Unión II: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-01-01 | Santiago Grella | Unión II | Unión Santa Fe | — |
| 2026-01-01 | Misael Aguirre | Unión II | Unión Santa Fe | — |
| 2025-07-08 | Tomás Lavezzi | Unión II | Barracas C. | Free |
| 2025-01-01 | Tomás Lavezzi | CA Unión U20 | Unión II | — |
| 2025-01-01 | Misael Aguirre | CA Unión U20 | Unión II | — |
| 2025-01-01 | Emilio Giaccone | Unión II | Unión Santa Fe | — |
| 2024-07-01 | Lautaro Vargas | Unión II | Unión Santa Fe | — |
| 2024-05-02 | Lautaro Vargas | Defensa U19 | Unión II | Free |
| 2024-01-01 | Rafael Profini | Unión II | Unión Santa Fe | — |
| 2024-01-01 | Lionel Verde | Unión II | Unión Santa Fe | — |
| 2023-07-01 | Mateo Del Blanco | Unión II | Unión Santa Fe | — |
| 2023-07-01 | Lucas Meuli | Unión II | Unión Santa Fe | — |
| 2023-07-01 | Joaquín Mosqueira | Unión II | Unión Santa Fe | — |
| 2023-01-01 | Santiago Grella | CA Unión U20 | Unión II | — |
| 2023-01-01 | Mateo Del Blanco | CA Unión U20 | Unión II | — |
| 2023-01-01 | Lionel Verde | CA Unión U20 | Unión II | — |
| 2023-01-01 | Juan Pablo Ludueña | Unión II | Unión Santa Fe | — |
| 2023-01-01 | Emilio Giaccone | CA Unión U20 | Unión II | — |
| 2022-08-23 | Nicolás Andereggen | CA Unión II | OF Ierapetras | — |
| 2022-07-01 | Juan Pablo Ludueña | CA Unión U20 | Unión II | — |