Standard U19: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2018-01-01 | William Balikwisha | Standard U19 | Standard U21 | — |
| 2016-07-01 | William Balikwisha | Standard U17 | Standard U19 | — |
| 2016-07-01 | Jérôme Déom | Standard U19 | Standard U21 | — |
| 2016-07-01 | Arnaud Bodart | Standard U19 | Standard U21 | — |
| 2015-07-01 | Sofian Kiyine | Standard U19 | Chievo U19 | — |
| 2015-07-01 | Maximiliano Caufriez | Standard U19 | Waasland-Beveren | Free |
| 2015-07-01 | Landry Dimata | Standard U19 | Standard U21 | — |
| 2015-07-01 | Hugo Cuypers | Standard U19 | Standard U21 | — |
| 2015-07-01 | Dimitri Lavalée | Standard U19 | Standard U21 | — |
| 2014-07-01 | Sofian Kiyine | Standard U17 | Standard U19 | — |
| 2014-07-01 | Maximiliano Caufriez | Anderlecht Yth. | Standard U19 | Free |
| 2014-07-01 | Landry Dimata | RAEC Mons Youth | Standard U19 | — |
| 2014-07-01 | Hugo Cuypers | CS Visé U19 | Standard U19 | Free |
| 2014-07-01 | Dimitri Lavalée | Standard U17 | Standard U19 | — |
| 2014-07-01 | Arnaud Bodart | Standard U17 | Standard U19 | — |
| 2014-07-01 | Ali Yaşar | Standard U19 | Standard Liège | — |
| 2014-07-01 | Alexis De Sart | Standard U19 | Standard U21 | — |
| 2013-07-01 | Mërgim Vojvoda | Standard U19 | Standard U21 | — |
| 2013-07-01 | Julien De Sart | Standard U19 | Standard Liège | — |
| 2012-08-31 | Luiz Phellype | Desp. Brasil | Standard U19 | Loan |