Five of Campaign's global editors spoke on a panel at Campaign House in Cannes.
Bidon has been global chief executive at Nexus since April 2022.
The network is calling the solution the advertising industry’s 'first large marketing model'.
Mindshare, Wavemaker and EssenceMediacom will continue to provide clients with dedicated teams as brands within WPP Media.
The loss was fuelled by $203 million in costs for 'strategic restructuring actions'.
The group expects a 2% growth in organic net revenue compared with 2024.
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