Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/2005 |  | Mandaluniz | GK | |||
| 07/2005 | | Aguiar | DF | |||
| 07/2005 | | Jon Carracedo | DF | |||
| 07/2005 | | Beñat | MF |  | Athletic Club U19 | Bilbao U19 |
| 07/2005 | | Eneko Rubio | MF | |||
| 07/2005 | | Markel Susaeta | FW | | Athletic Club U19 | Bilbao U19 |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/2005 | | Arbilla | DF |  | Athletic Club B | Bilbao B |
| 07/2005 | | Gago | DF | | Athletic Club B | Bilbao B |
| 07/2005 | | Tyson | MF | | Athletic Club B | Bilbao B |
| 07/2005 | | Ion Vélez | FW | | Athletic Club B | Bilbao B |