Bolduc was placed on waivers by the Islanders on Sunday, Elliotte Friedman of Sportsnet reports.
Bolduc made 34 regular-season appearances with the Islanders last year, racking up five points and 40 blocked shots while averaging 13:09 of ice time. If he clears waivers, he'll likely begin this year in the AHL, but he could be called up at some point if the NHL club needs additional depth.