Red Star U18: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-01-01 | Vasilije Subotic | Red Star U18 | Red Star U19 | — |
| 2025-07-01 | Vasilije Subotic | Red Star U17 | Red Star U18 | — |
| 2024-08-16 | Djordje Petrovic | Red Star U18 | OFK Beograd U19 | Free |
| 2024-07-01 | Dragan Tegeltija | Red Star U18 | Red Star U19 | — |
| 2024-02-16 | Dragan Tegeltija | Red Star U18 | OFK Beograd U19 | Loan |
| 2023-07-01 | Dragan Tegeltija | Red Star U17 | Red Star U18 | — |
| 2023-07-01 | Djordje Petrovic | Unknown | Red Star U18 | — |
| 2022-07-01 | Boris Matic | Red Star U18 | Red Star U19 | — |
| 2022-01-01 | Nemanja Vidojevic | Red Star U18 | Red Star U19 | — |
| 2021-07-01 | Nemanja Vidojevic | Red Star U17 | Red Star U18 | — |
| 2021-07-01 | Boris Matic | Red Star U17 | Red Star U18 | — |