X0201 4 2003-11-03 0 0000029989 OMNICOM GROUP INC OMC 0001247250 DENISON SUSAN S 511 EAST 80TH STREET NEW YORK NY 10021 1 0 0 0 Common Stock Par Value $0.15 2003-11-03 4 P 0 500 79.97 A 5187 D Includes 250 shares awarded 05/21/03 pursuant to the Omnicom Group Inc. Restricted Stock Plan for Non-Employee Directors and which are subject to forfeiture, and 604 shares awarded on 1/14/03 pursuant to election by Director to receive portion of annual retainer in shares of Common Stock, pursuant to the 1998 Incentive Compensation Plan By: Barry J. Wagner, Attorney-in-Fact for Susan S. Denison 2003-11-03