Matthew Nunan is a partner in the firm’s Dispute Resolution Group. He specializes in white collar defence, investigations and financial services regulation, regularly representing global financial services firms and large corporate clients.
Matt is recognised by The Legal 500 UK 2024 for Regulatory Investigations and Corporate Crime and Financial Services: Non-Contentious Regulatory. In addition, he is recognised by the 2025 edition of Best Lawyers in the United Kingdom as a leading lawyer for Financial Services.
A sample of recent and ongoing representations include:
- JLT Specialty Limited: Matt represented JLT Specialty Limited in proceedings brought by the Financial Conduct Authority in relation to failures of systems and controls which allowed an employee to engage in corruption. Related inquiries were also conducted by a number of other agencies in relation to the same issues, include the US Department of Justice, and the UK Serious Fraud Office.
- Santander: Matt conducted a number of enquiries into concerns relating to the behaviour of senior employees within the Corporate and Investment Bank
- Global Financial Services Firm: Matt represents a global financial services firm in conducting a major multi-year investigation ahead of anticipated litigation in a number of jurisdictions.
- Ericsson: Matt is part of the GDC team advising Ericsson on the potential implications of its guilty plea to previously deferred charges for violations of Foreign Corrupt Practices Act between 2010 and 2016.
Matt joined Gibson Dunn in 2020 from Morgan Stanley, where he held a number of senior positions in the Legal and Compliance Department, including EMEA Head of Conduct Risk. In that role he had responsibility for all internal investigations into allegations of business-related misconduct in the EMEA region, and was responsible for establishing and overseeing the firm’s conduct risk management framework.
Before joining Morgan Stanley Matt spent 6 years at the UK Serious Fraud Office as an investigator and then case controller, followed by 7 years at the Financial Conduct Authority, including as Head of Department for Wholesale Enforcement, overseeing a variety of investigations and regulatory actions including the imposition of fines for LIBOR-related misconduct, convictions for insider dealing and actions against individuals and firms for all forms of market misconduct.
Capabilities
- White Collar Defense and Investigations
- Antitrust and Competition
- Crisis Management
- Financial Institutions
- Financial Regulatory
- International Trade
- Litigation
- Securities Enforcement
- Securities Litigation
- Securities Regulation and Corporate Governance
Credentials
Education:
- University of Manchester - 1993 Bachelor of Laws (LL.B.)
Admissions:
- England & Wales - Barrister