| No. | Hedge Fund | Shares | Value | Activity | % Port |
|---|---|---|---|---|---|
| 1. | Opaleye Management James A. Silverman | 2,860,000 | $70,584,800 | 9.3% | |
| 2. | EcoR1 Capital Oleg Nodelman | 2,171,938 | $53,603,430 | +7% | 2.27% |
| 3. | Nantahala Capital Management Wilmot B. Harkey And Daniel Mack | 1,175,951 | $29,022,471 | 1.07% | |
| 4. | Cannell Capital J. Carlo Cannell | 341,985 | $8,440,190 | +58% | 5.18% |
| 5. | Springbok Capital Gavin Saitowitz And Cisco J. Del Valle | 188,802 | $4,659,633 | +317% | 0.36% |