Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 05/2021 |  | Jules Gaudin | MF |  | EA Guingamp B | EA Guingamp B |
| 03/2021 | | Hady Camara | DF | | EA Guingamp B | EA Guingamp B |
| 03/2021 | | Yoann Cathline | FW |  | EA Guingamp U19 | U19 |
| 03/2021 | | Mathéo Didot | MF | | EA Guingamp B | EA Guingamp B |
| 01/2021 | | Tristan Muyumba | MF | | EA Guingamp B | EA Guingamp B |
| 10/2020 | | Gaëtan Robail | FW |  | RC Lens | RC Lens |
| 09/2020 | | Baptiste Roux | DF | | EA Guingamp B | EA Guingamp B |
| 08/2020 |  | Mehmed Baždarević | MA | |||
| 08/2020 |  | Alaixys Romao | MF |  | Stade de Reims | Stade Reims |
| 08/2020 |  | Nicolai Larsen | GK |  | FC Nordsjælland | Nordsjælland |
| 08/2020 |  | Philipe Sampaio | DF |  | CD Tondela | CD Tondela |
| 07/2020 | | Enzo Basilio | GK |  | US Concarneau | Concarneau |
| 07/2020 |  | Logan Ndenbe | DF |  | KV Oostende | KV Oostende |
| 07/2020 |  | Guessouma Fofana | MF |  | Le Mans FC | Le Mans |
| 07/2020 | | Jérémy Livolant | MF |  | FC Sochaux | Sochaux |
| 07/2020 | | Matthias Phaëton | FW |  | FC Borgo | FC Borgo |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 02/2021 | | Louis Carnot | MF | | US Concarneau | Concarneau |
| 02/2021 |  | Yeni N’Gbakoto | FW |  | Panathinaikos A.O. | Panathinaikos |
| 01/2021 |  | Pedro Rebocho | DF |  | Paços de Ferreira | Ferreira |
| 01/2021 | | Gaëtan Robail | FW |  | Valenciennes FC | VAFC |
| 10/2020 | | Christophe Kerbrat | DF |  | Stade Briochin | Stade Briochin |
| 07/2020 | | Marc-Aurèle Caillard | GK |  | FC Metz | Metz |
| 07/2020 |  | Mehdi Merghem | MF |  | AS Nancy Lorraine | AS Nancy |
| 07/2020 | | Théo Guivarch | GK |  | Rodez AF | Rodez AF |
| 07/2020 | | Yohan Baret | DF |  | US Avranches | US Avranches |
| 07/2020 | | Camille Coudé | G-AN |  | Vannes OC | VOC |