Its AI positioning has led to new business from blue chips, the group said.
Changes made as FMCG giant in midst of global media review, management restructure and cost-cutting drive.
Group forecasting full-year organic growth of 1%, a downgrade on its previous forecast.
Deal agreed by boards of Informa and Ascential but subject to regulatory and shareholder approval.
Jenner will remain as Wavemaker global chief executive.
Organic revenue was up 2.4% in Japan.
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