| Patrik Elias was added to Lightning. |
| Richard Panik was added to Lightning. |
| Andrew MacDonald was added to Lightning. |
| TRADE : From Islanders to Lightning : Andrew MacDonald. |
| Noah Dobson has been added to Lightning. |
| Jack Hillen was released. |
| Lightning paid 0 € to release Mathias Niederberger. |
| Jarret Stoll was added to Lightning. |
| Lightning paid 0 € to release Deryk Engelland. |
| Maxime Fortier was added to Lightning. |
| Lightning paid 0 € to release Chris Thorburn. |
| Jaroslav Janus was released. |
| Lightning paid 0 € to release Denis Hollenstein. |
| Noah Dobson has been deleted from Lightning. |
| Pavel Zacha was added to Lightning. |
| Mathias Niederberger was released. |
| Kyle Clifford was added to Lightning. |
| Michal Rozsival was added to Lightning. |
| Deryk Engelland was released. |
| Lightning paid 0 € to release Justin Hickman. |
