| Ashton Sautner was added to Senators. |
| TRADE : From Senators to Devils : Troy Brouwer. |
| Richard Panik was added to Senators. |
| Patrik Elias was added to Senators. |
| Luca Sbisa was added to Senators. |
| Jiri Tlusty was added to Senators. |
| Alex Lyon was added to Senators. |
| Raphael Diaz was added to Senators. |
| Maxim Sushko was added to Senators. |
| Josh Gorges was released. |
| TRADE : From Senators to Oilers : Tobias Enstrom. |
| Ruslan Iskhakov has been added to Senators. |
| TRADE : From Ducks to Senators : Troy Brouwer. |
| Justin Mercier was released. |
| TRADE : From Devils to Senators : Kari Lehtonen. |
| Senators paid 0 € to release Darroll Powe. |
| Mikko Vainonen was added to Senators. |
| Carsen Twarynski was added to Senators. |
| Senators paid 0 € to release Derek Meech. |
| Jason LaBarbera was added to Senators. |
