Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 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 that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

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

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(Print or Type Responses)

1. Name and Address of Reporting Person * Schmitz John 2. Issuer Name and Ticker or Trading Symbol Select Water Solutions, Inc. [WTTR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) President & CEO (Last) (First) (Middle) 1820 N I-35 3. Date of Earliest Transaction (Month/Day/Year) 02/23/2026 (Street) GAINESVILLE, TX 76240 4. If Amendment, Date Original Filed (Month/Day/Year) 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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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 Class A Common Stock 02/23/2026 G(1) 265,250 D $ 0 274,137 I By GRAT(2) Class A Common Stock 02/23/2026 G(1) 265,250 A $ 0 265,250 I By Spouse Class A Common Stock 02/24/2026 A(3) 143,084 A $ 0 1,007,816(4) D Class A Common Stock 02/24/2026 F(5) 66,952 D $13.65 940,864 D Class A Common Stock 274,138(4) I By GRAT(6) Class A Common Stock 13,126 I By B-29 GP, LLC Class A Common Stock 249,243 I By B-29 Investments, LP Class A Common Stock 1,496,626 I By Family Trust Class A Common Stock 31,372 I By Family Trust for Child 1 Class A Common Stock 31,373 I By Family Trust for Child 2 Class A Common Stock 31,373 I By Family Trust for Child 3 Class A Common Stock 31,372 I By Family Trust for Child 4 Class A Common Stock 31,373 I By Family Trust for Child 5 Class A Common Stock 31,373 I By Family Trust for Child 6

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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 (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

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 (Month/Day/Year)

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

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Schmitz John 1820 N I-35 GAINESVILLE, TX 76240	X		President & CEO

Signatures

/s/ Schmitz, John D by Calla Hackler, as Attorney-in-Fact		02/25/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	The transaction reported herein represents a gift of shares of common stock of Select Water Solutions, Inc. (the "Issuer"). This transaction was arranged prior to the commencement of the Issuer's public offering of common stock on February 19, 2026 and is being made pursuant to the lock-up agreement entered into by the Reporting Person and J.P. Morgan Securities LLC and BofA Securities, Inc., as representatives of the underwriters in connection with the offering, which permits bona fide estate planning transfers during the lock-up period.
(2)	Shares are held directly by the Sandra Lee Schmitz 2024 Annuity Trust DTD November 13, 2024, of which the reporting person is the trustee.
(3)	These shares of restricted stock, granted under the Select Water Solutions, Inc. 2024 Equity Incentive Plan, will vest 1/3 on February 24, 2027, 1/3 on February 24, 2028, and 1/3 on February 24, 2029.
(4)	Represents the distribution of shares from a Grantor Retained Annuity Trust (GRAT) as an annuity payment to the reporting person, who is the grantor of the trust.
(5)	Represents shares to be withheld by the Issuer to satisfy tax withholding obligations of the Reporting Person that arose upon the vesting of certain restricted stock.
(6)	Shares are held directly by the John David Schmitz 2024 Annuity Trust DTD November 13, 2024, of which the reporting person is the trustee.

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