Alyst Acquisition Corp. (Nasdaq: AYA) is a blank-check company that filed an S-1/A registration statement amendment with the SEC on June 21, 2007, under accession number 0001144204-07-032897, advancing its registration during the active SPAC issuance cycle of that year. Formed as a special purpose acquisition company targeting a business combination, Alyst was part of the first-generation SPAC wave that preceded the instrument's resurgence in the 2020s. The 2007 filing places it among a cohort of early blank-check vehicles that operated under the regulatory and market conventions of that era. Visitors seeking full filing history, sponsor details, and deal-outcome data for Alyst Acquisition Corp. and thousands of other SPACs are invited to sign up for complete access on SpacDesk.