| | D | Contract extended (The New Jersey Devils signed D Kurtis MacDermid to a three-year extension.) |
| | LW | Re-Signed (The New Jersey Devils re-signed F Samuel Laberge to a one-year, two-way contract.) |
| | LW | Re-Signed (The New Jersey Devils re-signed F Brian Halonen to a two-year, two-way contract.) |
| | RW | Re-Signed (The New Jersey Devils re-signed F Nathan Legare to a one-year, two-way contract.) |
| | G | Signed (The New Jersey Devils signed G Jakub Malek to a two-year, entry-level contract.) |
| | C | Re-Signed (The New Jersey Devils re-signed F Max Willman to a one-year, two-way contract.) |
| | D | Signed (The New Jersey Devils signed D Seamus Casey to a three-year, entry-level contract.) |
| | C | Signed (The New Jersey Devils signed F Ryan Schmelzer to a two-way deal.) |
| | C | Signed (The New Jersey Devils signed F Shane Bowers to a two-year, two-way contract. ) |
| | C | Sent to minors (The New Jersey Devils sent F Shane Bowers to the minors.) |
| | RW | Sent to minors (The New Jersey Devils sent F Graeme Clarke to the minors.) |
| | RW | Called up from minors (The New Jersey Devils recalled F Graeme Clarke from the minors.) |
| | G | Sent to minors (The New Jersey Devils sent G Akira Schmid to the minors.) |
| | LW | Sent to minors (The New Jersey Devils sent F Brian Halonen to the minors.) |
| | G | Called up from minors (The New Jersey Devils recalled G Akira Schmid from the minors.) |
| | C | Called up from minors (The New Jersey Devils recalled F Shane Bowers from the minors.) |
| | C | Called up from minors (The New Jersey Devils recalled F Shane Bowers from the minors.) |
| | C | Sent to minors (The New Jersey Devils sent F Max Willman to the minors.) |
| | | Sent to minors (The New Jersey Devils assigned F Dylan Wendt to the minors.) |
| | D | Sent to minors (The New Jersey Devils assigned D Santeri Hatakka to the minors.) |
| | G | Sent to minors (The New Jersey Devils assigned G Isaac Poulter to the minors.) |
| | LW | Called up from minors (The New Jersey Devils recalled F Brian Halonen from the minors.) |
| | D | Sent to minors (The New Jersey Devils assigned D Tyler Wotherspoon to the minors.) |
| | G | Called up from minors (The New Jersey Devils recalled G Isaac Poulter from the minors.) |
| | C | Called up from minors (The New Jersey Devils recalled F Max Willman from the minors.) |
| | D | Called up from minors (The New Jersey Devils recalled D Santeri Hatakka from the minors.) |
| | D | Called up from minors (The New Jersey Devils recalled D Tyler Wotherspoon from the minors.) |
| | G | Sent to minors (The New Jersey Devils sent G Nico Daws to the minors.) |
| | D | Sent to minors (The New Jersey Devils reassigned D Tyler Wotherspoon to the minors.) |
| | C | Sent to minors (The New Jersey Devils reassigned F Max Willman to the minors.) |
| | D | Sent to minors (The New Jersey Devils reassigned D Santeri Hatakka to the minors.) |
| | C | Called up from minors (The New Jersey Devils recalled F Max Willman from the minors.) |
| | D | Called up from minors (The New Jersey Devils recalled D Tyler Wotherspoon from the minors.) |
| | D | Called up from minors (The New Jersey Devils recalled D Santeri Hatakka from the minors.) |
| | LW | Called up from minors (The New Jersey Devils recalled F Nolan Foote from his conditioning loan with the minors.) |
| | G | Traded (The San Jose Sharks traded G Kaapo Kahkoken to the New Jersey Devils.) From |
| | D | Traded (The New Jersey Devils traded D Colin Miller to the Winnipeg Jets.) To |
| | G | Sent to minors (The New Jersey Devils assigned G Akira Schmid to the minors.) |
| | G | Traded (The New Jersey Devils traded G Vitek Vanecek to the San Jose Sharks.) To |
| | G | Traded (The Montreal Canadiens traded G Jake Allen to the New Jersey Devils.) From |
| | RW | Traded (The New Jersey Devils traded F Tyler Toffoli to the Winnipeg Jets.) To |
| | D | Signed (The New Jersey Devils signed D Mikael Diotte to an entry level contract.) |
| | LW | Sent to minors (The New Jersey Devils assigned F Brian Halonen to the minors.) |
| | C | Traded (The New Jersey Devils traded the signing rights of F Zakhar Bardakov to the Colorado Avalanche.) To |
