# EDGAR Filing Document

**Accession Number:** 0001401521
**File Stem:** 0001557785-26-000004
**Filing Date:** 2026-4
**Character Count:** 7887
**Document Hash:** f51c687846d28e2efa4a59ee2e340795
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001557785-26-000004.hdr.sgml**: 20260407

**ACCESSION NUMBER**: 0001557785-26-000004

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260403

**FILED AS OF DATE**: 20260407

**DATE AS OF CHANGE**: 20260407

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** MARTZ BRAD
- **CENTRAL INDEX KEY:** 0001557785

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-52833
- **FILM NUMBER:** 26844713

**MAIL ADDRESS:**
- **STREET 1:** C/O UNITED INSURANCE HOLDINGS CORP.
- **STREET 2:** 360 CENTRAL AVE., SUITE 900
- **CITY:** ST. PETERSBURG
- **STATE:** FL
- **ZIP:** 33701
**ISSUER**: 

**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

**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

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>MARTZ BRAD<br><sub>(Last) (First) (Middle)</sub><br>570 CARILLON PARKWAY, SUITE 100<br><sub>(Street)</sub><br>ST. PETERSBURG, FL 33716<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-04-03 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_President & CEO_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>AMERICAN COASTAL INSURANCE Corp [ ACIC ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2026-04-03 |  | M |  | 25903 | A | $0.00 | 391846 | D |  |
| Common Stock | 2026-04-03 |  | F |  | 10365 | D | $10.97 | 381481 | D |  |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Performance Stock Units | <sup>(1)</sup> | 2026-04-03 |  | M |  |  | 11654 | <sup>(2)</sup> | <sup>(3)</sup> | Common Stock | 11654 | $0.00 | 82197 | D |  |
| Restricted Stock Units | <sup>(1)</sup> | 2026-04-03 |  | M |  |  | 5826 | <sup>(4)</sup> | <sup>(4)</sup> | Common Stock | 5826 | $0.00 | 41101 | D |  |
| Dividend Equivalent Units | <sup>(1)</sup> | 2026-04-03 |  | M |  |  | 403 | <sup>(5)</sup> | <sup>(5)</sup> | Common Stock | 403 | $11.31 | 2778 | D |  |
| Dividend Equivalent Units | <sup>(1)</sup> | 2026-04-03 |  | M |  |  | 246 | <sup>(5)</sup> | <sup>(5)</sup> | Common Stock | 246 | $11.85 | 781 | D |  |
| Dividend Equivalent Units | <sup>(1)</sup> | 2026-04-03 |  | M |  |  | 806 | <sup>(6)</sup> | <sup>(6)</sup> | Common Stock | 806 | $11.31 | 5554 | D |  |
| Dividend Equivalent Units | <sup>(1)</sup> | 2026-04-03 |  | M |  |  | 492 | <sup>(6)</sup> | <sup>(6)</sup> | Common Stock | 492 | $11.85 | 1563 | D |  |

---

### Footnotes:

(1) Each stock unit represents a conditional right to receive one share of the company's common stock.

(2) The performance units are subject to vesting over three years with one third, rounded down to the nearest whole share of stock, vesting in each period.

(3) The number of shares of common stock that will be delivered for each performance stock unit depends on the achievement of certain performance factors. Depending on actual performance, the number of shares of common stock delivered upon the vesting date (based on the terms outlined in the respective award agreement) can range from 0% to 150% of the number presented above.

(4) The restricted stock units are subject to vesting over three years with one third, rounded down to the nearest whole share of stock, vesting in each period.

(5) The dividend equivalent units will vest proportionately with the underlying restricted stock units to which they relate.

(6) The dividend equivalent units will vest proportionately with the underlying performance stock units to which they relate.

**Signature:** /s/ Alexander Baty, Attorney-in-Fact for Brad Martz  
**Date:** 2026-04-07

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**