OMNICOM GROUP INC. — Director's Dealing 2004

Apr 5, 2004

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OMNICOM GROUP INC (OMC)
CIK: 0000029989
Period of Report: 2004-04-01

Reporting Person: ROSENSHINE ALLEN (Chairman and CEO of BBDO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2004-04-01	Common Stock, $0.15 Par Value	M	75000	$12.9375	Acquired	302040	Direct
2004-04-01	Common Stock, $0.15 Par Value	S	75000	$80.1917	Disposed	227040	Direct
2004-04-01	Common Stock, $0.15 Par Value	S	300	$80.1917	Disposed	226740	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2004-04-01	Employee Stock Option (Right to Buy)	$12.9375	M	75000	Disposed	2005-03-03	Common Stock (75000)	Direct

Footnotes

F1: The Option vested 30% in 1996; 30% in 1997 and 40% in 1998.

F2: Not Applicable.