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Jonathan Green counsels public and private companies, investment advisers, broker-dealers, boards of directors, and individuals on disclosure issues, compliance procedures, and proactive strategies designed to mitigate legal, regulatory, and reputational risks. Jon also represents clients in internal and government investigations, litigation, and arbitrations by evaluating allegations, reviewing evidence, assessing risk, and identifying tactics to achieve the best results. He brings his extensive public service — first as Senior Counsel in the SEC's Division of Enforcement and later as a supervisory Assistant U.S. Attorney in the Eastern District of New York — to help clients navigate compliance, regulatory, and disclosure issues.

During his tenure as an Assistant U.S. Attorney in the Eastern District of New York, Jon investigated, prosecuted and tried to verdict criminal matters involving allegations of securities fraud, money laundering, mortgage fraud and violations of the Foreign Corrupt Practices Act (FCPA), among others. He also established and led the Eastern District's Mortgage Fraud Task Force where he supervised the combined efforts of numerous federal and state law enforcement agencies. Jon also served as Deputy Chief of the Office's General Crimes Section, was twice awarded the "Excellence In Criminal Litigation" Award and was presented with the DOJ's Director's Award for superior performance as an Assistant U.S. Attorney. As a former Senior Counsel in the Division of Enforcement of the SEC, Jon investigated and prosecuted cases involving accounting improprieties, market manipulation, public company disclosure issues, insider trading, unregulated securities offerings, broker-dealer compliance matters, FCPA violations, and investment advisor regulations.

Jon received his J.D. from Seton Hall University School of Law, where he was a member of the Law Review and Moot Court Board. He clerked for Honorable Dora L. Irizarry, a United States District Judge for the Eastern District of New York.


  • Numerous multinational financial services firms, broker dealers, investment advisers and their employees in connection with investigations from the SEC, CFTC, DOJ, FINRA, SROs and other regulators.
  • Multinational financial services firm in connection with an SEC investigation relating to Fair Value accounting treatment of certain asset-backed securities.
  • Two investment advisors with a combined AUM over $150 billion in connection with an SEC initiative relating to alleged conflicts of interest in the collection of 12b-1 fees.
  • Global real estate investment fund in connection with various internal investigations and related matters.
  • Private equity fund in connection with an SEC investigation of a portfolio company.
  • SPAC sponsors and investors in litigations and SEC investigations.
  • Non-party Robert Bosch in connection with its early stage investment in EV startup Nikola, and resulting SEC and DOJ scrutiny of Nikola and its founder.
  • Several clients in FINRA arbitrations.
  • Several NYSE-listed companies in connection with SEC investigation relating to accounting charges.
  • Private company in response to allegations of fraud under the CARES Act.
  • Professional global sports association in connection with multiple DOJ investigations concerning allegations that athletes have participated in corrupt match-fixing schemes across the globe.
  • Audit firm in response to an SEC investigation regarding the valuation of highly illiquid assets.
  • Tax accountant in a tax trial relating to the validity of a charitable deduction.
  • Charity facing an investigation from the New York Attorney General's Charity Bureau.
  • NYSE listed Greek shipping and fuel logistics company in conducting an internal investigation relating to almost $200 million in suspicious assets recorded on the company's books.
  • Residential property management company and related individuals in connection with a joint investigation involving the United States Attorney's Office for the Eastern District of New York (USAO EDNY) and the New York City Department of Investigation (DOI).
  • CEO of a commodity pool operator in connection with a SEC and CFTC investigation relating to valuation of assets. This representation concluded with no charges filed against the CEO.
  • CEO of a mobile technologies company facing a criminal investigation relating to alleged securities fraud. This representation concluded with no charges filed against the CEO.
  • Traders in connection with LIBOR and ISDAFIX investigations.
  • Investment advisor facing an SEC insider trading investigation.
  • Executive of a foreign automobile parts manufacturer facing scrutiny from the DOJ antitrust division.
  • Investigations relating to the mortgage crisis, including prosecutions for defrauding Fannie Mae and other purchasers in the secondary markets.


The Legal 500 US
M&A/Corporate and Commercial: Corporate Governance (2019)
Corporate Investigations and White-Collar Criminal Defense (2015, 2017)
Benchmark Litigation
Future Star – White Collar (2024)
Under 40 Hot List (2016)
U.S. Attorney's Excellence in Criminal Litigation Award
Two-time recipient



  • J.D., Seton Hall University School of Law, 2001
  • B.A., Political Science, Florida State University, 1998


  • New York
  • New Jersey

Government & Military Service

  • Senior Counsel, Division of Enforcement, Securities and Exchange Commission
  • Assistant U.S. Attorney, U.S. Attorney's Office, Eastern District of New York


  • U.S. District Court, Eastern District of New York, The Honorable Dora L. Irizarry


  • Faculty, National Advocacy Center