Margaret Graham, a former federal prosecutor, represents clients in high-stakes investigations, enforcement actions, and civil lawsuits, including matters involving complex financial crime, crisis management, civil rights and equity-related issues, and artificial intelligence (AI).

Margaret leverages extensive civil, government, investigative, and trial experience, as well as strong relationships with a broad network of government officials and lawyers, to counsel clients on their most sensitive matters involving:

  • White-collar defense
  • Internal investigations
  • Securities litigation
  • Complex commercial litigation
  • Business decisions and enforcement issues relating to AI and other technologies

She applies wide-ranging industry experience, particularly in AI and financial services, to provide strategic advice to financial institutions, technology companies, educational institutions, and other clients.

Before joining Latham, Margaret served for almost 11 years in the US Attorney’s Office for the Southern District of New York (SDNY), where she held several prominent roles, including Deputy Chief of the Criminal Division and Acting Chief of the General Crimes Unit. Margaret also served as Co-Chair of SDNY’s Artificial Intelligence Working Group, coordinating efforts on AI matters and liaising with other government agencies on AI issues.

During her tenure, including five years as a member of SDNY’s Securities and Commodities Fraud Task Force, Margaret investigated, tried, and supervised some of SDNY’s most sensitive and complicated white-collar matters, including two of SDNY’s most significant recent corporate resolutions. Margaret led nine jury trials to verdict and argued and briefed more than 15 cases before the US Court of Appeals for the Second Circuit.

As the Deputy Chief of the Criminal Division, Margaret supervised the Securities and Commodities Fraud Task Force, Illicit Finance and Money Laundering Unit, and the Narcotics Unit. In this role, she oversaw cases involving a broad spectrum of financial fraud, including cryptocurrency fraud, securities fraud, accounting and valuation fraud, market manipulation, insider trading, sanctions violations, BSA/AML violations, civil and criminal forfeiture, and other matters. 

Margaret served for five years as an adjunct professor of clinical law at New York University School of Law, where she taught criminal law.

After law school, she clerked for Judge Kenneth M. Karas of the US District Court for the Southern District of New York and Judge Gerard E. Lynch of the US Court of Appeals for the Second Circuit. 

Margaret’s notable experience includes:

  • Representing OpenAI in a series of copyright lawsuits that will establish the boundaries of fair use as applied to generative AI 
  • Representing an AI company in connection with a DOJ investigation related to product and financial disclosures, resulting in no action
  • Representing multiple AI companies in connection with DOJ and SEC investigations
  • US v. Gregoire Tournant – Investigated and charged chief investment officer of large investment adviser with a years-long complex securities fraud that resulted in over US$8 billion of investor losses; criminally charged investment adviser itself, resulting in over US$5 billion in penalties*
  • Block Trading – Investigated block trading practices, leading to non-prosecution agreement with large investment bank and payment of US$249 million in penalties*
  • US v. Stephen Buyer – Tried and convicted former congressman of insider trading*
  • US v. James Velissaris – Prosecuted founder and chief investment officer of investment adviser for largest mismarking scheme ever prosecuted, involving more than US$1 billion of overvalued positions*
  • US v. Victor Bozzo, et al. – Investigated and charged CEO and CFO of a publicly traded telecommunications company with accounting fraud*

*Matter handled prior to joining Latham

Bar Qualification

  • New York

Education

  • JD, New York University School of Law, 2011
    magna cum laude, Order of the Coif, IILJ Scholar
  • AB, Dartmouth College, 2004
    summa cum laude, Phi Beta Kappa
Badges and Logos_Law360_Fintech Group of the Year_2024
February 20, 2025 Recognition

Fintech Group of the Year: Latham

Firm honored by Law360 for advising startups, financial institutions, VCs, digital asset and Web3 participants, and corporations on their most innovative and complex transactions, investigations, litigation, and regulatory matters.