| | LW | Signed (The New York Islanders signed F Jesse Nurmi to an entry-level contract.) |
| | LW | Signed (The New York Islanders signed F Jesse Nurmi to an entry-level contract.) |
| | RW | Signed (The New York Islanders signed F Maxim Tsyplakov to a one-year, entry-level contract.) |
| | G | Signed (The New York Islanders signed G Marcus Hogberg to a two-year deal.) |
| | D | Called up from minors (The New York Islanders recalled D Dennis Cholowski from the minors.) |
| | D | Called up from minors (The New Jersey Devils recalled D Robin Salo from the minors.) |
| | C | Called up from minors (The New York Islanders recalled F Brian Pinho from the minors.) |
| | RW | Called up from minors (The New York Islanders recalled F Julien Gauthier from the minors.) |
| | C | Called up from minors (The New York Islanders recalled F Karson Kuhlman from the minors.) |
| | G | Called up from minors (The New York Islanders recalled G Jakub Skarek from the minors.) |
| | RW | Signed (The New York Islanders signed F Alex Jefferies.) |
| | G | Signed (The New York Islanders signed G Henrik Tikkanen.) |
| | LW | Called up from minors (The New York Islanders recalled F Ruslan Iskhakov from the minors.) |
| | D | Signed (The New York Islanders signed D Marshall Warren to a two-year, entry-level contract.) |
| | D | Activated (The New York Islanders activated D Robert Bortuzzo from long-term injured reserve.) |
| | D | Placed on Injured Reserve (The New York slanders ) |
| | RW | Activated (The New York Islanders activated F Hudson Fasching from Injured Reserve.) |
| | D | Called up from minors (The New York Islanders recalled D Samuel Bolduc from the minors.) |
| | RW | Sent to minors (The New York Islanders assigned F Hudson Fasching to the minors.) |
| | RW | Activated (The New York Islanders activated F Hudson Fasching.) |
| | D | Sent to minors (The New York Islanders sent D Samuel Bolduc to the minors.) |
| | C | Called up from minors (The New York Islanders recalled F Kyle MacLean from the minors.) |
| | RW | Placed on Injured Reserve (The New York Islanders placed F Hudson Fasching on the Long-Term Injured Reserve.) |
| | C | Activated (The New York Islanders activated F Casey Cizikas.) |
| | C | Sent to minors (The New York Islanders assigned F Kyle MacLean to the minors.) |
| | RW | Called up from minors (The New York Islanders recalled F Simon Holmstrom.) |
| | C | Called up from minors (The New York Islanders recalled F Kyle MacLean.) |
| | RW | Sent to minors (The New York Islanders assigned F Simon Holmstrom to the minors.) |
| | D | Activated (The New York Islanders activated D Ryan Pulock from injured reserve.) |
| | RW | Waived (The New York Islanders waived F Julien Gauthier.) |
| | C | Sent to minors (The New York Islanders assigned F Kyle MacLean to the minors.) |
| | G | Activated (The New York Islanders activated G Semyon Varlamov.) |
| | G | Sent to minors (The New York Islanders assigned G Kenneth Appleby to the minors.) |
| | C | Called up from minors (The New York Islanders recalled F Kyle MacLean from the minors.) |
| | C | Placed on Injured Reserve (The New York Islanders placed F Casey Cizikas on Injured Reserve.) |
| | G | Placed on Injured Reserve (The New York Islanders placed G Semyon Varlamov on injured reserve.) |
| | D | Activated (The New York Islanders activated D Adam Pelech.) |
| | G | Called up from minors (The New York Islanders recalled G Ken Appleby.) |
| | D | Placed on Injured Reserve (The New York Islanders placed D Robert Bortuzzo on injured reserve.) |
| | D | Activated (The New York Islanders activated D Scott Mayfield.) |
| | G | Sent to minors (The New York Islanders sent G Ken Appleby to the minors.) |
| | G | Called up from minors (The New York Islanders recalled G Ken Appleby.) |
| | D | Sent to minors (The New York Islanders sent D Grant Hutton to the minors.) |
