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Jonathan E. Green

Jonathan E. Green

Complex Commercial Litigation Department

New York
T: +1 212 836 8478
F: +1 212 836 8689

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Legal Services


  • Seton Hall University School of Law
    JD, 2001, Law Review, Moot Court Board
  • Florida State University
    BA, Political Science, 1998

Bar Admission(s)

  • New York

Jonathan Green is a partner in the Complex Commercial Litigation Department and a member of the White Collar Litigation and Internal Investigations Group. Jonathan’s practice focuses on securities regulatory and enforcement matters, government and corporate investigations and white collar criminal defense.

Prior to joining the firm, Jonathan was an Assistant US Attorney in the Eastern District of New York where he tried numerous cases to verdict. He investigated and prosecuted criminal matters involving allegations of securities fraud, money laundering, mortgage fraud and violations of the Foreign Corrupt Practices Act (FCPA), among others. Additionally, Jonathan established and led the Eastern District’s Mortgage Fraud Task Force as Mortgage Fraud Coordinator and served as Deputy Chief of the Office’s General Crimes Section.

In addition to his service at the US Attorney’s Office, Jonathan held the position of Senior Counsel in the Division of Enforcement of the Securities and Exchange Commission, where he led investigations involving allegations of market manipulation, insider trading, fraudulent and unregistered securities offerings, accounting improprieties and public company disclosure.

Jonathan also served as a law clerk to the Hon. Dora L. Irizarry of the United States District Court for the Eastern District of New York.

Representative Matters

Since joining the firm, Jonathan has conducted numerous internal investigations for global financial services companies concerning potential issues arising under the federal securities laws and the FCPA, among other laws and regulations.

Jonathan has also represented issuers, global financial services companies, hedge funds, private equity funds and individuals in response to DOJ, SEC, CFTC and FINRA inquiries relating to:

  • insider trading;
  • market manipulation;
  • accounting practices;
  • LIBOR manipulation;
  • mortgage-backed securities;
  • Regulation M violations;
  • antitrust violations; and
  • violations of FINRA rules.

Examples of this work include his:

  • Multinational financial services firms in connection with inquiries from the SEC, CFTC, DOJ, FINRA, SROs and other regulators.
  • Multinational financial services company in connection with an SEC, SIGTARP and DOJ investigation concerning allegations relating to improprieties of trading RMBS and CMBS.
  • Public company facing an SEC investigation concerning alleged accounting improprieties.
  • Former COO of a commodity pool operator in connection with a CFTC investigation and litigation by a receiver for the commodity pool operator.
  • CEO of a commodity pool operator in connection with an SEC investigation relating to valuation issues.
  • CEO of a mobile technologies company facing a criminal investigation relating to securities fraud.
  • Traders in connection with LIBOR and ISDAFIX investigations.
  • Special committee of the board of a private equity fund portfolio company in connection with an internal investigation.
  • Charity facing an investigation from the New York Attorney General’s Charity Bureau.
  • Automobile parts manufacturer in an antitrust matter in Japan.
  • Individuals in a small investment advisory firm in connection with a FINRA investigation.

While at the US Attorney’s Office and Securities and Exchange Commission, Jonathan investigated and prosecuted securities fraud, mortgage fraud, FCPA violations, accounting improprieties and other white collar-matters, including:

  • Investigations relating to the mortgage crisis, including prosecutions for defrauding Fannie Mae and other purchasers in the secondary markets. 
  • FCPA investigations involving multinational financial institutions. 
  • Fraudulent offering and market-manipulation securities fraud cases. 
  • A “marking the close” case involving the manipulation of the closing price of a NYSE-listed security.

Speaking Engagements

A frequent speaker on a range of topics, including securities fraud, internal investigations the FCPA and the financial crisis, Jonathan previously served as a member of the faculty of the National Advocacy Center, a training institute for Assistant US Attorneys nationwide.

Honors and Awards

  • In 2016, Jonathan was named to Benchmark Litigation’s “Under 40 Hot List” which honors the achievements of the nation’s most accomplished partners age 40 or younger.
  • In 2015, Jonathan was recognized for his shareholder litigation expertise by Legal 500 US.
  • Jonathan is a two-time recipient of the US Attorney’s Excellence in Criminal Litigation Award.
  • In 2011, Jonathan was awarded the Department of Justice Director’s Award for Superior Performance by a Litigative Team for his work as an AUSA.