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Pop-art comic illustration of three suited holding company executives walking away from a Trade Desk Koa Agent terminal while a Stagwell exec signs a contract at it

Stagwell Volunteered for Trade Desk's Koa Beta. Three Holdcos Already Quit.

Stagwell announced on April 21, 2026 that it will become the first global marketing network to adopt Koa Agents, The Trade Desk's new agentic AI for media planning and buying. The announcement landed roughly two months after WPP and Dentsu quietly exited Trade Desk's OpenPath product,
NMS Editorial Team 28 Apr 2026, 9:36 AM
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