As seen in countless news headlines over the past four years, antitrust enforcement was a major focus of the Biden Administration. Throughout President Joe Biden’s term, FTC Chair Lina Khan and Assistant Attorney General Jonathan Kanter aggressively sought to enforce federal antitrust laws across multiple industries and break new ground.

This past year saw the release of new Hart-Scott-Rodino (HSR) Act filing requirements, an intensified focus on labor market competition, including the issuance of a ban on noncompete agreements, an increase in litigation against Big Tech companies using novel legal theories and merger challenges under the 2023 Merger Guidelines. Here’s a recap of the major antitrust events of 2024 and developments to look for in 2025.