Castleford
Ins:
Outs: Jake Webster, James Green (Bradford Bulls), Gadwin Springer (Toronto Wolfpack), QLT (Halifax), Brandon Douglas (Doncaster), Kieran Gill (Newcastle Thunder, loan)
Catalans
Ins: Sam Tomkins (Wigan Warriors), Matt Whitley (Widnes), Matty Smith (St Helens)
Outs: Iain Thornley, Josh Drinkwater (Released), Paul Aiton (Retired)
Huddersfield
Ins: Akuila Uate (Manly Sea Eagles), Matt Frawley (Canterbury Bulldogs), Scott Grix (Wakefield Trinity), Reiss Butterworth (Bradford Bulls), Tom Holmes (Featherstone Rovers)
Outs: Jake Mamo (Warrington Wolves), Danny Brough (Wakefield Trinity), Nathan Mason (London Broncos), Shannon Wakeman (Released), Ryan Hinchcliffe (Retired), Olly Russell (Leigh – loan), Sam Wood (Batley – loan)
Hull FC
Ins: Matty Dawson-Jones (Leigh Centurions), Jordan Thompson (Leeds Rhinos), Danny Langtree (Oldham), Lewis Bienek (London Broncos), Levy Nzoungou (Salford Red Devils), Andrew Bulman (Rugby union)
Outs: Jordan Abdull (London Broncos) Andrew Bulman (Whitehaven)
Hull KR
Ins: Kane Linnett (North Queensland Cowboys), Mitch Garbutt (Leeds Rhinos), Jimmy Keinhorst (Leeds Rhinos), Weller Hauraki (Widnes Vikings), Ryan Lannon (Salford Red Devils), Josh Drinkwater (Catalans Dragons)
Outs: Maurice Blair, Justin Carney, Todd Carney, Andrew Heffernan, Chris Clarkson, Brad Clavering, Kieren Moss, Jordan Walne (Released) Liam Salter, Matty Marsh (York City Knights), James Donaldson (Leeds Rhinos) Ben Kavanagh (Halifax), Joe Cator (Leigh Centurions), Danny Tickle (Workington).
Leeds
Ins: Tui Lolohea (Wests Tigers), Callum McLelland (Scotland RU), Trent Merrin (Penrith Panthers), Konrad Hurrell (Gold Coast Titans), Dom Crosby (Warrington Wolves), James Donaldson (Hull KR)
Outs: Ryan Hall (Sydney Roosters), Joel Moon (Released), Brett Delaney (Featherstone Rovers), Jimmy Keinhorst, Mitch Garbutt (Hull KR), Jordan Thompson (Hull FC)
London
Ins: Jordan Abdull (Hull FC), Greg Richards (Leigh Centurions), Nathan Mason (Huddersfield Giants), Ryan Morgan (St Helens – loan) Matty Fozard (Sheffield Eagles), Morgan Smith (Warrington Wolves), Luke Yates (Newcastle Knights).
Outs: Ben Evans (Toulouse Olympique), Lewis Bienek (Hull FC), Jarrod Sammut (Wigan Warriors), Tom Spencer (Leigh Centurions)
Salford
Ins: Gil Dudson (Widnes Vikings), Jansin Turgut (Hull FC), Adam Lawton (unattached), Ken Sio (Newcastle Knights), Adam Walker (Free agent)
Outs: Kriss Brining, Jack Littlejohn (Released), Ryan Lannon (Hull KR), Lama Tasi (Warrington), Craig Kopczak (Wakefield Trinity)
Saints
Ins: Joe Batchelor (York City Knights), Kevin Naiqama (Wests Tigers), Joseph Paulo (Cronulla Sharks), Lachlan Coote (North Queensland Cowboys)
Outs: Jon Wilkin (Toronto Wolfpack), Matty Smith (Catalans Dragons), Ben Barba (North Queensland Cowboys), Ryan Morgan (London Broncos – loan).
Wakefield
Ins: Danny Brough (Huddersfield Giants), Craig Kopczak (Salford Red Devils), George King (Warrington Wolves), Ben Reynolds (Leigh Centurions)
Outs: Liam Finn (Newcastle Thunder), Scott Grix (Huddersfield Giants)
Warrington
Ins: Blake Austin (Canberra Raiders), Jason Clark (South Sydney Rabbitohs), Matt Davis (London Broncos), Jake Mamo (Huddersfield Giants), Danny Walker (Widnes Vikings), Lama Tasi (Salford Red Devils)
Outs: Tyrone Roberts (Gold Coast Titans), Dom Crosby (Leeds Rhinos), George King (Wakefield Trinity), Bodene Thompson (Toronto Wolfpack) Mitch Brown, Taylor Prell, Ben Pomeroy (Released)
Wigan
Ins: Joe Bullock (Barrow Raiders), Zak Hardaker (unattached), Jarrod Sammut (London Broncos)
Outs: John Bateman (Canberra Raiders), Ryan Sutton (Canberra Raiders), Sam Tomkins (Catalans Dragons), Josh Woods (Leigh – loan)