Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/2025 |  | Yann Cissé | FW |  | Athletic Club U17 | U17 |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/2025 |  | Zugatz | GK |  | Athletic Club B | Bilbao B |
| 07/2025 | | Rubén | DF |  | Athletic Club U19 | Bilbao U19 |
| 07/2025 | | Urko | DF | | Athletic Club B | Bilbao B |
Athletic Club U18