No. | Hedge Fund | Shares | Value | Activity | % Port |
---|---|---|---|---|---|
1. | Biotechnology Value Fund / BVF Inc Mark Lampert | 3,075,907 | $119,960,373 | -30% | 3.5% |
2. | 70,000,000 | $103,040,420 | 1.53% | ||
3. | Rock Springs Capital Management Kris Jenner, Gordon Bussard, Graham Mcphail | 1,580,488 | $61,639,032 | -11% | 2% |
4. | Citadel Investment Group Ken Griffin | 1,391,409 | $54,264,951 | -13% | 0.01% |
5. | Tang Capital Management Kevin C. Tang | 1,287,107 | $50,197,173 | 3.58% |