Breakdown % of Shares Held by All Insider and 5% Owners: 8% % of Shares Held by Institutional & Mutual Fund Owners: 17% % of Float Held by Institutional & Mutual Fund Owners: 19% Number of Institutions Holding Shares: 67
Major Direct Holders (Forms 3 & 4) Holder Shares Reported HUNTER ROBERT MERRILL 7,243,557 Jan 17, 2013 CERRONE GABRIEL N/A Oct 29, 2013 JACOB GARY S 314,786 Jan 17, 2013 BRANCACCIO JOHN P 20,444 Jan 17, 2013 DENOYER BERNARD 7,500 Jun 21, 2013
Top Mutual Fund Holders Holder Shares % Out Value* Reported Fidelity Select Portfolios - Biotechnology 2,411,172 2.67 9,741,134 Oct 31, 2013 iShares Russell 2000 Index Fund 1,394,249 1.55 5,632,765 Oct 31, 2013 Vanguard Small-Cap Index Fund 1,300,343 1.44 5,942,567 Sep 30, 2013 Vanguard Total Stock Market Index Fund 1,137,242 1.26 5,197,195 Sep 30, 2013 iShares NASDAQ Biotechnology Index Fund 983,766 1.09 3,974,414 Oct 31, 2013 Vanguard Small Cap Value Index Fund 670,384 0.74 3,063,654 Sep 30, 2013 Vanguard Extended Market Index Fund 648,895 0.72 2,965,450 Sep 30, 2013 iShares Russell 2000 Growth Index Fund 612,007 0.68 2,472,508 Oct 31, 2013 Fidelity Small Cap Growth Fund 381,824 0.42 1,542,568 Oct 31, 2013 College Retirement Equities Fund-Stock Account 319,809 0.35 1,461,527 Sep 30, 2013