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Sean T Prosser

Sean T Prosser

SEC Enforcement, Shareholder Litigation, and White-Collar Defense Lawyer
  • Securities Law, White Collar Crime, Stockbroker & Investment Fraud ...
  • California
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Sean Prosser defends clients facing investigations and enforcement actions by the U.S. Securities and Exchange Commission (SEC), U.S. Department of Justice (DOJ), including FBI and Grand Jury proceedings, and other government agencies. He also defends companies and their executives in shareholder litigation. With offices in San Diego and Los Angeles, Sean leads Mintz Levin’s California Securities Litigation practice. His clients include public and private companies, officers and directors, board committees, broker-dealers, banks, investment advisors, hedge funds, CPAs, individual stock traders and public officials. Sean regularly represents clients before the following agencies and regulators: U.S. Securities and Exchange Commission (SEC); U.S. Department of Justice (DOJ); Financial Industry Regulatory Authority (FINRA); NYSE; NASDAQ and other stock exchanges; California Department of Corporations; U.S. Department of the Treasury, including Financial Crimes Enforcement Network (FinCEN) and Office of Foreign Assets Control (OFAC); Public Company Accounting Oversight Board (PCAOB); and Internal Revenue Service (IRS).

Practice Areas
    Securities Law
    White Collar Crime
    Stockbroker & Investment Fraud
    Gov & Administrative Law
    Administrative Law, Election Law, Government Contracts, Government Finance, Legislative & Government Affairs
    Criminal Law
    Criminal Appeals, Drug Crimes, Expungement, Fraud, Gun Crimes, Internet Crimes, Sex Crimes, Theft, Violent Crimes
Additional Practice Areas
  • SEC Investigation Defense
  • Securities Litigation
  • Corporate Governance
  • Free Consultation
    I will provide a free telephone consultation to determine if we are the right attorneys to handle you matter.
  • Rates, Retainers and Additional Information
    We typically bill on an hourly basis.
Jurisdictions Admitted to Practice
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9th Circuit
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11th Circuit
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Professional Experience
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.
- Current
Perkins Coie LLP
- Current
Morrison & Foerster LLP
Fish & Richardson LLP
Brobeck, Phleger & Harrison
Gilchrist & Rutter, P.C.
Attorney, Office of Enforcement, Los Angeles, CA
U.S. Securities and Exchange Commission (SEC)
Law Clerk, Office of Broker-Dealer Enforcement, New York, NY
U.S. Securities and Exchange Commission (SEC)
New York Law School
J.D. (1992) | Law
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University of Pennsylvania
B.A. (1986) | English
Activities: Varsity Football
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San Diego SuperLawyer (2010-2019)
Best Lawyer (2010-2019)
Best Lawyers in America
Recognized by Best Lawyers in America for Securities Litigation, Mergers & Acquisitions Litigation, SEC Enforcement Litigation, and Corporate Compliance & Corporate Governance Law, 2010 - 2017
“Lawyer of the Year,” Securities Litigation
Best Lawyers in America
Lawyer of the Year, Corporate Governance
Best Lawyers of America
Recommended for Merger Litigation (2012 - 2014)
Legal 500 (US)
Professional Associations
State Bar of California  # 163903
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Association of SEC Alumni
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Websites & Blogs
Sean T. Prosser, SEC Enforcement, Securities Litigation & White Collar Defense Lawyer
Contact & Map
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.
2029 Century Park East
Suite 3100
Los Angeles, CA 90067
Telephone: (424) 259-4004
Mintz, Levin, Cohn, Ferris, Glovsky and Popeo, P.C.
3580 Carmel Mountain Road
Suite 300
San Diego, CA 92130
Telephone: (858) 314-2152
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