| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Nantahala Capital Management, LLC | 7.8% | 644,686 | 0 | 644,686 | /s/ Taki Vasilakis | Taki Vasilakis/Chief Compliance Officer | 0001472322 |
| Wilmot B. Harkey | 7.8% | 644,686 | 0 | 644,686 | /s/ Wilmot B. Harkey | Wilmot B. Harkey/Manager | |
| Daniel Mack | 7.8% | 644,686 | 0 | 644,686 | /s/ Daniel Mack | Daniel Mack/Manager |