Aves U19: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2019-12-01 | Hugo Oliveira | Aves U19 | Aves U23 | — |
| 2019-07-01 | Kelvin Boateng | Aves U19 | Aves U23 | — |
| 2019-07-01 | Hugo Oliveira | FC Porto U17 | Aves U19 | Free |
| 2018-11-01 | Diogo Batista | Aves U19 | Aves U23 | — |
| 2018-07-01 | Kelvin Boateng | Right to Dream | Aves U19 | Free |
| 2017-07-01 | Diogo Batista | Setúbal FC U17 | Aves U19 | — |