| No. | Hedge Fund | Shares | Value | Activity | % Port |
|---|---|---|---|---|---|
| 1. | Tang Capital Management Kevin C. Tang | 11,065,662 | $35,299,462 | 1.36% | |
| 2. | Perceptive Advisors Joseph Edelman | 9,680,185 | $30,879,790 | +39% | 0.89% |
| 3. | OrbiMed Advisors Samuel Isaly | 8,461,500 | $26,992,185 | 0.63% | |
| 4. | Commodore Capital Egen Atkinson And Michael Kramarz | 7,692,300 | $24,538,437 | 1.2% | |
| 5. | Baker Bros. Advisors Julian Baker And Felix Baker | 4,250,826 | $13,560,135 | +23% | 0.1% |