Vanguard Group Inc One of the world's largest investment management companies

• Shareholder; percent stake: 1%

Texas Teachers Retirement System

• Shareholder; percent stake: 0%

TIAA Teachers Insurance and Annuity Association – College Retirement Equities Fund

• Shareholder; percent stake: 0%

Capital Research and Management Company Privately owned investment manager

• Shareholder; percent stake: 1%

Credit Suisse Group AG Swiss finance holding company

• Shareholder; percent stake: 0%

BlackRock, Inc. The world's largest asset manager

• Shareholder; percent stake: 1%

Northern Trust Corporation wealth management, asset servicing, asset management and banking to corporations, institutions, affluent families and individuals; based in Chicago

• Shareholder; percent stake: 0%

Goldman Sachs Asset Management hedge fund in New York, NY

• Shareholder

California Public Employees Retirement System Once a highly regarded organization with an international reputation for smart, ethical investing

• Shareholder; percent stake: 0%

First Pacific Company Ltd Hong Kong-based investment managemetn company

• Shareholder; percent stake: 50%

Owners