CA Osasuna (Laliga): every transfer in and out, fees paid and earned, squad market value, €54m spent and €50m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-01 | Sheraldo Becker | CA Osasuna | Mainz | €500k |
| 2026-07-01 | Juan Cruz | CA Osasuna | Without Club | — |
| 2026-02-02 | Sheraldo Becker | CA Osasuna | Mainz | Loan |
| 2026-01-22 | Raúl Moro | Ajax | CA Osasuna | €5m |
| 2026-01-01 | Javi Galán | Atlético | CA Osasuna | €500k |
| 2026-01-01 | Iñigo Arguibide | Osasuna B | CA Osasuna | — |
| 2025-09-01 | Sheraldo Becker | Real Sociedad | CA Osasuna | Free |
| 2025-07-22 | Jesús Areso | CA Osasuna | Athletic Club | €12m |
| 2025-07-17 | José Manuel Arnáiz | CA Osasuna | Granada CF | Free |
| 2025-07-11 | Víctor Muñoz | RM Castilla | CA Osasuna | €5m |
| 2025-07-01 | Valentin Rosier | CD Leganés | CA Osasuna | Free |
| 2025-07-01 | Unai García | CA Osasuna | Panetolikos | Free |
| 2025-07-01 | Rubén Peña | CA Osasuna | CD Leganés | Free |
| 2025-07-01 | Pablo Ibáñez | CA Osasuna | Alavés | Free |
| 2025-07-01 | Asier Osambela | Osasuna B | CA Osasuna | — |
| 2025-01-22 | Nacho Vidal | CA Osasuna | Real Oviedo | €200k |
| 2025-01-08 | Javi Martínez | CA Osasuna | SD Eibar | Free |
| 2025-01-02 | Iker Benito | CA Osasuna | CD Mirandés | Loan |
| 2024-08-29 | Enzo Boyomo | Real Valladolid | CA Osasuna | €5m |
| 2024-08-09 | Bryan Zaragoza | Bayern Munich | CA Osasuna | Loan |