Kustošija U19 (U19 League): every transfer in and out, fees paid and earned, squad market value and €300k earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2025-07-29 | Lovro Chelfi | Kustošija U19 | Barcelona U19 | €300k |
| 2025-07-03 | Haris Berbic | Kustošija U19 | Sloga Doboj | Free |
| 2024-09-10 | Haris Berbic | Buducnost Banovici | Kustošija U19 | Free |
| 2024-08-30 | Niko Tomasevic | Kustošija U19 | RB Leipzig U21 | Free |
| 2019-07-01 | Jan Jurcec | Kustošija U19 | Kustošija | Free |