Welcome to our dedicated page for Rainier Acquisition SEC filings (Ticker: RNAQU), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Our SEC filing database is enhanced with expert analysis from Rhea-AI, providing insights into the potential impact of each filing on Rainier Acquisition's stock performance. Each filing includes a concise AI-generated summary, sentiment and impact scores, and end-of-day stock performance data showing the actual market reaction. Navigate easily through different filing types including 10-K annual reports, 10-Q quarterly reports, 8-K current reports, proxy statements (DEF 14A), and Form 4 insider trading disclosures.
Designed for fundamental investors and regulatory compliance professionals, our page simplifies access to critical SEC filings. By combining real-time SEC filing updates, Rhea-AI's analytical insights, and historical stock performance data, we provide comprehensive visibility into Rainier Acquisition's regulatory disclosures and financial reporting.
Rainier Acquisition Corp (RNAQU) is reported to have 11.2% of its Class A ordinary shares beneficially owned by a group consisting of 683 Capital Partners, LP, 683 Capital Management, LLC, and Ari Zweiman. As of August 27, 2026, this group beneficially owned 862,500 Class A ordinary shares, based on 7,694,375 Class A ordinary shares outstanding. The securities relate to units composed of Class A ordinary shares with a $0.0001 par value and redeemable warrants, which initially trade together under CUSIP G73591110. The reporting parties act as a group, with 683 Capital Management serving as investment manager to 683 Capital Partners and Ari Zweiman serving as Managing Member of 683 Capital Management.
Rainier Acquisition Corp (RNAQU) has a significant shareholder group led by 683 Capital Partners, LP, which, together with related entities, reports beneficial ownership of 862,500 Class A ordinary shares. This represents 11.2% of Rainier’s Class A ordinary shares outstanding as of August 27, 2026.
The ownership is held by 683 Capital Partners, LP, with 683 Capital Management, LLC as its investment manager and Ari Zweiman as managing member of 683 Capital Management, LLC. All three reporting persons share voting and dispositive power over these 862,500 shares, with no sole voting or dispositive power reported. The percentage interest is based on 7,694,375 Class A ordinary shares outstanding as disclosed in Rainier’s prospectus for its units, which consist of Class A ordinary shares and redeemable warrants that initially trade together.
Rainier Acquisition Corporation (RNAQU), a Cayman Islands SPAC, reports closing its IPO structure and over-allotment, along with an audited opening balance sheet. The company completed an initial public offering of 7,500,000 Units at $10.00 per Unit and the underwriters later fully exercised their over-allotment option for an additional 1,125,000 Units at $10.00 per Unit, bringing total Unit sales to $86,250,000 of gross proceeds.
Simultaneously with the IPO, the sponsor purchased 194,375 Private Placement Units at $10.00 each, and upon over-allotment closing, an additional 5,625 Private Placement Units at $10.00, all held by Ravenna 7 LLC. As of August 28, 2026, $75,000,000 from the IPO and concurrent private placement was held in a Trust Account, with Class A public shares recorded at a $10.00 per-share redemption value. The audited balance sheet shows total assets of $76,100,902, liabilities of $2,581,668, and 7,500,000 Class A ordinary shares classified as redeemable. Management discloses that post-IPO liquidity alleviates prior substantial doubt about the company’s ability to continue as a going concern through the 24‑month business combination period ending August 28, 2028.
Rainier Acquisition Corp (RNAQU) insider activity shows Ravenna 7 LLC, an entity for which director and ten percent owner Jonas Grossman is the sole managing member, purchased 5,625 units in a private placement at $10.00 per unit. Each unit includes one Class A ordinary share and one-quarter of one warrant, resulting in the acquisition of 5,625 Class A ordinary shares and 1,407 warrants to purchase Class A ordinary shares at an exercise price of $11.50 per share. After these transactions, Ravenna 7 LLC holds 200,000 Class A ordinary shares and 50,000 warrants indirectly reported by Grossman, who disclaims beneficial ownership except to the extent of his pecuniary interest. The warrants become exercisable on the later of August 28, 2026 and completion of Rainier’s initial business combination, and will expire on the fifth anniversary of that business combination or earlier upon redemption or liquidation. No Rule 10b5-1 trading plan is reported for these purchases.
