| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Caligan Partners LP | 9.95% | 1.44M | 0 | 1.44M | /s/ David Johnson | David Johnson, Managing Partner | 0001727492 |
| David Johnson | 9.95% | 1.44M | 0 | 1.44M | /s/ David Johnson | David Johnson, individually | 0001785557 |