Napoli U20: every transfer in and out, fees paid and earned, squad market value, €4.1m spent and €150k earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2025-09-11 | Matija Popović | Napoli U20 | CSKA Moscow | Free |
| 2025-07-18 | Mattia Esposito | Napoli U20 | Team Altamura | — |
| 2025-01-31 | Francesco Gioielli | Napoli U20 | Puteolana | Free |
| 2024-09-25 | Claudio Turi | Napoli U20 | Napoli | — |
| 2024-07-01 | Luigi D'Avino | Napoli U19 | SSC Napoli | — |
| 2024-07-01 | Lorenzo Russo | Napoli U19 | SSC Napoli | — |
| 2024-06-30 | Ciro Borrelli | Salernitana U19 | Napoli U19 | Free |
| 2024-01-25 | Matija Popović | Napoli U19 | Monza | Loan |
| 2024-01-24 | Matija Popović | Partizan U19 | Napoli U19 | Free |
| 2023-07-26 | Gennaro Iaccarino | Napoli U19 | Monopoli | Free |
| 2023-07-01 | Mattia Esposito | Napoli U17 | Napoli U19 | — |
| 2022-07-15 | Coli Saco | Napoli U19 | Pro Vercelli | Free |
| 2022-07-01 | Luigi D'Avino | Napoli U17 | Napoli U19 | — |
| 2022-07-01 | Lorenzo Russo | Napoli U17 | Napoli U19 | — |
| 2022-07-01 | Hubert Idasiak | Napoli U19 | SSC Napoli | — |
| 2022-07-01 | Claudio Turi | Napoli U17 | Napoli U19 | — |
| 2022-07-01 | Antonio Vergara | Napoli U19 | Napoli | — |
| 2021-09-16 | Coli Saco | Without Club | Napoli U19 | — |
| 2021-07-01 | Francesco Gioielli | Napoli U17 | Napoli U19 | — |
| 2020-09-17 | Francesco Mezzoni | Napoli U19 | Feralpisalò | Free |