Marion Leslie

Marion Leslie joined SIX in January 2020 as Head Financial Information at SIX Group and a member of the SIX Executive Board. She is also a member of the BME Board of Directors. As Head Financial Information, Marion leads the SIX global data business, serving financial institutions worldwide with critical data and insights to support their clients.

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 was Managing Director, Enterprise at Refinitiv (London Stock Exchange) with responsibility for delivering market data, platforms and services to the global financial markets.

Marion was included in the World Federation of Exchanges Women Leaders List 2021 and was named one of the 100 Most Influential Women in European Finance by Financial News in 2020 and 2021. In 2017, she was nominated in the Cranfield University Female FTSE 100 Women to Watch Board Report and in 2014 was the winner of the Award for Achievement at the Women in Banking and Finance Awards.

In June 2021 Marion, was appointed to the board of Advance, the leading business association for gender equality in Switzerland and has been a Trustee at Prostate Cancer UK since 2016.

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