| | D | Traded (The Colorado Avalanche traded D Kurtis MacDermid to the New Jersey Devils.) From |
| | G | Sent to minors (The New Jersey Devils assigned G Isaac Poulter to the minors.) |
| | G | Called up from minors (The New Jersey Devils recalled G Akira Schmid from the minors.) |
| | RW | Placed on Injured Reserve (The New Jersey Devils placed F Nathan Bastian on Injured Reserve.) |
| | LW | Called up from minors (The New Jersey Devils recalled F Brian Halonen from the minors.) |
| | G | Sent to minors (The New Jersey Devils assigned G Akira Schmid to the minors.) |
| | G | Called up from minors (Signed) |
| | G | Called up from minors (Signed) |
| | D | Activated (The New Jersey Devils activated D Jonas Siegenthaler.) |
| | G | Placed on Injured Reserve (The New Jersey Devils placed G Vitek Vanecek on injured reserve.) |
| | D | Sent to minors (The New Jersey Devils assigned D Santeri Hatakka to the minors.) |
| | D | Activated (The New Jersey Devils activated D Brendan Smith off Injured Reserve.) |
| | G | Called up from minors (The New Jersey Devils recalled G Akira Schmid from the minors.) |
| | C | Waived (The New Jersey Devils waived F Max Willman.) |
| | C | Activated (The New Jersey Devils activated F Jack Hughes.) |
| | LW | Activated (The New Jersey Devils activated F Tomas Nosek.) |
| | D | Called up from minors (The New Jersey Devils recalled D Santeri Hatakka from the minors.) |
| | D | Sent to minors (The New Jersey Devils assigned D Santeri Hatakka to the minors.) |
| | C | Sent to minors (The New Jersey Devils assigned F Justin Dowling to the minors.) |
| | D | Sent to minors (The New Jersey Devils assigned D Daniil Misyul to the minors.) |
| | C | Granted Leave of Absence (The New Jersey Devils added F Michael McLeod to the non-roster list.) |
| | D | Granted Leave of Absence (The New Jersey Devils placed D Cal Foote on the non-roster list.) |
| | C | Called up from minors (The New Jersey Devils recalled F Justin Dowling.) |
| | D | Claimed (The New Jersey Devils claimed D Nick DeSimone.) |
| | D | Called up from minors (The New Jersey Devils recalled D Daniil Misyul.) |
| | C | Placed on Injured Reserve (The New Jersey Devils placed F Jack Hughes on injured reserve.) |
| | D | Granted Leave of Absence (D Cal Foote was granted a leave of absence from the team.) |
| | C | Granted Leave of Absence (F Michael McLeod was granted a leave of absence from the team.) |
| | D | Called up from minors (The New Jersey Devils recalled D Santeri Hatakka.) |
| | D | Placed on Injured Reserve (The New Jersey Devils placed D Brendan Smith on injured reserve.) |
| | C | Sent to minors (The New Jersey Devils assigned F Shane Bowers to the minors.) |
| | RW | Activated (The New Jersey Devils activated F Timo Meier.) |
| | D | Called up from minors (The New Jersey Devils recalled D Cal Foote.) |
| | C | Called up from minors (The New Jersey Devils recalled F Max Willman from the minors.) |
| | C | Called up from minors (The New Jersey Devils recalled F Shane Bowers.) |
| | D | Placed on Injured Reserve (The New Jersey Devils placed D Jonas Siegenthaler on injured reserve.) |
| | C | Sent to minors (The New Jersey Devils assigned F Max Willman to the minors.) |
| | RW | Sent to minors (The New Jersey Devils assigned F Graeme Clarke to the minors.) |
| | C | Called up from minors (The New Jersey Devils recalled F Max Willman from the minors.) |
| | RW | Placed on Injured Reserve (The New Jersey Devils placed F Timo Meier on injured reserve.) |
| | C | Called up from minors (The New Jersey Devils recalled F Max Willman from the minors.) |
| | RW | Called up from minors (The New Jersey Devils recalled F Graeme Clarke.) |
| | LW | Activated (The New Jersey Devils activated F Brian Halonen from the Injured Reserve.) |
| | LW | Sent to minors (The New Jersey Devils sent F Brian Halonen to the minors.) |
| | G | Sent to minors (The New Jersey Devils assigned G Akira Schmid to the minors.) |
| | G | Called up from minors (The New Jersey Devils recalled G Nico Daws.) |
| | G | Sent to minors (The New Jersey Devils assigned G Nico Daws to the minors.) |
| | G | Called up from minors (The New Jersey Devils recalled G Nico Daws from the minors.) |
