OMNICOM GROUP INC. — Director's Dealing 2008

Sep 26, 2008

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OMNICOM GROUP INC (OMC)
CIK: 0000029989
Period of Report: 2008-09-24

Reporting Person: WEISENBURGER RANDALL J (Executive Vice President & CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2008-09-24	Common Stock, par value $0.15 per share	S	100	$39.25	Disposed	424908	Direct
2008-09-24	Common Stock, par value $0.15 per share	S	2900	$39.27	Disposed	422008	Direct
2008-09-24	Common Stock, par value $0.15 per share	S	200	$39.28	Disposed	421808	Direct
2008-09-24	Common Stock, par value $0.15 per share	S	100	$39.29	Disposed	421708	Direct
2008-09-24	Common Stock, par value $0.15 per share	S	1200	$39.35	Disposed	420508	Direct
2008-09-24	Common Stock, par value $0.15 per share	S	1100	$39.36	Disposed	419408	Direct
2008-09-24	Common Stock, par value $0.15 per share	S	4700	$39.37	Disposed	414708	Direct
2008-09-24	Common Stock, par value $0.15 per share	S	100	$39.38	Disposed	414608	Direct
2008-09-24	Common Stock, par value $0.15 per share	S	1200	$39.42	Disposed	413408	Direct
2008-09-24	Common Stock, par value $0.15 per share	S	2600	$39.44	Disposed	410808	Direct
2008-09-24	Common Stock, par value $0.15 per share	S	604	$39.52	Disposed	410204	Direct
2008-09-24	Common Stock, par value $0.15 per share	S	1000	$39.53	Disposed	409204	Direct
2008-09-24	Common Stock, par value $0.15 per share	S	4100	$39.55	Disposed	405104	Direct
2008-09-24	Common Stock, par value $0.15 per share	S	200	$39.58	Disposed	404904	Direct
2008-09-24	Common Stock, par value $0.15 per share	S	2100	$39.59	Disposed	402804	Direct
2008-09-25	Common Stock, par value $0.15 per share	M	44496	$19.875	Acquired	447300	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, par value $0.15 per share	1459	Indirect

Footnotes

F1: This is the second of two Forms 4 filed on September 26, 2008, to report two option exercises and associated sales because
all sales will not fit on one Form 4.