Carson Cooper trades
| Boston Bruins acquire | Date | Montreal Canadiens acquire | ||
|---|---|---|---|---|
 | Carson Cooper | May 22, 1927 | Billy Boucher |  |
| Detroit Cougars acquire | Date | Boston Bruins acquire | ||
|---|---|---|---|---|
 | Carson Cooper | May 22, 1927 | cash | |
| Boston Bruins acquire | Date | Montreal Canadiens acquire | ||
|---|---|---|---|---|
| Billy Boucher | January 17, 1927 | Carson Cooper | |
| Comment: Both teams hold right of recall (Players later returned to their old team) | ||||