Santutxu U19: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2020-07-01 | Adu Ares | Santutxu U19 | Santutxu | — |
| 2017-07-01 | Unai Vencedor | Santutxu U19 | Bilbao U19 | — |
| 2017-07-01 | Adu Ares | SD Indautxu | Santutxu U19 | Free |
| 2016-07-01 | Dani Vivian | Santutxu U19 | CD Basconia | — |