EFL Championship

England

31 Aug 2026

F. Marschall

Stevenage

Millwall

UNDISCLOSED

31 Aug 2026

R. Esse

Crystal Palace

Millwall

LOAN

31 Aug 2026

Morato

Nottingham Forest

West Ham

LOAN

31 Aug 2026

A. Boiro

Athletic Club

West Ham

LOAN

30 Aug 2026

E. Austbö

Viking

West Ham

UNDISCLOSED

29 Aug 2026

E. Austbö

Viking

West Ham

UNDISCLOSED

20 Aug 2026

J. Osei-Tutu

Bolton

Millwall

FREE

20 Aug 2026

D. Mukasa

Manchester City

West Ham

LOAN

18 Aug 2026

J. Piroe

Leeds

West Ham

LOAN

14 Aug 2026

A. Engels

Celtic

West Ham

UNDISCLOSED

13 Aug 2026

A. Engels

Celtic

West Ham

UNDISCLOSED

9 Aug 2026

M. Solomon

Tottenham

West Ham

UNDISCLOSED

8 Aug 2026

M. Solomon

Tottenham

West Ham

UNDISCLOSED

5 Aug 2026

L. Dykes

Charlton

Millwall

FREE

5 Aug 2026

J. Veltman

Brighton

West Ham

FREE

4 Aug 2026

L. Dykes

Charlton

Millwall

FREE

4 Aug 2026

J. Veltman

Brighton

West Ham

FREE

1 Aug 2026

D. Batth

Derby

Millwall

FREE

25 Jul 2026

K. Lisbie

Peterborough

Millwall

UNDISCLOSED

24 Jul 2026

K. Lisbie

Peterborough

Millwall

UNDISCLOSED

14 Jul 2026

E. Baggott

Ipswich

Millwall

UNDISCLOSED

8 Jul 2026

M. Sykes

Bristol City

Millwall

FREE

5 Jul 2026

M. Servais

KV Mechelen

Millwall

UNDISCLOSED

4 Jul 2026

M. Servais

KV Mechelen

Millwall

UNDISCLOSED

2 Jul 2026

Archie Kirby

Millwall

Millwall

-

30 Jun 2026

J. Metcalfe

Bradford

Millwall

UNDISCLOSED

30 Jun 2026

T. Arconte

Rodez

Millwall

UNDISCLOSED

30 Jun 2026

K. Lamadrid

Deportivo La Guaira

West Ham

UNDISCLOSED

29 Jun 2026

J. Osei-Tutu

Bolton

Millwall

FREE

29 Jun 2026

Alfie Massey

Southend

Millwall

RETURN FROM LOAN

29 Jun 2026

Jack Howland

Barnet

Millwall

RETURN FROM LOAN

29 Jun 2026

M. Sykes

Bristol City

Millwall

FREE

29 Jun 2026

D. Batth

Derby

Millwall

FREE

29 Jun 2026

T. Arconte

Rodez

Millwall

UNDISCLOSED

29 Jun 2026

J. Metcalfe

Bradford

Millwall

UNDISCLOSED

29 Jun 2026

R. Battrum

Braintree

West Ham

RETURN FROM LOAN

29 Jun 2026

K. Casey

Leyton Orient

West Ham

RETURN FROM LOAN

29 Jun 2026

K. Lamadrid

Deportivo La Guaira

West Ham

UNDISCLOSED

29 Jun 2026

K. Hegyi

MTK Budapest

West Ham

RETURN FROM LOAN

29 Jun 2026

E. Álvarez

Fenerbahçe

West Ham

RETURN FROM LOAN

29 Jun 2026

M. Cornet

Genoa

West Ham

RETURN FROM LOAN

29 Jun 2026

N. Füllkrug

AC Milan

West Ham

RETURN FROM LOAN

29 Jun 2026

C. Marshall

VfL Bochum

West Ham

RETURN FROM LOAN