Transfer-History
| Termin | Name | Pos | St. | Alter | | kam von | | ging zu | Ablöse |
|---|
| 06.01.2021 | Agu, Felix | LVLM | 70 | 19 |  | DSC Arminia Bielefeld |  | Hannover 96 | 2.362.500 € |
| 04.01.2021 | Park, Joo-Ho | - | 70 | 31 | | DSC Arminia Bielefeld |  | FC Augsburg | 600.000 € |
| 26.12.2020 | Tisserand, Marcel | IV | 73 | 25 | | DSC Arminia Bielefeld |  | 1. FC Union Berlin | 1 € |
| 19.12.2020 | Firmino, Roberto | - | 87 | 27 |  | 1. FC Kaiserslautern | | DSC Arminia Bielefeld | 4.000.000 € |
| 17.12.2020 | De Bruyne, Kevin | ZMZOM | 91 | 27 |  | SV Wehen Wiesbaden | | DSC Arminia Bielefeld | 826.875 € |
| 15.12.2020 | Milik, Arkadiusz | ST | 81 | 24 | | DSC Arminia Bielefeld |  | SG Dynamo Dresden | 1.500.000 € |
| 15.12.2020 | Kramaric, Andrej | ZOMZM | 82 | 27 | | DSC Arminia Bielefeld |  | SSV Jahn Regensburg | 2.200.000 € |
| 07.12.2020 | Gebauer, Christian | - | 67 | 25 |  | SV Waldhof Mannheim 07 | | DSC Arminia Bielefeld | 2.010.149 € |
| 28.11.2020 | Lukebakio, Dodi | RMRFLM | 77 | 21 |  | Bayer 04 Leverkusen | | DSC Arminia Bielefeld | 2.879.316 € |
| 22.11.2020 | Bicakcic, Ermin | - | 76 | 28 | | DSC Arminia Bielefeld |  | 1. FC Heidenheim | 300.000 € |
| 20.11.2020 | Bruma, Jeffrey | - | 74 | 27 | | DSC Arminia Bielefeld | | Bayer 04 Leverkusen | 330.750 € |
| 14.11.2020 | Muto, Yoshinori | - | 72 | 26 | | DSC Arminia Bielefeld |  | Hallescher FC | 894.677 € |
| 14.11.2020 | Berisha, Veton | ST | 69 | 24 | | DSC Arminia Bielefeld | | 1. FC Kaiserslautern | 1.000.001 € |
| 11.11.2020 | Gouweleeuw, Jeffrey | IV | 76 | 27 | | 1. FC Kaiserslautern | | DSC Arminia Bielefeld | 738.733 € |
| 05.11.2020 | Michel, Sven | STLFZOMLM | 69 | 28 | | DSC Arminia Bielefeld |  | TSV 1860 München | 209.475 € |
| 05.11.2020 | Röcker, Benedikt | - | 65 | 29 | | DSC Arminia Bielefeld |  | MSV Duisburg | 50.001 € |
| 04.11.2020 | Mockenhaupt, Sascha | IVRVRM | 66 | 27 | | Hannover 96 | | DSC Arminia Bielefeld | 583.333 € |
| 03.11.2020 | Tisserand, Marcel | IV | 73 | 25 | | 1. FC Kaiserslautern | | DSC Arminia Bielefeld | 469.037 € |
| 02.11.2020 | Rodríguez, James | ZOMRMZM | 82 | 27 | | 1. FC Union Berlin | | DSC Arminia Bielefeld | 700.001 € |
| 12.06.2020 | Badstuber, Holger | - | 75 | 29 | | FC Augsburg | | DSC Arminia Bielefeld | 101 € |
| 12.06.2020 | Langerak, Mitchell | - | 70 | 30 |  | Fortuna Düsseldorf | | DSC Arminia Bielefeld | 102 € |
| 10.06.2020 | Bruma, Jeffrey | - | 75 | 27 |  | VfL Wolfsburg | | DSC Arminia Bielefeld | 1 € |
| 09.06.2020 | Onisiwo, Karim | ST | 75 | 26 | | DSC Arminia Bielefeld | | 1. FC Kaiserslautern | 525.000 € |
| 04.06.2020 | Cueto, Lucas | - | 62 | 22 | | DSC Arminia Bielefeld |  | Borussia Mönchengladbach | 888.888 € |
| 27.05.2020 | Rakitic, Ivan | - | 85 | 30 |  | Holstein Kiel | | DSC Arminia Bielefeld | 950.000 € |