Holstein Kiel (Bundesliga): every transfer in and out, fees paid and earned, squad market value, €16m spent and €18m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-15 | Aldin Jakupović | Holstein Kiel | NK Bravo | Loan |
| 2026-01-26 | Magnus Knudsen | Holstein Kiel | Aarhus GF | €1.8m |
| 2026-01-14 | Aldin Jakupović | NK Bravo | Holstein Kiel | €400k |
| 2026-01-02 | Umut Tohumcu | Hoffenheim | Holstein Kiel | Loan |
| 2025-09-09 | Tymoteusz Puchacz | Holstein Kiel | Sabah FK | Loan |
| 2025-08-14 | Max Geschwill | Holstein Kiel | 1.FC Magdeburg | Loan |
| 2025-08-12 | Armin Gigovic | Holstein Kiel | Young Boys | €2.2m |
| 2025-08-11 | Lewis Holtby | Holstein Kiel | NAC Breda | Free |
| 2025-07-26 | Shuto Machino | Holstein Kiel | Mönchengladbach | €8m |
| 2025-07-01 | Timo Becker | Holstein Kiel | FC Schalke 04 | Free |
| 2025-07-01 | Thomas Dähne | Holstein Kiel | 1860 Munich | Free |
| 2025-07-01 | Stefan Schwab | PAOK | Holstein Kiel | Free |
| 2025-07-01 | Nicolai Remberg | Holstein Kiel | Hamburg | €2.4m |
| 2025-07-01 | Kasper Davidsen | Aalborg BK | Holstein Kiel | €1.6m |
| 2025-07-01 | Jonas Krumrey | Salzburg | Holstein Kiel | €150k |
| 2025-07-01 | Fiete Arp | Holstein Kiel | Odense BK | €250k |
| 2025-07-01 | Colin Kleine-Bekel | Holstein Kiel | VfL Bochum | Free |
| 2025-07-01 | Benedikt Pichler | Holstein Kiel | Hannover 96 | €625k |
| 2025-07-01 | Armin Gigovic | Rostov | Holstein Kiel | Free |
| 2025-01-22 | Ivan Nekic | NK Varazdin | Holstein Kiel | — |