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William Primps is an Of Counsel in the firm’s Commercial Litigation department. Bill is a highly-experienced litigator with a practice focused on antitrust, energy and insurance. During his career, he has represented Canada’s largest state-owned utility company and a Tokyo-based insurer in post 9/11 litigation in various courts around the U.S. Since 2010, he has served as counsel to the North American CRO Council, a trade association with a membership including virtually all the largest P/C and life insurer in North America; during that time he also has represented major financial institutions and Fortune 500 companies.

Practice Areas



  • New York
  • U.S. Supreme Court
  • U.S. Court of Appeals for the Second Circuit and Various Other Federal Courts


  • J.D., Harvard Law School, 1974
  • B.A., Yale University, cum laude, High Honors, 1971

Professional and Community Activities

  • Member, The Association of the Bar of the City of New York
  • Member, New York State Bar Association
  • Member, American Bar Association
  • Board of Directors, Atlantic Legal Foundation Advisory Council
  • Chairman, Bronxville Zoning Board of Appeals, 1989–1991
  • Trustee, Village of Bronxville, 1991–1998, Deputy Mayor 1996-1998
  • Counsel, Bronxville Board of Ethics, 2004–2018
  • Vice President, Bronxville School Foundation, 2002–2005
  • President, Ivy Football Association
  • Villiage Justice, Justice Court of Bronxville, 2018–Present

Speaking Engagements

  • Moderator, Tokyo Panel on Return of Ill-Gotten Gains, NYS Bar Association, November 8, 2018
  • Speaker, Meeting of National Conference of Insurance Commissioners, “CTE Legal and Insurance Issues,” July 11, 2019
  • Speaker, Annual Meeting of Casualty Actuarial Society, Las Vegas, “CTE Insurance Issues,” November, 2018
  • Speaker, Association of the Bar of the City of New York, “Problem Deals”
  • Speaker, Harvard Law School Panel, International Arbitration
  • Speaker, Harvard Law School Panel on Energy Investments in Russia

Honors and Awards

  • Super Lawyers, Top Rated Antitrust Litigation Attorney in New York, NY, 2013-Present