Quick Takeaways
- Empery Asset Management, LP filed SCHEDULE 13G/A for X4 Pharmaceuticals, Inc Common Stock, $0.001 par value per share (XFOR).
- Disclosed ownership: 10%.
- Date of event: 31 Dec 2025.
Empery Asset Management, LP - 31 Dec 2025 SCHEDULE 13G/A Report for X4 Pharmaceuticals, Inc Common Stock, $0.001 par value per share (XFOR)
- Filing Manager
- Empery Asset Management, LP
- Reporting Manager
- Empery Asset Management, LP
- Symbol
- XFOR
- Shares outstanding
- 90,529,469 shares
- Disclosed Ownership
- 9,043,894 shares
- Ownership
- 10%
- Form type
- SCHEDULE 13G/A
- Filing time
- 15 Jan 2026, 13:21:55 UTC
- Date of event
- 31 Dec 2025
- Previous filing
- 21 Oct 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"Empery Asset Management, LP disclosed 10% ownership in X4 Pharmaceuticals, Inc Common Stock, $0.001 par value per share (XFOR) on 31 Dec 2025."
What Changed
- Previous schedule filing date: 21 Oct 2025.
- Current filing was accepted on 15 Jan 2026, 13:21.
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 (2)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Empery Asset Management, LP | 10% | 9,043,894 | 0 | 9,043,894 | /s/ Ryan M. Lane | By: Ryan M. Lane, Authorized Signatory | |
| Ryan M. Lane | 10% | 9,043,894 | 0 | 9,043,894 | /s/ Ryan M. Lane | Ryan M. Lane, individually |