| No. | Hedge Fund | Shares | Value | Activity | % Port |
|---|---|---|---|---|---|
| 1. | Tang Capital Management Kevin C. Tang | 2,628,538 | $91,236,554 | +15% | 4.51% |
| 2. | Baker Bros. Advisors Julian Baker And Felix Baker | 2,322,656 | $80,619,390 | 0.47% | |
| 3. | Deep Track Capital David Kroin | 2,003,978 | $69,558,076 | +12% | 1.24% |
| 4. | Biotechnology Value Fund / BVF Inc Mark Lampert | 1,488,975 | $50,293,922 | -6% | 1.69% |
| 5. | Armistice Capital Steven Boyd | 1,098,000 | $38,111,580 | +34% | 0.45% |