Thrun (shoulder) was added to injured reserve Saturday, Max Miller of The Hockey News reports.
Thrun suffered an apparent shoulder injury in Tuesday's win over the Rangers. The 22-year-old blueliner will now be sidelined until the Sharks return from the All-Star break on Feb. 14. Thrun has a goal and two assists through 23 games in his rookie campaign. Ty Emberson (upper body) was officially activated from IR in a corresponding move.