| Michael Houser was added to Stars. |
| Michael Houser signed with Stars for 700 000 $ for 1 year(s). |
| 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 Panthers to Stars : Dmitry Kulikov (71)- Patrik Laine (69)- Y:26-RND:1-BOS- Y:27-RND:2-FLO- Y:27-RND:3-FLO. |
| TRADE : From Stars to Panthers : Pavel Zacha (77)- Wyatt Kaiser (69). |
| TRADE : From Senators to Stars : 250 000 $ (Money). |
| TRADE : From Stars to Senators : Adam Erne (60). |
| TRADE : From Penguins to Stars : Keegan Kolesar (68)- Y:26-RND:4-PIT. |
| TRADE : From Stars to Penguins : Tyler Myers (74). |
| TRADE : From Sabres to Stars : Nick Deslauriers (57)- Y:27-RND:2-BUF. |
| TRADE : From Stars to Sabres : Alexander Wennberg (73). |
| TRADE : From Capitals to Stars : Josh Doan (68)- Chris Kreider (75)- Y:27-RND:1-WSH- Y:26-RND:3-VAN. |
| TRADE : From Stars to Capitals : Connor Brown (70)- Sam Reinhart (84). |
| General Manager Change : Stars fired general manager Olivier Loranger |
| General Manager Change : Stars hired general manager Mathieu Philippe |
| TRADE : From Stars to GoldenKnights : Philippe Myers (62). |
| TRADE : From GoldenKnights to Stars : 250 000 $ (Money). |
| TRADE : From Bruins to Stars : Ethan Langenegger (50)- Vyacheslav Buteyets (51). |
| TRADE : From Stars to Bruins : Y:26-RND:7-DAL. |
