Club Social y Deportivo Defensa y Justicia (Torneo Apertura): every transfer in and out, fees paid and earned, squad market value, €15m spent and €51m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-06-30 | Abiel Osorio | Defensa | Elche CF | Free |
| 2026-03-13 | Luciano González | Peñarol | Defensa | Loan |
| 2026-03-11 | Santiago Toloza | Platense | Defensa | Free |
| 2026-02-20 | Nicolás Stefanelli | Club Social y Deportivo Defensa y Justicia | La Serena | Free |
| 2026-02-03 | Ezequiel Cannavo | Defensa | Racing Club | Loan |
| 2026-01-27 | Facundo Altamira | Godoy Cruz | Defensa | Loan |
| 2026-01-25 | Benjamín Schamine | Club Social y Deportivo Defensa y Justicia | O'Higgins | Loan |
| 2026-01-22 | Rodrigo Herrera | Defensa | Newell's | €1.3m |
| 2026-01-21 | Rodrigo Bogarín | Defensa | Barracas C. | Free |
| 2026-01-19 | Emiliano Amor | Colo-Colo | Defensa | Free |
| 2026-01-19 | Alexis Soto | Defensa | Rosario Central | Loan |
| 2026-01-15 | Pedro Ramírez | Defensa | Dep. Riestra | €430k |
| 2026-01-14 | Éver Banega | Newell's | Defensa | Free |
| 2026-01-14 | Tomás Ortiz | Defensa | Gimnasia (M) | Loan |
| 2026-01-14 | Rubén Botta | CA Talleres | Defensa | Free |
| 2026-01-14 | Nazareno Roselli | Arsenal Sarandí | Defensa | — |
| 2026-01-14 | Manuel Duarte | Defensa | Barracas C. | Free |
| 2026-01-14 | Luciano Herrera | Defensa | Newell's | €855k |
| 2026-01-14 | Lucas González | Defensa | Central Córdoba | Loan |
| 2026-01-14 | Elías Pereyra | Godoy Cruz | Defensa | Free |