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WPP’s media investment arm GroupM has hired Kirk McDonald as its new North America CEO, nearly nine months after the role was vacated by Tim Castree. Since then, global CEO Christian Juhl had assumed the responsibilities of that role on an interim basis.
McDonald most recently served as interim head of AT&T’s ad-tech unit Xandr following the unexpected departure of former Xandr CEO Brian Lesser in March—making McDonald the second top leader to exit the company this year.
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