| | LW | Activated (The New York Islanders activated F Matt Martin.) |
| | D | Called up from minors (The New York Islanders recalled D Grant Hutton from the minors.) |
| | D | Sent to minors (The New York Islanders assigned D Grant Hutton to the minors.) |
| | D | Activated (The New York Islanders activated D Sebastian Aho.) |
| | D | Called up from minors (The New York Islanders recalled D Grant Hutton.) |
| | LW | Placed on Injured Reserve (The New York Islanders placed F Matt Martin on injured reserve.) |
| | D | Placed on Injured Reserve (The New York Islanders placed D Scott Mayfield on Injured Reserve.) |
| | D | Sent to minors (The New York Islanders assigned D Grant Hutton to the minors.) |
| | D | Traded (The St. Louis Blues traded D Robert Bortuzzo to the New York Islanders.) From |
| | D | Placed on Injured Reserve (The New York Islanders placed D Ryan Pulock on the Injured Reserve.) |
| | D | Called up from minors (The New York Islanders recalled D Grant Hutton from the minors.) |
| | D | Sent to minors (The New York Islanders assigned D Grant Hutton to the minors.) |
| | LW | Activated (The New York Islanders activated F Matt Martin off Injured Reserve.) |
| | D | Called up from minors (The New York Islanders recalled D Grant Hutton froom the minors.) |
| | D | Placed on Injured Reserve (The New York Islanders placed D Sebastian Aho on injured reserve.) |
| | D | Sent to minors (The New York Islanders assigned D Grant Hutton to the minors.) |
| | D | Placed on Injured Reserve (The New York Islanders placed D Adam Pelech on Injured Reserve.) |
| | D | Called up from minors (The New York Islanders recalled D Grant Hutton from the minors.) |
| | D | Claimed (The New York Islanders claimed D Mike Reilly off waivers from the Florida Panthers.) From |
| | LW | Placed on Injured Reserve (The New York Islanders placed F Matt Martin on Injured Reserve.) |
| | D | Called up from minors (The New York Islanders recalled D Grant Hutton from the minors.) |
| | RW | Called up from minors (The New York Islanders recalled F Simon Holmstrom.) |
| | LW | Waived (The New York Islanders waived F Ross Johnston.) |
| | RW | Sent to minors (The New York Islanders assigned F Simon Holmstrom to the minors. ) |
| | LW | Called up from minors (The New York Islanders recall F Ross Johnston from the minors. ) |
| | C | Sent to minors (The New York Islanders assigned F Jackson Cates to the minors. ) |
| | LW | Sent to minors (The New York Islanders assign F Daylan Kuefler to the minors. ) |
| | LW | Waived (The New York Islanders waived F Ross Johnston.) |
| | C | Sent to minors (The New York Islanders assigned F Reece Newkirk to the minors.) |
| | C | Sent to minors (The New York Islanders assigned F Brian Pinho to the minors.) |
| | D | Sent to minors (The New York Islanders assigned D Paul LaDue to the minors.) |
| | D | Sent to minors (The New York Islanders assigned D Grant Hutton to the minors.) |
| | D | Sent to minors (The New York Islanders assigned D Dennis Cholowski to the minors.) |
| | C | Sent to minors (The New York Islanders assigned F Karson Kuhlman to the minors.) |
| | G | Sent to minors (The New York Islanders assigned G Jakub Skarek to the minors.) |
| | LW | Sent to minors (The New York Islanders assigned F Ruslan Iskhakov to the minors.) |
| | D | Sent to minors (The New York Islanders assigned D Travis Mitchell to the minors.) |
| | RW | Sent to minors (The New York Islanders assigned F Matthew Maggio to the minors.) |
| | LW | Sent to minors (The New York Islanders assigned F Otto Koivula to the minors.) |
| | RW | Sent to minors (The New York Islanders assigned F Eetu Liukas to the minors.) |
| | LW | Sent to minors (The New York Islanders assigned F Arnaud Durandeau to the minors.) |
| | G | Sent to minors (The New York Islanders assigned G Ken Appleby to the minors.) |
