SIX promotes Santos to Head of REGIS-TR
24 March 2025 Luxembourg

SIX has promoted María Santos to head of REGIS-TR, effective 1 April, succeeding Thomas Steimann who is set to retire.
Santos has been working at REGIS-TR as a managing director since March 2024, where she was responsible for client, regulatory, and business development, as well as product departments.
She also led the REGIS-TR’s migration to the SIX Group, after the firm acquired Clearstream’s remaining 50 per cent stake in March 2022.
Before joining REGIS-TR, Santos held various management positions within the company.
Between 2019 and 2024, Santos worked at Iberclear, a subsidiary of Bolsas y Mercados Españoles (BME) which serves as Spain's central securities depository.
José Manuel Ortiz, interim head of Securities Services at SIX, comments: “[María Santos’] extensive experience and leadership in the industry will be invaluable as we continue to innovate and enhance our services.”
Santos has been working at REGIS-TR as a managing director since March 2024, where she was responsible for client, regulatory, and business development, as well as product departments.
She also led the REGIS-TR’s migration to the SIX Group, after the firm acquired Clearstream’s remaining 50 per cent stake in March 2022.
Before joining REGIS-TR, Santos held various management positions within the company.
Between 2019 and 2024, Santos worked at Iberclear, a subsidiary of Bolsas y Mercados Españoles (BME) which serves as Spain's central securities depository.
José Manuel Ortiz, interim head of Securities Services at SIX, comments: “[María Santos’] extensive experience and leadership in the industry will be invaluable as we continue to innovate and enhance our services.”
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