Pickering (undisclosed) was assigned to the WHL's Swift Current Broncos on Monday.
Pickering is battling an undisclosed injury, according to Seth Rorabaugh of TribLive.com.
Pickering was reassigned to AHL Wilkes-Barre/Scranton on Thursday, Dave Molinari of Pittsburgh Hockey Now reports.
Pickering was reassigned to WHL Swift Current on Saturday, per CapFriendly.
Pickering sustained an upper-body injury that will limit him during the Penguins' rookie camp, Pens Inside Scoop reports Thursday.
Pickering signed a three-year, entry-level contract with the Penguins on Saturday.
Pickering was selected 21st overall by the Penguins in the 2022 NHL Entry Draft on Thursday.