Karlsruher SC: every transfer in and out, fees paid and earned, squad market value, €900k spent and €19m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-01 | Dzenis Burnic | Karlsruher SC | Without Club | — |
| 2026-02-02 | Hyeok-kyu Kwon | FC Nantes | Karlsruher SC | Free |
| 2026-01-16 | Stephan Ambrosius | FC St. Gallen | Karlsruher SC | Loan |
| 2025-08-31 | Leon Opitz | Werder Bremen | Karlsruher SC | Loan |
| 2025-08-29 | Noah Rupp | Karlsruher SC | FC Thun | Loan |
| 2025-08-22 | Shio Fukuda | Mönchengladbach | Karlsruher SC | Loan |
| 2025-07-01 | Max Weiß | Karlsruher SC | Burnley | €4m |
| 2025-02-03 | Mustafe Abdullahu | Tirana | Karlsruher SC | Loan |
| 2025-01-30 | Noah Rupp | Karlsruher SC | StadeLO | Loan |
| 2025-01-17 | Mikkel Kaufmann | Heidenheim | Karlsruher SC | Loan |
| 2025-01-03 | Budu Zivzivadze | Karlsruher SC | Heidenheim | €2m |
| 2024-07-03 | Bambasé Conté | TSG Hoffenheim | Karlsruher SC | Loan |
| 2024-07-02 | Daniel O'Shaughnessy | Karlsruher SC | HJK Helsinki | Free |
| 2024-07-01 | Patrick Drewes | Karlsruher SC | VfL Bochum | Free |
| 2024-07-01 | Noah Rupp | FC Luzern | Karlsruher SC | Free |
| 2024-07-01 | Andrin Hunziker | Basel | Karlsruher SC | Loan |
| 2024-01-23 | Nicolai Rapp | Werder Bremen | Karlsruher SC | Free |
| 2023-08-17 | Igor Matanovic | Frankfurt | Karlsruher SC | Loan |
| 2023-07-17 | Dzenis Burnic | Heidenheim | Karlsruher SC | Free |
| 2023-07-01 | Tim Breithaupt | Karlsruher SC | Augsburg | €2.5m |