| | G | Sent to minors (The New Jersey Devils activated G Nico Daws from Injured Reserve and sent him to the minors.) |
| | D | Suspension Over (D Brendan Smith was reinstated from suspension.) |
| | D | Suspended (The National Hockey League suspended Brendan Smith.) |
| | D | Called up from minors (The New Jersey Devils recalled D Simon Nemec from the minors.) |
| | C | Sent to minors (The New Jersey Devils assigned F Max Willman to the minors.) |
| | D | Placed on Injured Reserve (The New Jersey Devils placed D Dougie Hamilton on Injured Reserve.) |
| | LW | Placed on Injured Reserve (The New Jersey Devils placed F Tomas Nosek on Injured Reserve.) |
| | C | Placed on Injured Reserve (The New Jersey Devils placed F Nico Hischier on injured reserve.) |
| | D | Activated (The New Jersey Devils activated D Colin Miller from injured reserve.) |
| | D | Sent to minors (The New Jersey Devils sent D Cal Foote to the minors.) |
| | LW | Activated (The New Jersey Devils activated F Tomas Nosek from injured reserve.) |
| | C | Called up from minors (The New Jersey Devils recalled F Max Willman from the minors.) |
| | C | Sent to minors (The New Jersey Devils assigned F Justin Dowling to the minors.) |
| | C | Called up from minors (The New Jersey Devils recalled F Justin Dowling.) |
| | D | Placed on Injured Reserve (The New Jersey Devils placed D Colin Miller on injured reserve.) |
| | LW | Placed on Injured Reserve (The New Jersey Devils placed F Tomas Nosek on injured reserve.) |
| | D | Called up from minors (The New Jersey Devils recalled D Cal Foote.) |
| | G | Sent to minors (The New Jersey Devils waived G Keith Kinkaid.) |
| | G | Placed on Injured Reserve (The New Jersey Devils placed G Keith Kinkaid on injured reserve. ) |
| | G | Sent to minors (The New Jersey Devils assigned G Jeremy Brodeur to the minors. ) |
| | G | Placed on Injured Reserve (The New Jersey Devils placed G Nico Daws on injured reseve. ) |
| | LW | Placed on Injured Reserve (The New Jersey Devils placed F Brian Halonen on injured reserve. ) |
| | LW | Placed on Injured Reserve (The New Jersey devils placed F Nolan Foote on injured reserve. ) |
| | D | Sent to minors (The New Jersey Devils assigned D Simon Nemec to the minors. ) |
| | G | Sent to minors (The New Jersey Devils assigned G Isaac Poulter to the minors.) |
| | C | Sent to minors (The New Jersey Devils assigned F Justin Dowling to the minors.) |
| | D | Sent to minors (The New Jersey Devils assigned D Santeri Hatakka to the minors.) |
| | C | Sent to minors (The New Jersey Devils assigned F Max Willman to the minors.) |
| | C | Sent to minors (The New Jersey Devils assigned F Shane Bowers to the minors.) |
| | RW | Sent to minors (The New Jersey Devils assigned F Tyce Thompson to the minors.) |
| | D | Sent to minors (The New Jersey Devils assigned D Cal Foote to the minors) |
| | G | Sent to minors (The New Jersey Devils assigned G Erik Kallgre to the minors.) |
| | RW | Sent to minors (The New Jersey Devils assigned F Chase Stillman to the minors.) |
| | RW | Sent to minors (The New Jersey Devils assigned F Graeme Clarke to the minors.) |
| | D | Sent to minors (The New Jersey Devils assigned D Daniil Misyul to the minors.) |
| | C | Waived (The New Jersey Devils waived F Kyle Criscuolo.) |
| | D | Sent to minors (The New Jersey Devils assigned D Michael Vukojevic to the minors.) |
| | C | Sent to minors (The New Jersey Devils assigned F Xavier Parent to the minors.) |
| | D | Sent to minors (The New Jersey Devils assigned D Will MacKinnon to the minors.) |
| | G | Sent to minors (The New Jersey Devils assigned G Tyler Brennan to the minors.) |
| | C | Sent to minors (The New Jersey Devils assigned F T.J. Friedmann to the minors.) |
| | C | Sent to minors (The New Jersey Devils assigned F Joe Gambardella to the minors.) |
| | C | Sent to minors (The New Jersey Devils assigned F Filip Engaras to the minors.) |
| | D | Sent to minors (The New Jersey Devils assigned D Topias Vilen to the minors.) |
| | C | Sent to minors (The New Jersey Devils assigned F Ryan Schmelzer to the minors.) |
| | LW | Sent to minors (The New Jersey Devils assigned F Timur Ibragimov to the minors.) |
| | RW | Sent to minors (The New Jersey Devils assigned F Josh Filmon to the minors.) |
