Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 03/2022 |  | Unai Zubiaur | AS-CO | |||
| 01/2022 | | Javi Ros | MF |  | Real Zaragoza | Zaragoza |
| 01/2022 | | Andoni López | DF |  | UD Logroñés | UD Logroñés |
| 01/2022 | | Nolaskoain | DF |  | Athletic Club | Athletic |
| 01/2022 | | Sergio Moreno | FW |  | Rayo Vallecano | Rayo |
| 08/2021 | | Larra | FW | | Real Zaragoza | Zaragoza |
| 07/2021 | | Álvaro Peña | MF |  | Albacete | Albacete |
| 07/2021 | | Guruzeta | FW |  | CE Sabadell | Sabadell |
| 07/2021 | | Markel Lozano | DF |  | RC Celta B | RC Celta B |
| 07/2021 | | Oier Luengo | DF |  | Athletic Club B | Bilbao B |
| 07/2021 | | Óscar Gil | DF | |||
| 07/2021 | | Ozkoidi | DF | | CE Sabadell | Sabadell |
| 07/2021 | | Mikel San José | MF |  | Birmingham City | Birmingham |
| 07/2021 | | Olaetxea | MF | | UD Logroñés | UD Logroñés |
| 07/2021 | | Amorrortu | FW |  | CD Calahorra | CD Calahorra |
| 07/2021 | | Santamaría | GK | | UD Logroñés | UD Logroñés |
| 07/2021 | | Unai Uberuaga | MF |  | Urduliz FT | Urduliz FT |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/2022 | | Arregi | DF | | UD Logroñés | UD Logroñés |
| 01/2022 | | Amorrortu | FW |  | CD Numancia | Numancia |
| 01/2022 | | Mikel Zarrabeitia | DF |  | SD Logroñés | SD Logroñés |
| 08/2021 | | Beñat Garro | DF |  | Arenas de Getxo | Arenas de Getxo |
| 08/2021 | | Unai Uberuaga | MF |  | SD Leioa | Leioa |
| 07/2021 | | Oier Garai | FW |  | Club Portugalete | Portugalete |
| 07/2021 | | Leiza | DF |  | Sestao River | Sestao River |
| 07/2021 | | Ekaitz Molina | MF |  | SD Gernika | Gernika |