AII 424B3: Shelf registration
American Integrity Insurance Group
Filed with the SEC on · accession 0001193125-26-425257
AII filed a 424B3 (prospectus (offering)) with the SEC on Oct 19, 2026. American Integrity Insurance Group filed a 424B3 prospectus covering a $150 million shelf registration of various securities, including common stock, preferred stock, warrants, depositary shares, units, and debt securities. The stock moved +1.7% by the first close after the filing.
Summary of the filing
American Integrity Insurance Group filed a 424B3 prospectus covering a $150 million shelf registration of various securities, including common stock, preferred stock, warrants, depositary shares, units, and debt securities. Additionally, a selling stockholder may offer and sell up to 4,610,180 shares of common stock.
Key details
How AII stock reacted
Close before
$27.50
Oct 16, 2026
First close after
+1.75%
$27.98
5 trading days
+4.84%
$28.83
Since filing
+2.33%
$28.14
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Click hereFrequently asked questions
What did AII file with the SEC on Oct 19, 2026?
AII filed a 424B3 (Shelf registration). American Integrity Insurance Group filed a 424B3 prospectus covering a $150 million shelf registration of various securities, including common stock, preferred stock, warrants, depositary shares, units, and debt securities. Additionally, a selling stockholder may offer and sell up to 4,610,180 shares of common stock.
What does a shelf registration mean for AII stock?
New shares dilute existing holders and are often sold at a discount to the market price.
How do I read a 424B3?
The final terms of an offering of shares or bonds. Look at price, number of shares and the discount to the market price. Large offerings dilute existing shareholders.
Why are SEC filings important?
Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 424B3 (prospectus (offering)): The final terms of an offering of shares or bonds.
How did AII stock react to this filing?
AII closed at $27.50 before the filing and $27.98 on Oct 19, 2026 (+1.75%). Five trading days later: $28.83 (+4.84%).
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