| | 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.) |
| | D | Traded (The New Jersey Devils traded D Damon Severson to the Columbus Blue Jackets.) To |
| | D | Called up from minors (The New Jersey Devils recalled D Simon Nemec.) |
| | RW | Called up from minors (The New Jersey Devils recalled F Alexander Holtz.) |
| | RW | Called up from minors (The New Jersey Devils recalled F Graeme Clarke.) |
| | G | Called up from minors (The New Jersey Devils recalled G Nico Daws.) |
| | D | Called up from minors (The New Jersey Devils recalled D Topias Vilen.) |
| | LW | Called up from minors (The New Jersey Devils recalled F Nolan Foote.) |
| | RW | Called up from minors (The New Jersey Devils recalled F Tyce Thompson.) |
| | LW | Called up from minors (The New Jersey Devils recalled F Brian Halonen.) |
| | G | Called up from minors (The New Jersey Devils recalled G Akira Schmid.) |
| | D | Signed (The New Jersey Devils signed D Luke Hughes.) |
| | LW | Sent to minors (The New Jersey Devils sent F Nolan Foote to the minors.) |
| | G | Sent to minors (The New Jersey Devils assigned G Akira Schmid to the minors.) |
| | G | Activated (The New Jersey Devils activated G Mackenzie Blackwood from injured reserve.) |
| | LW | Called up from minors (The New Jersey Devils recalled F Nolan Foote.) |
| | C | Traded (The New Jersey Devils acquired F Jayce Hawryluk from Ottawa.) From |
| | D | Sent to minors (The New Jersey Devils assigned D Zachary Hayes to the minors.) |
| | D | Traded (The New Jersey Devils acquired D Zachary Hayes from Carolina.) From |
| | C | Sent to minors (The New Jersey Devils assigned F Jayce Hawkryluk to the minors.) |
| | LW | Traded (The Carolina Hurricanes acquired F Jack Dugan from New Jersey.) To |
| | RW | Sent to minors (The New Jersey Devils sent F Graeme Clarke to the minors.) |
| | D | Sent to minors (The New Jersey Devils sent D Kevin Bahl to the minors.) |
| | G | Sent to minors (The New Jersey Devils sent G Akira Schmid to the minors.) |
| | C | Traded (The Vancouver Canucks traded F Curtis Lazar to the New Jersey Devils.) From |
| | RW | Activated (The New Jersey Devils elevated F Graeme Clarke from the minors.) |