# EDGAR Filing Document

**Accession Number:** 0001693256
**File Stem:** 0001539285-26-000005
**Filing Date:** 2026-2
**Character Count:** 8304
**Document Hash:** 9579e65ab87514eb7fbf6692b117add0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001539285-26-000005.hdr.sgml**: 20260225

**ACCESSION NUMBER**: 0001539285-26-000005

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260223

**FILED AS OF DATE**: 20260225

**DATE AS OF CHANGE**: 20260225

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Schmitz John
- **CENTRAL INDEX KEY:** 0001539285

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-38066
- **FILM NUMBER:** 26681121

**MAIL ADDRESS:**
- **STREET 1:** C/O SELECT WATER
- **STREET 2:** 1820 N I-35
- **CITY:** GAINESVILLE
- **STATE:** TX
- **ZIP:** 76240
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Select Water Solutions, Inc.
- **CENTRAL INDEX KEY:** 0001693256
- **STANDARD INDUSTRIAL CLASSIFICATION:** OIL, GAS FIELD SERVICES, NBC [1389]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 814561945
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 1820 NORTH I-35
- **CITY:** GAINESVILLE
- **STATE:** TX
- **ZIP:** 76240
- **BUSINESS PHONE:** (940) 668-1818

**MAIL ADDRESS:**
- **STREET 1:** 1820 NORTH I-35
- **CITY:** GAINESVILLE
- **STATE:** TX
- **ZIP:** 76240

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Select Energy Services, Inc.
- **DATE OF NAME CHANGE:** 20161227

### 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>Schmitz John<br><sub>(Last) (First) (Middle)</sub><br>1820 N I-35<br><sub>(Street)</sub><br>GAINESVILLE, TX 76240<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-02-23 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_President & CEO_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Select Water Solutions, Inc. [ WTTR ] | **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 |
| Class A Common Stock | 2026-02-23 |  | G<sup>(1)</sup> |  | 265250.00 | D | $0.00 | 274137.00 | I | By GRAT<sup>(2)</sup> |
| Class A Common Stock | 2026-02-23 |  | G<sup>(1)</sup> |  | 265250.00 | A | $0.00 | 265250.00 | I | By Spouse |
| Class A Common Stock | 2026-02-24 |  | A<sup>(3)</sup> |  | 143084.00 | A | $0.00 | 1007816.00<sup>(4)</sup> | D |  |
| Class A Common Stock | 2026-02-24 |  | F<sup>(5)</sup> |  | 66952.00 | D | $13.65 | 940864.00 | D |  |
| Class A Common Stock |  |  |  |  |  |  |  | 274138.00<sup>(4)</sup> | I | By GRAT<sup>(6)</sup> |
| Class A Common Stock |  |  |  |  |  |  |  | 13126.00 | I | By B-29 GP, LLC |
| Class A Common Stock |  |  |  |  |  |  |  | 249243.00 | I | By B-29 Investments, LP |
| Class A Common Stock |  |  |  |  |  |  |  | 1496626.00 | I | By Family Trust |
| Class A Common Stock |  |  |  |  |  |  |  | 31372.00 | I | By Family Trust for Child 1 |
| Class A Common Stock |  |  |  |  |  |  |  | 31373.00 | I | By Family Trust for Child 2 |
| Class A Common Stock |  |  |  |  |  |  |  | 31373.00 | I | By Family Trust for Child 3 |
| Class A Common Stock |  |  |  |  |  |  |  | 31372.00 | I | By Family Trust for Child 4 |
| Class A Common Stock |  |  |  |  |  |  |  | 31373.00 | I | By Family Trust for Child 5 |
| Class A Common Stock |  |  |  |  |  |  |  | 31373.00 | I | By Family Trust for Child 6 |

---

## 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 |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

---

### Footnotes:

(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.

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

### 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.**