Ruston Smith left his role as group pensions director at Tesco PLC, Cheshunt, England, at the end of March, said a spokesman.
Mr. Smith will continue to work for Tesco in a non-executive capacity as chairman of the trustee board for the U.K. pension scheme and Tesco Pension Investment Ltd., the spokesman added in an email.
Tesco Pension Investment manages the assets of the £8 billion ($10.3 billion) Tesco Pension Scheme.
The spokesman declined to comment further on Mr. Smith's replacement.