Pioneer Merger Corp. (Nasdaq: PACX) is a blank check company that filed a Form 15-12G with the SEC on January 26, 2023, formally initiating the termination of its securities registration under Section 12(g) of the Securities Exchange Act. The filing, bearing accession number 0001104659-23-007081, marks the conclusion of PACX's public-market reporting obligations and signals the end of the company's lifecycle as a registered SPAC. Form 15-12G filings of this type are typically submitted when a blank check company has wound down following either a completed business combination or a liquidation. For comprehensive filing history, sponsor details, and status data on Pioneer Merger Corp. and every other SPAC in the market, sign up for full access at SpacDesk.