M. Donaldson St. Mirren U21 → Cowdenbeath · 2022-07-01

D. Struthers St. Mirren U21 → Cowdenbeath · 2022-07-01

D. McManus East Kilbride → St. Mirren U21 · 2021-08-01

C. Law St. Mirren U21 → Stirling Albion · 2020-07-01

K. Girvan St. Mirren U21 → Stranraer · 2022-07-01

J. Walker St. Mirren U21 → Annan Athletic · 2019-10-18

A. McCaw Annan Athletic → St. Mirren U21 · 2021-07-01

C. Breadner St. Mirren U21 → Caledonian Braves · 2022-10-01

O. Foster St. Mirren U21 → Cumbernauld Colts · 2024-10-15

M. Campbell St. Mirren U21 → ST Mirren · 2023-01-06

B. Hutchingson St. Mirren U21 → Bo'ness United · 2025-01-17

O. Foster St. Mirren U21 → Alloa Athletic · 2025-07-10

Theo McCormick Dumbarton → St. Mirren U21 · 2026-01-24

J. Farquhar St. Mirren U21 → Cumbernauld Colts · 2025-07-17