San Marcos (Primera División): every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-01-29 | Agustín Maidana | Plaza Colonia | San Marcos | Free |
| 2026-01-19 | Cristóbal Cáceres | San Marcos | Santiago Wanderers | Free |
| 2026-01-14 | Nahuel Donadell Alvarez | Coquimbo Unido | San Marcos | Free |
| 2026-01-01 | Alvaro Gaston Cazula | San Miguel | San Marcos | Free |
| 2026-01-01 | Gonzalo Reyes | Rangers | San Marcos | Free |
| 2026-01-01 | Nicolás Temperini | San Marcos | TBC | Free |
| 2026-01-01 | G. Cubillos | San Luis | San Marcos | Free |
| 2026-01-01 | Marcos Camarda | San Marcos | Santiago Wanderers | Free |
| 2026-01-01 | Franco Ledesma | San Marcos | Deportes Iquique | Free |
| 2025-08-20 | Bastián Araya | San Marcos | Linares | Loan |
| 2025-07-09 | Ignacio Ayala | San Marcos | TBC | Free |
| 2025-03-01 | Gonzalo Medina | San Marcos | General Velásquez | Free |
| 2025-02-27 | C. Abarca | San Marcos | Deportes Rengo | Free |
| 2025-02-27 | Bastián Araya | San Marcos | Oriental | Loan |
| 2025-02-27 | Nicolás Rivera | San Marcos | Provincial Ovalle | Loan |
| 2025-02-14 | Daniel Vicencio | San Marcos | Provincial Osorno | Free |
| 2025-01-31 | Diego Plaza | Coquimbo Unido | San Marcos | Loan |
| 2025-01-30 | Mauricio Arias | San Marcos | Puerto Montt | Free |
| 2025-01-25 | Cristián Valenzuela | General Velásquez | San Marcos | Free |
| 2025-01-18 | Fabián Píriz | San Marcos | Colón | Free |