It can be hard to keep track of all the activity during what is a manic month, so that’s where we come in!
Keep up to date with all the business being done by each of the 12 Premiership clubs throughout January below.
29. Mark Byrne (Glenavon)
With Rory Brown transfer listed at "his own request" in December, Stephen McDonnell moved to strengthen his goalkeeping department with 23-year-old Mark Byrne arriving from Dundalk. He has also had previous spells in the Irish League with Warrenpoint Town and Newry City. Photo: Glenavon FC
30. David Toure (Glenavon)
Versatile defender David Toure, who can play across the back line, was acquired from Stephen McDonnell's former club Shelbourne. Photo: Glenavon FC
31. James Donna (Glenavon)
Although this deal was announced in November, winger James Doona can officially play for new club Glenavon now that the window has opened. The 25-year-old joined from Longford Town and has also previously enjoyed spells at Shamrock Rovers, St Patrick’s Athletic and Cork City. Photo: Glenavon FC