Basaksehir U19: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2025-01-01 | Halit Emre Acun | Basaksehir U19 | Basaksehir | — |
| 2024-01-22 | Hamza Güreler | Basaksehir U19 | Basaksehir | — |
| 2023-10-19 | Halit Emre Acun | Karsiyaka Yth | Basaksehir U19 | Free |
| 2023-09-04 | Yusuf Yılmaz | Basaksehir U19 | Basaksehir | — |
| 2023-07-01 | Yusuf Yılmaz | Basaksehir Yth | Basaksehir U19 | — |
| 2023-07-01 | Yağız Dilek | Basaksehir U19 | Basaksehir | — |
| 2023-07-01 | Eren Karaağaç | Basaksehir U19 | Basaksehir | — |
| 2023-07-01 | Efecan Barlık | Basaksehir U19 | Basaksehir | — |
| 2023-07-01 | Burak Sefa Kavraz | Basaksehir U19 | Basaksehir | — |
| 2023-01-25 | Efecan Barlık | Basaksehir U19 | Usak Spor | Loan |
| 2022-08-11 | Efecan Barlık | Basaksehir U19 | Ergene Velimese | Loan |
| 2022-07-01 | Sekou Bangoura | Basaksehir U19 | Basaksehir | — |
| 2022-07-01 | Eren Karaağaç | FC Lorient U19 | Basaksehir U19 | — |
| 2022-07-01 | Burak Sefa Kavraz | Basaksehir Yth | Basaksehir U19 | — |
| 2022-07-01 | Bedirhan Özyurt | Basaksehir U19 | Basaksehir | — |
| 2022-07-01 | Batuhan Çelik | Basaksehir U19 | Basaksehir | — |
| 2022-04-13 | Efe Arda Koyuncu | Basaksehir U19 | Basaksehir | — |
| 2022-02-14 | Yağız Dilek | Basaksehir Yth | Basaksehir U19 | — |
| 2022-02-14 | Hamza Güreler | Basaksehir Yth | Basaksehir U19 | — |
| 2022-01-28 | Sekou Bangoura | Basaksehir U19 | Jammerbugt FC | Loan |