| Top Institutional Holders |
|---|
| Holder | Shares | % Out | Value* | Reported |
|---|
| Vanguard Group, Inc. (The) | 5,935,892 | 5.61 | 703,937,432 | 2013-03-31 | | State Street Corporation | 3,820,933 | 3.61 | 453,124,444 | 2013-03-31 | | JP Morgan Chase & Company | 3,814,085 | 3.60 | 452,312,340 | 2013-03-31 | | Brown Advisory Inc. | 3,153,884 | 2.98 | 374,019,103 | 2013-03-31 | | Pennant Capital Management, LLC | 2,716,972 | 2.57 | 322,205,709 | 2013-03-31 | | FMR, LLC | 2,453,715 | 2.32 | 290,986,061 | 2013-03-31 | | BlackRock Institutional Trust Company, N.A. | 2,361,001 | 2.23 | 279,991,108 | 2013-03-31 | | JANUS CAPITAL MANAGEMENT, LLC | 2,240,880 | 2.12 | 265,745,959 | 2013-03-31 | | Berkshire Hathaway, Inc | 14,973,906 | 14.15 | 1,775,755,512 | 2013-03-31 | | Lone Pine Capital, LLC | 1,989,505 | 1.88 | 235,935,397 | 2013-03-31 |
|
| Holder | Shares | % Out | Value* | Reported |
|---|
| Prudential Jennison Mid-Cap Growth Fd | 1,439,071 | 1.36 | 170,659,429 | 2013-03-31 | | Vanguard Total Stock Market Index Fund | 1,318,709 | 1.25 | 145,756,905 | 2012-12-31 | | Vanguard Mid-Cap Index Fund | 1,288,468 | 1.22 | 142,414,368 | 2012-12-31 | | Artisan Mid-Cap Fund | 872,800 | 0.82 | 103,505,352 | 2013-03-31 | | SPDR S&P 500 ETF Trust | 788,524 | 0.75 | 93,511,061 | 2013-03-31 | | Vanguard 500 Index Fund | 778,594 | 0.74 | 86,057,994 | 2012-12-31 | | Vanguard Institutional Index Fund-Institutional Index Fund | 768,142 | 0.73 | 84,902,735 | 2012-12-31 | | Fidelity Contrafund Inc | 734,674 | 0.69 | 87,124,989 | 2013-03-31 | | Munder Mid-Cap Core Growth Fund | 701,550 | 0.66 | 77,542,321 | 2012-12-31 | | Managers AMG Funds-Timessquare Mid Cap Growth Fund | 643,400 | 0.61 | 76,963,508 | 2013-02-28 |
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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. |