Joseph M. Zubretsky became Senior Executive Vice President and Chief Financial Officer on November 29, 2010, having served as Executive Vice President and Chief Financial Officer since April 20, 2007, and Executive Vice President, Finance since February 28, 2007. Mr. Zubretsky has also served as the Companys Chief Enterprise Risk Officer since April 27, 2007. Prior to joining Aetna, Mr. Zubretsky served as Senior Executive Vice President for Finance, Investments and Corporate Development at UnumProvident Corporation, a position he assumed in March 2005.

Mark T. Bertolini became Chief Executive Officer on November 29, 2010 and continues to serve as President, having held that position since July 24, 2007. Mr. Bertolini is expected to become Aetnas Chairman upon Mr. Williams retirement in April 2011. Mr. Bertolini was elected to our Board on November 29, 2010. Prior to becoming President, Mr. Bertolini served as Executive Vice President and Head of Business Operations from May 3, 2006 to July 24, 2007. Before that, Mr. Bertolini served as Executive Vice President, Regional Businesses from February 1, 2006, and as Senior Vice President, Regional Businesses from September 2005 to February 1, 2006. On February 25, 2011, the Board of Directors of Aetna Inc. elected Mark T. Bertolini, Chairman of the Board and Chairman of the Boards Executive Committee, each effective April 8, 2011, upon the retirement of Ronald A. Williams, Aetnas current executive Chairman.

William J. Casazza became Senior Vice President and General Counsel on September 6, 2005. Mr. Casazza also served as Corporate Secretary from October 2000 to January 27, 2006. He served as Senior Vice President and Deputy General Counsel from July 6, 2004 to September 6, 2005. Prior to that, he served as Vice President and Deputy General Counsel from December 2000 to July 6, 2004.

Ronald A. Williams serves as Aetnas Chairman, having held that position since October 1, 2006. Mr. Williams served as Chief Executive Officer from February 14, 2006 to November 29, 2010, and served as President from May 27, 2002 to July 24, 2007. Mr. Williams will retire from Aetna and our Board in April 2011. Mr. Williams is a director of American Express Company (financial services) and The Boeing Company (leading manufacturer of commercial airplanes) and is a trustee of The Conference Board and the Connecticut Science Center Board. He also serves on the Massachusetts Institute of Technology North American Executive Board. He served as chairman of the Council for Affordable Quality Healthcare from 2007 to 2010, and served as vice chairman of The Business Council from 2008 to 2010. On February 25, 2011, Aetna announced that Mr. Williams retirement would be effective April 8, 2011.

Lonny Reisman, M.D., became Senior Vice President and Chief Medical Officer on November 12, 2008, having served as Chief Executive Officer and as a director of ActiveHealth Management, Inc. since October, 1998.

Margaret M. McCarthy became Executive Vice President, Operations and Technology on November 29, 2010, having served as Chief Information Officer and Senior Vice President Innovation, Technology and Service Operations since January 1, 2010. She also served as Chief Information Officer and Senior Vice President of Procurement and Real Estate from January 30, 2008 to December 31, 2009. Before that, Ms. McCarthy was Senior Vice President and Chief Information Officer from June 3, 2005 to January 29, 2008.