| | D | Waived (The New Jersey Devils waived D Tyler Wotherspoon.) |
| | D | Sent to minors (The New Jersey Devils assigned D Colin Felix to the minors.) |
| | D | Sent to minors (The New Jersey Devils assigned D Robbie Russo to the minors.) |
| | LW | Sent to minors (The New Jersey Devils assigned F Cam Brown to the minors.) |
| | RW | Sent to minors (The New Jersey Devils assigned F Cam Squires to the minors.) |
| | C | Called up from minors (The New Jersey Devils recalled F Joe Gambardella from the minors.) |
| | RW | Sent to minors (The New Jersey Devils assigned F Lenni Hameenaho to the minors.) |
| | D | Sent to minors (The New Jersey Devils assigned D Chase Cheslock to the minors.) |
| | D | Called up from minors (The New Jersey Devils recalled D Colin Felix from the minors.) |
| | G | Called up from minors (The New Jersey Devils recalled G Tyler Brennan from the minors.) |
| | C | Called up from minors (The New Jersey Devils recalled F Filip Engaras from the minors.) |
| | RW | Called up from minors (The New Jersey Devils recalled F Chase Stillman from the minors.) |
| | D | Sent to minors (The New Jersey Devils assigned D Daniil Karpovich to the minors.) |
| | G | Called up from minors (The New Jersey Devils recalled G Jeremy Brodeur from the minors.) |
| | C | Called up from minors (The New Jersey Devils recalled F Xavier Parent from the minors.) |
| | D | Called up from minors (The New Jersey Devils recalled D Will MacKinnon from the minors.) |
| | D | Called up from minors (The New Jersey Devils recalled D Tyler Wotherspoon from the minors.) |
| | RW | Called up from minors (The New Jersey Devils recalled F Josh Filmon from the minors.) |
| | C | Signed (The New Jersey Devils signed F T.J. Friedmann.) |
| | D | Called up from minors (The New Jersey Devils recalled D Michael Vukojevic from the minors.) |
| | G | Called up from minors (The New Jersey Devils recalled G Isaac Poulter from the minors.) |
| | C | Called up from minors (The New Jersey Devils recalled F Ryan Schmelzer from the minors.) |
| | G | Signed (The New Jersey Devils signed G Keith Kinkaid.) |
| | C | Signed (The New Jersey Devils signed F Max Willman.) |
| | D | Signed (The New Jersey Devils signed D Cal Foote.) |
| | LW | Signed (The New Jersey Devils signed F Tomas Nosek.) |
| | C | Signed (The New Jersey Devils signed F Chris Tierney to a standard contract.) |
| | LW | Signed (The New Jersey Devils signed F Timur Ibragimov.) |
| | C | Signed (The New Jersey Devils signed F Kyle Criscuolo.) |
| | C | Signed (The New Jersey Devils signed F Justin Dowling.) |
| | G | Signed (The New Jersey Devils signed G Erik Kallgren.) |
| | D | Traded (The Dallas Stars traded D Colin Miller to the New Jersey Devils.) From |
| | D | Signed (The New Jersey Devils signed D Robbie Russo.) |
| | D | Signed (The New Jersey Devils signed D Daniil Misyul.) |
| | LW | Became Unrestricted Free Agent (F Tomas Tatar elected free agency.) |
| | D | Became Unrestricted Free Agent (D Ryan Graves elected free agency.) |
| | C | Contract Expired (Boqvist wasn't given a qualifying offer by the New Jersey Devils on Friday and will become an unrestricted free agent, Stephen Whyno of the Associated Press reports.) |
| | D | Drafted (The New Jersey Devils drafted D Chase Cheslock.) |
| | G | Became Unrestricted Free Agent (G Jonathan Bernier elected free agency.) |
| | LW | Became Unrestricted Free Agent (F Miles Wood elected free agency.) |
| | RW | Drafted (The New Jersey Devils drafted RW Lenni Hameenaho.) |
| | LW | Drafted (The New Jersey Devils drafted F Cole Brown.) |
| | D | Drafted (The New Jersey Devils drafted D Daniil Karpovich.) |
| | RW | Drafted (The New Jersey Devils drafted F Cam Squires.) |
| | RW | Traded (The Calgary Flames traded F Tyler Toffoli to the New Jersey Devils.) From |
| | C | Traded (The New Jersey Devils traded F Yegor Sharangovich to the Calgary Flames.) To |
| | G | Traded (The New Jersey Devils traded G Mackenzie Blackwood to the San Jose Sharks.) To |
| | C | Traded (The Boston Bruins traded F Shane Bowers to the New Jersey Devils.) From |
| | D | Traded (The New Jersey Devils traded D Reilly Walsh to the Boston Bruins.) To |
| | LW | Re-Signed (The New Jersey Devils re-signed F Erik Haula.) |