Guillaume Epstein.
WPP has hired former Publicis Groupe senior vice president Guillaume Epstein to be global head of commercial, AdNews can confirm.
He joins from digital strategy firm Valtech but he spent more than a decade at Publicis in finance roles in Europe and Singapore.
WPP is in the middle of a restructure, slashing costs, shedding jobs and seeking to return to growth in 2027 after a series of client losses.
The advertising group, once the world’s largest, posted full year 2025 revenue of £13.55 billion, down 8.1% on a reported basis and down 3.6% like-for-like.
Staff now number 99,000 after an 8% cut last year. More jobs are expected to go this year with GBP 500 million in savings planned.
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