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Clifford Chance

Clifford Chance
Ben Jasper

Ben Jasper

Partner

Partner
Ben Jasper

Ben is a Partner in the Litigation & Dispute Resolution group in London, specialising in antitrust enforcement and litigation. He is particularly known for challenging and overturning decisions of the CMA and advising defendants and claimants in antitrust litigation, including in 8 trials before the UK courts.

Antitrust damages claims

Recent experience includes:

  • EE in its successful defence of a High Court claim brought by the administrators for Phones4U against multiple defendants relating to breaches of Article 101/Chapter I (Phones4U Limited v EE & ors [2023] EWHC 2826, here).
  • A group of leading football agencies in an arbitration which held that rules proposed by the Football Association and FIFA were in breach of Chapters I/II of the UK Competition Act (here).
  • Two pharmaceutical companies in defence of follow-on damages claims arising from the EC’s decision in Citalopram.
  • A bank in the FDIC v Barclays and ors LIBOR litigation in the High Court. We also represented the bank in the European Commission investigations into interest rate derivatives (EIRDs) and a portfolio of related litigation in the UK and other jurisdictions (including a class action in Israel).
  • A defendant company in a claim for damages against the CRT/CRT glass cartels.

Antitrust appeals before the Competition Appeal Tribunal

Experience includes:

  • Pfizer in its successful appeal before the CAT and the Court of Appeal against CMA’s decision in phenytoin which imposed a fine of £82.4m (CMA v Pfizer and Flynn [2020] EWCA 617, here)
  • Pfizer in its successful appeal before the Supreme Court, which held that costs can be recovered in successful CA98 appeals against the CMA (Pfizer and Flynn v CMA [2022] UKSC 14, here)
  • A private equity firm in the appeals against the CMA’s decision in hydrocortisone which imposed fines of over £260m (Advanz and ors v CMA [2023] CAT 57), successfully overturning the CMA’s decision relating to the alleged agreements.
  • A private equity firm in the appeals against the CMA’s decision in liothyronine which imposed fines of over £100m (Advanz and ors v CMA [2023] CAT 52, here), successfully obtaining a reduction in fines.
  • Two pharmaceutical companies in their partially successful appeal before the Competition Appeal Tribunal against the CMA’s decision in paroxetine and in subsequent follow-on damages claims (GSK and ors v CMA [2018] CAT 4, here)
  • A private equity firm in the appeals against the CMA’s decision in prochlorperazine which imposed fines of over £35m.

Antitrust investigations

Experience includes:

  • A bank in the CMA investigation into UK financial services.
  • A pharmaceutical company in the context of the CMA's investigation into phenytoin I and phenytoin II.
  • A corporate in a European Commission investigation into the use of seller data on its online store.

Commercial litigation

Experience includes: 

  • Various v News Group Newspapers (defending News Group in the phone hacking litigation).
  • Advising a company in defence a claim for breach of confidence.  

News and client work

View all news and client work featuring Ben Jasper

Contact details

Career and qualifications

  • Wadham College, University of Oxford, (MA in Modern History) 2008
  • Wadham College, University of Oxford (M.Phil in Politics) 2010
  • Joined Clifford Chance 2012
  • Seconded to the antitrust group in Clifford Chance's Brussels office 2013
  • Admitted as a solicitor in England & Wales 2014

Professional bodies

  • Governor, Ark Greenwich Free School since 2012

Awards and citations

  • Rising Star
    Legal 500: Competition Litigation 2019 & 2020