| Ashton Sautner was added to Senators. |
| TRADE : From Senators to Devils : Troy Brouwer. |
| Luca Sbisa was added to Senators. |
| Jiri Tlusty was added to Senators. |
| Richard Panik was added to Senators. |
| Patrik Elias was added to Senators. |
| Alex Lyon was added to Senators. |
| Dawson Barteaux has been added to Senators. |
| Senators are the Playoffs Champions for year 2015! |
| Josh Gorges was released. |
| Alexander Killorn was added to Senators. |
| TRADE : From Ducks to Senators : Troy Brouwer. |
| Petr Placek was released. |
| Justin Mercier was released. |
| TRADE : From Devils to Senators : Kari Lehtonen. |
| Kyle Medvec was released. |
| New Record for Team Most Shots Blocked (24) in 1 Game for Senators! |
| Mathias Laferriere has been added to Senators. |
| Senators paid 0 € to release Brad Richards. |
| Senators paid 0 € to release Derek Meech. |
