Rayo U19: every transfer in and out, fees paid and earned, squad market value and €100k earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2024-07-01 | Sergio Lozano | Rayo U19 | Rayo B | — |
| 2024-07-01 | Samu Becerra | Rayo U19 | Rayo B | — |
| 2024-07-01 | Marco de las Sías | Rayo U19 | Rayo B | — |
| 2023-09-01 | Georgiy Tunguliyadi | Rayo U19 | Estr. Amadora B | Free |
| 2022-10-03 | Georgiy Tunguliyadi | Without Club | Rayo U19 | — |
| 2022-07-01 | Pablo Muñoz | Rayo U19 | Rayo B | — |
| 2022-07-01 | Marco de las Sías | Real Madrid U17 | Rayo U19 | Free |
| 2021-09-01 | Joselu Pérez | Rayo U19 | Rayo B | — |
| 2021-07-01 | Diego Méndez | Rayo U19 | Rayo B | — |
| 2020-07-01 | Sergio Gimeno | Rayo U19 | Rayo B | — |
| 2020-07-01 | Mario de Luis | Rayo U19 | Real Madrid U19 | Free |
| 2020-07-01 | Joselu Pérez | Rayo Vallecano | Rayo U19 | — |
| 2019-07-01 | Sergio Gimeno | Valencia U19 | Rayo U19 | — |
| 2019-07-01 | Pablo Muñoz | Rayo Vallecano | Rayo U19 | — |
| 2019-07-01 | Miguel Ángel Morro | Rayo U19 | Rayo B | — |
| 2019-07-01 | Mario de Luis | Rayo Vallecano | Rayo U19 | — |
| 2019-07-01 | Jorge Moreno | Rayo U19 | Rayo B | — |
| 2019-07-01 | Diego García | Rayo U19 | Rayo B | — |
| 2018-08-01 | Alonso Coello | Rayo U19 | F. Atlantic Owl | Free |
| 2018-07-01 | Ángel Algobia | Rayo U19 | Rayo B | — |