Michael C. Naughton
Biography
Michael Naughton is a partner in Weil’s global Antitrust practice, where his practice focuses on advising clients on the antitrust regulatory requirements associated with large, typically global, transactions. He counsels clients on pre-merger notification compliance, both domestically under the Hart-Scott-Rodino Act and internationally. He also represents clients in government investigations and reviews of mergers and acquisitions, and in government and private antitrust litigation, and counsels clients on the antitrust implications of their business activities. Michael brings to his practice the benefit of his doctorate in economics, along with his extensive prior academic and consulting experience in antitrust economics and industrial organization.
He is the author of several articles, including “Gun-Jumping and Premerger Information Exchange: Counseling the Harder Questions” and “Buyer Power Under Attack: Recent Trends in Monopsony Cases” which were published in Antitrust Magazine, and “The Antitrust Risks of Unilateral Conduct in Standard Setting,” which appeared in The Antitrust Bulletin.
Michael received a B.A. in Economics from the University of Vermont, a Ph.D. in Economics from Boston College and a JD, magna cum laude, from New York University School of Law, where he was elected to Order of the Coif and was editor-in-chief of the NYU Environmental Law Journal. From 1985 to 1991, Michael was as an Associate Professor of Economics at San Diego State University.
Firm News & Announcements, Awards and Recognition, Speaking Engagements, Guides and Resources, Latest Thinking
Firm News & Announcements
- Weil Advises Primoris in $422M Acquisition of PayneCrest Electric Deal Brief — March 31, 2026
- Weil Advises Goldman Sachs in its Strategic Investment in GeoWealth Deal Brief — March 19, 2026
- Weil Advises Bain Capital in its Strategic Growth Investment in Duravent Deal Brief — March 18, 2026
- Weil Advises Everstream in Sale to Bluebird Fiber and Emergence from Chapter 11 Deal Brief — March 09, 2026
- Weil Advises Blackstone in Acquisition of Champions Group Deal Brief — February 17, 2026
Latest Thinking
- Hart Scott Rodino Filing Requirements Change as of March 19, 2026 Alert — Antitrust — By Michael C. Naughton and Carla A. R. Hine — PDF — March 19, 2026
- Expanded HSR Filing Requirements Remain in Effect Until Further Notice Alert — Antitrust — By Michael C. Naughton and Carla A. R. Hine — PDF — February 20, 2026
- Federal Court Strikes Down Expansive HSR Filing Requirements... For Now Alert — Antitrust — By Michael C. Naughton, Mark Seidman, Carla A. R. Hine and Katya Dajani — PDF — February 13, 2026
- Adjustments to the HSR Act Filing Thresholds, Fee Structure, and Interlocking Directorate Thresholds Alert — By Michael C. Naughton, Carla A. R. Hine, Marie-Marie O. de Fays and Dan S. Nobil — PDF — January 16, 2026
- Adjustments to the HSR Act Filing Thresholds, Fee Structure, Civil Penalties, and Interlocking Directorate Thresholds Alert — By Carla A. R. Hine, Michael C. Naughton, Dan S. Nobil and Marie-Marie O. de Fays — PDF — January 22, 2025