Daniel Rosenthal is partner in the Washington, D.C., office of Kirkland & Ellis LLP. Daniel is widely considered a “go-to” practitioner for government merger and non-merger investigations, as well as counseling on antitrust issues, with a proven track record advising clients on complex cross-border transactions with multiple merger clearance requirements. He has broad experience handling complex antitrust issues in a variety of industries, including healthcare, pharmaceuticals, biotechnology, manufacturing, oil & gas, solid waste, transportation, automobile components, semiconductors, software, hardware, chemicals, publishing, renewable energy, entertainment and retail sales.
Daniel has successfully defended non-merger investigations, including investigations of violations of Section 8 of the Clayton Act, and has advocated for government intervention on behalf of parties adversely impacted by proposed mergers. He also advises clients on issues relating to the Hart-Scott-Rodino Antitrust Improvements Act of 1976 (HSR Act), as well as international merger notification requirements. Clients turn to Daniel on a variety of antitrust risk management issues relating to business initiatives such as joint ventures, pricing and distribution strategies, information and data-sharing, and trade association and industry-wide collaborative efforts.
From 2022–2024, The Legal 500 United States named Daniel a “Recommended Lawyer for Antitrust.” In spring 2023, Daniel was recognized by Mondaq with a Thought Leadership Award for Antitrust/Competition Law. He is also an active speaker and writer on antitrust matters, having hosted numerous CLE courses, authored and co-authored several articles and publications, including the U.S. chapter of Merger Control, a comparative guide published by The Legal 500 United States (2018–2021). Most recently, Daniel was a guest lecturer on the intersection of antitrust and M&A for “International Business Transactions” at the George Washington University Law School and has also hosted multiple programs offered by MyLawCLE in conjunction with the Federal Bar Association on a variety of topics including “Iceberg Ahead! A Primer on HSR in M&A and what the sweeping proposed HSR changes mean for your deal” and “Safe Harbors to Troubled Waters? Heightened Antitrust Scrutiny of Labor Markets.”
