Matt Seiler Steps Down as Head of IPG Mediabrands

Global COO succeeds him as CEO

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Interpublic Group has named a new head of its IPG Mediabrands division, which oversees media agencies such as Initiative and UM.

Matt Seiler, the CEO since 2011, is stepping down, effective May 1, and Henry Tajer, the unit's global COO, is succeeding him. Seiler will stick around as chairman but leave at the end of the year.

Tajer, who's also CEO of IPG Mediabrands in Australia, is based in Sydney and will move to New York to take the top job.

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