| No. | Hedge Fund | Shares | Value | Activity | % Port |
|---|---|---|---|---|---|
| 1. | VenBio Select Advisor Kurt Von Emster | 10,625,000 | $705,393,750 | -3% | 6.93% |
| 2. | Slate Path Capital David Greenspan | 2,523,500 | $167,535,165 | -50% | 2.26% |
| 3. | Baker Bros. Advisors Julian Baker And Felix Baker | 2,175,645 | $144,441,072 | +31% | 0.85% |
| 4. | Arrowstreet Capital Peter Rathjens, Bruce Clarke And John Campbell | 2,087,953 | $138,619,200 | +1% | 0.08% |
| 5. | Deerfield Management James E. Flynn | 1,832,946 | $121,689,285 | +85% | 1.55% |