The 4 Largest Holding Companies Are Now Involved in Federal 'Bid Rigging' Probe

WPP confirmed subpoena today

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The federal government's investigation into allegations of antitrust practices at major ad agencies has expanded to include WPP, the world's largest holding company.

WPP this morning released the following statement on its website: "WPP confirms that, similarly to Interpublic, Omnicom and Publicis, three of its subsidiaries have received subpoenas from the U.S. Department of Justice Antitrust Division concerning the Division's ongoing investigation of video production and post-production practices in the advertising industry. WPP and its subsidiaries are fully cooperating with the enquiries."

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