Cactus (NYSE: WHD) director granted RSUs and converts prior units to shares

Rhea-AI Filing Summary

Cactus, Inc. director Gary L. Rosenthal reported equity compensation and a routine option-style exercise. He received a grant of 2,559 restricted stock units on Class A common stock on March 10, 2026, which vest on the first anniversary of the grant date. On the same date, 2,524 restricted stock units granted on March 10, 2025 vested and were exercised into 2,524 shares of Class A common stock. Following these transactions, he holds 15,823 shares of Class A common stock and 5,083 restricted stock units 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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Rosenthal Gary L

(Last) (First) (Middle)

920 MEMORIAL CITY WAY

SUITE 300

(Street)

HOUSTON TX 77024

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Cactus, Inc. [ WHD ]

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

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

3. Date of Earliest Transaction (Month/Day/Year)
03/10/2026

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	03/10/2026		M		2,524	A	(1)	15,823	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
Restricted Stock Units	(1)	03/10/2026		A		2,559		(2)	(2)	Class A Common Stock	2,559	$0	5,083	D
Restricted Stock Units	(1)	03/10/2026		M			2,524	(3)	(3)	Class A Common Stock	2,524	$0	2,559	D

Explanation of Responses:

1. Restricted stock units represent a contingent right to receive Class A common stock. Upon vesting, one share of Class A common stock will be delivered for each vested restricted stock unit.

2. On March 10, 2026, the reporting person was granted 2,559 restricted stock units, vesting on the first anniversary of the grant date.

3. On March 10, 2025, the reporting person was granted 2,524 restricted stock units, vesting on the first anniversary of the grant date.

Remarks:

	/s/ Gary Rosenthal, by William Marsh as Attorney-in-fact	03/12/2026
	** 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).
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.

FAQ

What insider transactions did Cactus, Inc. (WHD) director Gary L. Rosenthal report?

Gary L. Rosenthal reported equity awards and a derivative exercise. He received 2,559 restricted stock units on March 10, 2026, and 2,524 restricted stock units granted March 10, 2025 vested and converted into 2,524 shares of Class A common stock.

How many restricted stock units did WHD director Gary L. Rosenthal receive in the latest grant?

He received 2,559 restricted stock units on March 10, 2026. These units represent a contingent right to receive Class A common stock, with one share delivered for each unit when it vests on the first anniversary of the grant date.

When do Gary L. Rosenthal’s newly granted WHD restricted stock units vest?

The 2,559 restricted stock units granted on March 10, 2026 vest on the first anniversary of that grant date. Once vested, one share of Cactus Class A common stock will be delivered for each vested restricted stock unit, according to the filing footnotes.

What happened to Gary L. Rosenthal’s March 10, 2025 WHD restricted stock unit grant?

The 2,524 restricted stock units granted on March 10, 2025 vested on March 10, 2026. Upon vesting, they were exercised and converted into 2,524 shares of Cactus Class A common stock at a stated price of $0.00 per share in the Form 4 data.

What are Gary L. Rosenthal’s Cactus, Inc. holdings after these Form 4 transactions?

After the reported transactions, he directly holds 15,823 shares of Class A common stock and 5,083 restricted stock units. The restricted stock units continue to represent contingent rights to receive Class A common stock upon future vesting events, according to the filing details.

Are Gary L. Rosenthal’s recent WHD Form 4 transactions open-market purchases or compensation awards?

They are compensation-related awards and exercises, not open-market trades. The filing shows an "A" code grant of 2,559 restricted stock units and "M" code exercises converting 2,524 previously granted units into Class A common stock at a $0.00 exercise price.