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Antonio J. Perez-Marques

Mr. Perez-Marques is a partner in Davis Polk’s Litigation Department. His practice spans complex commercial litigation, including securities and M&A-related litigation, as well as securities enforcement and white collar matters. He also has extensive experience advising Spanish, Latin American and other foreign clients concerning U.S. litigation matters, and domestic clients concerning overseas and cross-border disputes.


Work Highlights

Selected Recent and Current Representations 
  • A global bank in connection with investigations by the U.S. Department of Justice (DOJ), the Office of Foreign Assets Control (OFAC), Manhattan District Attorney’s Office and others related to sanctions issues
  • A Fortune 100 corporation in connection with an OFAC investigation of trade sanctions issues
  • The Brazilian state-owned electric utility in federal securities class action litigation based on allegations of corruption arising from the Brazilian Lavo Jato investigation

  • DBRS, Inc., a nationally recognized statistical rating organization, in connection with a recently settled enforcement action brought by the U.S. Securities and Exchange Commission (SEC) related to surveillance of RMBS ratings

  • Standard & Poor’s Ratings Services in connection with investigations, examinations and enforcement actions brought by the SEC and state attorneys general

  • Morgan Stanley in federal litigation, through trial preparation, related to a $9 billion structured investment vehicle (SIV) backed in part by subprime mortgage-backed securities, including the defeat of class certification and grant of partial summary judgment

  • Morgan Stanley in various state and federal litigations related to residential mortgage-backed securities and collateralized debt obligations (CDOs)

  • Enel S.p.A. and Enelpower S.p.A. in U.S. litigation to enforce an alleged €433 million judgment of an Albanian court related to an agreement to develop a hydroelectric plant in Albania

  • Special committee of SWS Group in shareholder class action litigation challenging its acquisition by Hilltop Holdings

  • The Solomon R. Guggenheim Foundation in litigation by descendants of Peggy Guggenheim challenging the management of the Peggy Guggenheim Collection in Venice

  • Comcast Corporation in shareholder class action litigation challenging its announced acquisition of Time Warner Cable

  • Guy Carpenter (a Marsh & McLennan Company) in litigation related to the no-hire provision of a non-disclosure agreement signed in contemplation of an M&A transaction

  • Royalty Pharma in litigation related to hostile takeover bid for Elan Corporation plc

  • A European oil and gas company in U.S. litigation related to expropriation of South American subsidiary

  • Comcast Corporation in parallel state court and FCC proceedings through trial against the National Football League

  • A Fortune 100 corporation in criminal bribery investigations, through the acquittal at federal jury trial of two former executives, with no charges against or settlement by the company

FCPA Practice
  • Fortune Global 100 corporation in an SEC investigation related to business with a state-owned company in South Africa
  • Advised on the design and implementation of comprehensive FCPA compliance program for clients, including Siemens AG
  • Led investigations, post-closing due diligence and other FCPA compliance reviews in Argentina, Brazil, Colombia, Costa Rica, the Dominican Republic, Ecuador, Germany, Guatemala, Mexico, South Africa and Switzerland
  • Delivered FCPA training in English and Spanish to clients in the United States, Europe, Asia and South America
Pro Bono
  • Argued and won Fourth Amendment search case before the New York Court of Appeals (People v. Graham Reid, 24 N.Y.3d 615 (2014))
  • Successfully represented Everytown for Gun Safety as amicus curiae before the U.S. Supreme Court in case holding that reckless domestic assault qualifies as a "misdemeanor crime of domestic violence" that prohibits firearms possession by convicted felons under 18 U.S.C. § 922(g)(9) (Voisine v. United States, 136 S. Ct. 2272 (2016))
  • Pending representation of Everytown for Gun Safety as amicus curiae before the U.S. Supreme Court in case concerning as-applied challenges to prohibitions on possession of firearms by felons (Boente v. Binderup, No. 16-847)


  • Mr. Perez-Marques is a member of Davis Polk’s leading Securities Litigation Group, which was named:

    • Chambers USA – Securities Litigation: Band 1
    • The American Lawyer – “Securities Litigation Department of the Year” finalist, 2014
    • Law360 –  “Securities Group of the Year,” 2013

Professional History

  • Partner, 2011-present
  • Associate, 2002-2011


  • 450 Lexington Avenue
    New York, NY
    P: +1 212 450 4559
    F: +1 212 701 5559

Bar Admissions

  • State of New York
  • U.S. Supreme Court
  • U.S. Court of Appeals, First Circuit
  • U.S. Court of Appeals, Second Circuit
  • U.S. Court of Appeals, Ninth Circuit
  • U.S. District Court, S.D. New York


  • A.B., Princeton University, 1999
    • magna cum laude
  • J.D., New York University School of Law, 2002
    • cum laude
    • Allen Scholar


  • Spanish