| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Octagon Capital Advisors LP | 8.6% | 19,576,054 | 0 | 19,576,054 | /s/ Ting Jia | Managing Member | |
| Octagon Investments Master Fund | 8.6% | 19,576,054 | 0 | 19,576,054 | /s/ Ting Jia | Managing Member, Octagon Investments GP, LLC, its general partner | |
| Ting Jia | 8.6% | 19,576,054 | 0 | 19,576,054 | /s/ Ting Jia | Ting Jia |