| Delaware | 001-38066 | 81-4561945 |
| (State or Other Jurisdiction of Incorporation) | (Commission File Number) | (IRS Employer Identification No.) |
| ☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) |
| ☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) |
| ☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |
| ☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) |
| Title of each class | Ticker symbol(s) | Name of each exchange on which registered | ||
| Class A common stock, $0.01 par value | WTTR | New York Stock Exchange |
| (d) | Exhibits. |
| Exhibit No. | Description | |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document). |
| Dated: June 1, 2026 | ||
| | SELECT WATER SOLUTIONS, INC. | |
| By: | /s/ Robert A. Wilson | |
| Robert A. Wilson | ||
| Senior Vice President, General Counsel, and | ||
| Chief Compliance Officer | ||