Rainier Acquisition Corp (RNAQU) has a new significant holder disclosure. MMCAP International Inc. SPC and MM Asset Management Inc. jointly report beneficial ownership of 400,000 Units of Rainier Acquisition Corp, representing 5.2% of the Unit class, based on 7,694,375 Units outstanding as of August 28, 2026. The reporting persons have shared voting and dispositive power over all 400,000 Units and no sole voting or dispositive power. The securities are Units consisting of Class A ordinary shares with $0.0001 par value and redeemable warrants.
Rainier Acquisition Corp (RNAQU) reports that an entity associated with director and ten percent owner Jonas Grossman, Ravenna 7 LLC, purchased 194,375 Class A ordinary shares and warrants to purchase 48,593 Class A ordinary shares on August 28, 2026. The securities were acquired in a private placement of 194,375 units at $10.00 per Unit, each Unit consisting of one Class A ordinary share and one-quarter of one warrant. The warrants carry a $11.50 exercise price per share and become exercisable on the later of August 28, 2026 and completion of Rainier Acquisition Corp’s initial business combination, expiring on the fifth anniversary of that business combination or earlier upon redemption or liquidation. The holdings are reported as indirect, held by Ravenna 7 LLC, for which Grossman is sole managing member and he disclaims beneficial ownership except to the extent of any pecuniary interest.
Rainier Acquisition Corp (RNAQU), a special purpose acquisition company focused on global life sciences, completed its initial public offering of 7,500,000 units at $10.00 per unit on August 28, 2026, generating $75,000,000 in gross proceeds. Each unit includes one Class A ordinary share and one-quarter of one redeemable warrant, with each whole warrant exercisable at $11.50 per share. The underwriter has a 45‑day option to buy up to 1,125,000 additional units. The company also sold 194,375 private placement units at $10.00 per unit to its sponsor without underwriting discounts.
A total of $75,000,000 from the IPO and private placement was deposited into a U.S. trust account for the benefit of public shareholders, to be released mainly upon completion of an initial business combination or specified redemption events, including if no business combination occurs within 24 months of the IPO closing. Rainier appointed Wing C. (Andrew) Lam, PharmD, and Chidozie Ugwumba as independent directors, adopted a Second Amended and Restated Memorandum and Articles of Association, and confirmed that its board committees meet Nasdaq independence requirements.
Rainier Acquisition Corporation (RNAQU), a Cayman Islands blank check company, is conducting an initial public offering of 7,500,000 units at $10.00 per unit, for gross proceeds of $75,000,000. Each unit includes one Class A ordinary share and one-quarter of a redeemable warrant exercisable at $11.50 per share.
The company will place $75,000,000 (or $86,250,000 with full over-allotment) into a U.S. trust account and has a 24‑month “completion window” to consummate a business combination, primarily targeting life sciences companies. Public shareholders will have redemption rights in connection with the business combination or certain charter amendments.
The sponsor, Ravenna 7 LLC, holds 2,031,250 Class B founder shares (subject to forfeiture of up to 281,250) and will purchase 194,375 private placement units for about $1.94 million. Founder shares were acquired for $25,000 in total and are designed to equal 20% of post‑IPO ordinary shares, which the prospectus notes will cause substantial dilution to public shareholders. Chardan acts as sole book‑running manager, with B. Riley Securities serving as qualified independent underwriter under FINRA Rule 5121 due to conflicts of interest.
Rainier Acquisition Corp (RNAQU) reported that director Lam Wing C. holds 25,000 Class B ordinary shares, owned directly. Each Class B ordinary share is convertible into one Class A ordinary share at the holder’s option and will also automatically convert upon the company’s initial business combination; these Class B shares have no expiration date.