Santander UK has appointed Mahesh Aditya as its new chief executive officer, effective 1 March 2026, replacing Mike Regnier who is stepping down from the role. Aditya currently serves as Group Chief Risk Officer at Banco Santander.
Aditya was appointed to the Santander UK boards on 1 October 2025.
BACKGROUND
Before taking on the Group Chief Risk Officer position at Banco Santander, Aditya spent six years at Santander's United States arm.
Mike Regnier will depart upon Aditya's arrival. Regnier announced in October 2025 that he would step down after four years in the role, ahead of the TSB integration.
TSB INTEGRATION
Aditya will also oversee the integration of TSB once Santander's acquisition of the bank is completed.