Fjölnir: every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2025-02-01 | Júlíus Mar Júlíusson | Fjölnir | KR Reykjavík | — |
| 2022-07-01 | Hilmir Rafn Mikaelsson | Fjölnir | Venezia U19 | — |
| 2022-01-01 | Júlíus Mar Júlíusson | Fjölnir U19 | Fjölnir | — |
| 2021-08-16 | Hilmir Rafn Mikaelsson | Fjölnir | Venezia U19 | Loan |
| 2020-02-07 | Hilmir Rafn Mikaelsson | Fjölnir U19 | Fjölnir | — |
| 2019-05-15 | Valgeir Lunddal | Fjölnir | Valur | — |
| 2017-10-15 | Valgeir Lunddal | Fjölnir U19 | Fjölnir | — |
| 2017-03-06 | Vidar Ari Jónsson | Fjölnir | SK Brann | Free |
| 2016-03-02 | Tobias Salquist | Silkeborg IF | Fjölnir | Loan |
| 2010-12-06 | Vidar Ari Jónsson | Fjölnir U19 | Fjölnir | — |