Select Water Solutions, Inc. — Director's Dealing 2026

Feb 25, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Select Water Solutions, Inc. (WTTR)
CIK: 0001693256
Period of Report: 2026-02-23

Reporting Person: Schmitz John (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-23	Class A Common Stock	G	265250.00	$0.00	Disposed	274137.00	Indirect
2026-02-23	Class A Common Stock	G	265250.00	$0.00	Acquired	265250.00	Indirect
2026-02-24	Class A Common Stock	A	143084.00	$0.00	Acquired	1007816.00	Direct
2026-02-24	Class A Common Stock	F	66952.00	$13.65	Disposed	940864.00	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Class A Common Stock	274138.00	Indirect
Class A Common Stock	13126.00	Indirect
Class A Common Stock	249243.00	Indirect
Class A Common Stock	1496626.00	Indirect
Class A Common Stock	31372.00	Indirect
Class A Common Stock	31373.00	Indirect
Class A Common Stock	31373.00	Indirect
Class A Common Stock	31372.00	Indirect
Class A Common Stock	31373.00	Indirect
Class A Common Stock	31373.00	Indirect

Footnotes

F1: 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.

F2: Shares are held directly by the Sandra Lee Schmitz 2024 Annuity Trust DTD November 13, 2024, of which the reporting person is the trustee.

F3: 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.

F4: 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.

F5: 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.

F6: Shares are held directly by the John David Schmitz 2024 Annuity Trust DTD November 13, 2024, of which the reporting person is the trustee.