Swiss financial infrastructure group SIX announced Tuesday that Rafael Moral Santiago, Head of Securities Services and Member of the Executive Board, has left the company with immediate effect after just over a year in the role.
Marion Leslie, Head of Financial Information and a fellow Executive Board member, will assume interim responsibility for the Securities Services business unit while a permanent successor is identified, subject to the required regulatory approvals.
Moral Santiago joined SIX in May 2025 and, according to the company, made contributions to the development of the business unit and helped advance a number of strategic and operational initiatives during his tenure.
“On behalf of the Executive Board and the Board of Directors, I would like to thank Rafael for his commitment and contribution over the past year,” said Bjørn Sibbern, Chief Executive of SIX. “I would also like to thank Marion for taking on the additional responsibility during this transition period, while continuing to lead SIX Financial Information successfully.”
SIX said the Securities Services unit remains well positioned and focused on delivering for clients, noting growth across all core products and service segments. The company added that it will communicate the permanent succession once a decision has been reached.
Leslie’s dual responsibility spans two of SIX’s core business areas. SIX operates critical financial infrastructure across securities services, financial information and banking services, serving clients across Switzerland and international markets. No reason was given for Santiago’s departure.
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