Ownership Summary

Top Holders
 Shares Held% O/SShare ChangeFiling Date
Fidelity Management & Research Company11,118,12714.259,54603/31/14
Kingdom Ridge Capital, L.L.C.6,700,0008.6-550,00003/31/14
The Vanguard Group, Inc.5,684,4557.3469,33403/31/14
The Boston Company Asset Management, LLC5,531,5967.11,191,61003/31/14
BlackRock Institutional Trust Company, N.A.3,938,2755.0149,25203/31/14
Ranger Investment Management, L.P.2,753,1203.544,85903/31/14
Driehaus Capital Management, LLC2,409,1643.11,113,02803/31/14
Wellington Management Company, LLP2,379,7003.11,626,18503/31/14
Columbus Circle Investors1,614,7282.1-1,961,91703/31/14
State Street Global Advisors (US)1,574,4102.0100,16303/31/14
Top Holders: Mutual Funds
 Shares% O/SShare ChangeFiling Date
Fidelity Growth Company Fund6,255,5528.0-41,15005/31/14
Dreyfus Opportunistic Small Cap Fund2,492,3003.29,96006/30/14
Fidelity Series Growth Company Fund1,457,0701.91,40005/31/14
Fidelity Advisor Growth Opportunities Fund1,394,6001.8005/31/14
Vanguard Small-Cap Index Fund1,346,1921.764,13806/30/14
Vanguard Total Stock Market Index Fund1,203,9711.572,31506/30/14
iShares Russell 2000 ETF1,041,0481.3-208,80605/31/14
Vanguard Small-Cap Growth Index Fund944,7051.2-23,45406/30/14
Vanguard Extended Market Index Fund720,8500.912,31206/30/14
Statens Pensjonsfond Utland593,1890.8131,47012/31/13
Ownership data based on most recent publicly available data according to Thomson Reuters.

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