Mr. Clark worked for Paine Webber from 1968 through 1981, at which time he joined American Express, eventually being appointed CFO in 1985. From 1990 through 1993, he served as Chairman and CEO of Shearson Lehman Brothers, Inc. He later served as Vice Chairman of Lehman Brothers from 1993 through 2008, and then as Vice Chairman of Barclays Capital from 2008 through 2011. He is currently on the board of directors for several public companies.