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Matthew Porpora is a partner in the Firm’s Litigation Group and a member of the Criminal  Defense and Investigations Group. Mr. Porpora represents leading global companies and financial institutions in regulatory and criminal investigations, as well as in a wide variety of high-stakes, complex commercial litigations, including federal RICO, securities, antitrust, banking, commodity manipulation, fraud, and labor and employment actions. Mr. Porpora has successfully navigated his clients through investigations by the U.S. Department of Justice, the U.S. Securities and Exchange Commission, and other federal and state agencies, as well as in regulatory enforcement proceedings involving allegations of money laundering and sanctions violations. He also has defended his clients in large-scale, bet-the-company class actions across the country, often stemming from regulatory and criminal investigations he has handled, in which he has taken a leading role in joint defense groups, arguing on behalf of all defendants in seeking (and often securing) dismissal of claims.


Mr. Porpora’s recent practice has focused on representing a number of financial institutions in investigations and fending off related class actions concerning alleged benchmark interest rate-rigging and manipulation of commodities pricing. In the litigations, Mr. Porpora has successfully secured dismissal of various securities, antitrust, RICO, Commodity Exchange Act, and state law claims. For example, Mr. Porpora secured dismissal of all LIBOR-related claims against Barclays in an action in California federal court and successfully defended that dismissal before the Ninth Circuit Court of Appeals, and he secured dismissal of all claims against two different financial institution clients in a high-exposure class action concerning allegations of SIBOR and SOR manipulation. Mr. Porpora also has been playing a leading role in representing Fiat Chrysler Automobiles in defending against a class action advancing RICO, Consumer Protection Act, implied warranty, fraud and other state law claims concerning Fiat Chrysler Automobiles’ use of allegedly defective airbags.


Mr. Porpora clerked for the Honorable Nina Gershon of the U.S. District Court for the Eastern District of New York from 2006 to 2008. He has been recognized as one of the “500 Leading Litigators in America” by LawDragon (2023).


For more information, visit:
https://www.sullcrom.com/Lawyers/Matthew-J-Porpora


Updated Aug 2023