Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/2019 |  | Mo El Hankouri | FW |  | Feyenoord | Feyenoord |
| 01/2019 | | Paul Gladon | FW |  | Wolverhampton Wanderers | Wolverhampton |
| 01/2019 |  | Kō Itakura | MF |  | Manchester City | Man City |
| 01/2019 | | Sander van Gessel | AS-CO |  | FC Groningen U17 | U17 |
| 01/2019 | | Iliass Bel Hassani | MF |  | AZ Alkmaar | AZ Alkmaar |
| 01/2019 | | Thomas Bruns | MF |  | Vitesse | Vitesse |
| 01/2019 | | Kaj Sierhuis | FW |  | AFC Ajax | Ajax |
| 09/2018 | | Tapmahoe Sopacua | DF |  | FC Groningen (J) | FC Groningen (J) |
| 09/2018 | | Daniël van Kaam | MF | | FC Groningen (J) | FC Groningen (J) |
| 08/2018 |  | Jannik Pohl | FW |  | Aalborg BK | Aalborg BK |
| 08/2018 | | Pelle Boevink | GK | | FC Groningen (J) | FC Groningen (J) |
| 08/2018 |  | Tim Handwerker | DF |  | 1. FC Köln | Köln |
| 07/2018 | | Jeff Chabot | DF |  | Sparta Rotterdam | Sp. Rotterdam |
| 07/2018 |  | Ruben Jenssen | MF |  | 1. FC Kaiserslautern | K'lautern |
| 07/2018 |  | Mateo Cassierra | FW | | AFC Ajax | Ajax |
| 07/2018 |  | Ahmad Mendes Moreira | FW |  | Kozakken Boys | Kozakken Boys |
| 07/2018 | | Danny Buijs | MA | | Kozakken Boys | Kozakken Boys |
| 07/2018 | | Hennie Spijkerman | AS-CO | |||
| 07/2018 | | Jarno Voorintholt | AT-C | | FC Groningen (J) | FC Groningen (J) |
| 07/2018 | | Sil Piek | G-AN |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/2019 | | Ahmad Mendes Moreira | FW |  | Telstar | Telstar |
| 01/2019 |  | Carlos Antuna | FW |  | Manchester City U21 | Man City U21 |
| 01/2019 | | Mateo Cassierra | FW | | AFC Ajax | Ajax |
| 08/2018 | | Jesper Drost | MF |  | Heracles Almelo | Heracles |
| 08/2018 | | Tom van Weert | FW | | Aalborg BK | Aalborg BK |
| 08/2018 | | Ruben Jenssen | MF |  | SK Brann | SK Brann |
| 07/2018 |  | Abdel el Ouazzane | GK |  | Jong Cambuur | Cambuur (J) |
| 07/2018 | | Lars Kramer | DF | | FC Groningen (J) | FC Groningen (J) |
| 07/2018 | | Tim Riksman | DF | | FC Groningen (J) | FC Groningen (J) |
| 07/2018 |  | Juninho Bacuna | MF |  | Huddersfield Town | Huddersfield |
| 07/2018 | | Gerald Postma | MF | | FC Groningen (J) | FC Groningen (J) |
| 07/2018 | | Yoëll van Nieff | MF | | Heracles Almelo | Heracles |
| 07/2018 |  | David Browne | FW |  | Auckland City FC | Auckland City |
| 07/2018 | | Tim Freriks | FW | | FC Groningen (J) | FC Groningen (J) |
| 07/2018 |  | Lars Veldwijk | FW | | Sparta Rotterdam | Sp. Rotterdam |