Senior Management

Ian Lowitt

Group Chief Executive Officer

Ian Lowitt joined Marex in 2012 as CFO, becoming CEO in 2016. He has previously held senior roles at Barclays Wealth America where he served as Chief Operating Officer. Prior to Barclays, Ian spent 14 years at Lehman Brothers, latterly as CFO and prior to that, as Co-Chief Administrative Officer.

Ian’s background includes expertise in electronics and information technology. He holds degrees in Electrical Engineering and Digital Electronics from the University of the Witwatersrand, South Africa, a BA in Philosophy, Politics & Economics and an MSc in Economics from the University of Oxford, where he was a Rhodes Scholar.

Paolo Tonucci

Group Chief Financial Officer

Paolo Tonucci joined Marex in 2018 as Chief Operating Officer and became Chief Financial Officer in 2020. He was previously at Commonwealth Bank of Australia (Commbank) based in Sydney, where he was Group Treasurer, with responsibility for funding, capital and balance sheet management. Before Commbank, he was Head of Funding and Liquidity at Barclays Bank in London. Prior to Barclays, Paolo spent 12 years at Lehman Brothers in London and New York, latterly as Global Treasurer where he managed a team of 220.

Paolo is a Chartered Accountant and has an MA in Economics from the University of Cambridge.

Simon van den Born


Simon van den Born was appointed President in 2019, having previously been Head of Metals. He joined Marex in 2010 and was appointed to the Board of Marex Group in 2016. He previously spent ten years at Goldman Sachs in the Commodity Index and Metals teams before moving to become a Portfolio Manager at Valhalla Capital Management in 2004.

The Team

The Marex senior management team and the Board that oversees them is made up of individuals with incomparable experience in commodities and financial services.