| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| EcoR1 Capital, LLC | 9.9% | 1.44M | 0 | 1.44M | /s/ Oleg Nodelman | Manager | |
| Oleg Nodelman | 9.9% | 1.44M | 0 | 1.44M | /s/ Oleg Nodelman | Reporting person | |
| EcoR1 Capital Fund Qualified, L.P. | 8.6% | 1.25M | 0 | 1.25M | /s/ Oleg Nodelman | Manager of the General Partner, EcoR1 Capital, LLC |