Birmingham: every transfer in and out, fees paid and earned, squad market value, €67m spent and €79m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-02-02 | Scott Wright | Birmingham | Dundee FC | Loan |
| 2026-02-02 | Jonathan Panzo | Rio Ave | Birmingham | — |
| 2026-02-01 | Willum Thór Willumsson | Birmingham | NEC Nijmegen | €1.5m |
| 2026-01-30 | Bailey Peacock-Farrell | Birmingham | Blackpool | €50k |
| 2026-01-24 | Alfons Sampsted | Birmingham | Go Ahead Eagles | €250k |
| 2026-01-23 | Marc Leonard | Birmingham | Heart of Midl. | Loan |
| 2026-01-19 | Ibrahim Osman | Brighton | Birmingham | Loan |
| 2026-01-17 | Jhon Solís | Girona | Birmingham | Loan |
| 2026-01-15 | Lyndon Dykes | Birmingham | Charlton | €100k |
| 2026-01-05 | Emil Hansson | Birmingham | Excelsior | Free |
| 2025-08-22 | Lewis Koumas | Liverpool U21 | Birmingham | Loan |
| 2025-08-07 | Marvin Ducksch | Werder Bremen | Birmingham | €2m |
| 2025-08-05 | Grant Hanley | Birmingham | Hibernian FC | Free |
| 2025-08-01 | Emil Hansson | Birmingham | Blackpool | Loan |
| 2025-07-25 | Eiran Cashin | Brighton | Birmingham | Loan |
| 2025-07-18 | Bailey Peacock-Farrell | Birmingham | Blackpool | Loan |
| 2025-07-10 | Emmanuel Longelo | Birmingham | Motherwell FC | €150k |
| 2025-07-06 | Kanya Fujimoto | Gil Vicente | Birmingham | Free |
| 2025-07-05 | Kyogo Furuhashi | Stade Rennais | Birmingham | €9m |
| 2025-07-04 | Bright Osayi-Samuel | Fenerbahçe | Birmingham | Free |