| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| RTW Investments, LP | 8.7% | 6,221,054 | 0 | 6,221,054 | /s/ Roderick Wong, M.D. | Roderick Wong, M.D., Managing Partner | |
| Roderick Wong | 8.7% | 6,221,054 | 0 | 6,221,054 | s/ Roderick Wong, M.D. | Roderick Wong, M.D. |