| 8.04 Data as of 3:56pm ET |  +0.104 / +1.31%Today’s Change | 1.55 Today|||52-Week Range 9.98 | +207.02% Year-to-Date |
| Other institutional | 50.94% |
| Individual stakeholders | 18.02% |
| Mutual fund holders | 16.09% |
| 3/31/2013 | DEERFIELD MANAGEMENT CO. LP Bought 7.7 Million shares of Keryx Biopharmaceuticals ... |
| 3/31/2013 | RA CAPITAL MANAGEMENT LLC Bought 4.6 Million shares of Keryx Biopharmaceuticals ... |
| 3/31/2013 | BLACKROCK ADVISORS LLC Bought 4.0 Million shares of Keryx Biopharmaceuticals ... |
| Stockholder | Stake | Shares owned | Total value ($) | Shares bought / sold | Total change |
|---|---|---|---|---|---|
| Deerfield Management Co. LP | 9.41% | 7,685,700 | 62,638,455 | +7,685,700 | -- |
| RA Capital Management LLC | 5.69% | 4,647,050 | 37,873,458 | +4,647,050 | -- |
| BlackRock Fund Advisors | 5.20% | 4,243,273 | 34,582,675 | +508,641 | +13.62% |
| BlackRock Advisors LLC | 4.97% | 4,057,085 | 33,065,243 | +4,010,098 | +8,534.48% |
| SSgA Funds Management, Inc. | 4.57% | 3,729,420 | 30,394,773 | +2,541,058 | +213.83% |
| The Vanguard Group, Inc. | 2.62% | 2,137,420 | 17,419,973 | +219,865 | +11.47% |
| VHCP Management LLC | 2.51% | 2,048,773 | 16,697,500 | -579,600 | -22.05% |
| Insight Capital Research & Manage... | 2.05% | 1,670,353 | 13,613,377 | +1,670,353 | -- |
| Franklin Advisers, Inc. | 1.99% | 1,627,000 | 13,260,050 | +1,627,000 | -- |
| Fidelity Management & Research Co... | 1.71% | 1,392,300 | 11,347,245 | +1,135,017 | +441.16% |
| Mutual fund | Stake | Shares owned | Total value ($) | Shares bought / sold | Total change |
|---|---|---|---|---|---|
| SPDR S&P Biotech ETF | 2.99% | 2,444,822 | 19,925,299 | +62,371 | +2.62% |
| iShares Russell 2000 Index Fund | 1.58% | 1,289,919 | 10,512,840 | -15,785 | -1.21% |
| Vanguard Total Stock Market Index... | 1.12% | 913,591 | 7,445,767 | +108,221 | +13.44% |
| Vanguard Extended Market Index Fu... | 1.01% | 829,299 | 6,758,787 | +19,290 | +2.38% |
| FTIF SICAV - Franklin Biotechnolo... | 0.85% | 690,000 | 5,623,500 | +690,000 | -- |
| Invesco Global Health Care Fund | 0.82% | 671,551 | 5,473,141 | +671,551 | -- |
| iShares Russell 2000 Growth Index... | 0.68% | 557,854 | 4,546,510 | -39,707 | -6.64% |
| PowerShares Dynamic Biotechnology... | 0.68% | 557,426 | 4,543,022 | 0 | 0.00% |
| H&Q Life Sciences Investors Fund | 0.45% | 369,296 | 3,009,762 | -123,098 | -25.00% |
| H&Q Healthcare Investors Fund | 0.45% | 367,784 | 2,997,440 | -122,595 | -25.00% |
.
