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Martine M. Beamon

Ms. Beamon, a partner in Davis Polk’s Litigation Department and a former federal prosecutor, has successfully represented individuals and institutions in their most critical situations.

Her matters have included grand jury, regulatory and independent investigations, and representing both companies, board of directors and individuals in connection with allegations of insider trading, commodities fraud, market manipulation and other securities fraud, foreign corrupt practices, pharmaceutical marketing violations and other types of misconduct,  among other areas. Her complex civil matters have involved allegations under the False Claims Act, consumer protection and whistleblower provisions, and other state and federal statutes. Ms. Beamon also has participated in a number of confidential internal investigations on behalf of clients facing potential criminal and regulatory exposure and has advised corporate boards of directors and subcommittees on matters of corporate governance and compliance. In addition, the FBI requested that she train its agents on insider trading.

Ms. Beamon served as an Assistant U.S. Attorney for the U.S. Attorney’s Office, Southern District of New York, from 1995 to 2000, where she conducted numerous investigations and criminal trials.

Work Highlights

Recent Representations
  • Major professional services firms, financial institutions and other companies in investigations involving the Department of Justice, the SEC and other regulators
  • A major financial institution in connection with an FCPA investigation involving hiring practices
  • A multinational company in connection with sensitive allegations of sexual misconduct
  • A Swiss bank in a criminal tax investigation by DOJ
  • A major financial institution in the global criminal and regulatory inquiries into allegations of manipulations of foreign exchange benchmarks

  • Liquidnet, a dark pool, in connection with an SEC investigation into the use of confidential customer data, which was resolved with a non-fraud settlement

  • A high-frequency trading firm in connection with an SEC multidisciplinary inquiry relating to the high-frequency trading industry, which ended without enforcement action

  • A major financial institution in matters involving the mismarking of commodities positions, including one which resulted in no action by the CFTC after a multiyear investigation

  • A major financial institution in connection with an SEC investigation involving the firm’s controls regarding surveillance of trading

  • Numerous broker-dealers, hedge funds and other financial institutions in an array of investigations relating to alleged insider trading, market manipulation, improper short selling, and other transgressions

  • A major financial institution in connection with an SEC inquiry into the practices of one of its electronic trading platforms

  • A biotechnology company in connection with a Foreign Corrupt Practices Act investigation by DOJ and the SEC
  • A major financial institution in connection with allegations of manipulation of the LIBOR
  • A major professional services firm in connection with investigations by DOJ and the SEC
  • The former Chief Compliance Officers of two major financial institutions in connection with federal criminal and state regulatory investigations
  • The special committee of the board of directors of a health-care company in an internal investigation
  • Government contractors responding to civil investigative demands ("CIDs") and reporting requirements under the Federal Acquisition Regulation ("FAR") in connection with regulatory approvals and contracting issues
  • Major pharmaceutical companies in a number of matters, including federal grand jury investigations relating to FDA issues, as well as related civil and regulatory matters, including a civil suit under the False Claims Act
  • The Chairman, President and Chief Executive Officer of Forest Laboratories, Howard Solomon, in connection with a proceeding by the Office of Inspector General, Department of Health and Human Services

Because of the nature of Ms. Beamon’s assignments, many of her most successful matters have not resulted in public charges and remain confidential.


Ms. Beamon is consistently recognized for her work in the legal industry, including:

  • Chambers USA – White Collar Crime and Government Investigations
  • Benchmark Litigation – "Star": National and  New York; “Top 250 Women in Litigation”
  • Ethisphere – “Attorneys Who Matter,” 2014

  • Best Lawyers in America

  • Who’s Who LegalInternational

Of Note

  • Global Advisory Board Member, Women in Law Empowerment Forum
  • Member, Lawyers Committee, Innocence Project 
  • Member, Board of Directors, Federal Defenders of New York
  • Member, Board of Directors, Prisoners’ Legal Services of New York

  • Member, Lawyers Council, Citizens Crime Commission of New York City

  • Founder, SDNY AUSA Alumnae Group

Professional History

  • Partner, 2004-present
  • Associate, Davis Polk, 1992-1993; 2000-2004 
  • Assistant U.S. Attorney, U.S. Attorney’s Office, Southern District of New York, 1995-2000
  • Rejoined Davis Polk in 2000 following her public service
  • Law Clerk, Hon. Denis R. Hurley, U.S. District Court, E.D. New York, 1993-1995


  • 450 Lexington Avenue
    New York, NY
    P: +1 212 450 4262
    F: +1 212 701 5262

Bar Admissions

  • State of New York
  • U.S. Court of Appeals, Second Circuit
  • U.S. District Court, E.D. New York
  • U.S. District Court, S.D. New York


  • B.A., University of Notre Dame, 1989
    • with honors
  • J.D., University of Pittsburgh School of Law, 1992
    • summa cum laude
    • Valedictorian
    • Symposium Editor, Law Review