OMNICOM GROUP INC. — Director's Dealing 2008

Feb 21, 2008

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OMNICOM GROUP INC (OMC)
CIK: 0000029989
Period of Report: 2008-02-15

Reporting Person: WREN JOHN (Director, President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2008-02-15	Common Stock, par value $0.15 per share	S	3400	$46.60	Disposed	986986	Direct
2008-02-15	Common Stock, par value $0.15 per share	S	2700	$46.61	Disposed	984286	Direct
2008-02-15	Common Stock, par value $0.15 per share	S	3900	$46.62	Disposed	980386	Direct
2008-02-15	Common Stock, par value $0.15 per share	S	4200	$46.63	Disposed	976186	Direct
2008-02-15	Common Stock, par value $0.15 per share	S	1700	$46.64	Disposed	974486	Direct
2008-02-15	Common Stock, par value $0.15 per share	S	13300	$46.65	Disposed	961186	Direct
2008-02-15	Common Stock, par value $0.15 per share	S	1600	$46.66	Disposed	959586	Direct
2008-02-15	Common Stock, par value $0.15 per share	S	3300	$46.67	Disposed	956286	Direct
2008-02-15	Common Stock, par value $0.15 per share	S	2400	$46.68	Disposed	953886	Direct
2008-02-15	Common Stock, par value $0.15 per share	S	2100	$46.69	Disposed	951786	Direct
2008-02-19	Common Stock, par value $0.15 per share	M	197400	$21.34	Acquired	1149186	Direct
2008-02-19	Common Stock, par value $0.15 per share	S	25300	$46.40	Disposed	1123886	Direct
2008-02-19	Common Stock, par value $0.15 per share	S	15700	$46.41	Disposed	1108186	Direct
2008-02-19	Common Stock, par value $0.15 per share	S	9600	$46.42	Disposed	1098586	Direct
2008-02-19	Common Stock, par value $0.15 per share	S	1700	$46.43	Disposed	1096886	Direct
2008-02-19	Common Stock, par value $0.15 per share	S	2900	$46.44	Disposed	1093986	Direct
2008-02-19	Common Stock, par value $0.15 per share	S	2000	$46.45	Disposed	1091986	Direct
2008-02-19	Common Stock, par value $0.15 per share	S	5300	$46.46	Disposed	1086686	Direct
2008-02-19	Common Stock, par value $0.15 per share	S	2800	$46.47	Disposed	1083886	Direct
2008-02-19	Common Stock, par value $0.15 per share	S	1700	$46.48	Disposed	1082186	Direct
2008-02-19	Common Stock, par value $0.15 per share	S	5600	$46.49	Disposed	1076586	Direct
2008-02-19	Common Stock, par value $0.15 per share	S	400	$46.50	Disposed	1076186	Direct
2008-02-19	Common Stock, par value $0.15 per share	S	2700	$46.51	Disposed	1073486	Direct
2008-02-19	Common Stock, par value $0.15 per share	S	2200	$46.52	Disposed	1071286	Direct
2008-02-19	Common Stock, par value $0.15 per share	S	4600	$46.53	Disposed	1066686	Direct
2008-02-19	Common Stock, par value $0.15 per share	S	100	$46.54	Disposed	1066586	Direct
2008-02-19	Common Stock, par value $0.15 per share	S	1200	$46.55	Disposed	1065386	Direct
2008-02-19	Common Stock, par value $0.15 per share	S	6000	$46.56	Disposed	1059386	Direct
2008-02-19	Common Stock, par value $0.15 per share	S	3200	$46.57	Disposed	1056186	Direct
2008-02-19	Common Stock, par value $0.15 per share	S	3000	$46.58	Disposed	1053186	Direct

Footnotes

F1: This is the second of three Forms 4 filed on February 20, 2008, to report three option exercises and associated sales because
all sales will not fit on one Form 4.