U.S. District Judge Leonie Brinkema of the Eastern District of Virginia issued the remedy decision Wednesday, following her 2025 ruling that Google unlawfully maintained monopolies in key markets for technology used by website publishers to sell digital advertising.
The Justice Department had sought structural remedies, including the divestiture of important advertising technology assets. Brinkema instead adopted behavioral remedies in modified form, preserving Google’s ownership of the business while requiring operational restrictions.
Judge Rejects Structural Breakup
The case concerns technology used to facilitate advertising on websites across the open web.
Google operates interconnected products that help publishers sell advertising, including its publisher ad server and AdX, an advertising exchange that facilitates real-time bidding for advertising space. The Justice Department argued that Google’s control across multiple parts of the system allowed it to disadvantage competitors and publishers.
In April 2025, Brinkema found that Google had illegally monopolized the publisher ad-server and ad-exchange markets and unlawfully tied its publisher ad server to AdX. The court concluded that Google’s conduct harmed competition in the open-web advertising market.
Wednesday’s ruling addresses the remedy for those violations rather than reconsidering the court’s earlier findings.
Behavioral Remedies Replace Divestiture
The most significant outcome of the decision was Brinkema’s refusal to order the structural breakup sought by the Justice Department.
Federal prosecutors had requested the divestiture of AdX and other remedies affecting Google’s advertising technology operations. The judge instead accepted most proposed conduct remedies in modified form.
The detailed opinion remains temporarily sealed while the parties review confidential information and proposed redactions, leaving some of the precise compliance requirements unavailable.
As a result, the immediate operational and financial consequences of the ruling cannot yet be fully measured. Google will retain the assets at the center of the case, but the company will face restrictions affecting aspects of how those systems interact with publishers and competing advertising technology.
Google Retains Key Advertising Assets
The ruling protects Alphabet, Google’s parent company, from the most disruptive outcome sought by the Justice Department.
A forced sale of AdX or other major advertising technology assets could have changed the structure of Google’s ad-tech business. Instead, Google retains ownership while facing measures intended to make the market more accessible to competitors.
Google welcomed the decision, saying the court had rejected the government’s proposal to break apart tools that help businesses reach customers.
The outcome represents a substantially different result from the structural relief sought by federal prosecutors, although Google’s operations will still be subject to court-ordered changes.
Government’s Earlier Antitrust Victory Remains
The ruling does not erase the Justice Department’s earlier success in establishing that Google had unlawfully maintained monopolies in important parts of the digital advertising market.
The department’s case focused on Google’s control of technologies used by website publishers to sell advertising. The remedy phase followed the court’s finding of anticompetitive conduct rather than a judgment in Google’s favor.
The government also secured operational changes intended to address competitive advantages associated with Google’s position across multiple layers of the advertising technology system.
Wider Implications for Digital Advertising
The decision could have implications beyond the immediate dispute between Google and the Justice Department.
If the court-ordered restrictions make it easier for rival advertising technology companies to compete, website publishers could gain additional options for selling advertising inventory. Advertisers could also encounter a different competitive environment when buying advertising across the open web.
The extent of those effects will depend on the final requirements and how they are implemented.
Final Compliance Details Remain Pending
The court has not yet publicly released the full operational framework governing Google’s compliance because the detailed opinion remains subject to review for confidential information and proposed redactions.
The final judgment process will determine the specific requirements Google must follow and the practical extent of the changes.
The outcome could materially affect competition in digital advertising if the restrictions substantially change how Google’s ad-tech products operate and interact with rivals and publishers. The practical effect will depend on the final terms and their enforcement.
Google Remains Under Broader Antitrust Scrutiny
The ad-tech case is one of several major antitrust challenges involving Google’s businesses.
Federal regulators have separately challenged Google’s position in online search, leading to another remedies dispute involving search distribution and related services.
Although the cases involve different markets and legal findings, they form part of broader U.S. antitrust scrutiny of the market power held by major technology companies.
For Google, Wednesday’s ruling avoids a forced breakup of its advertising technology business while leaving the company subject to court-ordered restrictions. The next stage will determine how significantly those requirements alter the competitive structure of the digital advertising market.
Reporting Credit: U.S. Department of Justice Antitrust Division; U.S. District Court for the Eastern District of Virginia. The Justice Department’s official case materials establish the antitrust findings and history of the government’s action against Google’s digital advertising technology business.
