Observed Signal · Nov 6, 2025 · Policy Update · Source: AdExchanger · Impact: 5/5 · Sentiment: Neutral
DOJ and Google Clash Over AdTech Remedies Ahead of Verdict
The DOJ and Google have filed updated post-remedy briefs in the ongoing antitrust case over Google's ad tech stack, with the sides sharpening their positions ahead of closing arguments. Google argues that divesting its sell-side AdX would be time-consuming and unnecessary, proposing to integrate Prebid with AdX for open web display ads while allowing bypass for video/CTV/in-app formats and certain programmatic packaging; it also pledges to maintain performance and reduce latency and information loss. The DOJ counters with structural relief to restore competition, including potential divestiture of AdX and DFP and an escrow fund to collect a share of net profits from Google’s ad tech businesses to aid publishers. It also proposed opening the Ad server logic and warned of disruptions to small publishers. Judges Brinkema and Mehta have raised questions about the remedies’ practicality and impact on publishers, shaping the debate over remedies and enforcement.
Policy update from a major platform (Google) on remedies in a high-profile antitrust case; potential divestiture could reshape the ad tech landscape
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Key Takeaways & Evidence Grounding
- DOJ and Google filed updated post-remedy briefs in the Google AdX/DFP antitrust case
- Google proposes to integrate with Prebid for open web display ads and to bypass Prebid for video/CTV/in-app formats
- DOJ proposes structural relief, including possible divestiture of AdX and DFP, and an escrow fund to compensate publishers
- DOJ proposed open-sourcing the AdX 'Final Auction Logic' and a channel for publishers to request auction data
- Judge Brinkema raised concerns about cost to publishers and the practicality of remedies; the case may involve closing arguments
Connected Companies & Entities
1 Entity mappedRelated Market Signals & Shifts
Recent verified developments and strategic activity across this market segment.
Google and DOJ File Proposed Remedies in Ad Tech Case
Google and the Department of Justice have filed competing proposed final judgments in the ad tech antitrust case. The 41-page filing outlines remedies that include requiring Google to connect AdX to Prebid, accept bid requests from non-Google ad servers, and separate DFP and AdX contracts. Both sides agree on core remedies but dispute details such as implementation timelines, data access conditions, and the selection and powers of a compliance monitor. The DOJ seeks faster global implementation and stronger data rights, while Google asks for more time and weaker monitoring language. Judge Brinkema must now resolve the disputes before issuing a final order.
Google's Antitrust Trial: Remedies Phase Raises Key Questions
The remedies phase of Google's antitrust trial concluded after 11 courtroom days, offering observers a clearer view of Judge Leonie Brinkema's approach and potential remedies. The DOJ's proposal for a lengthy divestiture—reportedly up to 14 years—faced skepticism about imposing ongoing costs or engineering requirements. Brinkema questioned whether acquirers could offer the same products for free and explored alternative incentives, including vouchers or shifting buy-side products. Testimony from Google publishers and ad-tech executives highlighted burdens on small publishers and questions about open-sourcing Final Auction Logic. Several observers suggested behavioral remedies could be favored over a full divestiture. Next steps include settlement discussions before November's closing arguments, with a decision anticipated in late Q1 2026.
Judge Weighs Google's Ad Tech Future After Closing Arguments
Closing arguments in the DOJ v. Google ad tech antitrust trial have concluded, and Judge Leonie Brinkema will decide the fate of Google's sell-side ad tech business, AdX. The DOJ pressed for a structural remedy—divestiture of AdX—arguing that behavioral requirements would leave Google room to undermine the ruling, while Google contended that trust is at the core of the matter and that a full divestiture is unnecessary. Google's attorney, Karen Dunn, contrasted the DOJ's approach with the outcomes of the Google Search antitrust trial, suggesting a lighter, behavioral remedy could suffice. The judge voiced concerns about how quickly any remedies could take effect given rapid innovation in ad tech. A potential AdX buyer, such as Microsoft, was mentioned, though no ready acquirer was identified and a divestiture could trigger additional antitrust reviews. A decision is expected next year, with appeals likely.
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