Barrett was hired in June by Ross Levinsohn, interim chief executive, prior to the appoitment of Marissa Mayer as chief executive. He is responsible for Yahoo's ad revenue and operations in the Americas, EMEA and APAC regions.
Barrett joined Yahoo from Google’s Admeld, where he was chief executive. He has also worked with Levinsohn at Fox Interactive Media.
According to several US reports, Barrett’s departure, which has been touted since Levinsohn left the business, became more certain when Mayer appointed Google executive Henrique de Castro as its new chief operating officer this week, with sales moving into his remit.
Yahoo said it could not confirm his departure.Follow @shearmans