NasdaqRNAQUPrice ——

Identifying the next generation of public life sciences leaders

Rainier Acquisition Corp. partners with category-defining life sciences companies to create long-term public-market value through scientific rigor, global sourcing and disciplined execution.

About the company

SPAC Overview

Indicative offering size

$75 million

$86.25 million with full exercise of the over-allotment option

Exchange

Nasdaq: RNAQU

Rainier Acquisition Corp. units · Cayman Islands domiciled

Trust funding

100.0%

$10.00 per unit

Duration

24 months

Initial business combination period

Unit composition

1 share + ¼ warrant

One Class A ordinary share and one-fourth redeemable warrant

Warrant structure

5-year warrants

$11.50 exercise price · callable at $16.50

Press releases

Latest News

Our team

Experienced SPAC and life sciences leadership

Decades of experience investing in, operating, financing and taking life sciences companies public through multiple market cycles.

A physician, investor and capital markets leader who helped build Metsera into one of biotech's fastest value-creation stories. His experience spans Chardan, UBS, Goldman Sachs and AllianceBernstein, along with executive roles across prior life sciences SPACs.

Washington University, MD · Chicago Booth, MBA · CFA Charterholder

Former General Partner at Acorn BioVentures and New Leaf Venture Partners, with prior experience at AllianceBernstein, Deutsche Bank and Health Advances. He has served as a director of multiple biotechnology companies.

MIT, PhD

Co-Founder, Managing Partner and President of Chardan, a healthcare-focused investment bank. He has led a platform that has completed or advised on 175 SPAC IPOs and de-SPAC transactions.

Founder, executive and director of 15 SPACs

Managing Director and Head of Biotech Private Equity at Ally Bridge Group, with prior experience at Jefferies, BMO Capital Markets and Canaccord Genuity, and extensive biotechnology board experience.

Long Island University, PharmD · Drexel University, MBA

A corporate finance and capital markets executive with more than 25 years of experience across strategic transactions and SPACs. He is a Managing Director at Chardan and an advisor to public and private growth companies.

Cornell University, BA · NYU Stern, MBA

Committee Composition

DirectorBoard RoleAuditCompensationNominating & Corporate Governance
Gbola Amusa, MD, CFADirector & CEO———
Isaac Manke, PhDChairmanPendingPendingPending
Jonas GrossmanDirectorPendingPendingPending
Andrew Lam, PharmDDirector NomineePendingPendingPending

Committee membership and chair assignments are not yet specified in the draft S-1 and will be updated following effectiveness.

Governance Documents

SEC Filings

Latest Presentation

Rainier Acquisition Corp. Discussion Deck · August 2026

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Contact Us

Transfer and Warrant Agent

Continental Stock Transfer & Trust Company

1 State Street, 30th Floor
New York, NY 10004

Sole Book-Running Manager

Chardan Capital Markets LLC

1 Penn Plaza, Suite 4800
New York, NY 10119