Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/2027 |  | Nick Markanich | FW |  | Houston Dynamo | H. Dynamo |
| 10/2026 |  | Juan Portela | MF |  | CD Castellón B | CD Castellón B |
| 10/2026 | | Nadal | MF | | CD Castellón B | CD Castellón B |
| 10/2026 | | Jaime Pérez | FW | | CD Castellón B | CD Castellón B |
| 10/2026 | | Axel Perez | MF | | CD Castellón B | CD Castellón B |
| 09/2026 |  | Matías Orozco | MF |  | Brighton & Hove Albion | Brighton & Hove |
| 08/2026 |  | Federico Ceccherini | DF |  | US Cremonese | Cremonese |
| 07/2026 |  | Ilias Kostis | DF |  | Atlético Madrid | Atlético |
| 07/2026 |  | David Nzanza | FW |  | Leça FC | Leça FC |
| 07/2026 | | Antonio Gala | MF |  | Campobasso | Campobasso |
| 07/2026 |  | Jack Stern | GK-CO | |||
| 07/2026 |  | Rodrigo Rêgo | FW | | Brighton & Hove Albion | Brighton & Hove |
| 07/2026 |  | Amir Saipi | GK |  | FC Lugano | FC Lugano |
| 07/2026 |  | Jari Vlak | MF |  | ADO Den Haag | ADO Den Haag |
| 07/2026 |  | Hamza Bellari | FW |  | Valencia CF B | Valencia B |
| 07/2026 | | Córdoba | FW |  | Burgos CF | Burgos CF |
| 07/2026 | | Fran Castillo | MF |  | UD Ibiza | UD Ibiza |
| 07/2026 | | José Andrés | DF | | UD Ibiza | UD Ibiza |
| 07/2026 | | Juanjo Nieto | DF |  | NK Celje | NK Celje |
| 07/2026 | | Álvaro Martín | FW |  | FC Andorra | FC Andorra |
| 07/2026 | | Óscar | FW | | CD Castellón B | CD Castellón B |
| 07/2026 | | Serpeta | FW |  | Unionistas CF | Unionistas |
| 07/2026 |  | Mamadou Traoré | FW |  | CD Teruel | CD Teruel |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 09/2026 |  | Marc Doué | MF |  | Cádiz CF | Cádiz |
| 08/2026 | | José Andrés | DF |  | Zamora CF | Zamora |
| 08/2026 |  | Awer Mabil | FW |  | Melbourne City FC | Melbourne City |
| 07/2026 | | Salva Ruiz | DF |  | SD Huesca | Huesca |
| 07/2026 | | Mamadou Traoré | FW |  | Minija Kretinga | Minija Kretinga |
| 07/2026 | | Serpeta | FW |  | Águilas FC | Águilas FC |
| 07/2026 | | Rody Hoegee | IN-C |  | Feyenoord | Feyenoord |
| 07/2026 | | Álex Calatrava | FW |  | RCD Espanyol | RCD Espanyol |
| 07/2026 | | David Sellés | DF |  | FK Ústí nad Labem | Ústí nad Labem |
| 07/2026 |  | Michal Willmann | DF | | CD Castellón B | CD Castellón B |
| 07/2026 | | Beñat Gerenabarrena | MF |  | Athletic Club | Athletic |
| 07/2026 |  | Brian Cipenga | FW |  | UD Almería | Almería |
| 07/2026 | | Tommaso De Nipoti | FW |  | Atalanta | Atalanta |
| 07/2026 | | Fran | FW |  | Real Madrid U19 | Real Madrid U19 |
| 07/2026 | | Dennis Reus | AS-CO |  | SC Cambuur | SC Cambuur |