Star Peak Energy Transition Corp

Star Peak Energy Transition Corp, traded under the ticker STPK, was a blank-check company sponsored by Star Peak Capital LLC that completed its initial public offering in 2020 with a focus on the energy transition and clean technology sector. The SPAC announced and subsequently closed a business combination with Stem, Inc., an AI-enabled energy storage services and software company, with the de-SPAC transaction completing in April 2021 and the combined entity listing on the New York Stock Exchange under the ticker STEM. The entity filed an 8-K with the SEC on December 19, 2025, under accession number 0001758766-25-000085. Sign up for a SpacDesk account to access the full filing history, deal timelines, and sponsor analytics for STPK and thousands of other SPAC transactions.