Leduc will retain his CIO role at Boston-based Standish, the fixed-income arm of BNY Mellon Investment Management.
He joined the firm in 1995 as a portfolio manager and analyst and has been CIO for the past five years.
Standish, with insurance companies among its clients for many years, has $160bn of assets under management (AuM). BNY Mellon Investment Management has AuM of $1.7trn.