Alemannia Aachen (3. Liga): every transfer in and out, fees paid and earned, squad market value, €165k spent and €200k earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-08-20 | Florian Heister | Alemannia Aachen | Fortuna Köln | Free |
| 2026-08-12 | Kacper Koscierski | VfL Bochum | Alemannia Aachen | Loan |
| 2026-08-04 | Georg Ermolaev | SC Paderborn 07 U23 | Alemannia Aachen | Loan |
| 2026-07-30 | Meiko Wäschenbach | Karlsruher SC | Alemannia Aachen | Free |
| 2026-07-09 | Ken Izekor | Bayer Leverkusen U19 | Alemannia Aachen | Free |
| 2026-07-02 | Nils Winter | Alemannia Aachen | Rot-Weiß Oberhausen | Free |
| 2026-07-01 | Mika Schroers | Arminia Bielefeld | Alemannia Aachen | €150k |
| 2026-07-01 | Daniel Starodid | Eintracht Frankfurt II | Alemannia Aachen | Free |
| 2026-07-01 | Louis Köster | Holstein Kiel | Alemannia Aachen | €15k |
| 2026-07-01 | Stefan Bajić | RC Strasbourg Alsace | Alemannia Aachen | Free |
| 2026-07-01 | Matti Wagner | SpVgg Greuther Fürth | Alemannia Aachen | Free |
| 2026-07-01 | Felix Meyer | Alemannia Aachen | Schalke 04 II | Free |
| 2026-07-01 | Gianluca Gaudino | Alemannia Aachen | Aalen | Free |
| 2026-07-01 | Lamar Yarbrough | Alemannia Aachen | FC Dila | Free |
| 2026-02-02 | Omar Sillah | SpVgg Greuther Fürth | Alemannia Aachen | Loan |
| 2026-02-02 | Gideon Jung | Kayserispor | Alemannia Aachen | Free |
| 2026-02-02 | Jonas Oehmichen | Dynamo Dresden | Alemannia Aachen | Loan |
| 2026-01-14 | Fotios Pseftis | FC Lugano | Alemannia Aachen | Loan |
| 2026-01-08 | Petros Bagkalianis | Larissa | Alemannia Aachen | Free |
| 2025-09-01 | Marius Wegmann | Wehen Wiesbaden | Alemannia Aachen | Free |