Select Water Solutions (NYSE: WTTR) CAO logs PSU vesting and tax share withholding

Rhea-AI Filing Summary

Select Water Solutions, Inc. Chief Accounting Officer Brian Szymanski reported stock-based compensation activity in Class A common stock. He acquired 17,885 shares through the earning of performance share units granted in February 2023, then disposed of 7,843 shares that were withheld to cover tax obligations, leaving 134,752 shares owned directly.

SEC Form 4

FORM 4

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
or Section 30(h) of the Investment Company Act of 1940

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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^*

Szymanski Brian

(Last) (First) (Middle)

1820 N I-35

(Street)

GAINESVILLE TX 76240

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Select Water Solutions, Inc. [ WTTR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Accounting Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/05/2026

4. If Amendment, Date of 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

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	03/05/2026		A(1)		17,885	A	$0.00	142,595	D
Class A Common Stock	03/05/2026		F(2)		7,843	D	$14.03	134,752	D

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 Securities Underlying Derivative Security (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: 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

Explanation of Responses:

1. The reported shares are represented by performance share units ("PSUs") earned pursuant to the terms of a performance share unit award granted on February 24, 2023, to the reporting person for which the performance conditions were satisfied.

2. Represents shares to be withheld by Select Water Solutions, Inc., a Delaware corporation ("the Issuer") to satisfy tax withholding obligations of the reporting person that arose upon vesting of the PSUs.

Remarks:

	/s/ Szymanski, Brian by Calla Hackler, as Attorney-in-Fact	03/09/2026
	** Signature of Reporting Person	Date
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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FAQ

What insider transactions did WTTR executive Brian Szymanski report on this Form 4?

Brian Szymanski reported acquiring 17,885 shares of Class A common stock from performance share units and disposing of 7,843 shares. The disposed shares were withheld by Select Water Solutions, Inc. to satisfy tax withholding obligations arising from the vesting of those units.

Were Brian Szymanski’s WTTR Form 4 transactions open-market purchases or sales?

The Form 4 shows no open-market trades. Shares were acquired through the earning of performance share units, and shares were disposed of only because Select Water Solutions, Inc. withheld 7,843 shares to cover tax liabilities triggered by the PSU vesting event.

How many WTTR shares did Brian Szymanski own after these Form 4 transactions?

After these transactions, Brian Szymanski directly owned 134,752 shares of Select Water Solutions, Inc. Class A common stock. This figure reflects both the 17,885 shares acquired from performance share units and the 7,843 shares withheld to satisfy related tax obligations.

What are the performance share units referenced in Brian Szymanski’s WTTR Form 4?

The performance share units are equity awards granted on February 24, 2023. The Form 4 notes that 17,885 shares were earned when the PSU performance conditions were satisfied, resulting in a share issuance to Brian Szymanski upon vesting of that award.

Why were 7,843 WTTR shares disposed of in Brian Szymanski’s Form 4 filing?

The 7,843 shares were not sold on the market but withheld by the issuer. Select Water Solutions, Inc. retained these shares to pay tax withholding obligations that arose when the performance share units vested and were settled in Class A common stock.

Does Brian Szymanski’s WTTR Form 4 suggest a change in investment sentiment?

The transactions reflect routine equity compensation and tax withholding, not discretionary trading. Shares were acquired through performance share unit vesting and partly withheld for taxes, which is a standard administrative mechanism rather than an expression of changing investment views.