Google US antitrust trials: A timeline

Google’s dominance in the search arena has given rise to two major antitrust lawsuits from the US government alleging the company has manipulated the market to maintain that dominance, to the exclusion of competitors and the detriment of the public at large. The first lawsuit, targeting Google’s search business, kicked off in mid-September 2023 and drew to a close in May 2024; US District Judge Amit Mehta ruled against the tech giant in August 2024. The remedy phase of the trial ended in September 2025 with Judge Mehta rejecting the DOJ’s request to break up the company, instead imposing data-sharing requirements. The second trial against the tech giant, focused on advertising, took place over 15 days in September 2024, with US District Judge Leonie Brinkema ruling against Google in April 2025. In September 2026, Judge Brinkema ruled that Google is not required to break off its ad exchange, instead opting for behavioral changes that have yet to be revealed publicly. The cases heavily echo the turn-of-the-century Microsoft antitrust case in several respects, most notably that Google, like Microsoft before it, has evaded the forced breakup requested by regulators. Here’s our condens…

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