| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Nantahala Capital Management, LLC | 8.36% | 4.51M | 0 | 4.51M | /s/ Taki Vasilakis | Taki Vasilakis / Chief Compliance Officer | |
| Wilmot B. Harkey | 8.36% | 4.51M | 0 | 4.51M | /s/ Wilmot B. Harkey | Wilmot B. Harkey | |
| Daniel Mack | 8.36% | 4.51M | 0 | 4.51M | /s/ Daniel Mack | Daniel Mack |