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Ann O'Brien is a partner and co-leader of the firm's Antitrust and Competition Practice Group. She also leads the firm’s Criminal Antitrust and Cartels team. Ann is based in the firm's Washington, D.C. office.

On April 23, 2024, the Federal Trade Commission (the “FTC”) voted 3-2 to issue its final rule (“Final Rule”) banning employers from imposing noncompete clauses on their workers, approving the final rule in a special Open Commission Meeting. Continue Reading FTC Votes to Ban Noncompete Agreements

On October 4, 2023, the Department of Justice (DOJ) announced the advent of a new safe harbor for companies that discover wrongdoing by the acquired business in the course of an M&A transaction. Buyers hoping to take advantage of this avenue for leniency would be well-advised to conduct thorough diligence and act quickly to report any wrongdoing they uncover, as the potential upsides for those who do so may be considerable in light of the DOJ’s new policy.Continue Reading DOJ Announces Mergers & Acquisitions Safe Harbor Policy

On September 21, 2023, the Federal Trade Commission (FTC) sued Welsh, Carson, Anderson & Stowe (WCAS) and U.S. Anesthesia Partners, Inc. (USAP), in the Southern District of Texas, alleging the two companies “[e]xecuted a multi-year anticompetitive scheme to consolidate anesthesiology practices in Texas, drive up the price of anesthesia services provided to Texas patients, and boost their own profits.”Continue Reading FTC Sues Private Equity Firm and Anesthesiology Practice for Antitrust Violations

Antitrust enforcement has been heating up over the last few years in several areas – notably in healthcare and labor.[1] As the antitrust climate intensifies and spreads, private equity (PE) firms are starting to feel the heat, finding themselves the focus of increased antitrust scrutiny. Significantly, antitrust enforcement and litigation risks are moving from the portfolio companies to the PE firms themselves. Three areas of heightened risk stand out: interlocking directorates, roll-ups, and PE divestiture buyers.[2]Continue Reading Hot Antitrust Enforcement Climate Reaches Private Equity