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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 then, he has represented international insurers and reinsurers in litigations, arbitrations and mediations in venues throughout the country, with an emphasis on bankruptcy-related cases. 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