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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 & insights

Aerial view of winding internal staircase

News: 26 FEBRUARY 2021

A&O partners with Young Citizens for Justice Week 2021

LONDON – Allen & Overy has once again partnered with Young Citizens to help deliver the Big Legal Lesson, as part of Justice Week 2021. 

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ground image of skyscraper building with sunlight passing through

Publications: 24 FEBRUARY 2021

Why investors should care about their portfolio companies infringing competition law

Financial investors, including private equity businesses, can be held liable for competition law infringements committed by one of their portfolio companies.

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Oil spill representative action attempt fails to meet same interest threshold

Publications: 22 SEPTEMBER 2020

Oil spill representative action attempt fails to meet “same interest” threshold

Harrison Jalla & Ors v (1) Royal Dutch Shell Plc (2) Shell International Trading & Shipping Co Ltd (3) Shell Nigeria Exploration & Production Co Ltd [2020] EWHC 2211 (TCC) Representative elements of a…

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Publications: 28 JANUARY 2020

Top UK finance litigation and contract law developments in 2019

This is a round-up of the most interesting finance litigation and contractual developments in 2019. The selection is necessarily subjective and draws from a wide range of cases and developments that…

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Compact contract

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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.

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