On November 5, 2021, Allison Goldberg informed FirstMark Horizon Acquisition Corp. (the ?Company?) of her decision to resign from the board of directors of the Company, effective as of November 5, 2021. Ms. Goldberg had served as a member of the Company?s board of directors since October 2020. Ms. Goldberg?s resignation was not the result of any disagreement with the Company on any matter related to the Company?s operations, policies or practices.