Lillian Brown


  • Co-Chair, Corporate Governance and Disclosure Group

Lillian Brown is a partner in the Transactional and Securities Departments and co-chair of the Corporate Governance and Disclosure Group in the Corporate Practice Group. Ms. Brown advises clients, including public companies and their boards, on federal securities law compliance and corporate governance matters. She has extensive experience in SEC reporting and disclosure requirements, shareholder proposal and proxy matters, ESG disclosure and stakeholder engagement, and shareholder activism and engagement. Ms. Brown works with a diverse range of companies, from Fortune 500 to private companies, spanning multiple industries including financial services and FinTech, technology, entertainment, consumer products, security, biotechnology and retail. Prior to joining the firm in 2013, Ms. Brown spent nearly 14 years at the Securities and Exchange Commission (SEC) in the Division of Corporation Finance. In her time at the SEC, among other roles, Ms. Brown served as Senior Special Counsel to the Director of the Division of Corporation Finance and Special Counsel in the Office of Mergers and Acquisitions.  

Professional Activities and Community Involvement

Ms. Brown serves as Chair of the American Bar Association's Federal Regulation of Securities Committee Subcommittee on Proxy Statements and Business Combinations and co-chairs PLI’s Corporate Governance Master Class and PLI’s Directors’ Institute on Corporate Governance. She is also an Advisory Board member for the Securities Regulation Institute and a Fellow in the American College of Governance Counsel. Additionally, she serves on the Editorial Advisory Board of Insights: The Corporate & Securities Law Advisor. Ms. Brown previously served as an elected member on the DC Bar's Corporation, Finance and Securities Law Steering Committee from 2014-2017 and as a member of the NASDAQ Hearings Panel from 2013-2017. Ms. Brown also served as a member of the Capitol Hill Day School Board of Trustees in a number of positions from 2011–2020, most recently as Chair from 2017–2020.

Ms. Brown is a frequent speaker and author on corporate governance and SEC reporting and disclosure-related topics.

  • WilmerHale Partner Lillian Brown Recognized in 2022 Edition of Chambers USA

    Lillian Brown is recognized as a nationwide leader in the Securities: Regulation: Advisory category. Chambers USA evaluates lawyers based on the technical legal skills, professional conduct, client service, commercial astuteness, diligence, commitment and other qualities most valued by clients.

    June 1, 2022
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  • Lillian Brown Elected a Fellow of the American College of Governance Counsel

    The American College of Governance Counsel is a professional, educational, and honorary association of lawyers who are widely recognized for their achievements in the field of governance.

    November 2, 2020
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  • Public Companies

    Drawing from her experience at the SEC, Ms. Brown counsels public company clients on new and evolving disclosure requirements and governance trends and developments, including providing practical and strategic advice to the senior management and boards of directors of these companies.
  • FinTech and Cryptocurrency

    Ms. Brown counsels early-stage and public companies in the FinTech industry, with particular focus on issues around the regulation of cryptocurrency.


  • Selected by peers for inclusion in Best Lawyers in America for corporate governance law (2023)
  • Recognized in the 2020–2022 editions of Chambers USA: America's Leading Lawyers in Business as a nationwide leader in the Securities: Regulation: Advisory category
  • Recommended in the 2017–2018 editions of The Legal 500 United States for M&A/Corporate and Commercial: Corporate Governance
  • Recipient of the SEC's 2010, 2006 and 2003 Law and Policy Award and the 2007 Paul R. Carey Award

Insights & News


  • Education

    • JD, University of Southern California Gould School of Law, 1999

    • BA, Political, Mills College, 1994

  • Admissions

    • District of Columbia

    • California

  • Government Experience

    • Securities and Exchange Commission

      Division of Corporation Finance

      Senior Special Counsel to the Director
    • Securities and Exchange Commission

      Division of Corporation Finance

      Special Counsel, Office of Mergers and Acquisitions
    • Securities and Exchange Commission

      Division of Corporation Finance

      Attorney Advisor, Disclosure Operations