FirstMark Horizon Acquisition Corp., trading on Nasdaq under the ticker FMAC, is a blank-check company sponsored by FirstMark Capital, a New York-based venture firm with a history of early-stage technology investments. The SPAC completed its initial public offering in January 2021 and targeted the technology and telecommunications sectors. An 8-K filed with the SEC on October 7, 2021, under accession number 0001213900-21-051724, disclosed material developments in the company's business combination process; the filing formed part of the public record as the SPAC advanced toward a proposed merger with fixed-wireless broadband provider Starry Group Holdings. For complete filing history, deal terms, and real-time status updates on FMAC and hundreds of other SPACs, sign up for full data access at SpacDesk.