FirstMark Horizon Acquisition Corp. (ticker: FMAC), sponsored by FirstMark Capital, was a technology-focused special purpose acquisition company that completed its initial public offering in January 2021. The blank-check company, backed by the New York-based venture capital firm best known for early investments in Pinterest, Airbnb, and Discord, targeted technology-sector merger candidates. In March 2022, FirstMark Horizon closed its business combination with Starry Group Holdings, a fixed wireless broadband internet service provider, with the combined company listing under the ticker STRY on the New York Stock Exchange. The March 28, 2022 Form 8-K filing with the SEC corresponds to transaction-related disclosures surrounding that closing. Sign up at SpacDesk for full filing history, deal timelines, and sponsor analytics on FirstMark Horizon and hundreds of other SPACs.