FirstMark Horizon Acquisition Corp. (Nasdaq: FMAC), sponsored by FirstMark Capital, is a blank-check company that completed its business combination with Starry Group Holdings, Inc. in March 2022, approximately one year after its 2021 initial public offering focused on the technology and telecommunications sector. The Form 8-K filed March 18, 2022 reflects disclosures tied to that closing event. Starry, a fixed wireless broadband internet provider, subsequently listed as STRY on the NYSE. FirstMark Capital, a New York-based venture firm known for enterprise and consumer technology investments, served as FMAC's sponsor throughout the transaction. Sign up on SpacDesk for full filing history, sponsor profiles, and deal analytics on FMAC and the broader SPAC market.