| Andrew MacDonald was added to Lightning. |
| TRADE : From Islanders to Lightning : Andrew MacDonald. |
| Patrik Elias was added to Lightning. |
| Richard Panik was added to Lightning. |
| Johnny Boychuk was added to Lightning. |
| Lightning paid 0 € to release Bryce Salvador. |
| Austin Osmanski has been deleted from Lightning. |
| Lightning paid 0 € to release Michal Rozsival. |
| Lightning paid 0 € to release Cody McLeod. |
| Kristers Gudlevskis was released. |
| Reto Suri was released. |
| Lightning paid 0 € to release Cam Janssen. |
| Tyson Baillie was added to Lightning. |
| Ryan Kesler was added to Lightning. |
| Lightning didn\'t make playoff for year 2017. |
| Bryce Salvador was released. |
| Hugo Fagerblom has been deleted from Lightning. |
| Michal Rozsival was released. |
| Cody McLeod was released. |
| Lightning paid 0 € to release Dwight King. |
