Alan C. “Ace” Greenberg is Chairman of the Executive Committee of The Bear Stearns Companies Inc. He began work at Bear Stearns in 1949 as a clerk. He served as Chairman of the Board of Bear Stearns from 1985 to 2001, and as its CEO from 1978 to 1993. Greenberg serves also as a director of Bear Stearns and a non-executive director of Viacom. He is the author of Memos from the Chairman, which is a compilation of humorous but meaningful memos he issued to the associates of Bear Stears during his tenure as CEO.
On April 24, 2008, it was reported in Fortune that Greenberg agreed to join JPMorgan Chase & Co. as vice chairman of Bear’s retail business.
He is a champion bridge player, having won the Reisinger Board-a-Match Teams in 1977. He was second in the same tournament in 1981.
Greenberg is also a noted philanthropist, having donated millions of dollars to various causes. Alan Greenberg is married to Kathy Greenberg, the Board Chair of Cardozo Law School and the founder of the New York Legal Assistance Group.
Source - http://en.wikipedia.org/wiki/Alan_Greenberg