Quick Takeaways
- Nantahala Capital Management, LLC filed SCHEDULE 13G for X4 PHARMACEUTICALS, INC Common Stock, par value $0.001 per share (XFOR).
- Disclosed ownership: 10%.
- Date of event: 30 Sep 2025.
Nantahala Capital Management, LLC - 30 Sep 2025 SCHEDULE 13G Report for X4 PHARMACEUTICALS, INC Common Stock, par value $0.001 per share (XFOR)
- Filing Manager
- Nantahala Capital Management, LLC
- Reporting Manager
- Nantahala Capital Management, LLC
- Symbol
- XFOR
- Shares outstanding
- 22,465,656 shares
- Disclosed Ownership
- 2,244,319 shares
- Ownership
- 10%
- Form type
- SCHEDULE 13G
- Filing time
- 14 Nov 2025, 16:39:54 UTC
- Date of event
- 30 Sep 2025
- Next filing
- 13 Feb 2026
- SEC
- View on sec.gov
Quoteable Key Fact
"Nantahala Capital Management, LLC disclosed 10% ownership in X4 PHARMACEUTICALS, INC Common Stock, par value $0.001 per share (XFOR) on 30 Sep 2025."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 14 Nov 2025, 16:39.
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.
Source Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (3)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Nantahala Capital Management, LLC | 10% | 2,244,319 | 0 | 2,244,319 | /s/ Taki Vasilakis | Taki Vasilakis / Chief Compliance Officer | |
| Wilmot B. Harkey | 10% | 2,244,319 | 0 | 2,244,319 | /s/ Wilmot B. Harkey | Wilmot B. Harkey | |
| Daniel Mack | 10% | 2,244,319 | 0 | 2,244,319 | /s/ Daniel Mack | Daniel Mack |