| No. | Hedge Fund | Shares | Value | Activity | % Port |
|---|---|---|---|---|---|
| 1. | Tang Capital Management Kevin C. Tang | 1,550,000 | $28,504,500 | 1.29% | |
| 2. | Perceptive Advisors Joseph Edelman | 1,000,000 | $18,390,000 | 0.28% | |
| 3. | Soleus Capital Guy Levy | 1,000,000 | $18,390,000 | 0.63% | |
| 4. | Iridian Asset Management David Cohen And Harold Levy | 777,078 | $14,290,464 | +20% | 4.91% |
| 5. | Sphera Global Healthcare Fund Doron Breen And Mori Arkin | 382,945 | $7,042,359 | 0.92% |