| | Shares Held | % O/S | Share Change | Filing Date | | Fidelity Management & Research Company | 58,439,033 | 4.8 | 8,351,628 | 03/31/13 | | The Vanguard Group, Inc. | 56,833,385 | 4.6 | 486,092 | 03/31/13 | | State Street Global Advisors (US) | 51,313,093 | 4.2 | -435,702 | 03/31/13 | | Wellington Management Company, LLP | 49,941,523 | 4.1 | 2,366,794 | 03/31/13 | | BlackRock Institutional Trust Company, N.A. | 47,628,896 | 3.9 | 1,081,644 | 03/31/13 | | Davis Selected Advisers, L.P. | 42,927,207 | 3.5 | -6,111,060 | 03/31/13 | | MFS Investment Management | 20,623,055 | 1.7 | 2,409,592 | 03/31/13 | | Aberdeen Asset Managers Ltd. | 20,598,287 | 1.7 | -142,490 | 03/31/13 | | Franklin Mutual Advisers, LLC | 18,939,695 | 1.6 | 116,580 | 03/31/13 | | Capital Research Global Investors | 18,780,000 | 1.5 | 0 | 03/31/13 |
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