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
The Edmonton Oilers acquired Max Jones and Petr Hauser from the Boston Bruins for Max Wanner, a 2025 2nd round pick, and 2026 4th round pick as part of the Trent Frederic three-team trade with NJD
The New Jersey Devils acquired Trent Frederic from the Boston Bruins for Petr Hauser in a three team trade with EDM
The Minnesota Wild acquired Jakub Lauko and a 2024 4th round pick (#110) from the Boston Bruins for Vinni Lettieri and a 2024 4th round pick (#122)
The Ottawa Senators acquired Linus Ullmark from the Boston Bruins for Joonas Korpisalo, Mark Kastelic, and a 2024 1st round pick (#25)
Smith has entered the NHL's COVID-19 protocols.
Ahcan was reassigned to AHL Providence on Monday.
Blidh (upper body) was activated from injured reserve and will suit up Thursday against the Edmonton Oilers, Fluto Shinzawa of The Athletic reports.
Steen was reassigned to AHL Providence on Thursday, Mark Divver of the New England Hockey Journal reports.
Nosek (illness) won't travel for the Boston Bruins' upcoming three-game Canadian road trip. According to the NHL media site, the 29-year-old winger has been placed on non-roster injured reserve.
Steen was recalled by the Boston Bruins on Tuesday, Mark Divver of the New England Hockey Journal reports.
Moore was called up from the minors Monday, Mark Divver of the New England Hockey Journal reports.
Ahcan was elevated from AHL Providence on Monday, Mark Divver of the New England Hockey Journal reports.
Ahcan was reassigned to AHL Providence on Sunday, Mark Divver of the New England Hockey Journal reports.
Steen was reassigned to AHL Providence on Sunday, Mark Divver of the New England Hockey Journal reports.
Ahcan was recalled by the Boston Bruins on Saturday.
Steen was recalled by the Boston Bruins on Saturday.
Frederic (upper body) was activated from injured reserve and will suit up Sunday against the Vancouver Canucks, Fluto Shinzawa of The Athletic reports.
Steen was reassigned to AHL Providence on Monday, per CBS.
Steen was promoted from AHL Providence on Friday.
Blidh (upper body) will be activated off injured reserve and return to the lineup for Thursday's game versus Edmonton, Steve Conroy of the Boston Herald reports.
Foligno (upper body) will be activated off injured reserve and return to the lineup for Thursday's game against the Edmonton Oilers, Matt Porter of The Boston Globe reports.
Studnicka was reassigned to AHL Providence on Wednesday, Mark Divver of the New England Hockey Journal reports.
Studnicka was elevated to the NHL roster Tuesday, Mark Divver of the New England Hockey Journal reports.
Studnicka was reassigned to AHL Providence on Sunday, Mark Divver of the New England Hockey Journal reports.
Steen was reassigned to AHL Providence on Saturday, Mark Divver of the New England Hockey Journal reports.
Lazar (upper body) will return to action Wednesday night against the Florida Panthers, Joe Haggerty of BostonHockeyNow.com reports.
Studnicka was recalled by the Boston Bruins on Tuesday, Mark Divver of the New England Hockey Journal reports.
Steen was recalled by the Boston Bruins on Tuesday, Mark Divver of the New England Hockey Journal reports.
Studnicka was demoted to AHL Providence on Monday, according to CBS Sports.
Steen was reassigned to AHL Providence on Monday, per CBS Sports.
Moore was reassigned to AHL Providence on Sunday.
Steen was called up from AHL Providence and is in the lineup Sunday against the San Jose Sharks.
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.
McAvoy agreed to terms on an eight-year, $76 million contract extension with the Boston Bruins on Friday, Pierre LeBrun 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.
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