| 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). |
| TRADE : From Bruins to MapleLeafs : Tomas Nosek (63). |
| TRADE : From MapleLeafs to Bruins : Y:27-RND:5-TOR. |
| TRADE : From Bruins to Stars : Barrett Hayton (72)- Jacob Trouba (74)- Y:26-RND:1-CAR- Y:27-RND:2-BOS. |
| TRADE : From Stars to Bruins : Brenden Dillon (72)- Ryan Nugent-Hopkins (78). |
| TRADE : From Bruins to Senators : Y:26-RND:6-OTT. |
| TRADE : From Senators to Bruins : Boris Katchouk (60)- Jiri Patera (53)- Joe Snively (60)- Pavol Regenda (60)- William Lockwood (56). |
| TRADE : From Bruins to Capitals : Lucas Carlsson (65). |
| TRADE : From Capitals to Bruins : 250 000 $ (Money). |
| TRADE : From Bruins to Sharks : Thomas Harley (79)- Andrew Copp (72)- Jeremy Lauzon (67). |
| TRADE : From Sharks to Bruins : Alex Tuch (82)- Dante Fabbro (74)- Y:26-RND:1-NJ - Y:26-RND:6-SJ . |
| TRADE : From Bruins to Senators : Jimmy Vesey (61)- Dans Locmelis (55). |
| TRADE : From Senators to Bruins : Rasmus Ristolainen (70)- Noah Gregor (62)- Y:26-RND:6-OTT. |
