| No. | Hedge Fund | Shares | Value | Activity | % Port |
|---|---|---|---|---|---|
| 1. | Biotechnology Value Fund / BVF Inc Mark Lampert | 2,233,742 | $7,639,398 | 0.31% | |
| 2. | Nantahala Capital Management Wilmot B. Harkey And Daniel Mack | 2,228,350 | $7,620,957 | 0.26% | |
| 3. | Deep Track Capital David Kroin | 1,122,484 | $3,838,895 | 0.11% | |
| 4. | Stonepine Capital Timothy P. Lynch | 1,056,338 | $3,612,676 | 2.94% | |
| 5. | Kingdon Capital Mark Kingdon | 933,332 | $3,191,995 | +301% | 0.4% |