Sec Form 4 Filing - Matteson Mark R @ Suncrete, Inc. - 2026-04-20

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Matteson Mark R 2. Issuer Name and Ticker or Trading Symbol Suncrete, Inc. [ RMIX] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 5420 LBJ FREEWAY, SUITE 950 3. Date of Earliest Transaction (MM/DD/YY) 04/20/2026 (Street) DALLAS, TX75240 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Class B Common Stock ( 1 ) ( 2 ) 04/20/2026 A 96,000 ( 3 ) ( 1 )( 2 ) ( 1 )( 2 ) Class A Common Stock 96,000 $ 0 96,000 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Matteson Mark R 5420 LBJ FREEWAY, SUITE 950 DALLAS, TX75240 X Signatures /s/ Mark R. Matteson 04/22/2026 Signature of Reporting Person Date

Explanation of Responses:

( 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.

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).

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