Universidad San Martín (Segunda Division): every transfer in and out, fees paid and earned, squad market value and €8.3m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-03-03 | Joazhiño Arroé | Deportivo Coopsol | Universidad San Martín | Free |
| 2026-02-16 | Otavio Gut | Alianza Universidad | Universidad San Martín | Free |
| 2026-02-07 | Mauricio Affonso | ADC Juan Pablo II | Universidad San Martín | Free |
| 2026-01-17 | Homali Ruiz | Universidad San Martín | Deportiva Agropecuaria | Free |
| 2025-08-22 | C. Ramos | Alianza Universidad | Universidad San Martín | Free |
| 2025-07-31 | Player | Universidad San Martín | Deportivo Llacuabamba | Free |
| 2025-07-30 | Edhu Oliva | Alianza Universidad | Universidad San Martín | Free |
| 2025-07-25 | Kevin Peña | Comerciantes Unidos | Universidad San Martín | Free |
| 2025-07-23 | Tarek Carranza | Universidad San Martín | Santos | Free |
| 2025-07-23 | Player | Universidad San Martín | Deportivo Llacuabamba | Free |
| 2025-07-21 | Héctor Zeta | Universidad San Martín | FC Cajamarca | Free |
| 2025-07-01 | Kevin Sánchez | Los Chankas | Universidad San Martín | Free |
| 2025-03-28 | Joazhiño Arroé | Universidad San Martín | Deportivo Coopsol | Free |
| 2025-03-26 | Player | Universidad San Martín | Deportivo Coopsol | Free |
| 2025-03-13 | Player | Universidad San Martín | Deportivo Coopsol | Free |
| 2025-03-12 | Player | Universidad San Martín | Deportivo Coopsol | Free |
| 2025-03-03 | Player | UCV Moquegua | Universidad San Martín | Free |
| 2025-03-03 | Gabriel Delgado | Universidad San Martín | Unión Comercio | Free |
| 2025-02-03 | Player | Deportivo Municipal | Universidad San Martín | Free |
| 2025-02-02 | Juan Fernando Caicedo | Llaneros FC | Universidad San Martín | Free |