| Top Institutional Holders |
|---|
| Holder | Shares | % Out | Value* | Reported |
|---|
| Wasatch Advisors Inc | 1,781,711 | 7.01 | 32,979,470 | 31-Mar-2013 | | FMR LLC | 1,452,339 | 5.71 | 20,782,971 | 31-Dec-2012 | | JP Morgan Chase & Company | 1,443,659 | 5.68 | 26,722,128 | 31-Mar-2013 | | Orbimed Advisors LLC. | 1,285,000 | 5.05 | 23,785,350 | 31-Mar-2013 | | Federated Investors, Inc. | 1,010,170 | 3.97 | 18,698,246 | 31-Mar-2013 | | Vanguard Group, Inc. (The) | 749,250 | 2.95 | 13,868,617 | 31-Mar-2013 | | Fort Washington Investment Advisors, Inc. | 674,788 | 2.65 | 9,656,216 | 31-Dec-2012 | | BlackRock Fund Advisors | 621,846 | 2.45 | 11,510,369 | 31-Mar-2013 | | Jennison Associates LLC | 3,444,902 | 13.55 | 63,765,136 | 31-Mar-2013 | | Primecap Management Company | 2,839,232 | 11.17 | 48,948,359 | 28-Feb-2013 |
|
| Holder | Shares | % Out | Value* | Reported |
|---|
| Primecap Odyssey Aggressive Growth Fund | 2,390,000 | 9.40 | 44,238,900 | 31-Mar-2013 | | Fidelity Contrafund Inc | 1,027,387 | 4.04 | 19,016,933 | 31-Mar-2013 | | Prudential Jennison Small Company Fd | 981,973 | 3.86 | 18,176,320 | 31-Mar-2013 | | Wasatch Small Cap Growth Fund | 868,644 | 3.42 | 12,430,295 | 31-Dec-2012 | | Prudential Jennison Health Sciences Fd | 669,117 | 2.63 | 12,385,355 | 31-Mar-2013 | | JP Morgan Small Cap Growth Fund | 489,399 | 1.93 | 9,058,775 | 31-Mar-2013 | | iShares Russell 2000 Index Fund | 391,986 | 1.54 | 7,255,660 | 31-Mar-2013 | | Vanguard Small-Cap Index Fund | 343,645 | 1.35 | 4,917,559 | 31-Dec-2012 | | TCW Small Cap Growth Fund | 315,667 | 1.24 | 5,208,505 | 31-Jan-2013 | | Variable Insurance Products Fund II-Contrafund Portfolio | 312,345 | 1.23 | 5,781,505 | 31-Mar-2013 |
|
View Transactions for Insiders & Institutional Holders Value shown is computed using the security's price on the report date given. Currency in USD. |
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