| No. | Hedge Fund | Shares | Value | Activity | % Port |
|---|---|---|---|---|---|
| 1. | Biotechnology Value Fund / BVF Inc Mark Lampert | 7,133,720 | $86,032,663 | 2.74% | |
| 2. | RA Capital Management Peter Kolchinsky | 4,897,237 | $59,060,678 | 0.63% | |
| 3. | EcoR1 Capital Oleg Nodelman | 2,183,000 | $26,326,980 | -33% | 1.12% |
| 4. | Baker Bros. Advisors Julian Baker And Felix Baker | 1,102,106 | $13,291,398 | 0.08% | |
| 5. | Two Sigma Advisors John Overdeck And David Siegel | 805,421 | $9,713,377 | +59% | 0.01% |