Perimeter Acquisition Corp. I, trading under the unit ticker PMTRU, is a blank-check special purpose acquisition company currently in active status following its 10-Q quarterly filing with the SEC on November 12, 2025 (accession 0001493152-25-021951). The company is structured as a SPAC targeting an acquisition or merger candidate, with units comprising the company's publicly traded securities still listed under the PMTRU designation. The filing reflects the company's continued operation as a shell entity in its search phase, consistent with standard SPAC reporting obligations under SEC rules. Sector focus and sponsor details are tracked in full on SpacDesk — sign up at SpacDesk for complete filings, sponsor profiles, and deal-status data on Perimeter Acquisition Corp. I and hundreds of other active SPACs.