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

SIX has promoted Mar穩a 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-TRs migration to the SIX Group, after the firm acquired Clearstreams 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 Espa簽oles (BME) which serves as Spain's central securities depository.
Jos矇 Manuel Ortiz, interim head of 厙惇勛圖 Services at SIX, comments: [Mar穩a 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-TRs migration to the SIX Group, after the firm acquired Clearstreams 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 Espa簽oles (BME) which serves as Spain's central securities depository.
Jos矇 Manuel Ortiz, interim head of 厙惇勛圖 Services at SIX, comments: [Mar穩a Santos] extensive experience and leadership in the industry will be invaluable as we continue to innovate and enhance our services.
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