| No. | Hedge Fund | Shares | Value | Activity | % Port |
|---|---|---|---|---|---|
| 1. | Tang Capital Management Kevin C. Tang | 11,329,500 | $180,705,525 | 8.93% | |
| 2. | Arrowstreet Capital Peter Rathjens, Bruce Clarke And John Campbell | 3,387,194 | $54,025,744 | +1% | 0.03% |
| 3. | Renaissance Technologies Jim Simons | 1,590,135 | $25,362,653 | +10% | 0.04% |
| 4. | Marshall Wace LLP Paul Marshall And Ian Wace | 1,574,957 | $25,120,564 | +7% | 0.02% |
| 5. | D E Shaw D. E. Shaw | 1,532,273 | $24,439,755 | +69% | 0.01% |