Feyenoord U21: every transfer in and out, fees paid and earned, squad market value, €535k spent and €3.8m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-02-02 | Thijs Kraaijeveld | Feyenoord U21 | Feyenoord | — |
| 2025-09-15 | Aymen Sliti | Feyenoord U21 | Feyenoord | — |
| 2025-08-18 | Jayden Candelaria | Feyenoord U21 | NAC Breda | €50k |
| 2025-07-01 | Tobias van den Elshout | Feyenoord U19 | Feyenoord U21 | — |
| 2025-07-01 | Thijs Kraaijeveld | Feyenoord U19 | Feyenoord U21 | — |
| 2025-07-01 | Shaqueel van Persie | Feyenoord U19 | Feyenoord U21 | — |
| 2025-07-01 | Jaden Slory | Feyenoord U21 | Feyenoord | — |
| 2025-02-04 | Mannou Berger | Feyenoord U21 | FC Dordrecht | Loan |
| 2025-01-31 | Korede Osundina | Feyenoord U21 | Casa Pia | €250k |
| 2024-08-29 | Jaden Slory | Feyenoord U21 | FC Dordrecht | Loan |
| 2024-07-11 | Nesto Groen | Feyenoord U21 | Excelsior | €200k |
| 2024-07-01 | Tidjany Touré | Feyenoord U21 | Gil Vicente | €30k |
| 2024-07-01 | Shiloh 't Zand | Feyenoord U21 | Feyenoord | — |
| 2024-07-01 | Mike Kleijn | Feyenoord U21 | Sparta R. | Free |
| 2024-07-01 | Ismail Ka | Feyenoord U18 | Feyenoord U21 | — |
| 2024-07-01 | Djomar Giersthove | Feyenoord U18 | Feyenoord U21 | — |
| 2024-07-01 | Aymen Sliti | Feyenoord U18 | Feyenoord U21 | — |
| 2024-01-11 | Luc Netten | NEC Nijmegen | Feyenoord U21 | Free |
| 2023-09-01 | Leo Sauer | Feyenoord U21 | Feyenoord | — |
| 2023-09-01 | Korede Osundina | Feyenoord U21 | FC Dordrecht | Loan |