In Luke Ayling (loan, Leeds United) Finn Azaz (£2.5m, Aston Villa) Luke Thomas (loan, Leicester City) Matthew Hoppe (end of loan, San Jose Earthquakes)
Out Hayden Coulson (loan, Blackpool) Morgan Rogers (£8m, Aston Villa) Calum Kavanagh (undisclosed, Bradford City) Matt Crooks (£850,000, Real Salt Lake)
Middlesbrough total spent to date: £2.5m Middlesbrough total received to date: £8.9m
Middlesbrough net transfer balance: £6.4m