Private company

Mount Rainier Acquisition Corp.

American blank check company, incorporated in Delaware1

In its 2023 annual report the company says: “We are a blank check company incorporated as a Delaware corporation and formed for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with one or more businesses. Our Sponsor is DC Rainier SPV LLC, a Delaware limited liability company.”25 It is headquartered in New York, New York.1

Last updated Oct 20, 2026.

Overview

  • IndustryBlank Checks1
  • HeadquartersNew York, New York1
  • Incorporated inDE2
  • Business address256 West 38Th Street 15Th Floor, New York, Ny 100182
  • Filer category, Emerging growth company2

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Financials

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

Financial statements

Fiscal year202120222023
Operating income-$3.1M3
Interest$5.4K3
Income tax$345.8K3
Net income-$1.5M3

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Corporate structure

Mount Rainier 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 Mount Rainier Acquisition Corp.

  • MMCAP International Inc. SPC Filed SC 13G/A on Mount Rainier Acquisition Corp., latest Feb 14, 2023 (2 filings since Oct 8, 2021)
  • HIGHBRIDGE CAPITAL MANAGEMENT LLC Filed SC 13G/A on Mount Rainier Acquisition Corp., latest Jan 25, 2023 (3 filings since Oct 15, 2021)
  • DC Rainier SPV LLC Filed SC 13D on Mount Rainier Acquisition Corp., latest Oct 15, 2021
  • K2 PRINCIPAL FUND, L.P. Filed SC 13G/A on Mount Rainier Acquisition Corp., latest Oct 8, 2021 (2 filings since Oct 5, 2021)
  • Mount Rainier 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 Mount Rainier 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$114.2K3 Dec 31, 2022$799.3K3 Dec 31, 2021−85.7%

Leadership

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

Chief executive

  1. Matthew Joseph Kearney2021

Chief financial officer

  1. Young Cho2021
2025
Board members and other officers (5)

Timeline

  1. Feb 27, 20238-K Shareholder vote11
  2. Jan 27, 20238-K Other events12
  3. Jan 4, 20238-K Entered a material agreement; Shareholder vote; Other events13
  4. Dec 22, 20228-K Bylaws or fiscal year changed; Shareholder vote; Other events14
  5. Oct 27, 20228-K Entered a material agreement; New debt or obligation15
  6. Jun 21, 20228-K Entered a material agreement16
  7. Mar 23, 20228-K Entered a material agreement; Regulation FD disclosure17
  8. Dec 30, 20218-K Other events18
  9. Oct 14, 20218-K Other events19
  10. Oct 8, 20218-K Entered a material agreement; Unregistered sale of shares; Bylaws or fiscal year changed20
  11. Oct 4, 2021New chief executive Matthew Joseph Kearney becomes CEO6

Filings

57 filings to the SEC since October 2021: 2 annual reports, 4 quarterly reports, 10 major events, 11 insider forms, 8 large holders, 22 other. The latest 20:

  1. Feb 28, 202315-12G EDGAR
  2. Feb 27, 20238-K EDGAR
  3. Feb 24, 202310-K EDGAR
  4. Feb 14, 2023SC 13G/A EDGAR
  5. Feb 10, 2023DEF 14A EDGAR
  6. Jan 31, 2023PRE 14A EDGAR
  7. Jan 27, 20238-K EDGAR
  8. Jan 25, 2023SC 13G/A MOUNT RAINIER ACQUISITION CORP. EDGAR
  9. Jan 4, 2023425 EDGAR
  10. Jan 4, 20238-K EDGAR
  11. Dec 29, 2022DEFA14A EDGAR
  12. Dec 22, 2022DEFA14A EDGAR
  13. Dec 22, 2022425 EDGAR
  14. Dec 22, 20228-K EDGAR
  15. Dec 9, 2022DEFM14A EDGAR
  16. Dec 5, 2022DEF 14A EDGAR
  17. Nov 23, 2022PRE 14A EDGAR
  18. Nov 4, 202210-Q EDGAR
  19. Oct 27, 2022425 EDGAR
  20. Oct 27, 20228-K EDGAR

The 57 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.

Insider trades

3 open-market trades by officers, directors and large owners since October 2021: 3 buys and 0 sales. Grants, option exercises and gifts are left out.

DateWhoTradeSharesPriceValueFiling
Oct 7, 2021DC Rainier SPV LLC10% ownerBuy583,200Form 4
Oct 7, 2021Kearney Matthew JosephChief Executive OfficerBuy10,000Form 4
Oct 7, 2021Cho YoungChief Financial OfficerBuy3,000Form 4

From Forms 4 filed with the SEC.

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 Mount Rainier 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 EDGARMount Rainier Acquisition Corp.1
  • CIK0001854461
  • Filer status<br>emerging growth company1
  • Incorporated inDelaware1
  • Fiscal year endsDecember 311
  • Industry code (SIC)6770 Blank Checks1
  • Business address256 West 38Th Street 15Th Floor, New York, NY 100181
  • Phone121278546801
  • Shares outstanding7,622,902 as of Feb 21, 20233
  • Public float$186.3M as of Jun 30, 20223
  • On EDGAR sinceApr 21, 20211
  • Filings84 in all: 425 (24), 8-K (10), 3 (7), 10-Q (4), 4 (4), CORRESP (4), S-1/A (4), SC 13G/A (4)1
    All 24 form types

    SC 13G (3), 10-K (2), DEF 14A (2), DEFA14A (2), PRE 14A (2), UPLOAD (2), 15-12G (1), 25-NSE (1), 424B4 (1), 8-A12B (1), CERT (1), DEFM14A (1), DRS (1), EFFECT (1), S-1 (1), SC 13D (1)

  • Latest filingsAnnual report (10-K) Feb 24, 2023
    Quarterly report (10-Q) Nov 4, 2022
    Proxy statement (DEF 14A) Feb 10, 2023
    Latest 8-K (8-K) Feb 27, 2023

Sources

The numbers on this page point here. Each one links to the record it came from.

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