| Senators didn't make playoff for year 25. |
| TRADE : From Bruins to Senators : Nick Cousins (62). |
| TRADE : From Senators to Bruins : 250 000 $ (Money). |
| TRADE : From Bruins to Senators : Nick Cousins (62). |
| TRADE : From Senators to Bruins : 250 000 $ (Money). |
| TRADE : From Flames to Senators : Jack St. Ivany (63). |
| TRADE : From Senators to Flames : 250 000 $ (Money). |
| TRADE : From Flames to Senators : Jack St. Ivany (63). |
| TRADE : From Senators to Flames : 250 000 $ (Money). |
| TRADE : From GoldenKnights to Senators : Michael Carcone (64). |
| TRADE : From Senators to GoldenKnights : 250 000 $ (Money). |
| TRADE : From GoldenKnights to Senators : Michael Carcone (64). |
| TRADE : From Senators to GoldenKnights : 250 000 $ (Money). |
| TRADE : From GoldenKnights to Senators : Samuel Honzek (56)- Sandis Vilmanis (55)- Carson Bjarnason (P)- Milton Gastrin (P)- Y:26-RND:4-LV . |
| TRADE : From Senators to GoldenKnights : Alex Iafallo (74)- Ryker Evans (71)- Warren Foegele (74). |
| TRADE : From GoldenKnights to Senators : Samuel Honzek (56)- Sandis Vilmanis (55)- Carson Bjarnason (P)- Milton Gastrin (P)- Y:26-RND:4-LV . |
| TRADE : From Senators to GoldenKnights : Alex Iafallo (74)- Ryker Evans (71)- Warren Foegele (74). |
| Trevor Lewis is no longer as assistant for B-Senators. |
| Alec Martinez has been selected as assistant for B-Senators. |
| Alec Martinez is no longer as assistant for B-Senators. |