| | RW | Sent to minors (The New York Islanders assigned F William Dufour to the minors.) |
| | C | Sent to minors (The New York Islanders assigned F Kyle MacLean to the minors.) |
| | D | Sent to minors (The New York Islanders assigned D Calle Odelius to the minors.) |
| | D | Sent to minors (The New York Islanders assigned D Robin Salo to the minors.) |
| | D | Sent to minors (The New York Islanders assigned D Aidan Fulp to the minors.) |
| | C | Sent to minors (The New York Islanders assigned F Cole Bardreau to the minors. ) |
| | G | Sent to minors (The New York Islanders assigned G Brent Moran to the minors. ) |
| | LW | Released (The New York Islanders released F Dmytro Timashov) |
| | C | Sent to minors (The New York Islanders assigned F Tanner Fritz to the minors. ) |
| | D | Sent to minors (The New York Islanders sent D Seth Helgeson to the minors.) |
| | D | Sent to minors (The New York Islanders assigned D Trevor Cosgrove to the minors. ) |
| | G | Sent to minors (The New York Islanders assigned G Tristan Lennox to the minors. ) |
| | C | Sent to minors (The New York Islanders assigned F Justin Gill to the minors. ) |
| | C | Sent to minors (The New York Islanders assigned F Jacob Pivonka to the minors. ) |
| | D | Sent to minors (The New York Islanders assigned D Zsombor Garat to the minors. ) |
| | C | Sent to minors (The New York Islanders assigned F Jeff Kubiak to the minors.) |
| | D | Sent to minors (The New York Islanders assigned D Christian Krygier to the minors. ) |
| | G | Sent to minors (The New York Islanders assigned G Henrik Tikkanen to the minors. ) |
| | LW | Sent to minors (The New York Islanders assigned F Riley Piercey to the minors. ) |
| | LW | Sent to minors (The New York Islanders assigned F Blade Jenkins to the minors. ) |
| | RW | Sent to minors (The New York Islanders assigned F Ashton Calder to the minors. ) |
| | D | Sent to minors (The New York Islanders assigned D Artem Kulakov to the minors. ) |
| | LW | Sent to minors (The New York Islanders assigned F Samuel Asselin to the minors. ) |
| | D | Sent to minors (The New York Islanders assigned D Vincent Sevigny to the minors. ) |
| | C | Sent to minors (The New York Islanders assigned F Joseph Cipollone to the minors. ) |
| | D | Sent to minors (The New York Islanders sent D Isaiah George to the minors.) |
| | C | Called up from minors (The New York Islanders recalled F Reece Newkirk from the minors.) |
| | D | Called up from minors (The New York Islanders recalled D Travis Mitchell from the minors.) |
| | D | Called up from minors (The New York Islanders recalled D Trevor Cosgrove from the minors.) |
| | D | Called up from minors (The New York Islanders recalled D Aidan Fulp from the minors.) |
| | D | Called up from minors (The New York Islanders recalled D Grant Hutton from the minors.) |
| | D | Called up from minors (The New York Islanders recalled D Dennis Cholowski from the minors.) |
| | G | Called up from minors (The New York Islanders recalled G Ken Appleby from the minors.) |
| | D | Called up from minors (The New York Islanders recalled D Vincent Sevigny from the minors.) |
| | RW | Called up from minors (The New York Islanders recalled F Matthew Maggio from the minors.) |
| | D | Called up from minors (The New York Islanders recalled D Robin Salo from the minors.) |
| | D | Sent to minors (The New York Islanders assigned D Dennis Good Bogg to the minors.) |
| | LW | Called up from minors (The New York Islanders recalled F Riley Piercey from the minors.) |
| | LW | Called up from minors (The New York Islanders recalled F Arnaud Durandeau from the minors.) |
| | D | Called up from minors (The New York Islanders recalled D Paul LaDue from the minors.) |
| | C | Called up from minors (The New York Islanders recalled F Kyle MacLean from the minors.) |
| | C | Signed (The New York Islanders signed F Joseph Cipollone.) |
