Gauthier was placed on waivers by the Penguins on Wednesday for the purpose of reassignment to the minors.
Gauthier wasn't going to make the Penguins' Opening Night roster considering the depth ahead of him between the pipes. The 25-year-old backstop could spend most of the year with AHL Wilkes-Barre/Scranton, though he might also get a look with ECHL Florida for a larger role.