| P | # | Player | Born | Height | Weight | Contract | |
|---|---|---|---|---|---|---|---|
| M | Lucas Andersen | 1994-09-13 | 177 | 72 | 2020-06-30 | ||
| M | Nabil Bahoui | 1991-02-05 | 188 | 85 | 2018-06-30 | ||
| M | Patrick Olsen | 1994-04-23 | 178 | - | 2017-06-30 | ||
| M | Rúnar Már Sigurjónsson | 1989-11-30 | 176 | 75 | 2019-06-30 |
| Date | Player | From | To | Status | Src |
|---|---|---|---|---|---|
| 30.Jun | Nabil Bahoui (M) | AIK | Grasshopper-Club Zürich | Confirmed | |
| 30.Jun | Emil Bergström (D) | Grasshopper-Club Zürich | Rubin Kazan | Confirmed | |
| 20.Feb | Nabil Bahoui (M) | Grasshopper-Club Zürich | AIK | Confirmed | |
| 20.Feb | Nabil Bahoui (M) | Hamburger SV | Grasshopper-Club Zürich | Confirmed | |
| 17.Feb | Semir Music (M) | Grasshopper-Club Zürich | Syrianska FC | Confirmed | |
| 10.Feb | Kim Källström (M) | Grasshopper-Club Zürich | Djurgårdens IF | Confirmed | |
| 31.Jan | Kim Källström (M) | Grasshopper-Club Zürich | Free Agent | Confirmed | |
| 27.Jan | Emil Bergström (D) | Rubin Kazan | Grasshopper-Club Zürich | Confirmed | |
| 27.Jan | Patrick Olsen (M) | RC Lens | Grasshopper-Club Zürich | Confirmed | |
| 31.Aug | Philippe Senderos (D) | Grasshopper-Club Zürich | Glasgow Rangers | Confirmed |