| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Beer Caroline Stark | Chief Business Officer | C/O SIONNA THERAPEUTICS, INC., 21 HICKORY DRIVE, SUITE 500, WALTHAM | Jennifer Fitzpatrick, Attorney-in-Fact | 03 Oct 2025 | 0002085679 |
No securities are beneficially owned.