| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Perceptive Advisors LLC | 13% | 11,969,079 | 0 | 11,969,079 | /s/ Joseph Edelman | Joseph Edelman, Managing Member | 0001224962 |
| Joseph Edelman | 13% | 11,969,079 | 0 | 11,969,079 | /s/ Joseph Edelman | Joseph Edelman | 0001164426 |
| Perceptive Life Sciences Master Fund, Ltd. | 13% | 11,895,972 | 0 | 11,895,972 | /s/ Joseph Edelman | Joseph Edelman, Managing Member | 0001249675 |
| Perceptive Xontogeny Venture Fund, LP | 0.1% | 73,107 | 0 | 73,107 | /s/ Joseph Edelman | Joseph Edelman, Managing Member | 0001757940 |