EA Guingamp (Ligue 1): every transfer in and out, fees paid and earned, squad market value, €4.8m spent and €49m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-01-21 | Dylan Ourega | Guingamp | KVC Westerlo | €1m |
| 2026-01-19 | Brown Irabor | EA Guingamp | FC Koper | Free |
| 2025-09-11 | Jacques Siwe | Guingamp | Rubin Kazan | €2.5m |
| 2025-08-05 | Brighton Labeau | Guingamp | FC Thun | €650k |
| 2025-07-29 | Akim Abdallah | Rodez AF | Guingamp | Free |
| 2025-07-24 | Hugo Picard | Guingamp | Columbus | €2m |
| 2025-07-18 | Babacar Niasse | EA Guingamp | DH El-Jadida | Free |
| 2025-07-01 | Erwin Koffi | Neftchi | EA Guingamp | Free |
| 2025-07-01 | Matthis Riou | Guingamp | La Louvière | Free |
| 2025-07-01 | Lenny Vallier | Guingamp | Nacional | Free |
| 2025-02-03 | Théo Le Bris | FC Lorient | Guingamp | Loan |
| 2024-09-02 | Mehdi Merghem | Guingamp | Farense | — |
| 2024-07-30 | Dylan Ourega | FC Metz B | Guingamp | Free |
| 2024-07-26 | Brighton Labeau | Lausanne-Sport | Guingamp | €400k |
| 2024-07-18 | Baptiste Roux | Guingamp | Avs FS | Free |
| 2024-07-17 | Maxime Sivis | Guingamp | FC Dinamo | Free |
| 2024-07-05 | Ayman Ben Mohamed | EA Guingamp | ES Tunis | Free |
| 2024-07-01 | Baptiste Guillaume | Guingamp | Almere City | Free |
| 2024-07-01 | Amine El Ouazzani | Guingamp | Braga | €3.5m |
| 2024-02-01 | Lebogang Phiri | C. Rizespor | Guingamp | Free |