Exhibit 4.3 Execution Version FIRST SUPPLEMENTAL INDENTURE This FIRST SUPPLEMENTAL INDENTURE (the "Supplemental Indenture") dated as of February 13, 2004 among OMNICOM GROUP INC., a New York corporation (the "Company"), OMNICOM CAPITAL INC., a...First Supplemental Indenture • February 13th, 2004 • Omnicom Capital Inc • Services-advertising agencies • New York
TRUSTEEIndenture • February 13th, 2004 • Omnicom Capital Inc • Services-advertising agencies • New York
