2025–26 saw the defenceman continue to build on what he’d established in the prior season. Armed with a full-time roster spot, Pettersson skated in 70 games for Vancouver, putting up three goals and seven assists while averaging nearly 15 minutes played per game. This was all done despite many changes to Vancouver’s blueline throughout the season, including the subtraction of Quinn Hughes and Tyler Myers, as well as injuries to Derek Forbort, Victor Mancini, and Pierre-Olivier Joseph throughout the course of the year.
