| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Caligan Partners LP | 9.99% | 6.5M | 0 | 6.5M | /s/ David Johnson | David Johnson, Managing Partner | 0001727492 |
| David Johnson | 9.99% | 6.5M | 0 | 6.5M | /s/ David Johnson | David Johnson, Individually | 0001785557 |