Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 11/2021 |  | Jesper Wichstrøm Johansen | FW |  | Sarpsborg 08 U19 | U19 |
| 10/2021 | | Markus Welinder | DF | | Sarpsborg 08 U19 | U19 |
| 09/2021 | | Leo Hermansen | MF | | Sarpsborg 08 U19 | U19 |
| 08/2021 |  | Mikkel Maigaard | MF |  | Strømsgodset IF | Strømsgodset |
| 08/2021 |  | Dario Čanađija | MF |  | Astra Giurgiu | Astra |
| 08/2021 |  | Amadou Camara | FW |  | Oslo Football Academy | Oslo Football Academy |
| 08/2021 |  | Guillermo Molins | FW |  | Rosenborg BK | Rosenborg |
| 08/2021 | | Aboubacar Konté | FW |  | FK Jerv | FK Jerv |
| 07/2021 | | Leander Øy | GK | |||
| 06/2021 | | Lars Bohinen | MA | |||
| 05/2021 |  | Felix Melki | DF |  | AIK | AIK |
| 03/2021 |  | Moubarack Compaoré | FW | | Oslo Football Academy | Oslo Football Academy |
| 03/2021 | | Kristian Opseth | FW |  | Bengaluru FC | Bengaluru FC |
| 03/2021 | | Louise Rodgers Holte | MEN-C | |||
| 02/2021 |  | Ben Karamoko | DF |  | FK Haugesund | Haugesund |
| 01/2021 |  | Rashad Muhammed | FW |  | Erzurumspor FK | Erzurumspor FK |
| 01/2021 |  | Emil Pálsson | MF |  | Sandefjord Fotball | Sandefjord |
| 01/2021 | | Magnus Edlund | AS-CO | |||
| 01/2021 | | Anders Kristiansen | GK |  | Union Saint-Gilloise | St. Gilloise |
| 01/2021 | | Eirik Wichne | DF |  | IK Start | IK Start |
| 01/2021 | | Ibrahima Koné | FW | | FK Haugesund | Haugesund |
| 01/2021 | | Hasan Jahić | DF | |||
| 01/2021 | | Steffen Skålevik | FW | | IK Start | IK Start |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 08/2021 | | Emir Derviškadić | MF | | IK Start | IK Start |
| 08/2021 |  | Laurent Mendy | MF |  | Strømmen IF | Strømmen IF |
| 08/2021 | | Steffen Skålevik | FW |  | Sogndal IL | Sogndal IL |
| 08/2021 | | Emil Pálsson | MF | | Sogndal IL | Sogndal IL |
| 08/2021 |  | Sulayman Bojang | DF | | FK Haugesund | Haugesund |
| 08/2021 | | Felix Melki | DF | | AIK | AIK |
| 06/2021 | | Mikael Stahre | MA |  | IFK Göteborg | IFK Göteborg |
| 05/2021 | | Aboubacar Konté | FW | | FK Jerv | FK Jerv |
| 05/2021 |  | Simon Thomas | GK |  | Tromsø IL | Tromsø |
| 05/2021 | | Alexander Tveter | FW | | Sandefjord Fotball | Sandefjord |
| 04/2021 | | William Lunde | MF |  | Ullensaker/Kisa IL | Ullensaker/Kisa IL |
| 02/2021 | | Hasan Jahić | DF |  | FK Mladost Doboj-Kakanj | FK Mladost |
| 01/2021 |  | Jordan Adéoti | MF |  | FC Annecy | FC Annecy |
| 01/2021 |  | David Mitov Nilsson | GK |  | IK Sirius | IK Sirius |
| 01/2021 |  | Pablo Arboine | DF |  | Santos de Guápiles | Santos |
| 01/2021 | | Tobias Heintz | FW |  | Kasımpaşa SK | Kasımpaşa |