Middlesbrough FC (Premier League): every transfer in and out, fees paid and earned, squad market value, €217m spent and €227m earned. Tracked squad: ACTUAL Value €68m, in line with the market. Valued as of 2026-08-25.
| Date | Player | From | To | Fee |
|---|---|---|---|---|
| 2026-08-24 | Sam Byram | Leeds United | Middlesbrough FC | Free |
| 2026-08-20 | Sontje Hansen | Middlesbrough FC | Gaziantep FK | Loan |
| 2026-08-17 | Seny Dieng | Middlesbrough FC | APS Atromitos Athinon | Free |
| 2026-08-08 | Radek Vítek | Manchester United | Middlesbrough FC | €8.2m |
| 2026-08-08 | Kaly Sène | Middlesbrough FC | BSC Young Boys | Free |
| 2026-08-07 | Delano Burgzorg | Middlesbrough FC | Preston | Loan |
| 2026-08-04 | Max Arfsten | Columbus Crew | Middlesbrough FC | €6.5m |
| 2026-07-28 | Sebastian Berhalter | Vancouver Whitecaps FC | Middlesbrough FC | €1.8m |
| 2026-07-22 | Will Lankshear | Tottenham Hotspur | Middlesbrough FC | €12m |
| 2026-07-10 | Kyle Joseph | Hull City | Middlesbrough FC | €4.7m |
| 2026-07-04 | Dan Barlaser | Middlesbrough FC | Milton Keynes Dons | Free |
| 2026-07-03 | Dael Fry | Middlesbrough FC | Birmingham | Free |
| 2026-07-02 | Hayden Hackney | Middlesbrough FC | Everton FC | €19m |
| 2026-07-01 | Myles Peart-Harris | Oxford United | Middlesbrough FC | Free |
| 2026-02-20 | Seny Dieng | Middlesbrough FC | Sheffield Wednesday | Loan |
| 2026-02-02 | Joe Wildsmith | West Bromwich Albion | Middlesbrough FC | Loan |
| 2026-01-30 | Abdoulaye Kanté | Middlesbrough FC | AS Saint-Étienne | Loan |
| 2026-01-29 | Delano Burgzorg | Middlesbrough FC | Bristol City | Loan |
| 2026-01-27 | Jeremy Sarmiento | Brighton | Middlesbrough | Loan |
| 2026-01-26 | Lukas Engel | Middlesbrough | Salt Lake | €830k |