New York, NY - September 21, 2018 - Interpublic Group (NYSE: IPG) today announced that it has completed its registered public offering of $500 million aggregate principal amount of its 3.500% Senior Notes due 2020 (CUSIP Number 460690 BM1), $500 million aggregate principal amount of its 3.750% Senior Notes due 2021 (CUSIP Number 460690 BN9), $500 million aggregate principal amount of its 4.650% Senior Notes due 2028 (CUSIP Number 460690 BP4) and $500 million aggregate principal amount of its 5.400% Senior Notes due 2048 (CUSIP Number 460690 BQ2) (collectively, the "Notes"). The net proceeds were approximately $1.978 billion after discounts, commissions and estimated offering expenses. The Company plans to use the net proceeds from the offering, together with borrowings under its July 2018 term loan agreement, to fund the previously announced acquisition of the Marketing Solutions business of Acxiom Corporation, to repay certain outstanding commercial paper borrowings and for general corporate purposes. The acquisition is expected to close on or about October 1, 2018, subject to customary closing conditions.

About Interpublic

Interpublic is one of the world's leading organizations of advertising agencies and marketing services companies. Major global brands include Craft, FCB (Foote, Cone & Belding), FutureBrand, Golin, Huge, Initiative, Jack Morton, MAGNA, McCann, Momentum, MRM//McCann, MullenLowe Group, Octagon, R/GA, UM and Weber Shandwick. Other leading brands include Avrett Free Ginsberg, Campbell Ewald, Carmichael Lynch, Deutsch, Hill Holliday, ID Media and The Martin Agency. For more information, please visit www.interpublic.com.