Wall Street Journal – Martin Sorrell is the ultimate dealmaker. He went on a global acquisition spree over three decades to build the world’s largest advertising company, WPPWPP 1.87%

The stock decline has left Sorrell vulnerable, said Greg Paull, co-founder of R3, a consulting firm that helps match advertisers with agencies. “I wouldn’t be surprised if someone like private equity comes in and takes a shot at it,” he said.

A sale would mark an ironic twist for Sorrell because he “is usually the one leading the way in the acquisition space,” Paull said.

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