| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| RTW Investments, LP | 6.4% | 3,055,063 | 0 | 3,055,063 | /s/ Roderick Wong, M.D. | Roderick Wong, M.D., Managing Partner | |
| Roderick Wong | 6.4% | 3,055,063 | 0 | 3,055,063 | s/ Roderick Wong, M.D. | Roderick Wong, M.D. |