Alem. Aachen: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-01 | Stefan Bajic | R. Strasbourg | Alem. Aachen | Free |
| 2025-01-09 | Jan Olschowsky | Mönchengladbach | Alem. Aachen | Loan |
| 2019-07-01 | Blendi Idrizi | Alem. Aachen | Fortuna Köln | Free |
| 2018-07-01 | Tobias Mohr | Alem. Aachen | Greuther Fürth | Free |
| 2018-07-01 | Blendi Idrizi | BW Friesdorf | Alem. Aachen | Free |
| 2015-07-01 | Kevin Behrens | Alem. Aachen | RW Essen | Free |
| 2014-07-04 | Kevin Behrens | Hannover 96 II | Alem. Aachen | Free |
| 2014-07-01 | Tobias Mohr | Aachen U19 | Alem. Aachen | — |
| 2014-07-01 | Nazım Sangaré | Alem. Aachen | Düsseldorf II | Free |
| 2013-07-25 | Nazım Sangaré | M'gladbach II | Alem. Aachen | Free |
| 2013-07-01 | Mark Flekken | Alem. Aachen | Greuther Fürth | Free |
| 2012-07-01 | Mark Flekken | Aachen U19 | Alem. Aachen | — |
| 2012-07-01 | Boy Waterman | Alem. Aachen | PSV Eindhoven | Free |
| 2012-07-01 | Alper Uludağ | Alem. Aachen | FC Ingolstadt | Free |
| 2011-07-01 | Boy Waterman | AZ Alkmaar | Alem. Aachen | Free |
| 2010-07-02 | Tolgay Arslan | Hamburg | Alem. Aachen | Loan |