KAS Eupen (Jupiler Pro League): every transfer in and out, fees paid and earned, squad market value, €7.9m spent and €26m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-01-31 | Yoram Zague | PSG | KAS Eupen | Loan |
| 2026-01-21 | Mustafa Mashaal | Al-Sadd | KAS Eupen | Loan |
| 2026-01-21 | Kikas | Estrela Amadora | KAS Eupen | — |
| 2025-08-22 | Regan Charles-Cook | KAS Eupen | Motherwell FC | Free |
| 2025-07-25 | Uri Busquets | FC Andorra | KAS Eupen | Free |
| 2025-07-07 | Shayne Pattynama | KAS Eupen | Buriram United | Free |
| 2025-07-07 | Shayne Pattynama | KAS Eupen | Buriram Utd. | Free |
| 2025-07-01 | Jan Gorenc | KAS Eupen | NK Olimpija | Free |
| 2025-07-01 | Milos Pantovic | KAS Eupen | OFK Beograd | Free |
| 2025-02-20 | G. Innocent | KAS Eupen | FK Riteriai | Free |
| 2024-09-08 | Jan Kral | KAS Eupen | Sigma Olomouc | — |
| 2024-08-30 | Jason Davidson | KAS Eupen | Panserraikos | Free |
| 2024-08-29 | Boris Lambert | KAS Eupen | Willem II | — |
| 2024-08-17 | Gary Magnée | KAS Eupen | Cercle Brugge | €700k |
| 2024-07-25 | Victor Pálsson | KAS Eupen | Plymouth | Free |
| 2024-07-01 | Matteo Filorizzo | KAS Eupen U23 | KAS Eupen | — |
| 2024-07-01 | Isaac Christie-Davies | KAS Eupen | Without Club | — |
| 2024-02-01 | Shayne Pattynama | Viking FK | KAS Eupen | Free |
| 2024-01-24 | Jan Gorenc | KAS Eupen | NK Bravo | Loan |
| 2024-01-04 | Renaud Emond | Standard Liège | KAS Eupen | Free |