| No. | Hedge Fund | Shares | Value | Activity | % Port |
|---|---|---|---|---|---|
| 1. | Matrix Capital Management David Goel And Paul Ferri | 13,959,973 | $21,079,559 | 19.75% | |
| 2. | Renaissance Technologies Jim Simons | 2,325,355 | $3,511,286 | +53% | 0% |
| 3. | Citadel Investment Group Ken Griffin | 2,077,290 | $3,136,708 | +350% | 0% |
| 4. | Tang Capital Management Kevin C. Tang | 1,550,000 | $2,340,500 | 0.09% | |
| 5. | Two Sigma Advisors John Overdeck And David Siegel | 1,461,200 | $2,206,412 | +15% | 0% |