# EDGAR Filing Document

**Accession Number:** 0001739134
**File Stem:** 0001104659-26-046958
**Filing Date:** 2026-4
**Character Count:** 7608
**Document Hash:** 056aea0464bd702f65209b0d7113e1d4
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-26-046958.hdr.sgml**: 20260422

**ACCESSION NUMBER**: 0001104659-26-046958

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260420

**FILED AS OF DATE**: 20260422

**DATE AS OF CHANGE**: 20260422

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Matteson Mark R
- **CENTRAL INDEX KEY:** 0001739134

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-43227
- **FILM NUMBER:** 26884937

**MAIL ADDRESS:**
- **STREET 1:** 290 HEALTHWEST DRIVE, SUITE 2
- **CITY:** DOTHAN
- **STATE:** AL
- **ZIP:** 36303
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Suncrete, Inc.
- **CENTRAL INDEX KEY:** 0002094433
- **STANDARD INDUSTRIAL CLASSIFICATION:** CONCRETE PRODUCTS, EXCEPT BLOCK & BRICK [3272]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 394989597
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 817 E. 4TH STREET
- **CITY:** TULSA
- **STATE:** OK
- **ZIP:** 74120
- **BUSINESS PHONE:** 918-355-5700

**MAIL ADDRESS:**
- **STREET 1:** 817 E. 4TH STREET
- **CITY:** TULSA
- **STATE:** OK
- **ZIP:** 74120

### 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>Matteson Mark R<br><sub>(Last) (First) (Middle)</sub><br>5420 LBJ FREEWAY, SUITE 950<br><sub>(Street)</sub><br>DALLAS, TX 75240<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-04-20 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[ ] Officer (give title below) [ ] Other (specify below)<br>_ _ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Suncrete, Inc. [ RMIX ] | **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 |
|  |  |  |  |  |  |  |  |  |  |  |

---

## 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 |
| Class B Common Stock | <sup>(1)(2)</sup> | 2026-04-20 |  | A |  | 96000<sup>(3)</sup> |  | <sup>(1)(2)</sup> | <sup>(1)(2)</sup> | Class A Common Stock | 96000 | $0 | 96000 | D |  |

---

### Footnotes:

(1) Each share of Class B Common Stock, par value $0.0001 per share ("Class B Common Stock"), of Suncrete, Inc. (the "Issuer") is convertible at any time at the option of the holder thereof into one share of Class A Common Stock, par value $0.0001 per share, of the Issuer ("Class A Common Stock"). In addition, upon the election of the holders of a majority of the then-outstanding shares of Class B Common Stock, all outstanding shares of Class B Common Stock will be converted into shares of Class A Common Stock. Further, each share of Class B Common Stock will automatically convert into one share of Class A Common Stock upon any transfer, whether or not for value, except upon certain transfers described in the Issuer's amended and restated certificate of incorporation. The holders of Class A Common Stock and Class B Common Stock vote as a single class on all matters submitted to a vote of stockholders.

(2) The holders of Class A Common Stock are entitled to one vote per share and the holders of the Class B Common Stock are entitled to 10 votes per share. The shares of Class B Common Stock do not expire.

(3) Represents 96,000 restricted shares of Class B Common Stock with time-based vesting criteria granted to Mr. Matteson under the Suncrete, Inc. 2026 Omnibus Incentive Plan that vest as follows: (i) 64,000 shares on April 20, 2028, and (ii) 32,000 shares on April 20, 2029; provided, that Mr. Matteson is providing services to the Issuer through each such date. Under the terms of the award agreement, Mr. Matteson has sole voting power with respect to the shares.

**Remarks:**
On April 8, 2026, Mr. Matteson filed a Form 3 which reported that he may be deemed to beneficially own securities of the Issuer directly held by Dothan Concrete Investors, LLC due to his position as an executive officer of SunTx Capital Management Corp. Mr. Matteson was not an executive officer of SunTx Management Corp. as of April 8, 2026, and does not beneficially own any securities of the Issuer directly held by SunTx Capital Management Corp. As a result, such securities are not included on this Form 4.

**Signature:** /s/ Mark R. Matteson  
**Date:** 2026-04-22

### 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.**