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Desktop Image: Crimmins, Stephen
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Stephen J. Crimmins

Partner

T 202.661.7031 Washington, D.C.
T 212.880.3624 New York
M 202.317.0037
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Steve Crimmins defends enforcement matters involving the Securities and Exchange Commission and other financial regulators. He advises clients during regulatory inquiries, investigations, and testimony. He advocates in meetings, white papers, and SEC Wells submissions for closing letters terminating investigations, and negotiates consent decree settlements. When needed, he fights for clients in federal court trials, administrative proceedings, and appeals.

Based on peer surveys, Best Lawyers in America named Steve its 2026 "Lawyer of the Year" for Securities Regulation in New York City (as it had in 2017), and has ranked him nationally since 2006 for securities litigation and securities regulation. Chambers USA has ranked him nationally since 2009 for "complex and sensitive" SEC enforcement matters, with "significant strength in financial fraud and accounting issues," and reported 2026 peer comments calling him a "very tough and strong advocate," an "excellent trial lawyer," "detail oriented," and "a real leader of the SEC enforcement Bar." Securities Docket named him to its "Enforcement Elite."

Steve testified three times before Congress, including House Financial Services Committee hearings in 2019 on proposed SEC enforcement legislation, and in 2011 on "Fixing the Watchdog" with current and former SEC Commissioners. He has chaired the securities law sections of both the Federal Bar Association and the D.C. Bar. He presents professional panels, including PLI's Hedge Fund and Private Equity Enforcement and Regulation 2025, and Securities Docket's Enforcement Forum 2025. He publishes on SEC developments, including a detailed analysis of modern insider trading law in the Columbia Business Law Review (noted in The Economist), SEC-related articles in the Columbia Blue Sky Blog, and a chapter in PLI's SEC Compliance and Enforcement Answer Book (2025). He has guest-taught securities law classes and symposia at Columbia, Georgetown, Maastricht (Netherlands), and other law schools.

During 14 years at the SEC, Steve co-managed it's Enforcement Division's Trial Unit where he prosecuted securities cases in federal courts around the country and in administrative proceedings. Beginning as a trial counsel at SEC headquarters, he continued to personally try cases while managing other trial lawyers as an SEC senior officer. He earned the SEC's Productivity Improvement Award for management results. A Brooklyn native, he graduated from Columbia Law School and began his career at a large New York law firm.

Since leaving the SEC, Steve has been a partner at Mayer Brown LLP, and K&L Gates LLP, and finally at SEC defense boutique Murphy & McGonigle PC (recognized in 2021 and 2022 as the national "Securities Regulation Law Firm of the Year" by Best Lawyers in America), which combined with Davis Wright Tremaine.

Since returning to private practice after 14 years in the SEC's Trial Unit, Steve has advocated for clients in investigations and litigation spanning the SEC enforcement program, including the following:

