Duisburg Yth.: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2020-07-01 | İzzet Erdal | Duisburg Yth. | Mainz 05 Yth. | Free |
| 2019-07-01 | Wisdom Mike | Duisburg Yth. | M'gladbach Yth. | Free |
| 2019-07-01 | Baran Moğultay | Duisburg Yth. | Duisburg U17 | — |
| 2017-07-01 | İzzet Erdal | Leverkusen Yth. | Duisburg Yth. | Free |
| 2017-07-01 | Baran Moğultay | RW Ahlen Yth. | Duisburg Yth. | Free |
| 2017-07-01 | Armel Bella-Kotchap | Duisburg Yth. | VfL Bochum U17 | Free |
| 2016-07-01 | Armel Bella-Kotchap | Unterrath Yth. | Duisburg Yth. | Free |
| 2015-07-01 | Dudu | Duisburg Yth. | Duisburg U17 | — |
| 2014-07-01 | Marcel Lotka | Duisburg Yth. | Schalke 04 Yth. | Free |
| 2014-07-01 | Lukas Daschner | Duisburg Yth. | Duisburg U17 | — |
| 2014-07-01 | Dudu | FC M'glad. Yth. | Duisburg Yth. | Free |
| 2013-07-01 | Timon Weiner | Duisburg Yth. | Schalke 04 Yth. | Free |
| 2013-07-01 | Marcel Lotka | Hamborn 07 Yth. | Duisburg Yth. | Free |
| 2013-07-01 | Lukas Daschner | Schalke 04 Yth. | Duisburg Yth. | Free |
| 2010-07-01 | Timon Weiner | Rot-Weiss Essen | Duisburg Yth. | Free |
| 2010-07-01 | Christopher Antwi-Adjei | Duisburg Yth. | Duisburg U17 | — |