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SCHEDULE 13G/A
SCHEDULE 13G/A0001104659-26-015354·Nantahala Capital Management, LLC
Schedule 13G ownership disclosure
X4 Pharmaceuticals Inc
Common Stock, par value $0.001 per share · CUSIP: 98420X202
Event date: 2025-12-31
Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.
- Filing-level shares
- Unavailable
- Percent of class
- Unavailable
- Nantahala Capital Management, LLC
Shares: 2,449,468.00 · Class: 2.80%
- Wilmot B. Harkey
Shares: 2,449,468.00 · Class: 2.80%
- Daniel Mack
Shares: 2,449,468.00 · Class: 2.80%
Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.
Source: SEC EDGAR filingFiling metadata
- Accession number
- 0001104659-26-015354
- Form type
- SCHEDULE 13G/A
- Filer
- Nantahala Capital Management, LLC
- CIK
- CIK 1472322
- Filed
- Feb 13, 2026
- Reporting period
- Dec 31, 2025
- Description
- Schedule 13G beneficial ownership