Cactus, Inc. — Board/Management Information 2026

Mar 27, 2026

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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FORM 8-K

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CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(D) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): March 24, 2026

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Cactus, Inc.

(Exact name of registrant as specified in its charter)

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Delaware	001-38390	35-2586106
(State or other jurisdiction of incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

920 Memorial City Way, Suite 300

Houston , Texas 77024

(Address of principal executive offices)

(Zip Code)

( 713 ) 626-8800

(Registrant’s telephone number, including area code)

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Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ 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))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Class A Common Stock, par value $0.01	WHD	New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On March 24, 2026, Bruce Rothstein, a director of Cactus, Inc. (the “Company”), advised the Company that he will not stand for re-election at the Company’s 2026 Annual Meeting of Stockholders. Mr. Rothstein’s decision not to stand for re-election is not due to any disagreement with the Company on any matter relating to the Company's operations, policies or practices. The Company’s Board of Directors has decreased the size of the Board to 8 directors effective as of immediately before the Company’s 2026 Annual Meeting of Stockholders.

Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

March 27, 2026	Cactus, Inc. — By:	/s/ Jay A. Nutt
Date	Name:	Jay A. Nutt
	Title:	Executive Vice President and Chief Financial Officer