Since the 2009-10 NHL season, the Bruins have an overall record of 570-306-118, which is good for third place in the league behind the Washington Capitals (583-294-116) and the Pittsburgh Penguins (589-307-97).
The Bruins have owned several teams overall that time span as well, with the best record coming against an Atlantic Division opponent. Here are some NHL teams that have owned others. (Swipe to the last slide for the best one):