Galatasaray U21: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2019-07-01 | Celil Yüksel | Galatasaray U21 | Galatasaray U19 | — |
| 2019-07-01 | Batuhan Şen | Galatasaray U21 | Galatasaray | — |
| 2019-07-01 | Ahmet Sivri | Galatasaray U21 | Galatasaray U19 | — |
| 2018-10-08 | Batuhan Şen | Galatasaray U21 | Galatasaray | Loan |
| 2018-08-31 | Soner Gönül | Galatasaray U21 | BAK FK | Free |
| 2018-07-01 | Ozan Kabak | Galatasaray U21 | Galatasaray | — |
| 2018-07-01 | Celil Yüksel | Galatasaray U21 | Galatasaray | Loan |
| 2017-08-10 | Ahmet Sivri | Yenicami AK | Galatasaray U21 | Free |
| 2017-08-01 | Burak Yılmaz | Galatasaray U21 | Sancaktepe Bld | Free |
| 2017-07-20 | Soner Gönül | Galatasaray U21 | Erbaaspor | Loan |
| 2017-07-01 | Ozan Kabak | Galatasaray U17 | Galatasaray U21 | — |
| 2016-07-01 | Batuhan Şen | Galatasaray U17 | Galatasaray U21 | — |
| 2015-08-31 | Burak Yılmaz | Galatasaray U21 | Kartalspor | Loan |
| 2015-08-06 | Birkan Tetik | Galatasaray U21 | Karagümrük | Free |
| 2015-07-01 | Soner Gönül | Galatasaray U19 | Galatasaray U21 | — |
| 2015-07-01 | Celil Yüksel | Galatasaray U17 | Galatasaray U21 | — |
| 2014-07-01 | Burak Yılmaz | Galatasaray U19 | Galatasaray U21 | — |
| 2014-07-01 | Birkan Tetik | Galatasaray U19 | Galatasaray U21 | — |
| 2013-08-26 | Sadık Çiftpınar | Galatasaray U21 | T. Akcaabat FK | Free |
| 2012-08-28 | Sinan Osmanoğlu | Galatasaray U21 | Altinordu | — |