Jamie Dimon served as a member of the Board of the ... He famously became a protégé of legendary finance executive Sandy Weill when Dimon wrote a thesis about the older financier.

(CNN) — Here is a look at the life of Jamie Dimon, chairman and CEO of JPMorgan Chase & Co. 1982-1985 – Assistant to Sandy Weill, president of American Express. 1996-1997 – Chairman and CEO ...