| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| ORBIMED ADVISORS LLC | 8% | 510,000 | 0 | 510,000 | /s/ Carl L. Gordon | Carl L. Gordon/Member | |
| ORBIMED CAPITAL LLC | 1.4% | 90,000 | 90,000 | 0 | /s/ Carl L. Gordon | Carl L. Gordon/Member |