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Sub practice

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

Greater China, Lang Yue

Publications: 28 February 2022

Greater China Risk Insight: Looking ahead in the Year of the Tiger

The last two years have reshaped the global economy and socioeconomic policies, and have given rise to new risks and challenges. The world of disputes is also rapidly evolving. As we look back to…

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Person using laptop, security icon on sceen.

Blog Post: 02 February 2022

Netherlands: One of the first major privacy class actions dismissed by Court of Amsterdam

The entire privacy community waited anxiously for the outcome of the EUR 11 billion class action claim, launched in the summer of 2020 by The Privacy Collective (TPC) against several Oracle and…

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Modern buildings with mirrored glass reflecting a blue sky

Publications: 02 December 2021

Representative actions – “same interest” test proves a high bar

The UK Court of Appeal endorsed a strict approach to the “same interest” test when it upheld a decision to strike out the representative element of a claim brought on behalf of 27,800 individuals and…

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Person using laptop

Blog Post: 29 November 2021

Beyond Lloyd v Google: Are class actions for data breach dead?

The decision of the UK Supreme Court in Lloyd v Google is a welcome relief for data controllers. However, is it the end of class actions for data breach?

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Compact contract

Wooden jenga blocks scattered across a table

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.