Google Antitrust Cases and Regulatory Actions

Reference TimelineLast updated
SUMMARY

The Department of Justice (DOJ) urged the D.C. Circuit Court of Appeals on July 30, 2026, to uphold and strengthen a lower court's decision finding Google maintained an illegal monopoly in the search market, specifically targeting Google's exclusive agreements and seeking to overturn the denial of a ban on large payments to distributors like Apple. As of July 30, 2026, Google is actively appealing multiple antitrust rulings globally, including a U.S. federal court's finding of illegal monopolies in online search and advertising, and a €4.1 billion EU antitrust fine for abusing its Android dominance. The EU's top court dismissed Google's appeal on July 2, 2026, concluding an eight-year legal battle. Oral arguments for Google's appeals in its search monopoly and ad tech antitrust cases are expected in late 2026 or early 2027, with the DOJ seeking more severe penalties.

Timeline

Want updates on this thread?

Track this story

July 2026 — 2 developments

  1. DOJ Urges Appeals Court to Strengthen Google Monopoly Ruling

    The Department of Justice is urging the D.C. Circuit Court of Appeals to uphold and strengthen a lower court's decision that found Google maintained an illegal monopoly in the search market. The DOJ's argument focuses on Google's exclusive agreements that allegedly foreclosed rivals from the search market for extended periods. The DOJ also wants the court to overturn the denial of a ban on large payments Google makes to distributors like Apple for default search engine placement.

  2. EU court dismisses Google's appeal against €4.1 billion Android antitrust fine

    The European Union's top court dismissed Google's appeal against a €4.1 billion antitrust fine for abusing its dominant position with the Android operating system. This ruling concludes an eight-year legal battle, confirming Google's requirement for phone manufacturers to pre-install its services and prohibiting rival operating systems.

June 2026 — 6 developments

  1. Federal Judge Recognizes Google's Search Monopoly in Ruling Aiding Yelp Antitrust Case

    A federal judge recognized Google's monopoly in the internet search market on June 30, 2026, allowing Yelp to bypass discovery in its antitrust lawsuit. This ruling means a jury will be instructed that Google has held a monopoly from early 2009 through August 5, 2024.

  2. Google Appeals Antitrust Rulings; Oral Arguments Set for Late 2026/Early 2027

    Oral arguments for Google's appeals in its search monopoly and ad tech antitrust cases are now expected in late 2026 or early 2027. The company is challenging remedies that include sharing search data with rivals and prohibiting exclusive contracts, while the DOJ seeks more severe penalties.

  3. Google Tests AI Interface in Chrome, Sparking New Antitrust Concerns

    Google is testing a Chrome feature that routes all address-bar queries to an AI interface, raising new antitrust questions. This development comes amid ongoing scrutiny of Google's default-setting arrangements and previous rulings that found the company illegally maintained a monopoly in search engine services and search advertising.

  5. Google Appeals US Search Monopoly Ruling Amid New UK AI Training Rules

    Google is appealing a US federal judge's ruling that it illegally maintained a search monopoly, while also complying with new UK regulations. The UK's Competition and Markets Authority (CMA) has imposed legally binding rules allowing publishers to opt out of having their content used to train AI models in search results.

  6. Mozilla challenges Google antitrust ruling, arguing search deal wasn't exclusive

    Mozilla is urging a federal appeals court to reverse a key finding that Google violated antitrust law by monopolizing search, arguing that its search deal with Google was not exclusive. This challenge comes as Google appeals its own search monopoly ruling, highlighting ongoing legal disputes over Google's market dominance.

May 2026 — 5 developments

  1. Google Appeals US Search Ruling; EU Considers Record Fine for DMA Violations

    Google has appealed a U.S. federal court ruling that found the company illegally maintained monopolies in online search and advertising markets. In parallel, the European Union is reportedly preparing to impose a substantial fine on Google for alleged violations of the Digital Markets Act (DMA), potentially in the high triple-digit million euro range.

