Rainier Acquisition Corporation

Last updated September 27, 2026

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Organization details

Legal name: Rainier Acquisition Corporation
Ownership: Public
Status: Active
Sector (GICS): Financials
SIC code: 6770 — Blank Checks
Jurisdiction of incorporation: Cayman Islands
Headquarters city: New York
Headquarters state / province: New York
Headquarters country: United States
Fiscal year end: December
Ticker symbol: RNAQ
Primary stock exchange: Nasdaq

Identifiers

SEC CIK: 0002147219
EIN: 98-1782716

Board of directors

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Chidozie Ugwumba · Director
Since 2026
Gbolahan Amusa · Director · Chief Executive Officer
Since 2026
Isaac Manke · Director
Since 2026
Jonas Grossman · Director
Since 2026
Wing C. Lam · Director
Since 2026

Chief executives

Gbolahan Amusa · Chief Executive Officer

Since August 2026

Board connections

3 of this board's directors also sit on 5 other boards.

Shared director Other board Same sector

Addex Therapeutics Ltd
via Isaac Manke
Clene Inc.
via Chidozie Ugwumba
OnKure Therapeutics Inc.
via Isaac Manke
Q32 Bio Inc.
via Isaac Manke
ZOOZ Strategy Ltd.
via Jonas Grossman

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months: $2,000,000; 2 purchases by 1 insider
Sold, last 12 months: $0; 0 sales by 0 insiders

Date	Insider	Transaction	Shares	Price	Value
Sep 2, 2026	Jonas Grossman Director, 10% owner	Open-market purchase	+5,625	$10.00	$56,250
Aug 28, 2026	Jonas Grossman Director, 10% owner	Open-market purchase	+194,375	$10.00	$1,943,750

Peers

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Questions about Rainier Acquisition Corporation

Who is the CEO of Rainier Acquisition Corporation?

Gbolahan Amusa has been Rainier Acquisition Corporation's Chief Executive Officer since August 2026.

How many directors are on Rainier Acquisition Corporation's board?

Rainier Acquisition Corporation's board has 5 directors: Chidozie Ugwumba, Gbolahan Amusa, Isaac Manke, Jonas Grossman and Wing C. Lam.

Are Rainier Acquisition Corporation insiders buying or selling shares?

Over the last 12 months, Rainier Acquisition Corporation insiders bought $2.0 million of shares in 2 purchases and made no open-market sales on the open market, as reported to the SEC on Forms 4 and 5.

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