NEC U21: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-01-01 | Omar Mohamedhoesein | NEC U21 | Barendrecht | Free |
| 2025-07-01 | Yousri Sbai | NEC U21 | NEC Nijmegen | — |
| 2024-07-01 | Thomas Reinders | NEC U21 | NEC Nijmegen | — |
| 2024-07-01 | Mauro Zijlstra | NEC U21 | Volendam U21 | Free |
| 2024-07-01 | D'Leanu Arts | NEC U21 | NEC Nijmegen | — |
| 2024-01-26 | Kian Donkers | NEC U21 | VVV-Venlo U21 | — |
| 2023-07-01 | Yousri Sbai | NEC U21 | Without Club | Loan |
| 2023-07-01 | Rijk Janse | NEC U21 | NEC Nijmegen | — |
| 2023-07-01 | Luc Netten | NEC U21 | NEC Nijmegen | — |
| 2023-07-01 | D'Leanu Arts | PSV U21 | NEC U21 | Free |
| 2023-01-31 | Kian Donkers | Cashmere Tech | NEC U21 | — |
| 2023-01-13 | Daan Maas | NEC U21 | TOP Oss | Loan |
| 2022-07-01 | Yousri Sbai | NEC U18 | NEC U21 | — |
| 2022-07-01 | Thomas Reinders | NEC U18 | NEC U21 | — |
| 2022-07-01 | Rijk Janse | Sparta U21 | NEC U21 | Free |
| 2022-07-01 | Omar Mohamedhoesein | Feyenoord U17 | NEC U21 | Free |
| 2022-07-01 | Nils Rossen | NEC U21 | NEC Nijmegen | — |
| 2022-07-01 | Mauro Zijlstra | AFC U18 | NEC U21 | Free |
| 2022-07-01 | Luc Netten | PSV U17 | NEC U21 | Free |
| 2022-07-01 | Kas de Wit | NEC U21 | NEC Nijmegen | — |