| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Fairmount Funds Management LLC | 6.3% | 3.71M | 0 | 3.71M | /s/ Peter Harwin | Peter Harwin, Managing Member | |
| Fairmount Healthcare Fund II L.P. | 6.3% | 3.71M | 0 | 3.71M | /s/ Peter Harwin | Peter Harwin, Managing Member | |
| Peter Harwin | 6.3% | 3.71M | 0 | 3.71M | /s/ Peter Harwin | Peter Harwin | |
| Tomas Kiselak | 6.3% | 3.71M | 0 | 3.71M | /s/ Tomas Kiselak | Tomas Kiselak |