American Integrity Insurance Group, Inc. (AII) Form 424B3 — Oct 19, 2026

American Integrity Insurance Group filed a 424B3 prospectus covering up to $150 million of mixed securities (common and preferred stock, warrants, depositary shares, units and debt securities) under its shelf registration, plus resale of up to 4,610,180 common shares by selling stockholder Sowell & Co. No company proceeds come from Sowell's resale; the registration fulfills contractual registration rights from the May 2025 IPO. A full sale would exit Sowell entirely and place roughly 23.5% of the 19.595 million shares outstanding into potential supply.

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