Rainier Acquisition Corporation Announces Full Exercise of Over-Allotment Option, Bringing Total IPO Gross Proceeds to $86,250,000

NEW YORK, NY, Sept. 02, 2026 (GLOBE NEWSWIRE) -- Rainier Acquisition Corporation (the "Company") announced today that the underwriter of its previously announced initial public offering has exercised in full its over-allotment option to purchase an additional 1,125,000 units at a price of $10.00 per unit. The closing of the over-allotment option on September 2, 2026 brought total units sold in the initial public offering to 8,625,000 units and aggregate gross proceeds to $86,250,000, before underwriting discounts and offering expenses. Following the closing of the over-allotment option, an aggregate of $86,250,000 ($10.00 per unit sold in the initial public offering) is held in the Company’s trust account.