# EDGAR Filing Document

**Accession Number:** 0001401521
**File Stem:** 0001401521-26-000031
**Filing Date:** 2026-5
**Character Count:** 7747
**Document Hash:** 34773ebc36950bfc1b0afa62fe052227
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001401521-26-000031.hdr.sgml**: 20260515

**ACCESSION NUMBER**: 0001401521-26-000031

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 9

**CONFORMED PERIOD OF REPORT**: 20260515

**ITEM INFORMATION**: Other Events

**FILED AS OF DATE**: 20260515

**DATE AS OF CHANGE**: 20260515

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** AMERICAN COASTAL INSURANCE Corp
- **CENTRAL INDEX KEY:** 0001401521
- **STANDARD INDUSTRIAL CLASSIFICATION:** FIRE, MARINE & CASUALTY INSURANCE [6331]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 753241967
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-52833
- **FILM NUMBER:** 26987216

**BUSINESS ADDRESS:**
- **STREET 1:** 570 CARILLON PARKWAY
- **STREET 2:** SUITE 100
- **CITY:** SAINT PETERSBURG
- **STATE:** FL
- **ZIP:** 33716
- **BUSINESS PHONE:** 727-633-0851

**MAIL ADDRESS:**
- **STREET 1:** 570 CARILLON PARKWAY
- **STREET 2:** SUITE 100
- **CITY:** SAINT PETERSBURG
- **STATE:** FL
- **ZIP:** 33716

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** UNITED INSURANCE HOLDINGS CORP.
- **DATE OF NAME CHANGE:** 20081002

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** FMG ACQUISITION CORP
- **DATE OF NAME CHANGE:** 20070531

?xml version='1.0' encoding='ASCII'? 8-K

**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):** May 15, 2026<br>

------

American Coastal Insurance Corporation

**(Exact name of Registrant as Specified in Its Charter)**

------

---

| | | |
|:---|:---|:---|
| Delaware | 001-35761 | 75-3241967 |
| **(State or Other Jurisdiction<br>of Incorporation)** | **(Commission File Number)** | **(IRS Employer<br>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<br>

**(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:**

---

| | |
|:---|:---|
| **<br>Title of each class** | **<br>Name of each exchange on which registered** |
| Common Stock, $0.0001 par value per share<br> 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 8.01 Other Events.
Effective June 1, 2026, American Coastal Insurance Corporation (ACIC), through its insurance subsidiary American Coastal Insurance Company (AmCoastal), renewed its core catastrophe reinsurance program (Core CAT). Highlights include the following:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;•For 2026/27, ACIC purchased approximately $1.918 billion of occurrence-based limit in the aggregate, an increase of $241.5 million, or 14.4%, from the $1.676 billion of occurrence-based limit in the aggregate purchased for the 2025/26 Core CAT program.

oPlaced $200 million of new multi-year Catastrophe Bond limit in 2026 in two $100 million tranches, one below and alongside the Florida Hurricane Catastrophe Fund (FHCF) layer and one at the top of the program.

oThe top layer, which includes a $100 million Catastrophe Bond tranche and $100 million of open market limit, cascades to $50 million in a multiple event scenario. This is in addition to $235 million of limit sitting below this layer, which also cascades to $50 million, bringing the total cascading limit for the 2026/27 Core CAT program to $435 million.

oPlaced a multi-year external quota share at a 15.0% cession rate with an unaffiliated reinsurer holding an AM Best rating of A+ providing coverage for all catastrophe perils and attritional losses, subject to defined occurrence and aggregate limitations.

oOccurrence-based structure with estimated first event limit of $1.68 billion (285.7 YR RT in AIR v.13 LTwDS + 10% LAE), an increase of $349.5 million, or 26.3%, from the 2025/26 Core CAT program. Sufficient coverage for both a single event and multi event according to Catastrophe models approved by the Florida Office of Insurance Regulation.

oFirst event retention of up to $49 million (15.4% of stockholders' equity as of December 31, 2025), with $26.5 million retained by AmCoastal and $22.5 million retained by the affiliated captive, an increase of $19.25 million from the $29.75 million (12.6% of stockholders' equity as of December 31, 2024) in the 2025/26 Core CAT program. The first event retention figures include a $6.5 million net retention from the excess and surplus (E&S) assumed portfolio.

oSecond event retention of up to $25 million (7.9% of stockholders' equity as of December 31, 2025) assuming a 1-in-100-year event followed by a 1-in-50-year event in the same season, up $6.5 million from $18.5 million (7.9% of stockholders' equity as of December 31, 2024) in the 2025/26 Core CAT program. The second event retention figures also include a $6.5 million net retention from the E&S assumed portfolio.

oAll catastrophe perils are covered, including windstorms named or numbered by the National Hurricane Center.

oFor the FHCF Reimbursement Contract effective June 1, 2026, ACIC elected 90% coverage. The total mandatory FHCF layer is projected to provide approximately $571.5 million of total Florida-only coverage attaching at $363.7 million and exhausting at $998.7 million, which inures to the benefit of the open market catastrophe reinsurance program.

oExcluding the unaffiliated 15.0% quota share, the total provisional cost of ACIC's 2026/27 catastrophe excess of loss reinsurance programs, excluding potential reinstatement premium, is approximately $179.5 million (subject to change based on actual exposure at September 30, 2026), which compares to $201.85 million, or (11.1)%, to the 2025/26 Core CAT program.

oThe maximum reinstatement/additional premium exposure, assuming all layers that reinstate are exhausted from a first event, is $0.9 million, a decrease of $(4.9) million, or (84.0)% from the 2025/26 Core CAT Program.

------

**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: | May 15, 2026 | By:  | */s/ B. Bradford Martz* |
|  |  |  | B. Bradford Martz, President & Chief Executive Officer |

---

------