  • Completed depositions and briefed cross-motions for summary judgment in SEC revenue recognition litigation. (2025)
  • Obtained SEC closing letter terminating an investigation of private fund in a dealer registration matter. (2025)
  • Represented a client preparing for four days of trial testimony as the principal government witness in a case charging Ponzi-like scheme raising over $1.7 billion from 17,000 investors. (2024)
  • Obtained an SEC closing letter confirming, following multiple white papers, the SEC was terminating an investigation of broker-dealer firm in a municipal securities matter. (2024)
  • Prepared detailed white paper demonstrating client's efforts over ten years to comply with an SEC industry bar order. (2024)
  • Wells submission resulting in SEC closing letter terminating investigation as to a CFO of large investment adviser in an SEC case settled by his firm. (2023)
  • Wells submission resulting in SEC closing letter terminating Enforcement Division and Office of General Counsel a joint investigation as to a lawyer in a Ponzi matter that resulted in SEC and DOJ criminal charges against the lawyer's client. (2023)
  • Administrative dismissal by SEC Commissioners of case charging front-running following a two-week trial before an SEC administrative law judge. Matter of Gibson , 2023 WL 3790795 (June 2, 2023).
  • Multiple Wells submissions resulting in SEC closing letter terminating investigation as to a General Counsel of an investment adviser in an SEC case settled by his firm and other senior executives. (2022)
  • Represented CEO of a substantial public company in preparing for and providing testimony in SEC case settled by his company and another executive. (2022)
  • Multiple Wells submissions and detailed negotiations resulting in settlement of SEC and CFTC disclosure claims against a commodity pool and commodity pool operator. Matter of United States Commodity Funds LLC, 2021 WL 5205955 (SEC Nov. 8, 2021).
  • Represented a financial services firm's CCO not charged in SEC case settled by his firm and another executive. (2021)
  • White paper resulting in SEC closing letter terminating insider trading investigation of a hospitality industry CEO, with no charges. (2020)
  • Following two years of federal court litigation, settled SEC revenue recognition charges in 2019 against a former CEO without an officer director bar and with the SEC dropping all scienter allegations. SEC v. Jacoby (Osiris Therapeutics Inc.), 2019 WL 5300064 (D. Md. Oct. 17, 2019).
  • As pool counsel, defended over 30 officers and employees, none charged, in 2018-2019 internal and follow-on SEC investigations of revenue recognition charges settled by their public company. Matter of ComScore Inc., 2019 WL 4640439 (SEC Sept. 24, 2019).
  • Represented a consultant and foundation board member not charged in 2019 in SEC litigation against a digital token issuer. SEC v. Kik Interactive, 2019 WL 2387042 (S.D.N.Y. June 6, 2019).
  • Following federal court litigation, settled SEC charges in 2019 against a securities trader involving alleged record-keeping violations. SEC v. Mattessich et al., 407 F.Supp.3d 264 (S.D.N.Y. 2019).
  • Settled layering and spoofing charges brought by FINRA in 2018 against the controlling person of funds pursuing global day-trading strategies. FINRA AWC 2012031480722 (reported in Wall Street Journal, Sept. 18, 2018, p. B1).
  • Settled SEC insider trading charges against an attorney without admissions or professional bars. 2018 WL 3993822 (Aug. 21, 2018).
  • Successfully defended the nation's leading self-directed IRA custodian at a multi-week trial before an SEC administrative law judge resulting in a decision dismissing all charges. On full Commission review, obtained a unanimous decision by the SEC Commissioners affirming the firm's trial win on expanded grounds. Matter of Equity Trust Co., 2017 WL 4335067 (SEC Sept. 28, 2017).
  • As lead trial counsel in 2017, settled one day before trial without admissions an SEC proceeding relating to an investment adviser's recommendations to public pension plans. Matter of Gray Financial Group Inc., 2017 WL 5624487 (Nov. 22, 2017).
  • Wells submission resulting in SEC closing letter as to senior executive of large financial services firm in SEC case settled by his employer that related to mutual fund share class recommendations. 2017 WL 4064192 (Sept. 14, 2017).
  • Orally argued and briefed a successful motion to dismiss federal and state RICO and common law fraud claims (opposing counsel who had drafted the federal RICO law). Goldberg v. Kanegis, Case No. 13-22491 (Miami-Dade County Circuit Court, Complex Business Litigation Division Nov. 12, 2016).
  • Represented a managing director of a private equity adviser in SEC investigation and in no-admission settlement by the firm and four executives in a case alleging omissions relating to conflicts of interest and payments to affiliates. Matter of Fenway Partners LLC, 2015 WL 6689228 (Nov. 3, 2015).
  • Joining defense team as lead appellate counsel, presented oral argument and submitted briefs that persuaded the U.S. Court of Appeals for the 7th Circuit to reverse summary judgment against an investment adviser's general counsel in the first litigated insider trading case involving fund shares. SEC v. Bauer, 723 F.3d 758 (7th Cir. 2013). On remand to the trial court, obtained summary judgment dismissing the remainder of the case, 2014 WL 4267412 (Aug. 29, 2014).
  • White paper and oral presentation resulting in SEC closing letter terminating investigation without charges as to executive at a major financial services firm in a matter settled by firm that involved structuring and marketing of several collateralized debt obligation transactions. Matter of Merrill Lynch, Pierce, Fenner & Smith Inc., 2013 WL 6503674 (December 12, 2013).

Admitted to Practice

  • District of Columbia
  • Massachusetts
  • New York
  • U.S. Supreme Court

Education

  • J.D., Columbia Law School
    • Articles Editor, Columbia Journal of Law and Social Problems
  • B.A., Fordham University

Professional Recognition

    • Named one of "America's Leading Lawyers for Business" by Chambers USA in Securities: Regulation: Enforcement (Nationwide), 2009-2026
    • Named as the "Lawyer of the Year" for Securities Regulation in New York City by Best Lawyers, 2017, 2026
    • Named one of the "Best Lawyers in America" by Best Lawyers in Litigation - Securities and Securities Regulation, 2006-present
    • Named to "Enforcement Elite" by Securities Docket, 2024

Background

    • Deputy Chief Litigation Counsel, Securities and Exchange Commission
    • Partner, Mayer Brown LLP
    • Partner, K&L Gates LLP
    • Shareholder, Murphy & McGonigle, P.C. (and successor McGonigle, P.C.)
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