Biography

Immediately prior to joining Weil, Andrew served for more than two years as the Co-Chief of the SEC Enforcement Division’s Asset Management Unit (AMU), a national specialized group that focuses on misconduct in the asset management space, including matters involving private equity funds, hedge funds, venture capital funds, mutual funds, ETFs, business development companies, separately managed accounts, valuation and other service providers, audit firms, administrators, and boards. Based in the New York Regional Office, he oversaw a staff of attorneys and industry experts across 11 offices. Under Andrew’s oversight, the AMU brought some of the largest, most consequential SEC enforcement actions, including allegations involving a billion-dollar valuation fraud, a massive market manipulation scheme, multiple cherry picking frauds, conflicts of interest, misleading fees and expenses, violations of Regulation Best Interest, “AI Washing,” misleading marketing, the custody rule, and prohibited joint transactions, among other issues.
Prior to becoming Co-Chief, he served as an Assistant Director in the Unit, and earlier as a senior attorney, working for more than a decade in total on numerous complex investigations, including an industry-wide fraud investigation involving complex, cross-border transactions that led to settlements with fifteen financial institutions. Other matters involved asset managers, broker-dealers, issuers, investment banks and other market participants.
Andrew is a prominent speaker and thought leader. He regularly speaks on and moderates panels, including at events sponsored by major industry organizations, particularly in the asset management space. At the SEC, he regularly conducted Enforcement wide trainings on asset management issues, advised on rulemakings and worked closely with other Divisions, particularly the Division of Examinations. Andrew also worked closely with the Department of Justice, FBI, CFTC, state AG offices, and foreign regulators, and other authorities. Since 2025, he has been a recommended lawyer for Securities Litigation: Defense by Legal 500. Andrew was selected among Lawdragon’s 2025 “500 Global Leaders in Crisis Management” list.
Before joining the SEC in 2012, Andrew practiced at other leading national and international law firms. He received his J.D. from Columbia Law School and B.A. from Fordham University. After law school, he served as a law clerk to the Honorable Leonard B. Sand in the U.S. District Court for the Southern District of New York.
Firm News & Announcements, Awards and Recognition, Speaking Engagements, Latest Thinking
Firm News & Announcements
- Seven Weil Partners Named 2025 Leaders in Crisis Management Firm Announcement — June 16, 2025
- Weil Adds Former SEC Leader Andrew Dean in New York Press Release — January 21, 2025
Awards and Recognition
- Andrew Dean Named a “Recommended” Lawyer for Securities Litigation: Defense in the US Award Brief — Legal 500
- Andrew Dean Named among the “500 Global Leaders in Crisis Management” Award Brief — Lawdragon
Speaking Engagements
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NSCP Regulatory Interchange
Speaker(s):
Andrew B Dean
May 8, 2025 — Weil White Collar partner Andrew Dean moderated an SEC Enforcement panel, “NSCP Regulatory Interchange” as part of a National Society of Compliance Professionals virtual program featuring the SEC.
- Investment Company Institute’s Spring 2025 CCO Committee Meeting Speaker(s): Andrew B Dean — March 19, 2025
Latest Thinking
- Weil Private Funds Regulatory Review Alert — By Chris Mulligan, Chris Scully, David E. Wohl, Andrew B Dean, John H. Bradshaw, Stephen Filocoma and Jake Henry Pero — PDF — July 2025
- Recent Letter to SEC Chairman Highlights Importance of Valuation Issues for Private Fund Advisers Alert — By Andrew B Dean, Chris Mulligan, Chris Scully, Sanjay Wadhwa, David E. Wohl and Greg Burton — PDF — July 07, 2025
- Be Prepared for the Changing Worksite Immigration Enforcement Environment Alert — White Collar Defense, Regulatory and Investigations — By Daniel L. Stein, Andrew B Dean, Sanjay Wadhwa and Michael P. Heffernan — PDF — June 06, 2025
- Recent SEC and DOJ Enforcement Actions and Charges Signal that AI-Washing is Firmly Within the Crosshairs of the Trump Administration Alert — Governance and Securities Enforcement — By Andrew B Dean, Olivia J. Greer, Adé Heyliger, Chris Mulligan, Robert Stern and Sanjay Wadhwa — PDF — May 12, 2025
- 1st Circ. Ruling May Slow SEC Retail Investment Advice Cases Publication — By Andrew B Dean, Chris Mulligan and Chelsea Gonzalez — PDF — April 22, 2025