Besiktas U19: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2025-09-12 | Baran Can | Besiktas U19 | 24 Erzincanspor | Free |
| 2025-09-11 | Devrim Şahin | Besiktas U19 | Besiktas | — |
| 2025-08-19 | Poyraz Gelen | Besiktas U19 | Kirklarelispor | Loan |
| 2025-07-05 | Adnan Karahisar | Besiktas U19 | Adana 01 FK | Loan |
| 2024-09-06 | Berhan Kutlay Şatlı | Besiktas U19 | Eyüpspor U19 | Free |
| 2024-07-01 | Devrim Şahin | Besiktas U17 | Besiktas U19 | — |
| 2024-07-01 | Arda Berk Özüarap | Besiktas U19 | Besiktas | — |
| 2024-05-09 | Azad Demir | Besiktas U19 | Besiktas | — |
| 2024-05-09 | Abdülmecid Dönmez | Besiktas U19 | Besiktas | — |
| 2024-04-17 | Fahri Ay | Besiktas U19 | Besiktas | — |
| 2024-04-17 | Emir Yaşar | Besiktas U19 | Besiktas | — |
| 2024-04-17 | Arda Kılıç | Besiktas U19 | Besiktas | — |
| 2024-01-11 | Soner Salih Yavuz | Besiktas U19 | Eyüpspor U19 | Free |
| 2024-01-09 | Sercan Kaya | Besiktas U19 | Eyüpspor U19 | Free |
| 2023-11-27 | Mustafa Hekimoğlu | Besiktas U19 | Besiktas | — |
| 2023-11-24 | Emrecan Terzi | Besiktas U19 | Besiktas | — |
| 2023-11-06 | Aytuğ Kömeç | Besiktas U19 | Besiktas | — |
| 2023-07-01 | Soner Salih Yavuz | Besiktas U17 | Besiktas U19 | — |
| 2023-07-01 | Poyraz Gelen | Besiktas U17 | Besiktas U19 | — |
| 2023-07-01 | Mustafa Hekimoğlu | Besiktas U16 | Besiktas U19 | — |