Rainier Acquisition director Jonas Grossman acquires $56,250 in common shares

• Rainier Acquisition reported purchases by director Jonas Grossman, a 10% owner, via Ravenna 7.
• Ravenna 7 bought 5,625 Class A ordinary shares at USD 10 per share, raising its stake to 200,000 shares.
• The entity also acquired 1,407 warrants at USD 10, lifting its warrant position to 50,000.
• The warrants have an exercise price of USD 11.5 per share.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Rainier Acquisition Corporation published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001104659-26-104746), on September 02, 2026, and is solely responsible for the information contained therein.