FC Sion (Super League): every transfer in and out, fees paid and earned, squad market value, €27m spent and €54m earned. Tracked squad: ACTUAL Value €31m, in line with the market. Valued as of 2026-08-26.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-08-11 | Riccardo Braschi | ACF Fiorentina | FC Sion | Free |
| 2026-07-28 | Lorenzo Villa | Juventus FC | FC Sion | Free |
| 2026-07-01 | Winsley Boteli | M'gladbach II | FC Sion | €3.5m |
| 2026-07-01 | Fodé Sylla | RC Lens | FC Sion | Free |
| 2026-07-01 | Dejan Djokic | FC Sion | FC Vaduz | Free |
| 2026-07-01 | Maxime Dubosson | FC Sion | Etoile Carouge | Loan |
| 2026-02-12 | Théo Bouchlarhem | FC Sion | Etoile Carouge | Free |
| 2026-02-11 | Ryan Kessler | FC Aarau | FC Sion | — |
| 2026-02-02 | Dinis Rodrigues | FC Sion | FC Penafiel | Loan |
| 2026-01-23 | Belmar Joseph | FC Sion | Monterey Bay | Loan |
| 2026-01-16 | Franck Surdez | KAA Gent | FC Sion | €1.3m |
| 2026-01-15 | Simon Caillet | FC Basel U21 | FC Sion | — |
| 2025-09-08 | Kevin Bua | FC Sion | Etoile Carouge | Free |
| 2025-09-03 | Timothy Fayulu | FC Sion | Noah | Loan |
| 2025-09-03 | Nathanaël Saintini | FC Sion | Noah | Free |
| 2025-08-29 | Donat Rrudhani | Young Boys | FC Sion | €800k |
| 2025-08-27 | Federico Barba | FC Sion | PERSIB | Free |
| 2025-08-27 | Federico Barba | FC Sion | Persib | Free |
| 2025-08-22 | Anton Miranchuk | FC Sion | Dynamo Moscow | €2.5m |
| 2025-08-13 | Burak Alili | FC Sion | Stade Nyonnais | Loan |