OMNICOM GROUP INC. — Director's Dealing 2008

Apr 2, 2008

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OMNICOM GROUP INC (OMC)
CIK: 0000029989
Period of Report: 2008-03-28

Reporting Person: Brymer Charles E (President & CEO DDB Worldwide)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2008-03-28	Common Stock, par value $0.15 per share	S	1800	$44.30	Disposed	46235	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	900	$44.31	Disposed	45335	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	1800	$44.34	Disposed	43535	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	1900	$44.36	Disposed	41635	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	1000	$44.37	Disposed	40635	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	2172	$44.38	Disposed	38463	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	900	$44.39	Disposed	37563	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	2700	$44.40	Disposed	34863	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	900	$44.41	Disposed	33963	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	1200	$44.42	Disposed	32763	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	1000	$44.43	Disposed	31763	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	1000	$44.44	Disposed	30763	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	1200	$44.45	Disposed	29563	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	1900	$44.46	Disposed	27663	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	700	$44.47	Disposed	26963	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	1200	$44.48	Disposed	25763	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	700	$44.49	Disposed	25063	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	500	$44.50	Disposed	24563	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	200	$44.51	Disposed	24363	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	600	$44.52	Disposed	23763	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	700	$44.53	Disposed	23063	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	700	$44.54	Disposed	22363	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	1300	$44.55	Disposed	21063	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	300	$44.56	Disposed	20763	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	800	$44.57	Disposed	19963	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	900	$44.58	Disposed	19063	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	600	$44.59	Disposed	18463	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	300	$44.60	Disposed	18163	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	200	$44.62	Disposed	17963	Direct
2008-03-28	Common Stock, par value $0.15 per share	S	300	$44.63	Disposed	17663	Direct

Footnotes

F1: This is the first of two Forms 4 filed on April 1, 2008, to report sales of shares because all sales will not fit on one Form
4.

F2: This includes 1,942 shares acquired under Omnicom's employee stock purchase plan.