On May 3, 2004, CGI Group Inc. (TSX: GIB.A; NYSE: GIB) announced that its wholly-owned subsidiary, CGI Virginia Corporation ("CGI Virginia") was merged with and into American Management Systems, Incorporated (Nasdaq: AMSY), resulting in AMS becoming a wholly-owned subsidiary of CGI. CGI acquired AMS for a purchase price of approximately US$858 million and concurrently sold the U.S. assets of the Defense and Intelligence Group of AMS to CACI International Inc. for an aggregate consideration of US$415 million.

CGI was advised in this transaction by Jean-René Gauthier.