Two federal antitrust cases are closing in on Google simultaneously — the most aggressive coordinated antitrust action against a tech company since the U.S. went after Microsoft in 1998. Here is the complete tracker: where both cases stand as of April 2026, what a breakup would actually look like, and what comes next.
The Two Cases at a Glance
| Search Monopoly Case | Ad Tech Monopoly Case | |
|---|---|---|
| Filed | October 2020 | January 2023 |
| Judge | Amit Mehta (D.C.) | Leonie Brinkema (Virginia) |
| Monopoly Found | August 2024 | April 2025 |
| What DOJ Demands | Sell Chrome & Android | Sell AdX & DFP |
| Current Status | DOJ appeal at D.C. Circuit | Ruling overdue — 16 days past deadline |
- Google holds 90% of the U.S. search market
- Paid $26.3 billion in 2021 to maintain default search status on devices
- Ad tech drives ~$200 billion in annual Alphabet revenue
- EU fined Google €2.95 billion for ad-tech monopoly (January 2026)
- Texas settled for $1.375 billion (May 2025)
- Chrome has 3 billion+ active users globally
- Judge Brinkema's self-imposed deadline was March 31, 2026 — ruling now 16 days overdue
Case 1: Ad Tech — Ruling Expected Any Day
Judge Leonie Brinkema found in April 2025 that Google illegally monopolized two markets: publisher ad servers (DoubleClick for Publishers, or DFP) and ad exchanges (AdX). She also ruled Google illegally tied the two products together — forcing publishers to use both or lose access to the dominant player on both sides of the ad transaction.
The remedies trial wrapped in November 2025. The DOJ demanded structural relief: force Google to sell AdX and DFP. Google argued for behavioral remedies — promises to share bid data with competitors, no divestitures.
Brinkema set a self-imposed March 31 deadline. As of April 16, that deadline has passed without a published ruling. Legal analysts don't read this as favorable to Google — judicial delays in complex structural cases are routine. A ruling is expected within days.
During closing arguments, Brinkema raised practical concerns: no identified buyer for AdX, and any acquisition would face its own antitrust review. She reportedly expressed reservations about ordering a full divestiture given the complexity and appeal timeline. But analysts tracking the docket believe some form of structural separation remains likely.
Google's defense: breaking up Google Ad Manager might be "technologically impossible" given integrated architecture. The DOJ's rebuttal: courts don't exempt companies from antitrust law because they built the monopoly more cleverly.
In March 2026, a New York judge effectively barred Google from contesting its anticompetitive conduct in private publisher lawsuits — shifting the burden to proving damages only, not liability. That significantly narrows Google's defenses in follow-on litigation.
Case 2: Search — DOJ Appeals "Slap on the Wrist" Ruling
Judge Amit Mehta ruled in August 2024 that Google illegally maintained its search monopoly — primarily through $20+ billion in annual payments to Apple, Samsung, and others to lock in default search placement on devices.
The punishment delivered in September 2025 disappointed antitrust advocates: Mehta banned exclusive default deals and ordered Google to share search data with competitors, but refused to force the sale of Chrome or Android.
The DOJ escalated. On February 4, 2026, the DOJ and 38 states filed a formal appeal to the D.C. Circuit, calling Mehta's behavioral remedies a "slap on the wrist for a recidivist monopolist."
Google filed its own counter-appeal challenging the foundational monopoly ruling itself, while seeking a stay on data-sharing orders it claims would cause "irreparable harm" to user privacy.
The D.C. Circuit is expected to hear oral arguments later in 2026.
Europe Already Acted — And Keeps Acting
While U.S. courts deliberate, the European Commission moved in January 2026 — fining Google €2.95 billion for the same ad-tech violations at the center of the Virginia case.
Two implications:
- Validation of DOJ's theory. Both U.S. and EU regulators independently concluded Google illegally bundled its ad-tech products. This makes Google's appeal harder in both jurisdictions.
- Potential European structural remedies. The EC is evaluating whether to require divestiture of European ad-tech assets regardless of U.S. court decisions.
In March 2026, a separate antitrust case from news publishers claiming Google monopolized online news search was dismissed by Judge Mehta. He ruled publishers failed to show Google held monopoly power specifically in news. A narrow win for Google — the core search monopoly ruling and ad tech case are unaffected.
Complete Timeline
What a Breakup Would Actually Look Like
- Chrome sale: 3B+ users forced off Google's data collection engine
- AdX sale: Open ad market — publishers and advertisers negotiate independently
- DFP sale: Publishers gain bargaining power vs. ad networks
- Data-sharing orders: Rivals build competing search products with real data
- Default deal ban: Apple and Samsung free to switch to Bing, Perplexity, or others
- Chrome divestiture may not survive D.C. Circuit review
- No obvious buyer for AdX at scale (who could pass antitrust review of their own?)
- Behavioral remedies may be substituted even if structural ones are ordered
- Multi-year appeals push meaningful impact to 2028+ at the earliest
- Google's integrated architecture makes clean separation technically complex
The Financial Stakes
Key Players
| Person | Role |
|---|---|
| Pamela Bondi | U.S. Attorney General, leads DOJ prosecution |
| Abigail Slater | Assistant AG, Antitrust Division |
| Sundar Pichai | Alphabet/Google CEO |
| Judge Amit Mehta | D.C. District, search monopoly case |
| Judge Leonie Brinkema | E.D. Virginia, ad tech case — ruling overdue as of April 16 |
What Happens Next
The Brinkema ruling is the immediate trigger — now sixteen days past her self-imposed deadline, expected any day. If she orders AdX sold, Google will seek a stay immediately. The question is whether courts pause the order during what will be a multi-year appeal.
After that: the D.C. Circuit on the Chrome divestiture demand (late 2026), then almost certainly the Supreme Court for both cases, likely 2027–2028.
The EU adds an unpredictable third front. If Brussels imposes its own structural remedies, Google could face simultaneous divestiture orders across jurisdictions — a legal challenge with no modern precedent for a company this size.
The era of tech monopolies avoiding structural consequences may be ending. The Brinkema ruling — now sixteen days past her self-imposed March 31 deadline — will be the first real test of whether U.S. courts are willing to force a genuine breakup.
