| No. | Hedge Fund | Shares | Value | Activity | % Port |
|---|---|---|---|---|---|
| 1. | Paradigm Biocapital Advisors Senai Asefaw | 13,133,131 | $360,767,109 | +65% | 6.76% |
| 2. | Orbis Investment Management William B. Gray | 11,368,161 | $312,283,383 | -13% | 1.07% |
| 3. | Deerfield Management James E. Flynn | 6,865,000 | $188,581,550 | +179% | 1.97% |
| 4. | Deep Track Capital David Kroin | 5,650,000 | $155,205,500 | +55% | 2.26% |
| 5. | Arrowstreet Capital Peter Rathjens, Bruce Clarke And John Campbell | 4,975,324 | $136,672,150 | 0.06% |