Photograph of Michael D. Mann

Michael D. Mann


Michael D. Mann is a partner in the Washington, D.C. office of Crowell & Moring, and a member of the Corporate and White Collar & Regulatory Enforcement groups. His practice focuses on international securities regulation and enforcement and the cross-border conduct of business. Michael provides strategic advice and counseling to clients engaged in business subject to regulation in the United States and throughout the world. He regularly represents public companies and their audit committees, officers and directors in connection with their compliance with U.S. regulatory requirements, including the Dodd-Frank, Sarbanes-Oxley, and Foreign Corrupt Practices Acts, as well as U.S. Economic Sanctions.

The Legal 500 United States recommended him in the areas of Compliance and Securities Law, SEC Enforcement, and Corporate Investigations & White Collar Criminal Defense (2009-2013, 2015, 2017, 2019-2021) with clients noting that he is "widely recognized as the 'go-to' lawyer for clients in the international financial services sector” and "praised [him] for his unparalleled command of the global regulatory environment.” He has been nationally ranked as a “Leading Individual” in the area of Securities Regulation in Chambers USA: America's Leading Lawyers for Business for thirteen consecutive years (2009-2022). Chambers describes him as “impressively strong in matters related to Dodd-Frank, the FCPA and sanctions violations.”

Prior to entering private practice, he served for seven years as the first Director of the Office of International Affairs at the U.S. Securities and Exchange Commission. Michael established the key formal and informal relationships between the SEC and its foreign regulatory counterparts in the world’s most important developed and emerging markets. In particular, he negotiated formal understandings to facilitate cooperation on enforcement, regulation of cross-border trading activity, and the development of securities markets. These understandings continue to be the centerpiece of the SEC’s international enforcement efforts.

Michael also led the SEC’s development of new regulatory approaches to facilitate access to the U.S. securities markets through cross-border securities offerings. Moreover, he directed the SEC’s multilateral efforts to improve and harmonize regulation worldwide and to remove unnecessary barriers to trade.

Prior to becoming Director of the Office of International Affairs, Michael served as Associate Director in the SEC’s Division of Enforcement. While in the Division of Enforcement, he carried out investigations and litigation with a particular emphasis on international matters. He acted as counsel for the Commission in SEC v. Levine, SEC v. Certain Unknown Purchasers (the “Santa Fe” case), and SEC v. Winans (the “Wall Street Journal” case), among others.

He was awarded the rank of Distinguished Executive in the Senior Executive Service by President Clinton and was presented the Chairman’s Award for Excellence. Michael received The Manual F. Cohen Outstanding SEC Younger Lawyer Award from The Federal Bar Association, Securities Law Committee.

He is a member of the Council on Foreign Relations, the Board of Advisors to the Securities and Exchange Commission Historical Society, and a member of the Federal Bar Association / Securities Law Committee Executive Council. He previously served as a member of the Hampshire College Board of Trustees and the Board of Directors of the Federation of American Scientists. He also served as the Chairman of the Securities Market Advisory Board of the Toronto International Leadership Centre for Financial Sector Supervision.

Prior to joining the firm, he was a founding partner of Richards Kibbe & Orbe LLP.


  • Hampshire College, B.A. (1975)
  • Antioch School of Law, J.D. (1981)


Admitted to practice: District of Columbia, New York

Professional Activities and Memberships

  • Member, Council on Foreign Relations
  • Member, Federal Bar Association, Securities Law Committee Executive Council
  • Member, Board of Advisors to the Securities and Exchange Commission Historical Society
  • Member, Wall Street Lawyer Editorial Board

View More


Corporate and Transactional

Securities Fraud and Financial Investigations

Environmental, Social, and Governance

Executive Practice

Financial Services

Foreign Corrupt Practices Act

SEC Enforcement


White Collar and Regulatory Enforcement

Investment Funds

Show more practices…

  • Representation of U.S. and foreign private issuers, Boards of Directors and their Audit and Governance Committees in connection with investigations involving allegations of violations of the U.S. securities laws, including the Foreign Corrupt Practices Act.
  • Representation of senior officers of U.S. and foreign issuers and hedge funds in connection with SEC investigations and regulatory inquiries in matters involving securities trading, accounting and disclosure, the operation and establishment of internal controls under the Sarbanes-Oxley Act, and the application of the Foreign Corrupt Practices Act.
  • Ongoing advice to hedge funds and financial institutions in connection with the development of comprehensive compliance programs to address regulatory obligations imposed by U.S. and foreign securities laws and regulations.
  • Ongoing advice to various multilateral development banks in relation to interaction with U.S. enforcement authorities, governance issues, and the development of compliance procedures to address a variety of risks facing international organizations.
The Best Lawyers in America 2023 Recognizes 54 Crowell & Moring Attorneys, Three Selected as Lawyer of the Year (August 18, 2022)
Firm News / Announcement
SEC Flexes Regulatory Muscle With RIAs, Brokers In Focus PlanAdviser (August 17, 2022)
Press Coverage
Chambers USA 2022 Ranks 70 Crowell & Moring Lawyers and 37 Practice Areas Among Best in U.S. (June 1, 2022)
Firm News / Announcement
"SEC Proposes Rules Governing ESG Investment Disclosures," Corporate Alert (May 26, 2022). Contacts: Elizabeth B. Dawson, Byron R. Brown, Michael D. Mann, William J. Bruno, Jeff Severson
Client Alert / Newsletter
"The SEC’s Administrative Proceedings May Soon Disappear," White Collar Alert (May 25, 2022). Contacts: Rebecca Lennon Baskin, Michael D. Mann, Daniel L. Zelenko
Client Alert / Newsletter
"SEC Charges Vale with Securities Law Violations after Brumadinho Dam Collapse," White Collar Alert (April 28, 2022). Contacts: Elizabeth B. Dawson, Michael D. Mann, Thomas A. Hanusik, Jeff Severson
Client Alert / Newsletter
"Enforcement Developments in Global Capital Offerings," Global Capital Markets & the US Securities Law Webinar 2022 (April 13, 2022). Speaker: Michael D. Mann.
SEC Has Over 50 Rulemaking Projects, But A ‘Phenomenally Important’ One Is Missing Reuters (January 14, 2022)
Press Coverage
Fine For MNPI Failures At Investments Committee The Regulatory Fundamentals Group (December 7, 2021)
Press Coverage
Crowell & Moring Named to "GIR 100" for Seventh Consecutive Year (November 11, 2021)
Firm News / Announcement

For all Highlights, News & Knowledge, please click here to view desktop bio.

Crowell & Moring LLP is an international law firm with offices in the United States, Europe, MENA, and Asia that represents clients in litigation and arbitration, regulatory and policy, and transactional and corporate matters. The firm is internationally recognized for its representation of Fortune 500 companies in high-stakes litigation and government-facing matters, as well as its ongoing commitment to pro bono service and diversity, equity, and inclusion.

View Desktop Site | Mobile Sitemap |

Contact | Subscribe | Terms of Use | Privacy Statement | Alumni

© Crowell & Moring LLP 2022
Attorney advertising - prior results do not guarantee a similar outcome.