Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 05/2015 |  | Ibón Gómez | MF | |||
| 05/2015 | | Markel Susaeta | MF | |||
| 02/2015 | | Urtzi | GK | |||
| 01/2015 | | Borja Iturraspe | GK | |||
| 01/2015 | | Félix Gallastegi | MA | |||
| 11/2014 | | Gonzalo Barrio | GK | |||
| 08/2014 | | Amelibia | DF |  | Athletic Club B | Bilbao B |
| 07/2014 | | Jon Ander | GK | | Athletic Club B | Bilbao B |
| 07/2014 | | Oier San Miguel | GK |  | SD Gernika | Gernika |
| 07/2014 | | Alberto | DF |  | Barakaldo CF | Barakaldo CF |
| 07/2014 | | Ariño | DF | | Barakaldo CF | Barakaldo CF |
| 07/2014 | | Iker Sánchez | DF | |||
| 07/2014 | | Xabi Etxebarria | DF | |||
| 07/2014 | | Aitor Ortega | MF | |||
| 07/2014 | | Alaín Barrón | MF |  | UD Logroñés | UD Logroñés |
| 07/2014 |  | Gning | MF |  | CD Sariñena | CD Sariñena |
| 07/2014 | | Ukerdi Corres | MF | |||
| 07/2014 | | Undabarrena | MF |  | JD Somorrostro | JD Somorrostro |
| 07/2014 | | Arriaga | FW | | Barakaldo CF | Barakaldo CF |
| 07/2014 | | Goiria | FW |  | CD Mirandés | Mirandés |
| 07/2014 | | Muniozguren | FW |  | CD Laudio | CD Laudio |
| 07/2014 | | Orbegozo | FW | | Barakaldo CF | Barakaldo CF |
| 07/2014 | | Josué Atela | MA |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 08/2014 | | Jagoba Portillo | DF |  | SD Zamudio | SD Zamudio |
| 07/2014 | | Goikoetxea | DF |  | SD Leioa | Leioa |
| 07/2014 | | Iturrioz | GK | | SD Leioa | Leioa |
| 07/2014 | | Jon Altamira | GK | | SD Gernika | Gernika |
| 07/2014 | | Jon Villanueva | GK |  | Córdoba CF B | Córdoba CF B |
| 07/2014 | | Asier Iriondo | DF |  | Zalla UC | Zalla UC |
| 07/2014 | | Íñigo | DF | | Barakaldo CF | Barakaldo CF |
| 07/2014 | | Jon Aranda | DF | | SD Zamudio | SD Zamudio |
| 07/2014 | | Larreategi | DF | | Barakaldo CF | Barakaldo CF |
| 07/2014 | | Arman | MF | | SD Zamudio | SD Zamudio |
| 07/2014 | | Javi Casares | MF |  | Hércules CF | Hércules |
| 07/2014 | | Miki Massana | MF |  | AEK Larnaca | AEK Larnaca |
| 07/2014 | | Salinas | MF |  | Athletic Club | Athletic |
| 07/2014 | | Josu Santamaría | FW |  | Club Bermeo | Club Bermeo |
| 07/2014 | | Mikel Zarrabeitia | FW | | SD Gernika | Gernika |
| 07/2014 | | Orbegozo | FW | | Athletic Club B | Bilbao B |
| 07/2014 | | Txema Pan | FW | | CD Mirandés | Mirandés |