Besiktas U21: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2019-09-02 | Berke Önde | Besiktas U21 | Guimarães U23 | — |
| 2018-07-01 | Ersin Destanoğlu | Besiktas U21 | Besiktas | — |
| 2018-02-01 | Kartal Yılmaz | Besiktas U19 | Besiktas U21 | Loan |
| 2017-11-27 | Oğuzhan Akgün | Besiktas U21 | Besiktas U17 | — |
| 2017-09-08 | Eslem Öztürk | Besiktas U21 | Istanbulspor | Free |
| 2017-07-01 | Oğuzhan Akgün | Besiktas U16 | Besiktas U21 | — |
| 2017-07-01 | Fatih Aksoy | Besiktas U21 | Besiktas | — |
| 2017-07-01 | Ersin Destanoğlu | Besiktas U16 | Besiktas U21 | — |
| 2017-07-01 | Berke Önde | Besiktas U17 | Besiktas U21 | — |
| 2017-01-10 | Eslem Öztürk | Besiktas U21 | BB Erzurumspor | Loan |
| 2015-07-01 | Fatih Aksoy | Besiktas U19 | Besiktas U21 | — |
| 2015-07-01 | Eslem Öztürk | Besiktas U19 | Besiktas U21 | — |
| 2015-01-16 | Tayfun Aydoğan | Besiktas U21 | Menemen Belediye | — |
| 2014-07-01 | Tayfun Aydoğan | Besiktas U19 | Besiktas U21 | — |