Owner Name Date Shared Held
FMR LLC 09/30/2015 6,122,912 . PEMBROKE MANAGEMENT, LTD 09/30/2015 3,927,915 CAPITAL WORLD INVESTORS 09/30/2015 2,602,000 VANGUARD GROUP INC 09/30/2015 2,531,005 DIMENSIONAL FUND ADVISORS LP 09/30/2015 2,282,821 BANK OF MONTREAL /CAN/ 09/30/2015 1,746,832 BLACKROCK INSTITUTIONAL TRUST COMPANY, N.A. 09/30/2015 1,061,279 BLACKROCK FUND ADVISORS 09/30/2015 1,010,682 POLAR ASSET MANAGEMENT PARTNERS INC. 09/30/2015 992,300 . GOLDMAN CAPITAL MANAGEMENT INC 09/30/2015 726,000 COLUMBIA PARTNERS L L C INVESTMENT MANAGEMENT 09/30/2015 721,527 STATE STREET CORP 09/30/2015 681,719 RICE HALL JAMES & ASSOCIATES, LLC 09/30/2015 601,959 MORGAN STANLEY 09/30/2015 559,348 EMERALD ADVISERS INC/PA 12/31/2015 539,737 NORTHERN TRUST CORP 09/30/2015 430,731 KALMAR INVESTMENTS INC /DE/ 09/30/2015 383,410 BANK OF NEW YORK MELLON CORP 09/30/2015 373,379 CORTINA ASSET MANAGEMENT, LLC 09/30/2015 351,310 TIAA CREF INVESTMENT MANAGEMENT LLC 09/30/2015 259,391 GEODE CAPITAL MANAGEMENT, LLC 09/30/2015 237,979 WALL STREET ASSOCIATES 09/30/2015 213,040 ) NEXT CENTURY GROWTH INVESTORS LLC 09/30/2015 202,327 INVESCO LTD. 09/30/2015 183,511 BLACKROCK GROUP LTD 09/30/2015 180,483 WADDELL & REED FINANCIAL INC 09/30/2015 166,100 RENAISSANCE TECHNOLOGIES LLC 09/30/2015 165,919 BLACKROCK INVESTMENT MANAGEMENT, LLC 09/30/2015 156,719 D. E. SHAW & CO., INC. 09/30/2015 145,613 BRUCE & CO., INC. 09/30/2015 140,000
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