1200 New Hampshire Avenue, NW
Washington, DC 20036
United States of America

+1 (202) 974-5687

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Keith M. Rosen


Keith M. Rosen is an experienced trial and appellate advocate who spent over ten years conducting investigations, litigating, and supervising federal criminal cases with the United States Department of Justice. He has worked extensively on matters involving federal law enforcement agencies, the Securities and Exchange Commission, as well as other federal and state regulatory agencies. Mr. Rosen has successfully tried numerous complex criminal cases, and has briefed and argued many federal appellate matters.

He has handled a wide range of subject matters as both a prosecutor and defense counsel, including financial institution fraud, securities fraud, public corruption, export enforcement, tax fraud and economic espionage. He has also represented public and private corporations, and their chief executives, in connection with Congressional investigations. In addition, he has provided strategic advice on patent matters pending trial in the United States District Court for the District of Delaware.

Mr. Rosen's current practice focuses on civil and criminal litigation, special investigations, regulatory compliance and enforcement.

Representative Matters

  • Represented multiple corporations in connection with Congressional investigations into the administration of the Department of Energy's loan guarantee program.
  • Advised Turkish corporation on anti-corruption and corporate governance issues.
  • Advised South American consumer products company on U.S. export control issues.
  • Representing foreign corporation in connection with civil asset forfeiture complaint.
  • Represented AIPAC lobbyist charged under the Espionage Act.
  • Represented private corporation in connection with public corruption investigation.
  • Represented domestic energy company in connection with multi-jurisdictional securities fraud investigation concerning the sale of oil and gas prospects.
  • Represented individual defendant charged with federal tax evasion and fraud offenses.

As the Chief of the Criminal Division for the United States Attorney's Office for the District of Delaware, Mr. Rosen managed the legal work of the Criminal Division and supervised all appeals in criminal cases before the United States Court of Appeals for the Third Circuit. He also coordinated the District's Anti-Terrorism Advisory Committee. His work as an Assistant United States Attorney included the following:

  • Prosecuted one of the early cases under the Economic Espionage Act, involving theft of proprietary pricing trade secret information.
  • Conducted securities fraud investigation involving manipulation of the over-the-counter stock market.
  • Investigated and prosecuted insider trading case against network security manager of major corporate law firm.
  • Prosecuted multi-million dollar fraud case involving small-business credit operations of major U.S. financial institution.
  • Prosecuted fraud case involving syndicated loan operations of major U.S. financial institution.
  • Conducted public corruption investigation and trial of president of municipal services organization.

Activities and Affiliations

  • As an Assistant United States Attorney, Mr. Rosen was a member of the U.S. Department of Justice Securities and Commodities Fraud Working Group, and a participant in the SEC Mid-Atlantic Regional Enforcement Conference.



Practice Areas

Commercial Litigation

Securities Litigation and Regulatory Enforcement

White Collar Defense, Regulatory Investigations and Litigation




North America

United States


  • Brown University, A.B., magna cum laude, 1993
  • Yale Law School, J.D., Senior Editor, Yale Law Journal, 1997

Professional Background

  • Law clerk to the Honorable Edward R. Becker, United States Court of Appeals for the Third Circuit, 1997-1998
  • Assistant United States Attorney, Criminal Division, United States Attorney's Office for the District of Delaware, 1999-2005
  • Chief, Criminal Division, United States Attorney's Office for the District of Delaware, 2007-2012



District of Columbia




U.S.D.C. - E.D. Pa.


U.S. Ct. App. - 3rd Cir.