| 2026-10-07 | D. Ulrich | FC Winterthur → SC Kriens | Free agent |
| 2026-09-29 | B. Stillhart | FC Winterthur → FC WIL 1900 | Free agent |
| 2026-09-28 | F. Momoh | FC Winterthur → Podbrezová | Free agent |
| 2026-09-23 | L. Mühl | FC Winterthur → SSV Jahn Regensburg | Free agent |
| 2026-09-17 | L. Maksutaj | FC Winterthur → SC Kriens | Loan |
| 2026-09-15 | A. Durrer | FC Winterthur → Rapperswil | Free agent |
| 2026-08-17 | S. Sidler | FC Winterthur → Lecco | Free agent |
| 2026-07-29 | A. Turkes | FK Sarajevo → FC Winterthur | Free agent |
| 2026-07-12 | R. Schneider | FC Winterthur → FC Andorra | Free agent |
| 2026-07-08 | S. Ottiger | FC Luzern → FC Winterthur | Transfer |
| 2026-07-07 | A. Krasniqi | FC Winterthur → SC Kriens | Free agent |
| 2026-06-30 | C. Chiappetta | FC Winterthur → FC Schaffhausen | Free agent |
| 2026-06-30 | L. Lüthi | FC Winterthur → FC Luzern | Transfer |
| 2026-06-30 | M. Kuster | Enosis → FC Winterthur | Free agent |
| 2026-06-30 | S. Kapino | FC Winterthur → AEL | Free agent |
| 2026-06-30 | Giuliano Foro | FC Winterthur → FC Winterthur | Raise |
| 2026-06-30 | Patrik Gjidoda | Baden → FC Winterthur | Free agent |
| 2026-06-30 | A. Marchesano | Yverdon Sport → FC Winterthur | Free agent |
| 2026-06-30 | E. Kehrer | Willem II → FC Winterthur | Transfer |
| 2026-06-29 | A. Krasniqi | Wacker Innsbruck → FC Winterthur | Return from loan |
| 2026-06-29 | A. Durrer | FC Winterthur → Durrer Adrian | Free agent |
| 2026-06-29 | A. Durrer | FC Winterthur → Rapperswil | Free agent |
| 2026-06-29 | C. Chiappetta | FC Winterthur → Chiappetta Carmine | Free agent |
| 2026-06-29 | D. Ulrich | FC Winterthur → Ulrich Dario | Free agent |
| 2026-06-29 | R. Schneider | FC Winterthur → Schneider Randy | Free agent |
| 2026-06-29 | B. Stillhart | FC Winterthur → Stillhart Basil | Free agent |
| 2026-06-29 | L. Mühl | FC Winterthur → Muhl Lukas | Free agent |
| 2026-06-29 | S. Sidler | FC Winterthur → Sidler Silvan | Free agent |
| 2026-06-29 | S. Sidler | FC Winterthur → Lecco | Free agent |
| 2026-06-29 | S. Kapino | FC Winterthur → Kapino Stefanos | Free agent |
| 2026-06-29 | A. Turkes | FK Sarajevo → FC Winterthur | Free agent |
| 2026-06-29 | A. Hunziker | FC Winterthur → FC Basel 1893 | Return from loan |
| 2026-06-29 | M. Kryeziu | FC Winterthur → Kryeziu Mirlind | Free agent |
| 2026-06-29 | P. Kasami | FC Winterthur → Kasami Pajtim | Free agent |
| 2026-06-29 | B. Dansoko | FC Winterthur → Dansoko Bafode | Free agent |
| 2026-06-29 | B. Dansoko | FC Winterthur → Safa Baku | Free agent |
| 2026-06-29 | L. Maksutaj | FC Winterthur → Maksutaj Leandro | Free agent |
| 2026-06-29 | B. Beyer | FC Vaduz → FC Winterthur | Return from loan |
| 2026-06-29 | Rhodri Smith | FC Winterthur → BSC Young Boys | Return from loan |
| 2026-06-29 | H. Fehr | FC Winterthur → Fehr Henrik | Free agent |
| 2026-06-29 | T. Diethelm | FC Winterthur → Diethelm Thierry | Free agent |
| 2026-06-29 | Muqtar Ahmed | FC Winterthur → Ahmed Muqtar | Free agent |
| 2026-06-29 | E. Meili | FC Winterthur → Meili Ezequiel | Free agent |
| 2026-06-29 | Julius Holder | FC Winterthur → Holder Julius | Free agent |
| 2026-02-23 | M. Martins | FC Winterthur → FK Liepaja | Free agent |
| 2026-02-16 | E. Essiam | FC Basel 1893 → FC Winterthur | Loan |
| 2026-02-02 | Rhodri Smith | BSC Young Boys → FC Winterthur | Loan |
| 2026-02-01 | M. Kryeziu | FC Zurich → FC Winterthur | Free agent |
| 2026-01-28 | B. Beyer | FC Winterthur → FC Vaduz | Loan |
30N. BrogliPortero · 17
1M. KusterPortero · 31
75A. SpagnoliPortero · 20
16R. ArnoldDefensa · 28
4S. CamaraDefensa · 18
33Tibault CitherletDefensa · 20
18S. DiabyDefensa · 26
40Tobias OkaforDefensa · 19
21S. OttigerDefensa · 22
26L. SahitajDefensa · 21
44S. CueniCentrocampista · 24
6E. EssiamCentrocampista · 22
70Giuliano ForoCentrocampista · 18
8T. GolliardCentrocampista · 23
45A. JankewitzCentrocampista · 24
37E. MaluvunuCentrocampista · 21
20A. MarchesanoCentrocampista · 34
19Y. OdinCentrocampista · 17
27F. RohnerCentrocampista · 27
7L. ZuffiCentrocampista · 35
68B. BeyerDelantero · 29
9R. BuessDelantero · 33
99N. BurkartDelantero · 25
81N. CavkaDelantero · 16
11E. KehrerDelantero · 23
22A. TurkesDelantero · 29