| No. | Hedge Fund | Shares | Value | Activity | % Port |
|---|---|---|---|---|---|
| 1. | Biotechnology Value Fund / BVF Inc Mark Lampert | 1,276,595 | $72,638,256 | 2.94% | |
| 2. | Farallon Capital Thomas Steyer | 791,000 | $45,007,900 | 0.18% | |
| 3. | Millennium Management Israel Englander | 545,994 | $31,067,059 | -16% | 0.01% |
| 4. | Nantahala Capital Management Wilmot B. Harkey And Daniel Mack | 418,522 | $23,813,902 | -42% | 0.83% |
| 5. | Citadel Investment Group Ken Griffin | 361,073 | $20,545,053 | 0% |