| Top Institutional Holders |
|---|
| Holder | Shares | % Out | Value* | Reported |
|---|
| FMR, LLC | 6,137,027 | 9.77 | 16,631,343 | 31-Mar-2013 | | Essex Woodlands Health Ventures | 5,815,940 | 9.26 | 15,761,197 | 31-Mar-2013 | | Murphy, Michael R. | 4,195,771 | 6.68 | 11,370,539 | 31-Mar-2013 | | Farallon Capital Management LLC | 2,223,071 | 3.54 | 6,024,522 | 31-Mar-2013 | | Jay, Jeffrey R. | 1,601,463 | 2.55 | 4,339,964 | 31-Mar-2013 | | BlackRock Fund Advisors | 993,619 | 1.58 | 2,692,707 | 31-Mar-2013 | | Deutsche Bank Aktiengesellschaft | 752,764 | 1.20 | 2,039,990 | 31-Mar-2013 | | Kingdon Capital Management LLC | 748,628 | 1.19 | 2,028,781 | 31-Mar-2013 | | Vanguard Group, Inc. (The) | 738,098 | 1.18 | 2,000,245 | 31-Mar-2013 | | Wasatch Advisors Inc | 652,611 | 1.04 | 1,768,575 | 31-Mar-2013 |
|
| Holder | Shares | % Out | Value* | Reported |
|---|
| Fidelity Dividend Growth Fund | 2,193,986 | 3.49 | 5,945,702 | 31-Mar-2013 | | Fidelity Select Portfolios - Biotechnology | 1,607,800 | 2.56 | 4,357,138 | 31-Mar-2013 | | Satuit Capital U.S. Emerging Companies Fund | 674,400 | 1.07 | 1,436,472 | 31-Jan-2013 | | iShares Russell 2000 Index Fund | 634,649 | 1.01 | 1,719,898 | 31-Mar-2013 | | Wasatch Ultra Growth Fund | 453,946 | 0.72 | 1,057,694 | 31-Dec-2012 | | Vanguard Total Stock Market Index Fund | 410,009 | 0.65 | 955,320 | 31-Dec-2012 | | Variable Insurance Products Fund III-Balanced Portfolio | 384,298 | 0.61 | 1,041,447 | 31-Mar-2013 | | College Retirement Equities Fund-Stock Account | 313,071 | 0.50 | 729,455 | 31-Dec-2012 | | Fidelity Strategic Advisers Core Fund | 289,002 | 0.46 | 783,195 | 31-Mar-2013 | | Fidelity Advisor Dividend Growth Fund | 258,009 | 0.41 | 699,204 | 31-Mar-2013 |
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View Transactions for Insiders & Institutional Holders Value shown is computed using the security's price on the report date given. Currency in USD. |