Overview

• PubMatic filed its complaint Monday in the U.S. District Court for the Eastern District of Virginia, marking the second recent ad‑exchange suit after OpenX’s August case.
• The company alleges Google’s conduct limited publisher monetization, raised advertiser costs, and reduced consumer choice, echoing claims made in ongoing federal antitrust proceedings.
• In April, a federal judge found Google had illegally monopolized the markets for ad exchanges and publisher ad servers, clearing the case for a remedies phase.
• On September 5, the DOJ urged an immediate selloff of Google’s AdX and broader interoperability with rivals, while Google countered that divestiture is unnecessary and offered interoperability plus a three‑year monitor.
• A remedies trial is scheduled for September 22 in Virginia, as Google also faces state-led litigation and publisher and advertiser damages suits pending in New York.