| | G | Called up from minors (The New York Islanders recalled G Tristan Lennox from the minors.) |
| | LW | Called up from minors (The New York Islanders recalled F Daylan Kuefler from the minors.) |
| | D | Called up from minors (The New York Islanders recalled D Zsombor Garat from the minors.) |
| | D | Called up from minors (The New York Islanders recalled F Artem Kulakov from the minors.) |
| | C | Called up from minors (The New York Islanders recalled F Tanner Fritz from the minors.) |
| | LW | Called up from minors (The New York Islanders recalled F Otto Koivula from the minors.) |
| | D | Called up from minors (The New York Islanders recalled D Seth Helgeson from the minors.) |
| | C | Called up from minors (The New York Islanders recalled F Jackson Cates from the minors.) |
| | RW | Called up from minors (The New York Islanders recalled F William Dufour from the minors.) |
| | G | Called up from minors (The New York Islanders recalled G Henrik Tikkanen from the minors.) |
| | C | Sent to minors (The New York Islanders assigned F Danny Nelson to the minors.) |
| | D | Called up from minors (The New York Islanders recalled D Christian Krygier from the minors.) |
| | LW | Called up from minors (The New York Islanders recalled F Samuel Asselin from the minors.) |
| | LW | Called up from minors (The New York Islanders recalled F Blade Jenkins from the minors.) |
| | G | Called up from minors (The New York Islanders recalled G Brent Moran from the minors.) |
| | C | Called up from minors (The New York Islanders recalled F Jacob Pivonka from the minors.) |
| | D | Called up from minors (The New York Islanders recalled D Calle Odelius from the minors.) |
| | LW | Sent to minors (The New York Islanders assigned F Jesse Nurmi to the minors.) |
| | C | Called up from minors (The New York Islanders recalled F Jeff Kubiak from the minors.) |
| | C | Called up from minors (The New York Islanders recalled F Cole Bardreau from the minors.) |
| | RW | Signed (The New York Islanders signed F Ashton Calder.) |
| | LW | Called up from minors (The New York Islanders recalled F Ruslan Iskhakov from the minors.) |
| | LW | Called up from minors (The New York Islanders recalled F Dmytro Timashov from the minors.) |
| | D | Sent to minors (The New York Islanders assigned D Zachary Schulz to the minors.) |
| | C | Called up from minors (The New York Islanders recalled F Justin Gill from the minors.) |
| | D | Signed (The New York Islanders signed D Isaiah George to an entry-level contract.) |
| | RW | Signed (The New York Islanders signed F Julien Gauthier.) |
| | C | Signed (The New York Islanders signed F Brian Pinho.) |
| | C | Signed (The New York Islanders signed F Karson Kuhlman.) |
| | D | Signed (The New York Islanders signed D Scott Mayfield. ) |
| | LW | Signed (The New York Islanders signed F Pierre Engvall. ) |
| | G | Signed (The New York Islanders signed G Semyon Varlamov. ) |
| | LW | Signed (The New York Islanders signed F Pierre Engvall. ) |
| | LW | Became Unrestricted Free Agent (F Pierre Engvall elected free agency.) |
| | G | Became Unrestricted Free Agent (G Semyon Varlamov elected free agency.) |
| | LW | Became Unrestricted Free Agent (F Zach Parise elected free agency.) |
| | D | Became Unrestricted Free Agent (D Scott Mayfield elected free agency.) |
| | D | Became Unrestricted Free Agent (D Parker Wotherspoon elected free agency.) |
| | D | Drafted (The New York Islanders drafted D Zachary Schulz.) |
| | LW | Drafted (The New York Islanders drafted F Jesse Nurmi.) |
| | RW | Traded (The New York Islanders traded F Josh Bailey to the New York Islanders.) To |
| | D | Drafted (The New York Islanders drafted D Dennis Good Bogg.) |
| | C | Drafted (The New York Islanders drafted C Danny Nelson.) |
| | C | Drafted (The New York Islanders drafted F Justin Gill.) |