Matthew S. Leddicotte

Counsel, Washington, DC


Matthew combines his role as one of the Firm’s “e-discovery gurus” with extensive experience representing clients in high-stakes complex litigation, investigations, and international arbitrations.


Matthew S. Leddicotte represents domestic and foreign clients in complex civil litigation at both the trial and appellate levels, as well as in government investigations and proceedings. A significant part of his practice focuses on issues of international law and federal government regulation, including trade regulation and antitrust matters. He also has experience representing clients in international dispute resolution through arbitration, including proceedings before the International Centre for the Settlement of Investment Disputes (ICSID) and the International Chamber of Commerce (ICC).

Bars and Courts
District of Columbia Bar
US District Court for the District of Columbia
US Court of Appeals for the District of Columbia Circuit
US Court of Appeals for the Second Circuit
US Court of Appeals for the Third Circuit
US Court of Appeals for the Fourth Circuit
Georgetown University Law Center
George Washington University


Antitrust challenge to pharmaceutical settlement agreement
Counsel to Boehringer Ingelheim in antitrust challenge to a patent litigation settlement agreement and other business arrangements between BI and a generic manufacturer.

Consolidated price-fixing class action
Lead counsel defending Etron Technology, Inc., a Taiwanese semiconductor manufacturer, in class-action civil litigation and DOJ criminal grand jury investigation alleging a price-fixing cartel in SRAM products.

Price-fixing cartel investigation and follow-on litigation
Defended senior executive of a Jones Act shipping company in DOJ price-fixing cartel investigation and follow-on shareholder class action alleging securities fraud; won dismissal of claims in the District of Delaware and won appeal in Third Circuit.

Anti-Terrorism Act and Alien Tort Statute litigation
Successful defense of premier Saudi bank alleged to have financially supported terrorism. Won pre-trial dismissal of consolidated multidistrict actions claiming over US$1 billion in the Southern District of New York; won appeal in Second Circuit and successfully opposed US Supreme Court review.

Reversal of spoliation sanction
Successful representation of a large Saudi travel agency on appeal and on remand in district court.  The Fourth Circuit vacated the US$10 million judgment based on spoliation sanction.

Bank investigation related to benchmark interest rates
Represented of a global financial institution before the DOJ and CFTC in connection with investigations into possible violations of federal and state antitrust and fraud laws, as well as the Commodities Exchange Act arising from the institution's activities related to benchmark interest rates including Libor and Euribor.

Republic of the Philippines
Successfully secured the dismissal of approximately US$510 million in claims against the Republic of the Philippines in an investment treaty arbitration before the International Centre for Settlement of Investment Disputes (ICSID) and approximately US$585 million in claims in a related international commercial arbitration before the International Court of Arbitration of the International Chamber of Commerce (ICC). The arbitrations related to a concession to construct and operate an international airport passenger terminal.

Zorlu Enerji Elektrik Üretim A.Ş.
Successfully defended a Turkish energy company in a Swiss Rules arbitration and related litigation in the New York Supreme Court brought by its partners alleging breaches of contractual and fiduciary duties in connection with a joint venture to construct and operate two gas-fired power plants in the Russian Federation.

Awards and Recognition

Matthew Leddicotte was named a "Litigator of the Week" by Global Competition Review for securing reversal of class certification in the Asacol® product-hopping litigation.