NSÍ (1. Deild): every transfer in and out, fees paid and earned, squad market value.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-01 | Sammy Skytte | FA Šiauliai | NSÍ | Free |
| 2026-06-30 | Sammy Skytte | FA Šiauliai | NSÍ | Free |
| 2026-03-10 | Henrik Hatlen Osen | NSÍ | Lokomotiv Oslo | Free |
| 2026-03-10 | Adrian Edqvist | Östersunds FK | NSÍ | Free |
| 2026-02-17 | Hassou Diaby | NSÍ | Åsane | Free |
| 2026-01-30 | Alex Freyr Elísson | Fram | NSÍ | Free |
| 2026-01-01 | Kevin Jablinski | NSÍ | TBC | Free |
| 2026-01-01 | Fabian Østigård Ness | NSÍ | FF Jaro | Free |
| 2025-07-01 | Daniel Obbekjaer | Breidablik | NSÍ | Free |
| 2025-03-27 | Player | NSÍ | Kristianstad | Free |
| 2025-03-04 | Lars Markmanrud | Jerv | NSÍ | Free |
| 2025-03-03 | Kevin Jablinski | Jerv | NSÍ | Free |
| 2025-03-03 | Brandur Hendriksson | Fredrikstad Fotballklubb | NSÍ | Free |
| 2025-02-09 | Player | NSÍ | Bosna Neuchâtel | Free |
| 2025-02-09 | Hassou Diaby | SD Ejea | NSÍ | Free |
| 2025-02-07 | Player | EB / Streymur | NSÍ | Free |
| 2025-01-08 | Player | B36 | NSÍ | Free |
| 2025-01-08 | Player | B36 | NSÍ | Free |
| 2025-01-08 | Fabian Østigård Ness | B36 | NSÍ | Free |
| 2025-01-01 | Yassine El Ouatki | NSÍ | VPS | Free |