  2. Google Appeals Antitrust Ruling, Challenges Search Data Sharing Mandates

    Google has appealed a 2024 federal ruling that found the company illegally maintained its dominance in online search through default search agreements. Filed on May 22, 2026, the appeal argues Google's success stems from merit-based competition and innovation. The company is also seeking to overturn remedies that would require sharing search data with competitors, particularly excluding generative AI companies.

  3. Google Ad Tech Antitrust Case: Remedies Trial Ongoing Amidst Mass Arbitration Efforts

    As of May 11, 2026, a remedies trial for Google's ad tech antitrust case is ongoing. Concurrently, Keller Postman LLC announced a mass arbitration effort on behalf of thousands of U.S. businesses seeking recovery for alleged advertising overcharges. This follows a ruling on April 17, 2025, that found Google had monopolized publisher ad server and ad exchange markets.

  4. Google Denied Request to Pause Search Monopoly Case Remedies

    A court denied Google's request to pause the enforcement of remedies in its search monopoly case, which includes provisions for data sharing and syndication with competitors. The company sought to delay these provisions while it appeals a broader ruling, but the court found that Google had not demonstrated imminent irreparable harm.

  5. DOJ asks judge to block Google from accessing competitor data in antitrust case

    The Justice Department requested a federal judge to block Google from accessing confidential data from third-party competitors. The DOJ argued that Google's access to this data could undermine competition by having a chilling effect on actual or potential competitors. This action is part of the process for approving Google's review of its search index as a potential remedy.

April 2026 — 3 developments

  1. DOJ Secures Settlements and Wins Cases Against Google's Ad Tech and Search Monopolies

    The U.S. Department of Justice has announced a settlement with Google over the illegal monopolization of digital advertising markets, following a federal judge's ruling in April 2025 that Google violated antitrust laws. In a separate case, a judge ruled in August 2024 that Google held monopoly power in general search engine services and unlawfully used it to drive up ad prices, though Google will not be required to divest Chrome or Android.

  2. DOJ and 38 States Appeal Google Antitrust Ruling, Challenge Ownership of Chrome and Android

    The U.S. Department of Justice and 38 states have appealed a judge's order sanctioning Google over antitrust violations, challenging restrictions that allowed Google to retain ownership of Chrome and Android. Yelp supports the appeal, arguing the ruling imposed only modest restrictions on Google's search engine and AI contracts.

  3. DOJ plans new antitrust lawsuit to break up Google's ad tech business

    The U.S. Department of Justice plans to file a new civil antitrust lawsuit seeking to break up Google's ad tech business. This action is separate from ongoing appeals and previous rulings in existing antitrust cases against the company. The DOJ expects to file its lawsuit by early next year.

March 2026 — 3 developments

  1. Google's Ad Billing Changes Reportedly Harm Small Businesses Amid DOJ Antitrust Appeal

    Google's ad billing changes are reportedly negatively impacting small businesses, with these issues being linked to the company's established search monopoly. This development emerges following the U.S. Department of Justice's appeal of a previous ruling in its antitrust case against Google.

  2. DOJ considers forcing Google to sell Chrome or Android in antitrust escalation

    The U.S. Department of Justice is considering a significant escalation in its antitrust case against Google, contemplating a court order for the company to sell parts of its business, such as the Chrome browser or Android operating system, to dismantle its search monopoly. This potential move comes as both the government and Google are appealing aspects of previous rulings on antitrust remedies, with the government seeking harsher measures.

  3. Federal Judge Orders Google to Pay $20 Billion and End Exclusive Search Contracts

    A federal judge has ordered Google to pay $20 billion in damages and implement significant changes in its antitrust case concerning its search engine monopoly. The ruling prohibits Google from exclusive contracts for its search engine, Chrome, Google Assistant, and Gemini app, and requires it to share search index and user interaction data with rivals to foster competition.

