Winterthur U18: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2023-07-01 | Tibault Citherlet | Winterthur U18 | Winterthur U21 | — |
| 2022-08-20 | Yannick Bettkober | Winterthur U18 | SC YF Juventus | Free |
| 2022-08-10 | Alessandro Romano | Winterthur U18 | Roma U17 | — |
| 2021-07-14 | Yannick Bettkober | FC Zürich U16 | Winterthur U18 | Free |
| 2021-07-01 | Tibault Citherlet | Winterthur U16 | Winterthur U18 | — |
| 2021-07-01 | Loïc Lüthi | Winterthur U18 | Winterthur U21 | — |
| 2021-07-01 | Alessandro Romano | Winterthur U16 | Winterthur U18 | — |
| 2019-07-01 | Loïc Lüthi | Winterthur U16 | Winterthur U18 | — |
| 2017-07-01 | Gabriel Isik | Winterthur U18 | Winterthur U21 | — |
| 2016-01-01 | Gabriel Isik | SV Wehen Yth. | Winterthur U18 | — |
| 2013-07-01 | Manuel Akanji | Winterthur U18 | Winterthur U21 | — |