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William R. McLucas

Listed in Best Lawyers since 2005

Wilmer Cutler Pickering Hale and Dorr LLP

William McLucas is one of the most sought-after advisors to public companies, boards of directors, audit committees and special committees dealing with corporate crises and related issues. He joined the firm after serving for more than eight years as Director of Enforcement for the Securities and Exchange Commission's Division of Enforcement’s—longer than any other Enforcement Division Director in Commission history. He represents public companies, investment banks, accounting firms and advisors to mutual funds facing a variety of corporate and market crises, as well as Securities and Exchange Commission investigations. Mr. McLucas is chair of the firm’s Securities Department.

In 1977, Mr. McLucas joined the Securities and Exchange Commission's Division of Enforcement. He led the Division's Staff in numerous high-profile investigations and landmark enforcement actions, including hundreds of insider trading cases and numerous inquiries and proceedings involving public companies, accounting firms, investment banks, and participation in the municipal securities markets.

In addition, Mr. McLucas has led numerous audit committee and special committee inquiries, and has also represented numerous corporate executives and directors in connection with Securities and Exchange Commission investigations.

Chambers USA: America's Leading Lawyers for Business describes Mr. McLucas as "one of the country's most celebrated regulatory attorneys." 

Client Comments

  • "Bill is the leading practitioner in his field. He is particularly adept at developing a sense of the client's goals, and recommending a strategy for achieving those goals."


  • "William McLucas is the consummate counselor. He has a steady hand and expertise."


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1875 Pennsylvania Avenue, NW
Washington, DC 20006
Phone: 202-663-6622
Firm Phone: 202-663-6000

Practice Areas

  • Bet-the-Company Litigation
  • Commercial Litigation
  • Corporate Compliance Law
  • Corporate Governance Law
  • Securities / Capital Markets Law (Enforcement)

Lawyer of the Year


  • Pennsylvania State University (BA)
  • Temple University Beasley School of Law (J.D.)

Bar Admissions

  • The District of Columbia Bar
  • New York State Bar Association
  • Pennsylvania Bar Association