| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| NANTAHALA CAPITAL PARTNERS LIMITED PARTNERSHIP | 6.2% | 810,630 | 0 | 810,630 | /s/ Taki Vasilakis | Taki Vasilakis / Chief Compliance Officer Nantahala Capital Management, LLC | |
| Wilmot B. Harkey | 6.2% | 810,630 | 0 | 810,630 | /s/ Wilmot B. Harkey | Wilmot B. Harkey / Manager | |
| Daniel Mack | 6.2% | 810,630 | 0 | 810,630 | /s/ Daniel Mack | Daniel Mack / Manager |