Portugalete (Copa Del Rey): every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-01 | Jorge García Salmón | Sestao River | Portugalete | Free |
| 2025-07-01 | Player | Portugalete | SD Amorebieta | Free |
| 2024-11-11 | Player | TBC | Portugalete | Free |
| 2024-07-15 | Iñigo Martin | Portugalete | FC Samtredia | Free |
| 2023-10-01 | Iñigo Martin | TBC | Portugalete | Free |
| 2023-08-19 | Asier Etxabaru | Portugalete | Zamora | Free |
| 2023-07-04 | Player | Portugalete | Arenas de Getxo | Free |
| 2023-07-01 | Player | Arenas de Getxo | Portugalete | Free |
| 2023-07-01 | Player | Sestao River | Portugalete | Free |
| 2023-01-25 | Asier Etxabaru | Talavera CF | Portugalete | Free |
| 2023-01-01 | Player | Portugalete | Free | |
| 2023-01-01 | Player | SD Amorebieta | Portugalete | Free |
| 2022-07-01 | Eñaut Mendia | Eibar II | Portugalete | Free |
| 2022-07-01 | Player | Portugalete | Gimnástica Torrelavega | Free |
| 2022-07-01 | Player | SD Amorebieta | Portugalete | Free |
| 2021-08-01 | David Valero | Portugalete | Marbella | Free |
| 2021-07-15 | Javier Murua | Portugalete | Salamanca CF UDS | Free |
| 2021-07-09 | Player | Portugalete | Móstoles | Free |
| 2021-07-01 | Thaylor | Portugalete | Hibernians | Free |
| 2021-07-01 | Player | Barakaldo | Portugalete | Free |