| TRADE : From Islanders to Lightning : Andrew MacDonald. |
| Patrik Elias was added to Lightning. |
| Richard Panik was added to Lightning. |
| Andrew MacDonald was added to Lightning. |
| Lightning paid 0 € to release Dwight King. |
| Lightning paid 0 € to release Patrick Bordeleau. |
| Cam Janssen was released. |
| 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. |
| Dwight King was released. |
| TRADE : From Lightning to Golden Knights : Ville Pokka. |
| Patrick Bordeleau was released. |
| Lightning paid 0 € to release Casey Wellman. |
| Rattlesnakes didn\'t make playoff for year 2017. |
| Lightning paid 0 € to release Vincent Lecavalier. |
| Michael Rasmussen was added to Lightning. |
