Marion Leslie joined SIX Group in January 2020 as Head Financial Information and a member of the SIX Executive Board. As Head Financial Information, Marion Leslie leads the SIX global data business, serving financial institutions worldwide with critical data and insights to support their clients. She is also the representative on the Executive Board for Sustainability.
Leading global businesses and operations at scale, with a strong emphasis on data and technology, are the hallmarks of her career in financial services. Prior to joining SIX, Marion Leslie was Managing Director, Enterprise at Refinitiv (London Stock Exchange) with responsibility for delivering market data, platforms and services to the global financial markets. Before that, she held a variety of executive roles within London Stock Exchange Group, having joined Reuters in 1994. Marion Leslie holds a Post Graduate Certificate in Education in French and German from the University of Cambridge.
She was named one of the 100 Most Influential Women in European Finance by Financial News every year from 2020-2023, was listed as one of Swiss Finance’s Women to Watch in 2022, and was included in the World Federation of Exchanges Women Leaders List 2021.
Other Activities and Mandates
