SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 31, 2002 ----------------- OMNICOM GROUP INC. ---------------------------------------------------- (Exact Name of Registrant as Specified in its Charter) New York ---------------------------------------------- (State or Other Jurisdiction of Incorporation) 1-10551 13-1514814 ---------------------- ---------------------------------- (Commission File Number) (I.R.S. Employer Identification No.) 437 Madison Avenue, New York, New York 10022 --------------------------------------------------- (Address of Principal Executive Offices) (Zip Code) (212) 415-3600 ---------------------------------------------------- (Registrant's Telephone Number, Including Area Code) Item 5. Other Events. This Current Report on Form 8-K is being filed to provide the information set forth in Omnicom's December 26, 2002 press release, a copy of which is filed as Exhibit 99.1 and incorporated herein by reference. In the release, Omnicom announced the addition of two additional outside directors to its Board of Directors and the resignation of one current director. The changes are effective December 31, 2002. SIGNATURES Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. OMNICOM GROUP INC. By: /s/ BARRY J. WAGNER ----------------------------- Barry J. Wagner Secretary and General Counsel Date: December 31, 2002 EXHIBIT INDEX Annex Description ----- ----------- 99.1 Omnicom's December 26, 2002 press release.