Ros Allison.
Ros Allison has departed her role as head of product and innovation at IPG Mediabrands, the latest senior figure to leave following Omnicom's takeover.
Allison confirmed the news via LinkedIn, describing it as "the end of an era" after seven years at the agency.
"Being part of the IPG Mediabrands and MAGNA Global team has been a genuine privilege,” she wrote.
“I'm so proud of the results we drove, the change we created and the capability we've built for the Omnicom future."
Her departure follows a significant wave of senior exits since Omnicom closed its US$13 billion acquisition of IPG in November.
IPG Mediabrands Australia CEO Mark Coad, APAC CEO Leigh Terry and Magna managing director Lucy Formosa Morgan all left shortly after the deal was finalised.
UM Australia CEO Anathea Ruys followed in early February, with Omnicom appointing Essencemediacom managing director Stephanie Douglas-Neal as her replacement.
Earlier this week UM also reinstated the managing director role for its Sydney office less than a year after making it redundant.
Omnicom has been contacted for comment.
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