Federal Judge Rejects DOJ Request to Break Up Google Ad Tech Business

A federal judge in Virginia ruled on September 2, 2026 that Google will not be forced to sell its advertising technology exchange, rejecting the Justice Department's request for structural breakup. U.S. District Judge Leonie Brinkema ordered behavioral remedies instead, requiring Google to change practices that depress ad rates for web publishers.

What was announced

Judge Leonie Brinkema of the U.S. District Court for the Eastern District of Virginia issued her ruling in the remedies phase of the ad tech antitrust case. The court declined to order divestiture of Google's AdX ad exchange, despite finding last year that Google illegally monopolized the online advertising auction technology that decides which ads appear on websites.

Lee-Anne Mulholland, VP of Regulatory Affairs at Google, published a statement on X saying: "We're very pleased the Court rejected the DOJ's proposal to break apart tools that help small businesses reach new customers and grow."

What changed

The Justice Department had argued that forcing Google to sell its ad exchange was the only way to curb its dominance and open the market to competition. The court rejected that structural remedy and instead accepted most of the behavioral changes proposed by both parties.

Google must now adopt changes including sharing more information with publishers about ad auctions and ending practices that depress ad rates. The ad exchange operates as a marketplace where publishers pay Google a fee to sell ads in real-time auctions when users load websites.

Details and availability

The ruling requires Google to implement conduct remedies rather than structural separation. The court granted most of the changes proposed by both the Justice Department and Google to the company's business practices. These changes focus on transparency and information sharing with publishers.

The ad exchange represents a small portion of Google's overall business, but the ruling carries symbolic weight as the second time Google has avoided divestiture after being found to have illegally maintained a monopoly.

Context

This case is separate from the search monopoly ruling, where Google was also found to have illegally maintained monopoly power. In that case, the court similarly declined to order structural breakup. The ad tech case specifically addresses the technology that runs programmatic advertising auctions on publisher websites, distinct from Google's search advertising business.

The behavioral remedies approach focuses on changing how Google operates rather than forcing asset sales. Publishers have long raised concerns about transparency in ad auctions and the fees charged by ad tech intermediaries.

What has not been confirmed

The court did not publicly release the full opinion, only previewing it in a short filing. The specific timeline for implementing the behavioral remedies has not been disclosed. The ruling does not address Google's search advertising business or its broader advertising technology stack beyond the ad exchange.

It remains unclear how the required changes will affect ad rates for publishers or competition in the programmatic advertising market.

Sources

• Lee-Anne Mulholland, VP Regulatory Affairs, Google. Public statement on X, September 2, 2026.
• The New York Times. "In a Big Win, Google Won't Have to Break Up Its Ad Tech Business, Court Rules." David McCabe & Tripp Mickle, September 2, 2026.
• Reuters. "Google escapes breakup of its advertising technology business." September 2, 2026.
• U.S. District Court for the Eastern District of Virginia. Case docket, Judge Leonie Brinkema presiding.