Transfer-History
| Termin | Name | Pos | St. | Alter | | kam von | | ging zu | Ablöse |
|---|
| 23.10.2019 | Bruma, Jeffrey | - | 74 | 27 |  | 1. FC Union Berlin |  | VfL Wolfsburg | 75.000 € |
| 23.10.2019 | Buballa, Daniel | - | 68 | 28 |  | SG Dynamo Dresden | | 1. FC Union Berlin | 600.001 € |
| 21.10.2019 | Skjelbred, Per Ciljan | TW | 76 | 31 | | 1. FC Union Berlin |  | SV Darmstadt 98 | 101 € |
| 21.10.2019 | Bargfrede, Philipp | TW | 75 | 29 | | 1. FC Union Berlin |  | 1. FSV Mainz 05 | 50.000 € |
| 21.10.2019 | Gebre Selassie, Theodor | TW | 76 | 32 | | 1. FC Union Berlin | | SV Darmstadt 98 | 369.369 € |
| 16.10.2019 | Bell, Stefan | IV | 74 | 27 | | 1. FSV Mainz 05 | | 1. FC Union Berlin | 750.000 € |
| 11.04.2019 | Kiyotake, Hiroshi | TW | 72 | 29 |  | Fortuna Düsseldorf | | 1. FC Union Berlin | 250.000 € |
| 06.04.2019 | Mvogo, Yvon | TW | 76 | 24 | | 1. FC Union Berlin |  | Holstein Kiel | 1.000.000 € |
| 31.03.2019 | Jojic, Milos | - | 74 | 26 |  | DSC Arminia Bielefeld | | 1. FC Union Berlin | 800.001 € |
| 18.03.2019 | Gikiewicz, Rafal | TW | 73 | 31 |  | 1. FC Magdeburg | | 1. FC Union Berlin | 80.001 € |
| 08.03.2019 | Chessa, Dennis | RFZOMRM | 60 | 26 | | 1. FC Union Berlin |  | SpVgg Unterhaching | 25.000 € |
| 08.03.2019 | Wassey, Massih | TW | 66 | 30 | | 1. FC Union Berlin |  | Projektleitung | 1 € |
| 01.03.2019 | Klaas, Sebastian | ZMZOM | 61 | 20 | | 1. FC Union Berlin | | SpVgg Unterhaching | 50.000 € |
| 01.03.2019 | Leistner, Toni | IV | 73 | 28 | | 1. FC Union Berlin |  | TSG 1899 Hoffenheim | 50.000 € |
| 23.02.2019 | Türpitz, Philip | - | 69 | 27 | | 1. FC Union Berlin |  | SV Wehen Wiesbaden | 50.000 € |
| 20.02.2019 | Fabián, Marco | - | 76 | 29 | | 1. FC Magdeburg | | 1. FC Union Berlin | 600.000 € |
| 19.02.2019 | Koo, Ja-Cheol | - | 76 | 29 | | Holstein Kiel | | 1. FC Union Berlin | 300.001 € |
| 19.02.2019 | Kvesic, Mario | - | 68 | 26 | | 1. FC Union Berlin | | VfL Wolfsburg | 330.751 € |
| 17.02.2019 | Bargfrede, Philipp | TW | 76 | 29 |  | F.C. Hansa Rostock | | 1. FC Union Berlin | 201 € |
| 09.02.2019 | Bruma, Jeffrey | - | 75 | 27 | | VfL Wolfsburg | | 1. FC Union Berlin | 1 € |
| 05.02.2019 | Gogia, Akaki | - | 71 | 26 |  | SC Freiburg | | 1. FC Union Berlin | 250.000 € |
| 28.01.2019 | Kehrer, Thilo | IV | 77 | 22 | | 1. FC Union Berlin |  | FC Bayern München | 2.500.000 € |
| 26.01.2019 | Skjelbred, Per Ciljan | TW | 77 | 31 | | VfL Wolfsburg | | 1. FC Union Berlin | 1 € |
| 10.01.2019 | Wassey, Massih | TW | 66 | 30 | | SV Wehen Wiesbaden | | 1. FC Union Berlin | 101 € |
| 06.01.2019 | Chessa, Dennis | RFZOMRM | 60 | 26 |  | FC Schalke 04 | | 1. FC Union Berlin | 25.000 € |