| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Vivo Capital VIII, LLC | 1.9% | 1,361,236 | 0 | 1,361,236 | /s/ Dr. Frank Kung | Dr. Frank Kung, Managing Member | 0001618789 |
| Vivo Capital IX, LLC | 6.3% | 4,541,764 | 0 | 4,541,764 | /s/ Dr. Frank Kung | Dr. Frank Kung, Managing Member |