LAWYER PROFILE
William D Regner

William D Regner

USA 2026

Chambers ranking badge
Chambers ranking badge

Ranked in 2 practice areas

About

Provided by Debevoise & Plimpton LLP

Practice Areas

William Regner is a member of Debevoise’s Mergers & Acquisitions, Technology, Media & Telecommunications, Financial Institutions and Corporate Governance Groups. He is a member of the firm’s Management Committee and previously served as Deputy Chair of the firm’s Corporate Department. He focuses on public company transactions and corporate governance matters and advises boards, special committees and senior management on governance issues, including activist challenges and risk management. He has experience across many industries but is particularly active in the TMT and asset management sectors. He also regularly represents investment banking firms in their roles as financial advisors in major transactions. Mr. Regner was recognized as a “Client Service All-Star” by BTI Consulting in 2018.

Mr. Regner joined Debevoise as an associate in 1994 and became a partner in 2002. Mr. Regner received his A.B. from Colgate University in 1988 and his J.D. summa cum laude from the Benjamin N. Cardozo School of Law in 1994, where he was articles editor of the Cardozo Law Review.

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Asset Management M&A - USA - Nationwide

Band 1
Band 1

Individual Editorial

William Regner is a highly esteemed corporate attorney who offers wide-ranging skills in M&A, corporate governance and wider advisory matters. He is also noted for his expertise in asset management M&A matters.

Corporate/M&A - New York

Band 2
Band 2

Individual Editorial

William Regner regularly plays a role in complex corporate transactions involving public companies. He is recognized for his deep expertise in the media and technology spaces.

Strengths

Provided by Chambers

  • He offers excellent, practical advice.

    Asset Management M&AChambers Guide to the USA
  • He is very even-keeled, which was critical.

    Corporate/M&AChambers Guide to the USA
  • He is totally unflappable and provides very good advice.

    Corporate/M&AChambers Guide to the USA
  • I often use 'what would Bill do?' to validate my decision-making.

    Corporate/M&AChambers Guide to the USA
  • Bill is an extremely smart and very careful and effective negotiator. He is someone who can really break through problems in deal negotiations.

    Corporate/M&AChambers Guide to the USA
  • Bill is super seasoned. He has so much credibility and is a great communicator and writer.

    Corporate/M&AChambers Guide to the USA

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District of Columbia

New York

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