| Top Institutional Holders |
|---|
| Holder | Shares | % Out | Value* | Reported |
|---|
| Price (T.Rowe) Associates Inc | 29,398,004 | 9.30 | 656,163,449 | Dec 31, 2012 | | FMR LLC | 14,955,806 | 4.73 | 333,813,589 | Dec 31, 2012 | | Vanguard Group, Inc. (The) | 12,376,660 | 3.91 | 249,760,998 | Mar 31, 2013 | | Ameriprise Financial, Inc. | 11,852,538 | 3.75 | 264,548,648 | Dec 31, 2012 | | Primecap Management Company | 10,227,210 | 3.23 | 228,271,327 | Dec 31, 2012 | | Franklin Resources, Inc | 9,838,747 | 3.11 | 198,545,914 | Mar 31, 2013 | | Allianz Asset Management AG | 6,444,359 | 2.04 | 143,838,092 | Dec 31, 2012 | | Warburg Pincus LLC | 56,566,492 | 17.89 | 1,262,564,101 | Dec 31, 2012 | | BlackRock Institutional Trust Company, N.A. | 5,990,553 | 1.89 | 120,889,359 | Mar 31, 2013 | | Invesco Ltd. | 5,183,885 | 1.64 | 115,704,313 | Dec 31, 2012 |
|
| Holder | Shares | % Out | Value* | Reported |
|---|
| Columbia Fds Ser Tr II-Columbia Seligman Communications & In | 8,950,100 | 2.83 | 164,771,341 | Feb 28, 2013 | | Price (T.Rowe) Mid Cap Growth Fund | 7,250,000 | 2.29 | 161,820,000 | Dec 31, 2012 | | Aston/Fairpointe Mid Cap Fund | 4,223,900 | 1.34 | 85,238,302 | Mar 31, 2013 | | Price (T.Rowe) Growth Stock Fund Inc. | 3,734,700 | 1.18 | 83,358,504 | Dec 31, 2012 | | Vanguard Total Stock Market Index Fund | 3,293,810 | 1.04 | 73,517,839 | Dec 31, 2012 | | Vanguard Mid-Cap Index Fund | 3,217,085 | 1.02 | 71,805,337 | Dec 31, 2012 | | Powershares Exhg Traded Fd Tr-Powershares QQQ Tr, Series 1 | 3,069,309 | 0.97 | 61,938,655 | Mar 31, 2013 | | Price (T.Rowe) New America Growth Fund | 2,825,000 | 0.89 | 63,054,000 | Dec 31, 2012 | | Franklin Strategic Series-Franklin Small-Mid Cap Growth | 2,300,000 | 0.73 | 46,414,000 | Mar 31, 2013 | | Fidelity Series All Sector Equity Fund | 2,262,600 | 0.72 | 41,654,466 | Feb 28, 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. |