Filters
Jason Hallam
Last Updated: January 16, 2026
As a Senior Investment Director, my priority is to help my clients achieve their financial goals. By understanding their individual circumstances and financial objectives, I help them to achieve this through discretionary managed portfolios. I mostly specialise in investment management, creating diversified portfolios that are bespoke to the individual client. However just as important is building lasting relationships with clients and professional advisers so that trust can be earned and maintained.
David Owen
Last Updated: July 22, 2025
David graduated in 1987 having read law at The University of Liverpool. David has spent his whole professional career working in Liverpool. His career started in Investment Management in Liverpool with Rensburg & Co where he trained as an equity and bond analyst before moving to portfolio management responsibilities for HNW private clients, pension funds and charities. He now is a Senior Investment Director in the Liverpool office of Rathbones and a Chartered Fellow of the Securities Institute. David served on the board of Edge Hill University for several years.
Neil Mullins
Last Updated: July 22, 2025
Neil began his career with NatWest where he covered several roles in both the private client and commercial sectors before moving to an established Accountancy practise as a trust manager.He has extensive experience in the trust and taxation field advising many individuals and family groups.Neil is a qualified member of the Associate of the Chartered Institute of Bankers (ACIB) and Society of Trust and Estate Practitioners (STEP).
Ryan Cornett
Last Updated: September 30, 2025
I manage investment portfolios for private clients, trusts, charities and corporate entities. This involves working closely with other professionals, such as solicitors, accountants and financial advisers, to build bespoke investment strategies. Putting my clients' best interests first is at the heart of everything I do and is central to my decision-making process.
Leigh Yeaman
Last Updated: July 29, 2025
I am Divisional Director and lead the region of Scotland and Northern Ireland. I also manage portfolios for private clients, trusts, SIPP's, charities and corporate entities. This involves working closely alongside other professionals, including solicitors, accountants and financial advisers, to build and implement bespoke investment strategies for our clients.
Jonathan Dilley
Last Updated: January 16, 2026
Jonathan Dilley is an Associate Investment Director based in Exeter, partnering directly with clients and via trusted intermediaries to manage bespoke discretionary portfolios. He focuses on understanding each client’s goals and objectives—income, growth, risk and liquidity—and turns them into clear, actionable investment strategies supported by proactive reporting and review meetings.
Sam Durnell
Last Updated: January 19, 2026
Sam is an investment director and joined Rathbones in 2024. Prior to Rathbones, Sam worked for twelve years at Brooks Macdonald, managing discretionary multi-asset portfolios on behalf of individuals, families, trusts, charities, corporates and pension funds.
Oliver Whitlock
Last Updated: March 2, 2026
Oliver is an investment manager based in the Winchester office. He joined Rathbones in 2022 having moved from Brooks Macdonald where he worked for five years.
Oliver graduated from Cardiff University with a first class degree in Accounting & Finance. He holds the Investment Advice Diploma (IAD) and Chartered Institute for Securities & Investment (CISI) Wealth Manager Qualification.
Oliver sits on the UK collectives investment committee.
Tamara Marten
Last Updated: December 19, 2025
Tamara works with high-net-worth and ultra-high-net-worth clients, their families and their trusted advisers to provide a seamless and personal wealth management service. Her clients include multi generational families, entrepreneurs, private business owners and senior C suite executives who value discreet, thoughtful and strategic guidance.
Simon Whitmore
Last Updated: January 7, 2026
Simon is an investment director who specialises in the management of private client portfolios, trusts, pensions and charities and is a Chartered Fellow of the Chartered Institute of Securities and Investment. Simon has worked in the financial industry since his graduation in 1991 and he was directly involved in opening the Cambridge office for Rathbones in 2001.
Alexandra Balmer
Last Updated: August 6, 2025
I assist with the investment administration and any specific administrative projects within the team.
Libby Cryer
Last Updated: August 8, 2025
Libby joined Rathbones in December 2021 as a Trainee Investment Manager and was promoted to an Assistant Investment Manager in 2023. Libby works alongside Amos, assisting in managing portfolios.
She has a first-class degree in Psychology from the University of Bristol and worked at Hargreaves Lansdown before joining Rathbones. Libby has completed the CISI Investment Advice Diploma and is currently working towards the Chartered Wealth Management qualification.