John J. Mack is a Senior Advisor of both Morgan Stanley and KKR. He retired as Chairman of the Board of Morgan Stanley at the end of 2011 and also served as Chief Executive Officer of Morgan Stanley from June 2005 until December 2009.
John first joined Morgan Stanley in 1972 as a bond trader, rose steadily to manage the firm’s fixed income division from 1985 to 1992, served as the company’s CEO from 2005 to 2010, and as chairman from 2005 to 2011. He is credited for steering Morgan Stanley through the financial crisis, maintaining the firm’s independence and overseeing the firm’s conversion to a bank holding company. Before rejoining Morgan Stanley as Chairman and CEO in June 2005, he served as Co-Chief Executive Officer of Credit Suisse Group and Chief Executive Officer of Credit Suisse First Boston.