Fiona was appointed a Commissioner in April 2026 having spent over three decades in the financial services industry as both a regulator and senior executive, giving her a practical understanding of regulation from both sides of the relationship. 

She retired at the end of 2025 from an executive career at Citigroup where she served as CEO of Citibank UK Limited, governing the firm's Trust and Fiduciary business and the wind-down of its UK retail banking operation. She also operated as London Branch Head of Citibank Europe Plc, overseeing businesses including a first-to-market digital Transfer Agency. Before becoming a board member, she held responsibility for the protection of client money, custody assets and eligible deposits in large banking groups. Earlier in her career she undertook supervision, policy and risk roles at the UK Securities & Futures Authority, the Financial Services Authority and left the Financial Conduct Authority for industry roles shortly after its formation. 

Fiona holds an MA in Corporate Governance, is a Chartered Member of the Chartered Governance Institute, and holds a CISI Certificate in Ethical Artificial Intelligence. She also sits on the Risk & Audit Committee of The Royal Kennel Club, was until recently a member of the Chartered Institute for Securities & Investment's International Committee and a member of the Financial Services Group of the London Livery Companies.