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Class Actions and Group Litigation

Allen & Overy handles a broad range of class action and group litigation, including securities law violations, financial services mis-selling, shareholder activism, antitrust follow-on damages and bankruptcy cases.

Our global team of litigation, securities and antitrust experts has handled and resolved class actions and collective redress cases in virtually every significant jurisdiction.

Our work includes advising:

  • A global financial institution on a series of class actions alleging manipulation and collusion in the market for U.S. Treasury securities.
  • A European bank in defence of U.S. class actions, clawback and damages claims in a European country and other litigation involving a cross-border tax-efficient structured finance transaction hedged with various derivatives trades.
  • A major financial institution in government investigations focused on potential manipulation of security and commodity-based volatility indices and trading of related financial derivatives, and related class action lawsuits based on Commodity Exchange Act and Sherman Act claims.
  • Mercuria Energy Trading, Inc. and Mercuria Energy Trading S.A. in the antitrust class action cases captioned In re North Sea Brent Crude Oil Futures Litigation. The complaint alleges that the world’s leading energy traders conspired to manipulate the benchmark price of crude oil.
  • A seafood products company in a grand jury investigation and class action litigation involving allegations of price-fixing.
  • Dr. Joseph M. Feczko, the former Chief Medical Officer of Pfizer Inc., in a securities class action brought against Pfizer and five former executives by a class of investors alleging that the defendants misrepresented the safety risks of Pfizer’s arthritis medications, Celebrex and Bextra.

News and insights

Exterior of a modern glass and metal building

Publications: 18 September 2023

Directive 1828/2020 sur les actions représentatives et réforme des actions de groupe en France

La directive (UE) 2020/1828 a créé un socle commun pour les actions de groupe au sein de l’Union Européenne, qui devrait conduire le Parlement français à adopter, dans les prochains mois, une réforme…

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Publications: 28 April 2023

New rules for arbitration under Luxembourg law: A modern and flexible framework for dispute resolution

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Publications: 18 January 2023

La délinquance en col blanc en France, 2022 : aperçu des évolutions, tendances et perspectives

À l’occasion de son rapport annuel consacré aux grandes évolutions législatives et judiciaires relatives à la délinquance en col blanc, le cabinet Allen & Overy revient sur les principales…

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Cloudy blue sky seen through a hole in the middle of a sculpture

Publications: 08 December 2022

Le clair-obscur du régime de la convention judiciaire d’intérêt public

Depuis sa création, la convention judiciaire d’intérêt public suscite les passions. Les conventions récentes continuent néanmoins de mettre en lumière les améliorations à apporter au système actuel.

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Compact contract

A brief look at topical issues in contract law

A blog where experts from Allen & Overy analyse the latest contract law themes and developments, and what they mean for your business.