OMNICOM GROUP INC. — Director's Dealing 2010

Mar 26, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: OMNICOM GROUP INC (OMC)
CIK: 0000029989
Period of Report: 2010-03-24

Reporting Person: Carroll Thomas (President & CEO TBWA Worldwide)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-03-24	Common Stock, par value $0.15 per share	M	25404	$31.175	Acquired	50495	Direct
2010-03-24	Common Stock, par value $0.15 per share	S	25404	$40.0025	Disposed	25091	Direct
2010-03-25	Common Stock, par value $0.15 per share	M	54596	$31.175	Acquired	79687	Direct
2010-03-25	Common Stock, par value $0.15 per share	S	54596	$40.00	Disposed	25091	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-03-24	Employee Stock Option (right to buy)	$31.175	M	25404	Disposed	2011-10-02	Common Stock (25404)	Direct
2010-03-25	Employee Stock Option (right to buy)	$31.175	M	54596	Disposed	2011-10-02	Common Stock (54596)	Direct

Footnotes

F1: Includes 5,420 shares acquired under Omnicom's employee stock purchase plan and 263 shares acquired pursuant to dividend
reinvestment program.

F2: The reported sale price reflects the weighted average price of multiple transactions on March 24, 2010. The actual sales
prices for the transactions ranged from $40.00 to $40.02.