Mariano Belinky was named head of Santander Asset Management, a spokeswoman said.
Mr. Belinky replaced Juan Manuel San Roman, who is leaving the firm for personal reasons, the spokeswoman added.
"By combining Santander's experience and expertise in asset management with the group's technological capabilities, we can transform the services we offer our clients," said Victor Matarranz, head of wealth management, in a news release. "(Mr. Belinky) has an outstanding track record in driving innovation and delivering for customers."
Mr. Belinky was previously head of Santander InnoVentures, the bank's $200 million fintech investment fund, which he has led for the past three years. Following Mr. Belinky's departure, Manuel Silva will continue to head the Santander InnoVentures investment team and Mario Aransay will continue to lead portfolio partnerships for the fund, the spokeswoman said.
Santander Asset Management has €182 billion ($227 billion) in assets under management.