| No. | Hedge Fund | Shares | Value | Activity | % Port |
|---|---|---|---|---|---|
| 1. | RA Capital Management Peter Kolchinsky | 8,641,031 | $623,277,566 | 6.39% | |
| 2. | Balyasny Asset Management Dmitry Balyasny | 6,040,590 | $435,707,757 | 0.55% | |
| 3. | Pentwater Capital Management Matthew Halbower | 6,026,500 | $434,691,445 | 2.29% | |
| 4. | VenBio Select Advisor Kurt Von Emster | 5,455,000 | $393,469,150 | -29% | 3.87% |
| 5. | HBK Investments David Costen Haley | 4,365,000 | $314,847,450 | 2.47% |