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Ronald A. Williams

Former Chairman and Chief Executive Officer, Aetna Inc.

With his long and distinguished career in the health care industry, from his experience leading one of Fortune’s Most Admired health care companies to his career-long role as an advocate for meaningful health care reform, Mr. Williams provides our Board with an exceptional combination of operational management expertise and insight into both public health care policy and the health care industry critical to a large public company in the health care industry.

Mr. Williams, 67, joined the Board of Directors in 2011 and is the Chairman of the Compensation & Benefits Committee and a member of the Nominating & Corporate Governance Committee. Mr. Williams served as Chairman and Chief Executive Officer of Aetna Inc. (managed care and health insurance) from 2006 to 2010, and as Chairman from 2010 until his retirement in April 2011. He is also an advisor to the private equity firm, Clayton, Dubilier & Rice, LLC. In addition, Mr. Williams also serves on the boards of MIT Corporation, Peterson Institute for International Economics, the Advisory Board of Peterson Center on Healthcare, and is Vice Chairman of the Board of Trustees of The Conference Board. Previously, Mr. Williams served on President Obama's Management Advisory Board from 2011 to January 2017, as Chairman of the Council for Affordable Quality Healthcare from 2007 to 2010, and Vice Chairman of The Business Council from 2008 to 2010.

Other Public Company Board Service: The Boeing Company (2010 to present), American Express Company (2007 to present), Envision Healthcare Holdings, Inc. (2011 to present)