Jonathan is a partner in the Litigation practice.

Jonathan has significant and versatile experience advising a wide range of clients, including financial institutions, corporates and professional services firms, on a range of domestic and cross border disputes covering amongst other things financial services, cross-jurisdictional insolvencies, competition damages actions, financial fraud, TMT and contentious regulatory matters.

Many of Jonathan’s matters have a cross-border element and he is experienced dealing with complex multi-party, multi-jurisdictional matters involving foreign laws, including in relation to the enforcement of arbitral agreements and awards.

Jonathan was recently recognized as a Rising Star by The Legal 500 for Banking Litigation.

• Centrica/British Gas in relation to a high-profile English High Court judicial review/subsidy control claim in relation to a multi-billion pound government subsidy granted in connection with Octopus Energy's acquisition of Bulb (in administration)
• A major global bank in a significant multi-party and cross border competition damages action in the High Court and Competition Appeal Tribunal relating to the widely-publicised alleged manipulation of global FX markets by various banks between 2003-2013.
• ICE in relation to various disputes with market participants and regulators.
• ENKA in ENKA v OOO "Insurance Company Chubb", obtaining an anti-suit injunction restraining Russian proceedings brought in breach of an arbitration agreement. The Supreme Court’s decision, upholding that of the Court of Appeal to grant the anti-suit relief sought by ENKA, is an important clarification of the English Court's supervisory role in relation to arbitrations seated in the jurisdiction, including in particular the principles determining the applicable law of an arbitration agreement. Enka v Chubb was named the "Most Important Decision of the Year" by the Global Arbitration Review in 2021 and Shearman & Sterling’s representation of ENKA was shortlisted for the award for Best Arbitration Team of the Year at the 2021 British Legal Awards.  
• A global financial institution in relation to multiple sets of proceedings in the English High Court, and courts of Belgium, the Netherlands and other countries, involving various complex cross-jurisdictional issues relating to the enforcement of a $500 million arbitral award and $22 billion asset freeze obtained by third parties in the Dutch and Belgian courts against the Republic of Kazakhstan. Directors in their defence of an unfair prejudice petition.
• A FTSE100 company in relation to a major IT outage affecting its business globally.
• A large UK building supplies company in connection with a contentious IT transformation project.
• One of the largest UK pension funds in relation to the exiting of a major IT transformation project.
• A major accounting firm as liquidators of the Saad group of companies in its multi-billion dollar dispute with the Saudi-based Algosaibi family, including in relation to the largest trial in Cayman Islands’ history and one of the largest ever financial frauds, and numerous related insolvency proceedings and satellite litigation in Saudi Arabia, Bahrain, Switzerland, UK and the USA.
• A big Four firm in connection with Lehman Brothers' UK administration.
• Certain of the c. 11,000 bondholders in London Capital & Finance in relation to judicial review proceedings and other related disputes in respect of a decision by the Financial Services Compensation Scheme not to compensate the majority of bondholders following LC&F’s high-prolife collapse in 2019.
• Warner-Discovery in relation to various commercial and competition disputes with content providers and distributors in the UK/Europe.
• An investment fund in its High Court damages claim against another fund in respect of an options agreement arising in connection with a high prolife restructuring in the paper industry.
• A Big Four firm as special liquidators of Irish Bank Resolution Corporation Limited, including proceedings in the High Court and other disputes arising in connection with the bank's liquidation.