Bonner SC Yth.: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2019-07-01 | Youssoupha Niang | Bonner SC Yth. | 1.FC Köln Yth. | Free |
| 2013-07-01 | Blendi Idrizi | Bonner SC Yth. | Bonner SC U17 | — |
| 2012-07-01 | Blendi Idrizi | Friesdorf Jgd. | Bonner SC Yth. | Free |
| 2012-07-01 | Aleksandr Mishchenko | Bonner SC Yth. | Euskirchen U17 | Free |
| 2010-07-01 | Aleksandr Mishchenko | Euskirchen Yth. | Bonner SC Yth. | Free |