Collective action

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Novel methods of case management & consolidation are emerging in the Competition Appeal Tribunal: Annabel Elliott considers the umbrella proceedings order one year on

The Competition Appeal Tribunal (CAT) has issued its latest ruling in the mega-claim, Merricks v Mastercard Incorporated & ors.

David Pickstone, Darren Kidd & Alexander Lerner examine some positive signs for CPR 19.6 & the future of collective proceedings in England and Wales

The High Court has rejected a bid to strike out a claim brought on an opt-out basis by a representative against a firm of intellectual property lawyers.

‘Both sides are to blame for the situation that has arisen’, the Competition Appeal Tribunal (CAT) has held in a ruling on costs in the multi-billion-pound Merricks v Mastercard claim.

Representatives for Walter Merricks’s £17bn ‘opt-out’ claim against Mastercard have launched the biggest public noticing campaign in legal history.

Mastercard has lost its latest appeal against the Competition Appeals Tribunal (CAT) decision to certify an ‘opt-out’ class action.

Mastercard has been refused permission to appeal the Competition Appeal Tribunal (CAT) judgment greenlighting the claim in the mammoth class action launched by former Financial Ombudsman Walter Merricks.

They’re massive, big money, headline-grabbing and share-price rocking—and possibly coming to a court near you! At least, that’s if the Competition Appeal Tribunal (CAT) continues on its current path of greenlighting opt-out collective proceedings.

The Competition Appeal Tribunal’s desire to breathe life into the collective proceedings regime is clear from its CPO approval rate & reluctance to strike out or summarily dismiss claims: Cameron Laing assesses the impact of its approach thus far

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MOVERS & SHAKERS

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Katten Muchin Rosenman—Charlotte Hill

Katten strengthens financial markets and funds group in London

Hugh James—Keith Cundall & Lee Hart

Hugh James expands national Serious Injury team with two new Partners

HFW—Rémi Ducloyer

HFW continues Paris office growth with public law Partner hire

NEWS

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NLJ this week: Mazur ruling offers CILEX a fresh start

The Court of Appeal's decision in Mazur v Charles Russell Speechlys LLP has lifted months of uncertainty for Chartered Legal Executives while prompting a rethink of regulation and supervision

NLJ this week: Assisted dying proposal faces next parliamentary test

The assisted dying debate returns to Westminster as Lauren Edwards MP reintroduces legislation that stalled in the House of Lords last session despite clearing the Commons

NLJ this week: New offence rules widen corporate criminal exposure

A little-noticed provision of the Crime and Policing Act 2026 has fundamentally expanded corporate criminal liability

NLJ this week: AI shortcuts leave lawyers facing courtroom fallout

Artificial intelligence is transforming legal practice, but careless reliance on it is creating growing professional risks

NLJ this week: Why cohabitees may be better protected after death

The law offers cohabiting couples surprisingly greater protection after one partner dies than when they separate during life

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Collective action

MOVERS & SHAKERS

Katten Muchin Rosenman—Charlotte Hill

Hugh James—Keith Cundall & Lee Hart

HFW—Rémi Ducloyer