| No. | Hedge Fund | Shares | Value | Activity | % Port |
|---|---|---|---|---|---|
| 1. | Tang Capital Management Kevin C. Tang | 12,229,500 | $181,241,190 | +8% | 9.2% |
| 2. | Two Sigma Advisors John Overdeck And David Siegel | 3,428,705 | $50,813,408 | +163% | 0.04% |
| 3. | Arrowstreet Capital Peter Rathjens, Bruce Clarke And John Campbell | 3,284,368 | $48,674,334 | -4% | 0.03% |
| 4. | Marshall Wace LLP Paul Marshall And Ian Wace | 1,874,597 | $27,781,530 | +20% | 0.03% |
| 5. | Renaissance Technologies Jim Simons | 1,663,835 | $24,658,035 | +5% | 0.04% |