Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 10/2026 |  | Noham Rouiller | FW | |||
| 09/2026 | | Patrick Neves | AS-CO | |||
| 07/2026 | | Valon Ibrahimi | ||||
| 07/2026 | | Eliott Favre | GK |  | Team Riviera-Chablais U15 | U15 |
| 07/2026 | | Ethan Zufferey | GK |  | Team Valais/Wallis-Sion U15 | U15 |
| 07/2026 | | Dorian Garrido Ninoiu | DF |  | FC Sion-Valais/Wallis U15 | U15 |
| 07/2026 | | Noa Puthiot | DF | | FC Sion-Valais/Wallis U15 | U15 |
| 07/2026 | | Maxime Vultagio | MF | | FC Sion-Valais/Wallis U15 | U15 |
| 07/2026 | | Aaron Biderbost | FW | | FC Sion-Valais/Wallis U15 | U15 |
| 07/2026 | | Noris Biolley | FW | | Team Valais/Wallis-Sion U15 | U15 |
| 07/2026 | | Matthéo Emile Djitik | FW | | Team Valais/Wallis-Sion U15 | U15 |
| 07/2026 |  | Kilian Gillioz | FW | | Team Valais/Wallis-Sion U15 | U15 |
| 07/2026 | | Anes Hasanbašić | FW | | Team Valais/Wallis-Sion U15 | U15 |
| 07/2026 | | David Zue | FW | | Team Valais/Wallis-Sion U15 | U15 |
| 07/2026 |  | David Sène | MA |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/2026 | | Danilo Giannone | GK |  | FC Sion U19 | FC Sion U19 |
| 07/2026 | | Sofian Almashaileh | DF |  | FC Sion U17 | U17 |
| 07/2026 | | Cyril Cisse | DF | | FC Sion U17 | U17 |
| 07/2026 | | Baptiste Donnet | DF | | FC Sion U17 | U17 |
| 07/2026 | | Maxence Dorsaz | DF | | FC Sion U17 | U17 |
| 07/2026 | | Enis Gashi | DF | | FC Sion U17 | U17 |
| 07/2026 | | Keyson Gonçalves | DF | | FC Sion U17 | U17 |
| 07/2026 | | Thomas Möschinger | DF | | FC Sion U17 | U17 |
| 07/2026 | | Ethan Wiese | DF | | FC Sion U17 | U17 |
| 07/2026 | | Leon Shabani | MF | | FC Sion U17 | U17 |
| 07/2026 | | Luca Tarantino | MF | | FC Sion U17 | U17 |
| 07/2026 | | Alexandre Casu | FW | | FC Sion U17 | U17 |
| 07/2026 | | Mael Marçalo Simôes | FW | | FC Sion U17 | U17 |
| 07/2026 | | Rémi Peneveyre | FW | | FC Sion U17 | U17 |
| 07/2026 | | Eyden Tenud | FW | | FC Sion U17 | U17 |