The Boston Bruins acquired Viktor Arvidsson from the Edmonton Oilers for a 2027 5th round pick
The Tampa Bay Lightning acquired a 2025 4th round pick (#108) from the Boston Bruins for a 2026 4th round pick
The Montreal Canadiens acquired a 2025 3rd round pick (#69) from the Boston Bruins for a 2025 3rd round pick (#79) and a 2025 4th round pick (#108)
The Boston Bruins acquired Victor Soderstrom from the Chicago Blackhawks for Ryan Mast and a 2025 7th round pick
The Toronto Maple Leafs acquired Brandon Carlo from the Boston Bruins for Fraser Minten, a 2026 1st round pick and a 2025 4th round pick
The Florida Panthers acquired Brad Marchand from the Boston Bruins for a conditional 2027 2nd round pick
The Boston Bruins acquired Henri Jokiharju from the Buffalo Sabres for a 2026 4th round pick
The Colorado Avalanche acquired Charlie Coyle and a 2026 5th round pick from the Boston Bruins for Casey Mittelstadt, William Zellers and a 2025 2nd round pick
The Minnesota Wild acquired Justin Brazeau from the Boston Bruins for Marat Khusnutdinov, Jakub Lauko, and a 2026 6th round pick
Studnicka was recalled from AHL Providence and will play Sunday against the San Jose Sharks.
Foligno (upper body) was moved to injured reserve Sunday, Fluto Shinzawa of The Athletic reports.
Vaakanainen (upper body) practiced with AHL Providence on Tuesday, Mark Divver of the New England Hockey Journal reports.
Lazar (upper body) is slated to start the season on IR.
Moore is listed on the Boston Bruins' initial roster ahead of the start of the 2021-22 season.
Studnicka isn't on the Boston Bruins' initial roster in advance of the start of the 2021-22 season, Jimmy Murphy of Boston Hockey Now reports.
Wagner was placed on waivers by Boston on Saturday, Sportsnet's Chris Johnston reports.
Moore was placed on waivers by the Boston Bruins on Saturday, Sportsnet's Chris Johnston reports.
Grosenick was waived by Boston on Thursday, Renaud Lavoie of TVA Sports reports.
Fogarty was waived by Boston on Wednesday, Sportsnet's Chris Johnston reports.
Lewington was waived by the Boston Bruins on Tuesday, Sportsnet's Chris Johnston reports.
Koppanen was placed on waivers by the Boston Bruins on Tuesday, Sportsnet's Chris Johnston reports.
Hughes was waived by Boston on Tuesday, Sportsnet's Chris Johnston reports.
Senyshyn was waived by the Boston Bruins on Sunday, per CBS Sports.
Booth was placed on waivers by Boston on Thursday, Renaud Lavoie of TVA Sports reports.
Vladar has been called up from AHL Providence and is dressing as the backup Tuesday against the Washington Capitals, Tom Gulitti of NHL.com reports.
Per NHL.com, Studnicka has been added to Boston's active roster and will play in Tuesday's season finale versus Washington.
Vaakanainen has been added to Boston's roster and will play in Tuesday's regular-season finale against the Washington Capitals.
Ahcan has been added to Boston's roster and will play in Tuesday's regular-season finale against the Washington Capitals.
Senyshyn will be promoted to Boston's active roster and draw into the lineup for Tuesday's regular-season finale versus Washington, NHL.com reports.
Steen has been added to Boston's roster and will play in Tuesday's regular-season finale against the Washington Capitals.
McKegg has been added to Boston's roster and will play in Tuesday's regular-season finale against the Washington Capitals.
Hughes will be promoted to Boston's active roster and enter the lineup for Tuesday's regular-season finale versus Washington.
Kase (concussion) will be activated for Monday night's game against the New York Islanders, Eric Russo of the Boston Bruins' official site reports.
Swayman will start Thursday night's game against the New York Rangers.
Carlo (oblique) will be activated from IR and return to action Tuesday night against the New Jersey Devils, Joe Haggerty of BostonHockeyNow.com reports.
Ahcan has been returned to AHL Providence, Mark Divver of the New England Hockey Journal reports.
The Bruins reassigned Vaakanainen to AHL Providence on Wednesday, Mark Divver of the New England Hockey Journal reports.
Swayman was elevated to the active roster and will start Sunday's road game against the Pittsburgh Penguins.
Halak (not injury related) was activated from the non-roster list and served as backup to Jeremy Swayman in Thursday's 5-1 win over the Buffalo Sabres.
Ahcan has joined the Boston Bruins' taxi squad in advance of Tuesday's game against the Buffalo Sabres, Kevin Paul Dupont of the Boston Globe reports.
Vaakanainen was added to the taxi squad Tuesday, Mark Divver of the New England Hockey Journal reports.
Vladar is back with AHL Providence, Mark Divver of the New England Hockey Journal reports.
The Bruins have signed Lyle to an entry-level contract.
Halak cleared COVID-19 protocol and returned to the ice Sunday, Matt Porter of The Boston Globe reports.
Ahcan has been returned to AHL Providence, Mark Divver of the New England Hockey Journal reports.
Senyshyn has been returned to AHL Providence, Mark Divver of the New England Hockey Journal reports.
Vladar will be added to the Boston Bruins' roster in order to back up Jeremy Swayman in Friday night's game against the New York Islanders.
Vladar has been returned to AHL Providence, Joe Haggerty of BostonHockeyNow.com reports.
Lazar (lower body) was activated from injured reserve for Tuesday's game versus the Buffalo Sabres, Fluto Shinzawa of The Athletic reports.
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