| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Nantahala Capital Management, LLC | 5.6% | 2.63M | 0 | 2.63M | /s/ Taki Vasilakis | Taki Vasilakis / Chief Compliance Officer | |
| Wilmot B. Harkey | 5.6% | 2.63M | 0 | 2.63M | /s/ Wilmot B. Harkey | Wilmot B. Harkey / Manager | |
| Daniel Mack | 5.6% | 2.63M | 0 | 2.63M | /s/ Daniel Mack | Daniel Mack / Manager |