| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Octagon Capital Advisors LP | 10% | 2,328,485 | 0 | 2,328,485 | /s/ Ting Jia | Managing Member | |
| Octagon Investments Master Fund LP | 10% | 2,328,485 | 0 | 2,328,485 | /s/ Ting Jia | Managing Member, Octagon Investments GP, LLC, its general partner | |
| Ting Jia | 10% | 2,328,485 | 0 | 2,328,485 | /s/ Ting Jia | Ting Jia |