FC Sion Yth.: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2020-07-01 | Roméo Beney | FC Sion Yth. | FC Sion U16 | — |
| 2020-07-01 | Nevio Biner | FC Sion Yth. | FC Sion U15 | — |
| 2020-07-01 | Maxime Dubosson | FC Sion Yth. | FC Sion U18 | — |
| 2018-07-01 | Théo Berdayes | FC Sion Yth. | FC Sion U18 | — |
| 2017-07-01 | Mauro Rodrigues | FC Sion Yth. | FC Sion U18 | — |
| 2016-07-01 | Nicky Beloko | FC Sion Yth. | FC Sion U18 | — |
| 2015-07-19 | Nicky Beloko | Team Vaud U16 | FC Sion Yth. | — |
| 2015-07-01 | Joël Monteiro | FC Sion Yth. | FC Sion U18 | — |