Private company

FirstMark Horizon Acquisition Corp.

FirstMark Horizon Acquisition Corp. is an American blank check company, incorporated in Delaware.1 It is headquartered in New York, New York.1

Last updated Oct 20, 2026.

Overview

$25.5MNet income, fiscal 20212
  • IndustryBlank Checks1
  • HeadquartersNew York, New York1
  • Incorporated inDE3
  • Business address100 5Th Ave, 3Rd Floor, New York, Ny 100113
  • Filer category, Emerging growth company3

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Financial statements

Fiscal year2021
Operating income-$5.3M2
Net income$25.5M2

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Corporate structure

FirstMark Horizon Acquisition Corp. sits at the top of its group. 1 entity, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

Major holders of FirstMark Horizon Acquisition Corp.

  • GLAZER CAPITAL, LLC Filed SC 13G/A on FirstMark Horizon Acquisition Corp., latest Feb 14, 2022
  • Weiss Asset Management LP Filed SC 13G on FirstMark Horizon Acquisition Corp., latest Feb 7, 2022
  • INTEGRATED CORE STRATEGIES (US) LLC Filed SC 13G/A on FirstMark Horizon Acquisition Corp., latest Feb 2, 2022
  • FirstMark Horizon Acquisition Corp. New York, New York

Built from major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

What it owns

What FirstMark Horizon Acquisition Corp. reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Investments

ItemLatestA year beforeChange
Cash and cash equivalents$531.2K2 Dec 31, 2021$1.2M2 Dec 31, 2020−55.5%

Intangibles and goodwill

ItemLatestA year beforeChange
Finite-lived intangibles, net$5.0M2 Dec 31, 2021$5.0M4 Dec 31, 20200%

Leadership

Who has led FirstMark Horizon Acquisition Corp., and when. Pick a name to see everywhere that person has worked.

Chief financial officer

  1. Daniel Gaisin2020
2025
Board members and other officers (6)

Timeline

  1. Mar 28, 20228-K Entered a material agreement; Unregistered sale of shares11
  2. Mar 18, 20228-K Shareholder vote12
  3. Mar 14, 20228-K Entered a material agreement13
  4. Mar 9, 20228-K Entered a material agreement; Unregistered sale of shares14
  5. Dec 14, 20218-K Earlier financial statements no longer reliable15
  6. Nov 22, 20218-K Earlier financial statements no longer reliable16
  7. Nov 5, 20218-K Executive or director change17
  8. Oct 7, 20218-K Entered a material agreement; Unregistered sale of shares; Regulation FD disclosure18
  9. Oct 5, 2020New chief executive Richard R. Heitzmann becomes CEO5

Filings

81 filings to the SEC since October 2021: 2 annual reports, 2 quarterly reports, 8 major events, 4 insider forms, 3 large holders, 62 other. The latest 20:

  1. Apr 8, 202215-12B NOTICE OF TERMINATION EDGAR
  2. Mar 28, 20224 EDGAR
  3. Mar 28, 20224 EDGAR
  4. Mar 28, 20224 EDGAR
  5. Mar 28, 20224 EDGAR
  6. Mar 28, 2022425 CURRENT REPORT EDGAR
  7. Mar 28, 20228-K CURRENT REPORT EDGAR
  8. Mar 28, 202210-K ANNUAL REPORT EDGAR
  9. Mar 24, 2022425 EDGAR
  10. Mar 18, 20228-K CURRENT REPORT EDGAR
  11. Mar 14, 2022425 CURRENT REPORT EDGAR
  12. Mar 14, 20228-K CURRENT REPORT EDGAR
  13. Mar 14, 2022425 425 FIRSTMARK EDGAR
  14. Mar 11, 2022425 EDGAR
  15. Mar 11, 2022425 EDGAR
  16. Mar 10, 2022425 EDGAR
  17. Mar 10, 2022425 EDGAR
  18. Mar 9, 2022425 CURRENT REPORT EDGAR
  19. Mar 9, 20228-K CURRENT REPORT EDGAR
  20. Mar 7, 2022DEFA14A EDGAR

The 81 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Major holders

Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.

SEC filer profile

How FirstMark Horizon Acquisition Corp. is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.

  • Name on EDGARFirstMark Horizon Acquisition Corp.1
  • CIK0001822219
  • Employer ID (EIN)85-25476501
  • Filer status<br>emerging growth company1
  • Incorporated inDelaware1
  • Fiscal year endsDecember 311
  • Industry code (SIC)6770 Blank Checks1
  • Business address100 5Th Ave, 3Rd Floor, New York, NY 100111
  • Phone(212) 792-22001
  • Public float$411.1M as of Jun 30, 20212
  • On EDGAR sinceAug 25, 20201
  • Filings114 in all: 425 (59), 8-K (13), 3 (7), SC 13G (5), 10-Q (4), 4 (4), SC 13G/A (4), 10-K (2)1
    All 22 form types

    10-K/A (2), NT 10-Q (2), 10-Q/A (1), 15-12B (1), 25-NSE (1), 424B4 (1), 8-A12B (1), CERT (1), DEFA14A (1), DEFM14A (1), DRS (1), EFFECT (1), S-1 (1), S-1MEF (1)

  • Latest filingsAnnual report (10-K) Mar 28, 2022
    Quarterly report (10-Q) Nov 22, 2021
    Latest 8-K (8-K) Mar 28, 2022