Fort. Köln Yth.: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2021-07-01 | Elione Fernandes Neto | Fort. Köln Yth. | Düsseldorf U17 | Free |
| 2019-07-01 | Yılmaz Aktaş | Fort. Köln Yth. | Hohenlind U17 | Free |
| 2019-07-01 | Emin Kujovic | Fort. Köln Yth. | F. Cologne U17 | — |
| 2019-07-01 | Elione Fernandes Neto | 1.FC Köln Yth. | Fort. Köln Yth. | Free |
| 2018-07-01 | Yılmaz Aktaş | FC Pesch Jgd. | Fort. Köln Yth. | Free |
| 2016-07-01 | Joselpho Barnes | Fort. Köln Yth. | Schalke 04 Yth. | Free |
| 2016-07-01 | Emin Kujovic | SC West Yth. | Fort. Köln Yth. | Free |
| 2015-07-01 | Joselpho Barnes | B. G'bach Yth. | Fort. Köln Yth. | Free |