| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Octagon Capital Advisors LP | 3.3% | 9.07M | 0 | 9.07M | /s/ Ting Jia | Managing Member | |
| Octagon Investments Master Fund | 3.3% | 9.07M | 0 | 9.07M | /s/ Ting Jia | Managing Member, Octagon Investments GP, LLC, its general partner | |
| Ting Jia | 3.3% | 9.07M | 0 | 9.07M | /s/ Ting Jia | Ting Jia |