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AMTB 424B5: Secondary offering

Amerant Bancorp Inc.

Filed with the SEC on · accession 0001628280-26-061685

AMTB filed a 424B5 (prospectus (offering)) with the SEC on Sep 14, 2026. Amerant Bancorp Inc. filed a preliminary prospectus supplement for an offering of senior notes due 2031, with the aggregate principal amount, interest rate, and price to be determined. The stock moved +0.8% by the first close after the filing.

Summary of the filing

Amerant Bancorp Inc. filed a preliminary prospectus supplement for an offering of senior notes due 2031, with the aggregate principal amount, interest rate, and price to be determined. The notes are unsecured and unsubordinated, and the offering is being managed by Raymond James as sole book-running manager.

For details, click here →How to read a 424B5 →

Key details

IssuerAmerant Bancorp Inc.
UnderwriterRaymond James

How AMTB stock reacted

Close before

$29.32

Sep 11, 2026

First close after

+0.75%

$29.54

5 trading days

+1.64%

$29.80

Since filing

+3.44%

$30.33

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Frequently asked questions

What did AMTB file with the SEC on Sep 14, 2026?

AMTB filed a 424B5 (Secondary offering). Amerant Bancorp Inc. filed a preliminary prospectus supplement for an offering of senior notes due 2031, with the aggregate principal amount, interest rate, and price to be determined. The notes are unsecured and unsubordinated, and the offering is being managed by Raymond James as sole book-running manager.

What does a secondary offering mean for AMTB stock?

New shares dilute existing holders and are often sold at a discount to the market price.

How do I read a 424B5?

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 424B5 (prospectus (offering)): The final terms of an offering of shares or bonds.

How did AMTB stock react to this filing?

AMTB closed at $29.32 before the filing and $29.54 on Sep 14, 2026 (+0.75%). Five trading days later: $29.80 (+1.64%).

Other AMTB SEC filings

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