Brentford FC (Premier League): every transfer in and out, fees paid and earned, squad market value, €440m spent and €377m earned.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-07-01 | Ryan Trevitt | Brentford | Without Club | — |
| 2026-07-01 | Jannik Schuster | Salzburg | Brentford | €18m |
| 2026-02-02 | Frank Onyeka | Brentford | Coventry | Loan |
| 2026-02-02 | Benjamin Arthur | Brentford | Celtic | Loan |
| 2026-01-15 | Yunus Konak | Brentford | Oxford United | Loan |
| 2026-01-15 | Matthew Cox | Brentford | Shrewsbury | Loan |
| 2026-01-11 | Kaye Furo | Club Brugge | Brentford | €10m |
| 2026-01-09 | Myles Peart-Harris | Brentford | Oxford United | — |
| 2025-09-01 | Yoane Wissa | Brentford | Newcastle | €58m |
| 2025-09-01 | Reiss Nelson | Arsenal | Brentford | Loan |
| 2025-08-21 | Mads Roerslev | Brentford | Southampton | €3.5m |
| 2025-08-17 | Jayden Meghoma | Brentford FC | Rangers | Loan |
| 2025-08-17 | Jayden Meghoma | Brentford | Rangers | Loan |
| 2025-08-16 | Dango Ouattara | Bournemouth | Brentford | €43m |
| 2025-07-31 | Ryan Trevitt | Brentford | Wigan | Loan |
| 2025-07-22 | Ji-soo Kim | Brentford | 1.FC K'lautern | Loan |
| 2025-07-21 | Bryan Mbeumo | Brentford | Man Utd | €75m |
| 2025-07-15 | Jordan Henderson | Ajax | Brentford | Free |
| 2025-07-10 | Christian Nørgaard | Brentford | Arsenal | €12m |
| 2025-07-04 | Julian Eyestone | Brentford B | Brentford | — |