| Top Holders | Shares Held | % O/S | Filing Date | | BlackRock Financial Management, Inc. | 16,349,513 | 5.4 | 03/31/13 | | The Vanguard Group, Inc. | 12,020,433 | 4.0 | 03/31/13 | | Dimensional Fund Advisors, LP | 9,279,962 | 3.1 | 03/31/13 | | Pine River Capital Management, L.P. | 8,251,224 | 2.7 | 03/31/13 | | AQR Capital Management, LLC | 6,967,107 | 2.3 | 03/31/13 | | Munder Capital Management | 6,518,266 | 2.2 | 03/31/13 | | JP Morgan Asset Management | 5,887,123 | 1.9 | 03/31/13 | | Brenner West Capital Partners | 5,352,325 | 1.8 | 03/31/13 | | BlackRock Institutional Trust Company, N.A. | 5,280,421 | 1.7 | 03/31/13 | | Arrowstreet Capital, Limited Partnership | 4,776,882 | 1.6 | 03/31/13 | | State Street Global Advisors (US) | 4,590,131 | 1.5 | 03/31/13 | | Principal Global Investors (Equity) | 4,200,515 | 1.4 | 03/31/13 | | Knighthead Capital Management, LLC | 4,033,828 | 1.3 | 03/31/13 | | Wellington Management Company, LLP | 3,963,501 | 1.3 | 03/31/13 | | Paulson & Co. Inc. | 3,784,700 | 1.3 | 03/31/13 | | Numeric Investors LLC | 3,223,800 | 1.1 | 03/31/13 | | Citi Investment Research (US) | 3,174,459 | 1.1 | 03/31/13 | | UBS Securities LLC | 3,075,222 | 1.0 | 03/31/13 | | BMO Asset Management U.S. | 2,978,719 | 1.0 | 03/31/13 | | Red Rocks Capital LLC | 2,742,000 | 0.9 | 03/31/13 | | Schroder Investment Management Ltd. (SIM) | 2,720,900 | 0.9 | 03/31/13 | | TIAA-CREF | 2,647,985 | 0.9 | 03/31/13 | | Bank of America Merrill Lynch (US) | 2,349,022 | 0.8 | 03/31/13 | | Invesco PowerShares Capital Management LLC | 1,985,613 | 0.7 | 03/31/13 | | Mellon Capital Management Corporation | 1,896,066 | 0.6 | 03/31/13 | | Citadel Investment Group, L.L.C. | 1,807,912 | 0.6 | 03/31/13 | | D. E. Shaw & Co., L.P. | 1,683,828 | 0.6 | 03/31/13 | | Deutsche Asset Management Americas | 1,673,555 | 0.6 | 03/31/13 | | Harper (Philip R) | 1,411,500 | 0.5 | 03/01/13 | | BlackRock Asset Management Ireland Limited | 1,355,604 | 0.5 | 03/31/13 | | Alyeska Investment Group, L.P. | 1,325,000 | 0.4 | 03/31/13 | | Two Sigma Investments, LLC | 1,242,644 | 0.4 | 03/31/13 | | Credit Suisse Securities (USA) LLC | 1,074,962 | 0.4 | 03/31/13 | | FSI Group, LLC | 1,060,502 | 0.4 | 03/31/13 | | Marathon Asset Management, L.P. | 1,030,991 | 0.3 | 03/31/13 | | Redwood Capital Management, L.L.C. | 1,002,700 | 0.3 | 03/31/13 | | Susquehanna Financial Group, LLLP | 960,639 | 0.3 | 03/31/13 | | Morgan Stanley & Co. LLC | 948,668 | 0.3 | 03/31/13 | | Absolute Return Capital, LLC | 942,037 | 0.3 | 03/31/13 | | Advisors Asset Management, Inc. | 841,134 | 0.3 | 03/31/13 | | Ohio Public Employees Retirement System | 838,627 | 0.3 | 03/31/13 | | Cardinal Capital Management, L.L.C. | 809,200 | 0.3 | 03/31/13 | | Fidelity Management & Research Company | 806,606 | 0.3 | 03/31/13 | | Whitebox Advisors, L.L.C. | 780,464 | 0.3 | 03/31/13 | | Park West Asset Management LLC | 779,265 | 0.3 | 03/31/13 | | Lombard Odier Asset Management (USA) Corp. | 778,786 | 0.3 | 03/31/13 | | Northern Trust Investments, N.A. | 771,003 | 0.3 | 03/31/13 | | INTECH Investment Management LLC | 759,100 | 0.3 | 03/31/13 | | Millennium Management LLC | 749,367 | 0.3 | 03/31/13 | | Manulife Asset Management (US) LLC | 711,945 | 0.2 | 03/31/13 |
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