February 2026 — 3 developments

  1. DOJ Files Cross-Appeal in Google Antitrust Case, Challenging Remedies Decisions

    The U.S. Department of Justice has filed a cross-appeal against a federal court's ruling in the antitrust case concerning Google's search monopoly. This appeal challenges the remedies decisions previously made in the lawsuit, which accused Google of unlawfully monopolizing internet search and search advertising.

  2. US Government and States Appeal Google Antitrust Ruling, Seek Harsher Remedies

    The U.S. government and a coalition of states, led by Colorado, have appealed a federal judge's ruling in the antitrust case against Google's search business and AI apps. They argue that the imposed limitations on Google were too lenient and seek harsher remedies, potentially including the divestiture of Chrome.

January 2026 — 2 developments

  1. Google proposes behavioral remedies in Adtech antitrust case, opposing DOJ's divestiture request

    The remedies decision in the Google Adtech antitrust case is pending, with the Department of Justice having requested the divestiture of Google's AdX exchange. Google has opposed this, filing a memorandum proposing behavioral remedies instead of a breakup of its ad technology.

November 2025 — 1 developments

  1. Judge Brinkema Doubts Quick Google Ad Tech Divestiture, Citing Appeals and Practicality

    U.S. District Judge Leonie Brinkema expressed doubts about the speed of divesting Google's ad tech arm, noting that Google is likely to appeal and that behavioral remedies might be more practical. Attorneys made final arguments on November 21, 2025, in the case where the DOJ seeks the divestiture of Google's ad-tech business to restore competition.

September 2025 — 1 developments

  1. Judge Mehta Prohibits Google From Exclusive Search Contracts, Rejects Divestiture of Chrome/Android

    Judge Mehta issued his ruling on remedies, prohibiting Google from entering or maintaining exclusive contracts for Google Search, Chrome, Google Assistant, and the Gemini app, and requiring Google to share certain search index and user interaction data with rivals. However, he rejected the DOJ's request to divest Chrome or Android.

April 2025 — 3 developments

  1. Federal Prosecutors Advocate Strong Measures Against Google in Search Antitrust Remedies Trial

    The remedies trial for the search antitrust case began, with federal prosecutors advocating for strong measures to prevent Google from extending its market control, especially into the AI era.

  2. U.S. District Court Rules Google Illegally Monopolized Digital Advertising Markets

    A U.S. District Court ruled on April 17, 2025, that Google illegally monopolized key digital advertising markets, finding the company guilty of monopolizing open-web digital advertising markets. This decision, which followed a 15-day trial, determined that Google's actions harmed publishers, competition, and consumers. The Justice Department had filed the lawsuit in January 2023, alleging anticompetitive practices through acquisitions and auction manipulation.

  3. Federal Judge Rules Google Illegally Monopolized Online Ad Tech Industry

    In a separate but related antitrust case, a federal judge ruled that Google illegally monopolized the online ad tech industry, finding violations of the Sherman Antitrust Act.

September 2024 — 1 developments

  1. Judge Mehta sets December 2024 deadline for DOJ penalty proposals

    Judge Mehta set a timeline for the remedies phase, instructing the DOJ to submit its proposals for penalties by December 2024.

August 2024 — 2 developments

  1. Federal Judge Rules Google Violated Antitrust Laws in Search and Advertising

    A federal judge has ruled that Alphabet, Google's parent company, violated antitrust laws by reinforcing its dominance in online search and advertising. This ruling, the Justice Department's first such victory in over two decades, opens the door for a second trial to determine remedies. The DOJ has proposed that Google divest its AdX advertising marketplace and ad server DFP to address its illegal monopoly in ad-tech markets.

  2. U.S. Judge Rules Google Illegally Monopolized Search Engine and Advertising Markets

    U.S. District Judge Amit Mehta ruled that Google illegally monopolized the search engine and search advertising markets, finding that the company violated Section 2 of the Sherman Act.

September 2023 — 1 developments

  1. U.S. v. Google Antitrust Bench Trial Begins

    The bench trial in the U.S. v. Google antitrust case began, examining Google's practices to maintain its dominance in online search.