NEW YORK, May 30, 2023 /PRNewswire/ — Pomerantz LLP announces that a class action lawsuit has been filed against Stem, Inc. (“Stem” or the “Company”) f/k/a Star Peak Energy Transition Corp. (“STPK”) (NYSE: STEM; STEM.WS; STPK; STPK.WS; STPK.U), and certain officers and directors. The…