Henry Thumann

O'Melveny & Myers LLP

Henry C. Thumann devotes his practice to high-stakes antitrust matters. He has spent a significant amount of time defending mergers and acquisitions before the U.S. antitrust agencies—the Federal Trade Commission (FTC) and the Department of Justice (DOJ)—for clients in an array of industries, including defense, healthcare, computer, supermarket, food products, gaming, and manufacturing.


  • California
  • District of Columbia


  • Harvard Law School, LL.B., 1960: magna cum laude; Law Review, (1958-1960)
  • University of Illinois, B.S., 1957


  • Ninth Circuit Judicial Council Committee on Evaluation of Judges and Lawyers (1985-2005)
  • Center For Public Resources Antitrust Committee (1986-present)
  • Ninth Circuit Judicial Conference (1982-85), (executive committee (1984 85))
  • Executive Committee, Antitrust Section, Los Angeles County Bar Association (1989-present)


Rate : $$$

What types of cases Attorney Henry Thumann & O'Melveny & Myers LLP can handle?
O'Melveny & Myers LLP can handle cases related to laws concerning Corporate, Litigation, White Collar Crime, Health Care, Antitrust & Trade, Aviation. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is O'Melveny & Myers LLP located?
O'Melveny & Myers LLP is located at 1625 Eye Street, Washington, DC 20006, USA. You can reach out to O'Melveny & Myers LLP using their phone line 202-383-5101. You can also check their website omm.com or email them at [email protected].
How much would it cost to hire O'Melveny & Myers LLP?
Henry Thumann lawyer charges are specific to each case. However, they work with contingency fees and its ranges from $$ to $$$. They also provide free consultation [and no obligation quotes] if you are interested to hire.
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O'Melveny & Myers LLP
Washington 20006 DC US
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