Graham Potter has already strengthened his squad for the 2020/21 Premier League season, however with four weeks of the window remaining, there is still room for plenty more.
In the meantime, scroll and click through the pages to see how Albion's transfer business so far compares to their top-flight rivals:
1. ARSENAL
IN: Gabriel Magalhaes (Lille), Willian (Chelsea), William Saliba (Saint-Etienne), Pablo Mari (Flamengo), Cedric Soares (Southampton). OUT: Henrikh Mkhitaryan (Roma), Sam Greenwood (Leeds), Dinos Mavropanos - loan (Stuttgart) ,Matt Smith - loan (Swindon), Jordi Osei-Tutu - loan (Cardiff). Photo: FRANCOIS LO PRESTI
2. ASTON VILLA
IN: Matty Cash (Nottingham Forest), Ben Chrisene (Exeter). OUT: Kelsey Mooney (Scunthorpe), James Chester (Stoke), James Bree (Luton), Callum O'Hare (Coventry). Photo: Nathan Stirk
3. BRIGHTON & HOVE ALBION
IN: Adam Lallana (Liverpool), Joel Veltman (Ajax), Jensen Weir (Wigan), Lars Dendoncker (Club Brugge), Zak Emmerson (Oldham). OUT: Leon Balogun (Rangers), George Cox (Fortuna Sittard), Anthony Knockaert (Fulham), Martin Montoya (Real Betis), Matt Clarke - loan (Derby), Aaron Mooy (Shanghai SIPG), Glenn Murray - loan (Watford), Shane Duffy - loan (Celtic). Photo: GLYN KIRK
4. BURNLEY
IN: Will Norris (Wolves) OUT: Joe Hart (Tottenham), Jeff Hendrick (Newcastle), Aaron Lennon (free agent), Adam Legzdins (free agent). Photo: Robert Hradil