| TRADE : From Islanders to Lightning : Andrew MacDonald. |
| Jamie McGinn was added to Islanders. |
| TRADE : From Islanders to Avalanche : Paul Stastny. |
| Sound Tigers was eliminated at round 3 of year 2017. |
| Paul Martin was added to Islanders. |
| Andrei Makarov was released. |
| Islanders paid 0 € to release Maxime Clermont. |
| Islanders paid 1.105.000 € to release Fredrik Handemark. |
| Eric Schierhorn was added to Islanders. |
| Islanders paid 0 € to release Dominik Kahun. |
| Jacob Pivonka has been added to Islanders. |
| Islanders paid 481.118 € to release Chris Calnan. |
| Alex Pietrangelo was added to Islanders. |
| TRADE : From Devils to Islanders : Austin Watson. |
| Jack Skille was added to Islanders. |
| Islanders paid 0 € to release Korbinian Holzer. |
| Maxime Clermont was released. |
| Fredrik Handemark was released. |
| Yaroslav Dyblenko was added to Islanders. |
| Dominik Kahun was released. |
