Poulin was recalled from AHL Wilkes-Barre/Scranton on Monday.
Poulin landed on the waiver wire Friday, Elliotte Friedman of Sportsnet reports.
Poulin signed a two-year, two-way deal with the Penguins on Monday.
Poulin was brought up from AHL Wilkes-Barre/Scranton on Monday, per the NHL media site.
Poulin was recalled from the AHL on Tuesday by the Penguins.
Poulin was reassigned to AHL Wilkes-Barre/Scranton on Tuesday.
Poulin was recalled from AHL Wilkes-Barre/Scranton on Tuesday.
Poulin (lower body) scored a goal on two shots against AHL Rochester on Dec. 16.
Poulin (lower body) is considered week-to-week for AHL Wilkes-Barre/Scranton, Taylor Haase of DKPittsburghSports.com reports.
Poulin will rejoin AHL Wilkes-Barre/Scranton after stepping away from hockey to focus on his mental health he announced Wednesday.