Atlético Yth.: every transfer in and out, fees paid and earned, squad market value, €100k spent and €465k earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2021-07-01 | Rayane Belaid | Atlético Yth. | Atl. Madrid U17 | — |
| 2021-07-01 | Javier Boñar | Atléti Youth | Atl. Madrid U17 | — |
| 2021-07-01 | Hugo Solozábal | Atlético Yth. | Atl.Madleño U18 | — |
| 2020-10-02 | Alejandro Garnacho | Atlético Yth. | Man Utd U18 | €465k |
| 2020-07-01 | Sergio Mestre | Atléti Youth | Atl. Madrid U17 | — |
| 2020-07-01 | Salim El Jebari | Atléti Youth | Atl.Madleño U18 | — |
| 2020-07-01 | Ilias Kostis | Atlético Yth. | Atl. Madrid U19 | — |
| 2020-07-01 | Carlos Ballestero | Atléti Youth | Atl.Madleño U18 | — |
| 2020-07-01 | Aitor Gismera | Atlético Yth. | Atl.Madleño U18 | — |
| 2019-07-01 | Javi Serrano | Atlético Yth. | Atl.Madleño U18 | — |
| 2019-07-01 | Ilias Kostis | APOEL U19 | Atlético Yth. | €100k |
| 2019-07-01 | Germán Valera | Atlético Yth. | Atl. Madrid U19 | — |
| 2019-07-01 | Alejandro Iturbe | Atlético Yth. | Atl.Madleño U18 | — |
| 2018-07-01 | Thiago Pitarch | Atlético Yth. | Getafe CF Youth | — |
| 2018-07-01 | Salim El Jebari | Rayo Vallecano | Atléti Youth | — |
| 2018-07-01 | Germán Valera | Villarreal Yth. | Atlético Yth. | Free |
| 2017-07-01 | Santi Rublico | Atlético Yth. | Rayo Youth | — |
| 2017-07-01 | Pablo Barrios | R.Madrid Yth. | Atlético Yth. | — |
| 2017-07-01 | Marco Moreno | Atlético Yth. | Atl. Madrid U17 | — |
| 2016-07-01 | Óscar Rivas | Atlético Yth. | Atl. Madrid U17 | — |