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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

## FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): November 05, 2025

American Coastal Insurance Corporation

(Exact name of Registrant as Specified in Its Charter)

Delaware | 001-35761 | 75-3241967
(State or Other Jurisdiction of Incorporation) | (Commission File Number) | (IRS Employer Identification No.)
570 Carillon Parkway, Suite 100 |
St. Petersburg, Florida |  | 33716
(Address of Principal Executive Offices) |  | (Zip Code)

Registrant’s Telephone Number, Including Area Code: (727) 633-0851

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class |  | Trading Symbol(s) |  | Name of each exchange on which registered
Common Stock, $0.0001 par value per share |  | ACIC |  | The Nasdaq Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

## Item 2.02 Results of Operations and Financial Condition.

On November 5, 2025, American Coastal Insurance Corporation (the Company, we, our) issued a press release relating to our earnings for the third quarter ended September 30, 2025 (the Earnings Release). We have attached a copy of the Earnings Release as Exhibit 99.1.

## Item 7.01 Regulation FD Disclosure.

The executive officers of the Company intend to use the materials filed herewith, in whole or in part, in one or more meetings with investors and analysts, beginning on November 5, 2025. A copy of the Earnings presentation is attached hereto as Exhibit 99.2.

The information furnished under this Item 2.02 and 7.01, including Exhibit 99.1 and Exhibit 99.2 attached hereto, shall not be deemed “filed” for purposes of Section 18 of the Securities Act of 1934, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, except as shall be expressly set forth by specific reference to such filing.

## Item 9.01 Financial Statements and Exhibits.

Exhibit No. |  | Description
99.1 |  | Earnings release issued by the Company on November 5, 2025
99.2 |  | Earnings presentation issued by the Company on November 5, 2025
104 |  | Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

|  |  | AMERICAN COASTAL INSURANCE CORPORATION
Date: | November 5, 2025 | By: | /s/ B. Bradford Martz
|  |  | B. Bradford Martz, President & Chief Executive Officer