Google scored a significant legal victory Wednesday after a federal judge declined to order the company to sell a key part of its digital advertising technology business, rejecting one of the most aggressive remedies sought by U.S. antitrust regulators.
U.S. District Judge Leonie Brinkema in Alexandria, Virginia, rejected the Justice Department’s request to force Google to divest AdX, the company’s advertising exchange used to conduct real-time auctions for online advertising.
Instead of breaking up the business, the court opted for behavioral remedies designed to change how Google operates parts of its advertising technology ecosystem.
The complete details of those requirements are expected to become clearer when the court releases its more detailed ruling following a period for confidential information to be reviewed and redacted.
Why Google Was Facing a Possible Breakup
The dispute stems from a major antitrust case brought by the U.S. Department of Justice and a coalition of states.
The government sued Google in 2023, alleging that the technology giant had monopolized important parts of the digital advertising infrastructure used by websites to sell advertising space.
The case focuses on technology operating largely behind the scenes of the internet. Publishers use ad servers to manage advertising inventory, while ad exchanges connect buyers and sellers through automated auctions that can occur almost instantly when a webpage loads.
In April 2025, Brinkema ruled that Google had illegally monopolized markets involving publisher ad servers and advertising exchanges. The court found that Google’s practices had damaged competition in those markets.
That decision moved the case into its remedies phase, where the government sought significant changes to Google’s business.
Justice Department Wanted Google to Sell AdX
Among the government’s most consequential proposals was requiring Google to sell AdX.
The Justice Department argued that structural changes were necessary to restore competition after the earlier monopoly ruling. Google opposed a forced sale and argued that separating its advertising products would be technically difficult and potentially disruptive to customers.
The judge ultimately stopped short of ordering that breakup.
Instead, she accepted behavioral remedies, meaning Google will have to modify aspects of how the affected advertising systems operate while retaining ownership of AdX.
What the Decision Means for Google
Avoiding a forced sale is significant for Google even though AdX represents only one part of Alphabet’s much larger advertising operation.
More broadly, the ruling demonstrates the difficulty U.S. regulators have faced when asking courts to dismantle major technology businesses after winning antitrust cases.
Google previously avoided another proposed divestiture in a separate antitrust dispute involving its search business, when a judge declined to require the company to sell its Chrome browser.
For readers who use Google’s browser, BriefTop also has a practical guide explaining how to clear the cache in Chrome.
The latest decision does not erase the earlier finding that Google violated antitrust law in the ad-tech case. Instead, it determines how the court intends to address those violations.
What Happens Next?
The exact impact on publishers, advertisers and competing advertising technology companies will depend heavily on the final details of the remedies.
The court’s more detailed ruling is expected after confidential portions have been reviewed for redaction. Reuters reported that the judge plans to release that decision in approximately two weeks.
The case could also continue through appeals.
For publishers and advertisers, the most important question will be whether the required changes make it easier for competing advertising technologies to interact with Google’s systems and compete for business.
For Google, however, Wednesday’s immediate outcome is clear: one of the most severe possibilities is off the table for now.
The company can keep AdX.
