Omnicom Elevates Christine Gambino to CEO of Omni Platform

Flywheel CEO Alex McCord Assumes Leadership of Omnicom Commerce Duncan Painter Steps Down to Pursue UK-Based Opportunity NEW YORK, May 4, 2026 /PRNewswire/ -- Omnicom (NYSE: OMC), the world's leading marketing and sales company, today announced it has elevated Christine Gambino to Chief Executive Officer of Omni, effective immediately. She succeeds Duncan Painter, who is stepping down to pursue a senior executive opportunity in the United Kingdom, his home country.