Feyenoord U21 (U21 Divisie 1): every transfer in and out, fees paid and earned, squad market value, €935k spent.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-16 | Shiloh 't Zand | Feyenoord U21 | Fortuna Sittard | Loan |
| 2026-07-01 | Tobias van den Elshout | Feyenoord U21 | Feyenoord Rotterdam | Free |
| 2026-07-01 | Yoram Boerhout | Feyenoord U21 | Almere City II | Free |
| 2025-09-15 | Jan Plug | Feyenoord U21 | Feyenoord Rotterdam | Free |
| 2025-08-16 | Luc Netten | Feyenoord U21 | FC Eindhoven | Free |
| 2025-08-09 | Matteo Malasomma | Feyenoord U21 | FC Dordrecht | Loan |
| 2025-08-05 | Matteo Malasomma | Napoli U20 | Feyenoord U21 | Free |
| 2025-07-24 | Lars de Blok | Feyenoord U21 | VVV-Venlo | Free |
| 2025-07-16 | Gabriele Parlanti | Feyenoord U21 | Carrarese | Free |
| 2025-07-04 | Yoram Boerhout | Jong Ajax | Feyenoord U21 | Free |
| 2025-07-02 | Milan Hokke | Feyenoord U21 | ADO Den Haag | Free |
| 2025-07-01 | Kwame Tabiri | FC Dordrecht | Feyenoord U21 | €400k |
| 2025-07-01 | Player | Feyenoord U19 | Feyenoord U21 | Free |
| 2025-07-01 | Player | Feyenoord U19 | Feyenoord U21 | Free |
| 2025-07-01 | Ayoub Ouarghi | Feyenoord U19 | Feyenoord U21 | Free |
| 2025-07-01 | Tobias van den Elshout | Feyenoord U19 | Feyenoord U21 | Free |
| 2025-07-01 | Player | Feyenoord U19 | Feyenoord U21 | Free |
| 2025-07-01 | Player | Feyenoord U19 | Feyenoord U21 | Free |
| 2025-07-01 | Player | Feyenoord U19 | Feyenoord U21 | Free |
| 2025-07-01 | Thijs Kraaijeveld | Feyenoord U19 | Feyenoord U21 | Free |