| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| BROADWOOD PARTNERS, L.P. | 24.3% | 57,455,729 | 0 | 57,455,729 | /s/ Neal C. Bradsher* | Neal C. Bradsher/President of Broadwood Capital, Inc. | 0001278386 |
| BROADWOOD CAPITAL, INC. | 24.3% | 57,455,729 | 0 | 57,455,729 | /s/ Neal C. Bradsher* | Neal C. Bradsher/President | 0001278387 |
| NEAL C. BRADSHER | 24.5% | 57,848,357 | 392,628 | 57,455,729 | /s/ Neal C. Bradsher* | Neal C. Bradsher | 0001278388 |