| Top Institutional Holders |
|---|
| Holder | Shares | % Out | Value* | Reported |
|---|
| FMR, LLC | 5,890,874 | 6.29 | 190,216,321 | 2013-03-31 | | Vanguard Group, Inc. (The) | 5,418,688 | 5.78 | 174,969,435 | 2013-03-31 | | Wells Fargo & Company | 3,918,202 | 4.18 | 126,518,742 | 2013-03-31 | | Alkeon Capital Management LLC | 3,661,184 | 3.91 | 118,219,631 | 2013-03-31 | | AllianceBernstein, L.P. | 3,380,107 | 3.61 | 109,143,655 | 2013-03-31 | | BlackRock Institutional Trust Company, N.A. | 3,257,547 | 3.48 | 105,186,192 | 2013-03-31 | | Invesco Ltd. | 2,984,951 | 3.19 | 96,384,067 | 2013-03-31 | | BlackRock Fund Advisors | 2,557,562 | 2.73 | 82,583,676 | 2013-03-31 | | Allianz Asset Management AG | 2,246,020 | 2.40 | 72,523,985 | 2013-03-31 | | Waddell & Reed Financial Inc. | 10,831,407 | 11.56 | 349,746,132 | 2013-03-31 |
|
| Holder | Shares | % Out | Value* | Reported |
|---|
| Waddell & Reed Advisors Funds-Science & Technology Fund | 5,732,860 | 6.12 | 185,114,049 | 2013-03-31 | | Ivy Science & Technology Fund | 4,291,047 | 4.58 | 138,557,907 | 2013-03-31 | | iShares Russell 2000 Index Fund | 1,478,498 | 1.58 | 45,064,619 | 2013-04-30 | | Advantage Advisers Xanthus Fund, LLC | 1,423,400 | 1.52 | 45,961,586 | 2013-03-31 | | Vanguard Small-Cap Index Fund | 1,392,576 | 1.49 | 44,966,279 | 2013-03-31 | | Fidelity Mid-Cap Stock Fund | 1,382,200 | 1.47 | 42,129,456 | 2013-04-30 | | Vanguard Total Stock Market Index Fund | 1,299,748 | 1.39 | 41,968,862 | 2013-03-31 | | Wells Fargo Advantage Discovery Fd | 1,294,000 | 1.38 | 39,441,120 | 2013-04-30 | | Vanguard Small-Cap Growth Index Fund | 1,120,751 | 1.20 | 36,189,049 | 2013-03-31 | | Fidelity Small Cap Growth Fund | 1,092,200 | 1.17 | 33,421,320 | 2013-01-31 |
|
View Transactions for Insiders & Institutional Holders Value shown is computed using the security's price on the report date given. Currency in USD. |
0.21(0.71%) Jun 18, 4:00PM EDT