| TRADE : From Bruins to Senators : Nick Cousins (62). |
| TRADE : From Senators to Bruins : 250 000 $ (Money). |
| TRADE : From Oilers to Bruins : Adam Lowry (76)- Y:27-RND:2-EDM- Y:26-RND:2-SJ - Y:27-RND:5-EDM. |
| TRADE : From Bruins to Oilers : Y:27-RND:1-BOS- Y:27-RND:4-BOS. |
| TRADE : From Bruins to Panthers : Chad Ruhwedel (62). |
| TRADE : From Panthers to Bruins : 250 000 $ (Money). |
| TRADE : From Bruins to Ducks : Tyson Jost (62)- Artyom Gonchar (P)- Y:26-RND:5-CAR. |
| TRADE : From Ducks to Bruins : Corey Perry (64). |
| Unknown Player is no longer captain for Bruins. |
| Alex Tuch has been selected as captain for Bruins. |
| TRADE : From Bruins to Ducks : Jayden Struble (66)- Samuel Hlavaj (58)- Y:26-RND:2-FLO. |
| TRADE : From Ducks to Bruins : Eetu Luostarinen (72). |
| TRADE : From Bruins to Hurricanes : Cole Caufield (77)- Mackie Samoskevich (67)- Y:26-RND:1-NJ . |
| TRADE : From Hurricanes to Bruins : Kent Johnson (71)- Mason McTavish (74)- Matthew Knies (75)- Y:26-RND:2-FLO. |
| TRADE : From Stars to Bruins : Tanner Jeannot (65). |
| TRADE : From Bruins to Stars : Alex Cotton (P)- Eriks Mateiko (P)- Y:26-RND:4-BOS- Y:26-RND:6-COL. |
| TRADE : From Panthers to Bruins : Chad Ruhwedel (62)- Jesperi Kotkaniemi (68)- Y:27-RND:6-FLO. |
| TRADE : From Bruins to Panthers : Brenden Dillon (72). |
| TRADE : From Senators to Bruins : Mackie Samoskevich (67)- Jacob Bernard-Docker (66)- Jake Bean (65)- Nick Cousins (62). |
| TRADE : From Bruins to Senators : Rasmus Ristolainen (70)- Pavol Regenda (60)- William Horcoff (P)- Tanner Howe (P)- Tristan Bertucci (P). |
