| P | # | Player | Born | Height | Weight | Contract | |
|---|---|---|---|---|---|---|---|
| M | Matt Grimes | 1995-07-15 | 178 | 70 | 2019-06-30 | ||
| M | Yaser Kasim | 1991-05-16 | 2021-12-31 | ||||
| F | Chris Long | 1995-02-25 | 169 | 77 | 2018-06-30 |
| Date | Player | From | To | Status | Src |
|---|---|---|---|---|---|
| 30.Jun | Matt Grimes (M) | Northampton Town | Swansea City | Confirmed | |
| 30.Jun | Chris Long (F) | Northampton Town | Burnley FC | Confirmed | |
| 21.Jan | Kenji Gorré (F) | Northampton Town | Swansea City | Confirmed | |
| 29.Jul | Kenji Gorré (F) | Swansea City | Northampton Town | Confirmed | |
| 6.Aug | Ivan Toney (F) | Northampton Town | Newcastle United | Confirmed | |
| 10.Oct | Enda Stevens (D) | Aston Villa FC | Northampton Town | Confirmed | |
| 19.Aug | Ashley Corker (D) | Northampton Town | KuPS | Confirmed | |
| 30.Jul | Ryan Gilligan (M) | Northampton Town | Östersunds FK | Confirmed | |
| 1.Jan | Ben Harding (M) | Wycombe Wanderers FC | Northampton Town | Confirmed | |
| 22.Dec | Shane Higgs (GK) | Free Agent | Northampton Town | Confirmed |