Disclosed Ownership
- 6,064,680 shares
- Ownership
- 7.6%
- Form type
- SCHEDULE 13G
- Filing time
- 03 Nov 2025, 16:09:43 UTC
- Date of event
- 27 Oct 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"PERCEPTIVE ADVISORS LLC disclosed 7.6% ownership in X4 PHARMACEUTICALS, INC. Common Stock, par value $0.001 per share (XFOR) on 27 Oct 2025."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 03 Nov 2025, 16:09.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Official SEC Source
Backed by Schedule 13D/13G
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
See Original FilingReporting Managers (3)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Perceptive Advisors LLC | 7.6% | 6,064,680 | 0 | 6,064,680 | /s/ Joseph Edelman | Joseph Edelman, Managing Member | |
| Joseph Edelman | 7.6% | 6,064,680 | 0 | 6,064,680 | /s/ Joseph Edelman | Joseph Edelman | |
| Perceptive Life Sciences Master Fund, Ltd. | 7.6% | 6,064,680 | 0 | 6,064,680 | /s/ Joseph Edelman | Joseph Edelman, Managing Member |