Omnicom Group Inc. (NYSE:OMC) Q1 2021 Earnings Conference Call April 20, 2021 8:30 AM ET Company Participants Joanne Trout - Chief Communications Officer John Wren - Chairman and Chief Executive Officer Phil Angelastro - Chief Financial Officer Conference Call Participants Alexia Quadrani - JPMorgan Julien Roch - Barclays Michael Nathanson - MoffettNathanson Steven Cahall - Wells Fargo Tim Nollen - Macquarie Operator Good morning, ladies and gentleman and welcome to the Omnicom First Quarter 2021 Earnings R ...