Google has officially appealed against a federal ruling that deemed it an illegal search monopolist. In its legal filing, Google claims to have 'prevailed in the marketplace fair and square' and argues that Judge Amit Mehta erred in his decision.

The tech giant is seeking to overturn both the August 2024 decision about its illegal monopolization and September 2025 remedies order, which directed it to share some search data with competitors. Google asserts that its agreements with browser and device makers were not anticompetitive but rather preferred by other market players.

Furthermore, the company disputes Judge Mehta’s remedies, arguing they exceed his judicial discretion and include an 'extraordinary step' of sharing data with generative AI players that did not exist during the relevant period. Google contends these players are already succeeding without needing to benefit from its success.

The US government and a coalition of states that sued alongside it are also appealing, arguing that Judge Mehta should have implemented broader changes to address alleged harms to competition. The case is now set for review by a federal appeals court in DC before potentially heading to the Supreme Court.