| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| RTW Investments, LP | 9.99% | 277,797 | 0 | 277,797 | /s/ Roderick Wong, M.D. | Managing Partner | 0001493215 |
| Roderick Wong, M.D. | 9.99% | 277,797 | 0 | 277,797 | /s/ Roderick Wong, M.D. | Roderick Wong, M.D. |