Ajouts
| De | Nom | Pos | Équipe | Équipe | ||
|---|---|---|---|---|---|---|
| 03/2026 |  | Thomas Möschinger | D |  | FC Sion U15 | U15 |
| 07/2025 | | Soane Fort | G |  | Team Valais/Wallis-Sion U15 | U15 |
| 07/2025 | | Danilo Giannone | G | | Team Valais/Wallis-Sion U15 | U15 |
| 07/2025 | | Nico Studer | G | | FC Sion U15 | U15 |
| 07/2025 | | Sofian Almashaileh | D | | FC Sion U15 | U15 |
| 07/2025 | | Cyril Cisse | D | | FC Sion U15 | U15 |
| 07/2025 | | Baptiste Donnet | D | | Team Valais/Wallis-Sion U15 | U15 |
| 07/2025 | | Maxence Dorsaz | D | | FC Sion U15 | U15 |
| 07/2025 | | Enis Gashi | D | | Team Valais/Wallis-Sion U15 | U15 |
| 07/2025 | | Noah Kohlbrenner | D | | FC Sion U15 | U15 |
| 07/2025 | | Ethan Wiese | D | | FC Sion U15 | U15 |
| 07/2025 | | Dorian Demaj | M | | Team Valais/Wallis-Sion U15 | U15 |
| 07/2025 | | Rafael Sanchez | M | | FC Sion U15 | U15 |
| 07/2025 | | Leon Shabani | M | | FC Sion U15 | U15 |
| 07/2025 | | Luca Tarantino | M | | FC Sion U15 | U15 |
| 07/2025 | | Lionel Von Däniken | M | | FC Sion U15 | U15 |
| 07/2025 | | Alexandre Casu | A | | Team Valais/Wallis-Sion U15 | U15 |
| 07/2025 | | Giulian Leoni | A | | FC Sion U15 | U15 |
| 07/2025 | | Rémi Peneveyre | A | | Team Valais/Wallis-Sion U15 | U15 |
| 07/2025 | | Eyden Tenud | A | | Team Valais/Wallis-Sion U15 | U15 |
Aliénations
| De | Nom | Pos | Équipe | Équipe | ||
|---|---|---|---|---|---|---|
| 02/2026 | | Nico Studer | G |  | FC Thun Berner Oberland U16 | U16 |
| 07/2025 | | Aurélien Cettou | G |  | FC Sion U17 | U17 |
| 07/2025 | | Lionel Fux | G | | FC Sion U17 | U17 |
| 07/2025 | | Ilan Rouiller | G |  | FC Martigny Sports | Martigny Sports |
| 07/2025 | | Malik Choulak | D | | FC Sion U17 | U17 |
| 07/2025 | | Lucas Cordeiro | D | | FC Sion U17 | U17 |
| 07/2025 | | Marco Dos Santos | D | | FC Sion U17 | U17 |
| 07/2025 | | Albert Kähler Rohde | D | | FC Sion U17 | U17 |
| 07/2025 | | Hadi Khedim | D | | FC Sion U17 | U17 |
| 07/2025 | | Arnaud Premand | D | | FC Sion U17 | U17 |
| 07/2025 | | Luca Farquet | M | | FC Sion U17 | U17 |
| 07/2025 | | Edison Kokollari | M | | FC Sion U17 | U17 |
| 07/2025 | | Nathan Mathey | M | | FC Sion U17 | U17 |
| 07/2025 | | Lionel Métrailler | M | | FC Sion U17 | U17 |
| 07/2025 | | Hannes Schnyder | M | | FC Sion U17 | U17 |
| 07/2025 | | Romain Vultagio | M | | FC Sion U17 | U17 |
| 07/2025 | | Halbine Waso | M | | FC Sion U17 | U17 |
| 07/2025 | | Evan Berdayes | A | | FC Sion U17 | U17 |
| 07/2025 |  | Leon Haliti | A | | FC Sion U17 | U17 |
| 07/2025 | | Sandro Jean | A | | FC Sion U17 | U17 |
| 07/2025 | | Gian Luggen | A | | FC Sion U17 | U17 |
| 07/2025 | | Adrien Tschopp | A | | FC Sion U17 | U17 |
| 07/2025 | | Christophe Moulin | E | | FC Sion U17 | U17 |