Osasuna II (Primera Federación): every transfer in and out, fees paid and earned, squad market value, €80k spent and €2m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-08-13 | Player | Osasuna II | Extremadura 1924 | Free |
| 2026-07-27 | Mikel Serrano | Osasuna II | Unionistas de Salamanca | Free |
| 2026-07-24 | Anton Efremov | Osasuna II | Sestao River | Free |
| 2026-07-21 | Rufino Lucero | Osasuna II | CD Lugo | Free |
| 2026-07-09 | Player | Osasuna II | Unionistas de Salamanca | Free |
| 2026-07-08 | Dimitrios Stamatakis | Osasuna II | UD Ibiza | Loan |
| 2026-07-02 | Ander Yoldi | Osasuna II | UD Ibiza | Free |
| 2026-07-01 | Asier Arocena | Mutilvera | Osasuna II | Free |
| 2026-07-01 | Roberto Arroyo | Osasuna II | Racing Ferrol | Free |
| 2026-07-01 | Carlos Lumbreras | Osasuna II | Eibar II | Free |
| 2026-01-22 | Manu Rico | SD Huesca | Osasuna II | Loan |
| 2026-01-15 | Rufino Lucero | Zamora | Osasuna II | Free |
| 2025-09-01 | Player | Osasuna II | CD Tudelano | Free |
| 2025-09-01 | Anai Morales | Osasuna II | UD Logroñés | Loan |
| 2025-08-21 | Pablo Valencia | Osasuna II | Eldense | Free |
| 2025-08-14 | Anton Efremov | Villarreal CF | Osasuna II | €80k |
| 2025-08-07 | Jorge Moreno | Osasuna II | Cádiz CF | Free |
| 2025-07-22 | Mikel Serrano | Unionistas de Salamanca | Osasuna II | Free |
| 2025-07-18 | Diego Moreno | Osasuna II | Ponferradina | Free |
| 2025-07-18 | Toni Herrero | Osasuna II | SC Farense | Free |