| Luca Sbisa was added to Senators. |
| Jiri Tlusty was added to Senators. |
| Alex Lyon was added to Senators. |
| Richard Panik was added to Senators. |
| Ashton Sautner was added to Senators. |
| Patrik Elias was added to Senators. |
| TRADE : From Senators to Devils : Troy Brouwer. |
| Mathias Laferriere has been added to Senators. |
| Reto Berra was released. |
| Ben Youds was added to Senators. |
| Kyle Medvec was released. |
| Senators are the Playoffs Champions for year 2015! |
| Derek Meech was released. |
| Alexander Killorn was added to Senators. |
| Senators paid 0 € to release Mike Vecchione. |
| Senators paid 0 € to release Kevin Westgarth. |
| Petr Placek was released. |
| Nicolas Blanchard was released. |
| Evgeny Kuznetsov was added to Senators. |
| Mike Vecchione was added to Senators. |
