BK Häcken (Allsvenskan): every transfer in and out, fees paid and earned, squad market value, €11m spent and €53m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-01 | Silas Andersen | Häcken | Sporting | €7.3m |
| 2026-03-06 | David Andersson | Norrköping | Häcken | €375k |
| 2026-02-23 | David Seger | CSKA Sofia | Häcken | Free |
| 2026-02-18 | Jeremy Agbonifo | Lens | Häcken | Loan |
| 2026-02-10 | Marius Lode | Häcken | Brisbane Roar | Loan |
| 2026-02-03 | Malte Ljungkull | BK Häcken U19 | Häcken | — |
| 2026-01-30 | Samuel Leach Holm | Häcken | Fredrikstad FK | €300k |
| 2026-01-29 | Gustav Lindgren | Peterborough | Häcken | — |
| 2026-01-29 | Filip Helander | Omonia Nicosia | Häcken | — |
| 2026-01-26 | Simon Gustafson | Häcken | Korona Kielce | Free |
| 2026-01-26 | Isak Brusberg | Häcken | Raków | €750k |
| 2026-01-18 | John Paul Dembe | Häcken | Sigma Olomouc | €1.5m |
| 2025-10-06 | Harry Hilvenius | BK Häcken U19 | Häcken | — |
| 2025-09-05 | Srdjan Hrstic | Häcken | SCR Altach | Loan |
| 2025-08-29 | Filip Helander | Omonia Nicosia | Häcken | Loan |
| 2025-08-27 | Nikola Zecevic | Häcken | Zelez. Pancevo | Loan |
| 2025-08-12 | Christ Wawa | RC Abidjan | Häcken | €270k |
| 2025-08-01 | Sabri Kondo | Singida SC | Häcken | €200k |
| 2025-07-16 | Danilo Al-Saed | Heerenveen | Häcken | €400k |
| 2025-07-08 | Sanders Ngabo | AC Horsens | Häcken | €1m |