Colo-Colo U21: every transfer in and out, fees paid and earned, squad market value, €440k spent.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2023-06-20 | Ervin Vaca | Colo-Colo U21 | Bolívar | Free |
| 2023-01-01 | Jordhy Thompson | Colo-Colo U21 | Colo-Colo | — |
| 2023-01-01 | Damián Pizarro | Colo-Colo U21 | Colo-Colo | — |
| 2023-01-01 | Alan Saldivia | Colo-Colo U21 | Colo-Colo | — |
| 2022-01-01 | Ervin Vaca | Calleja | Colo-Colo U21 | — |
| 2022-01-01 | Damián Pizarro | Colo-Colo U18 | Colo-Colo U21 | — |
| 2022-01-01 | Alan Saldivia | Torque U19 | Colo-Colo U21 | €440k |
| 2021-11-22 | Alan Saldivia | Torque U19 | Colo-Colo U21 | Loan |
| 2021-03-10 | Felipe Loyola | Colo-Colo U21 | CDF Vial | Free |
| 2021-03-01 | Vicente Pizarro | Colo-Colo U21 | Colo-Colo | — |
| 2020-01-21 | Felipe Loyola | Colo-Colo U21 | CDF Vial | Loan |
| 2020-01-01 | Josué Ovalle | Colo-Colo U21 | Dep. Linares | Free |
| 2019-01-01 | Williams Alarcón | Colo-Colo U21 | Colo-Colo | — |
| 2017-01-01 | Iván Morales | Colo-Colo U21 | Colo-Colo | — |
| 2015-07-01 | Gabriel Suazo | Colo-Colo U21 | Colo-Colo | — |
| 2012-01-01 | Claudio Baeza | Colo-Colo U21 | Colo-Colo | — |