| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| KIRSKE DAVID | Chief Financial Officer | C/O X4 PHARMACEUTICALS INC., 61 N BEACON STREET, 4TH FLOOR, BOSTON | /s/ Brian Bowersox, Attorney-In-Fact | 14 Aug 2025 | 0001276750 |
No securities are beneficially owned.
Exhibit List: Exhibit 24 Power of Attorney