LOSC Lille U19: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2025-07-01 | Soriba Diaoune | LOSC Lille U19 | LOSC Lille B | — |
| 2024-07-01 | Soriba Diaoune | LOSC Lille U17 | LOSC Lille U19 | — |
| 2024-07-01 | Morgan Costarelli | LOSC Lille U19 | LOSC Lille B | — |
| 2024-07-01 | Mohamed-Amine Ezzarhouni | LOSC Lille U19 | Without Club | — |
| 2024-07-01 | Isaac Cossier | LOSC Lille U19 | LOSC Lille B | — |
| 2024-01-10 | Abdelmajid Djae | LOSC Lille U19 | Dijon U19 | — |
| 2023-07-01 | Younes Lachaab | LOSC Lille U19 | LOSC Lille B | — |
| 2023-07-01 | Mohamed-Amine Ezzarhouni | LOSC Lille U17 | LOSC Lille U19 | — |
| 2023-07-01 | Lilian Baret | LOSC Lille U19 | LOSC Lille B | — |
| 2023-07-01 | Ichem Ferrah | LOSC Lille U19 | LOSC Lille B | — |
| 2023-07-01 | Hakim Sahabo | LOSC Lille U19 | SL16 FC | — |
| 2023-07-01 | Ayyoub Bouaddi | LOSC Lille U19 | Lille | — |
| 2023-07-01 | Adame Faïz | LOSC Lille U19 | LOSC Lille B | — |
| 2023-01-01 | Ayyoub Bouaddi | LOSC Lille U17 | LOSC Lille U19 | — |
| 2022-09-02 | Justin Kalumba | LOSC Lille U19 | Angers SCO U19 | Free |
| 2022-08-24 | Noah Saviolo | LOSC Lille U19 | Vitória SC U19 | Free |
| 2022-07-01 | Younes Lachaab | LOSC Lille U17 | LOSC Lille U19 | — |
| 2022-07-01 | Tom Negrel | LOSC Lille U19 | LOSC Lille B | — |
| 2022-07-01 | Nathan Buayi-Kiala | LOSC Lille U19 | Parma | Free |
| 2022-07-01 | Morgan Costarelli | LOSC Lille U17 | LOSC Lille U19 | — |