Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 06/2018 |  | Jordi Sánchez | FW |  | Valencia CF B | Valencia B |
| 02/2018 |  | Ali Al-Namer | MF | |||
| 01/2018 | | Saúl García | DF |  | Deportivo A Coruña | Deportivo |
| 09/2017 | | Cristian | MF | |||
| 08/2017 | | Elgezabal | DF | |||
| 08/2017 |  | Pape Diamanka | MF | |||
| 07/2017 | | Vallejo | MF |  | Atlético Astorga | Astorga |
| 07/2017 | | Markel Etxeberria | DF |  | Athletic Club | Athletic |
| 07/2017 | | Pere Milla | FW | |||
| 07/2017 | | Pablo Larrea | MF |  | Villarreal CF | Villarreal |
| 07/2017 | | Gaizka Campos | GK |  | Barakaldo CF | Barakaldo CF |
| 07/2017 | | Grego | DF | | Valencia CF B | Valencia B |
| 07/2017 | | Javi Duro | DF |  | SD Leioa | Leioa |
| 07/2017 | | Marcos Isla | DF |  | CD Cristo Atlético | Cristo Atlético |
| 07/2017 | | Guillermo Fernández | FW |  | Elche CF | Elche CF |
| 07/2017 | | Higinio Marín | FW |  | Valladolid Promesas | Valladolid B |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 08/2017 |  | Diabaté | FW |  | CD Calahorra | CD Calahorra |
| 07/2017 | | Saizar | GK |  | Burgos CF | Burgos CF |
| 07/2017 | | Marc Pedraza | MF |  | RCD Mallorca | Mallorca |
| 07/2017 | | Javi Duro | DF | | CD Calahorra | CD Calahorra |
| 07/2017 | | Gorka Alegría | GK | | CD Calahorra | CD Calahorra |
| 07/2017 | | Casado | DF |  | Recreativo Huelva | Recreativo |
| 07/2017 | | Orfila | DF |  | Real Murcia | Murcia |
| 07/2017 | | Eneko Capilla | MF |  | Real Sociedad B | Real Sociedad B |
| 07/2017 | | Madrigal | MF |  | CD Izarra | CD Izarra |
| 07/2017 | | Jairo Morillas | FW |  | RCD Espanyol | RCD Espanyol |
| 07/2017 | | Kike Sola | FW | | Athletic Club | Athletic |
| 07/2017 | | Pablo Sanz | FW |  | SD Almazán | Almazán |
| 07/2017 | | Villalibre | FW | | Athletic Club | Athletic |