Middlesbrough January transfers and net spend: Every confirmed signing and sale for Kim Hellberg's side in 2026 winter window

Middlesbrough have managed to keep themselves in the top two of the Championship table for much of the campaign, despite the upheaval that came with head coach Rob Edwards leaving for Wolverhampton Wanderers in November.

While successor Kim Hellberg has kept the North-East outfit on track, Boro are continuing to make changes to the first-team squad at the Riverside Stadium.

Here, Sports Mole rounds up all of Middlesbrough's confirmed ins and outs during the 2026 January transfer window, as well as looking at their net spend and latest transfer rumours.

Middlesbrough confirmed transfers in: January 2026

Lukas Engel (FC Cincinnati) - end of loan

Adilson Malanda (Charlotte FC) - end of loan

Law McCabe (Plymouth Argyle) - end of loan

Leo Castledine (Chelsea) - £1m

Finley Munroe (Aston Villa) - £300,000

Jeremy Sarmiento (Brighton & Hove Albion) - Loan

Joe Wildsmith (GK | Loan from West Bromwich Albion)

Middlesbrough confirmed transfers out: January 2026

Lukas Engel (LB | £750,000 to Real Salt Lake)

Charlie Lennon (RW | Undisclosed to Barnsley)

Delano Burgzorg (LW | Loan to Bristol City)

Abdoulaye Kante (DM | Loan to Saint-Etienne)

Sverre Nypan (CM | End of loan from Man City)

Middlesbrough net spend: January 2026

Middlesbrough total spend January 2026: £1m

Middlesbrough total income January 2026: £750k

Middlesbrough net spend January 2026: -£550k

Latest Middlesbrough transfer rumours for January 2026

In

Jeremy Sarmiento (Brighton & Hove Albion)

Charlie Hughes (Hull City)

Davis Keillor-Dunn (Barnsley)

Out

© Imago / ZUMA Press Wire

 

Seny Dieng (Hull City)

Max Arfsten (Columbus Crew)

Delano Burgzorg (Bristol City)

You can find a complete list of the latest Middlesbrough transfer rumours by clicking here

When does the 2026 January transfer window open and close?

The January transfer window opened on Thursday, January 1 for all English and Scottish clubs, and will run through to the first weekday of February.

This means that deadline day for the 2026 January transfer window falls on Monday, February 2, with the window closing at 7pm GMT.