The Vanguard Group, Inc. State Street Global Advisors, Inc. FMR Co., Inc. BlackRock Institutional Trust Company, N.A. BlackRock Fund Advisors Northern Trust Investments, N.A. Mellon Capital Management Corporation Berkshire Hathaway, Inc. T. Rowe Price Associates, Inc. Geode Capital Management, LLC Goldman Sachs Asset Management, L.P. Invesco PowerShares Capital Management, Inc. Norges Bank Investment Management BlackRock Group Limited Merrill Lynch, Pierce, Fenner & Smith Inc. Capital World Investors J.P. Morgan Investment Management Inc. Morgan Stanley Smith Barney LLC Wellington Management Company, LLP Wells Fargo Advisors, LLC TIAA-CREF Investment Management, LLC Columbia Management Investment Advisers, LLC Jennison Associates, LLC Franklin Advisers, Inc. 