Rainier Acquisition (RNAQW) SEC Filings

Rainier Acquisition Corp. was the issuer in a beneficial-ownership report by Sio Capital Management, LLC, which reported 500,000 Units, or 5.67% of the class, as of September 30, 2026. Sio reported shared voting and dispositive power over the position. Each Unit consists of one Class A ordinary share and one-quarter of one redeemable warrant to acquire one Class A ordinary share. The reported percentage was based on 8,825,000 shares outstanding following the September 2, 2026 issuances.