Cactus (NYSE: WHD) director granted 2,559 RSUs as prior award vests

Rhea-AI Filing Summary

Cactus, Inc. director Bruce M. Rothstein reported equity compensation activity. On March 10, 2026, he was granted 2,559 restricted stock units, which vest on the first anniversary of the grant date. These units represent a right to receive Class A common shares upon vesting.

On the same date, 2,524 restricted stock units granted on March 10, 2025 vested and were exercised, delivering 2,524 shares of Class A common stock at no cash cost. Following these transactions, he directly holds 17,817 Class A common shares and 5,083 restricted stock units.

Insider Trade Summary

2,524 shares exercised/converted

Mixed 3 txns

Insider Rothstein Bruce M

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units	2,559	$0.00	--
Exercise	Restricted Stock Units	2,524	$0.00	--
Exercise	Class A Common Stock	2,524	$0.00	--

Holdings After Transaction: Restricted Stock Units — 5,083 shares (Direct); Class A Common Stock — 17,817 shares (Direct)

Footnotes (1)

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. On March 10, 2026, the reporting person was granted 2,559 restricted stock units, vesting on the first anniversary of the grant date. On March 10, 2025, the reporting person was granted 2,524 restricted stock units, vesting on the first anniversary of the grant date.

Form 4 Insider Transactions: What Each Field Means →

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^*

Rothstein Bruce M

(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)	17,817	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/ Bruce Rothstein, 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 (WHD) director Bruce M. Rothstein report?

Bruce M. Rothstein reported equity compensation activity, not open‑market trades. He received a grant of 2,559 restricted stock units and exercised 2,524 previously granted units, which delivered 2,524 shares of Class A common stock at no cash cost.

How many restricted stock units did the Cactus (WHD) director receive and when do they vest?

Rothstein was granted 2,559 restricted stock units on March 10, 2026. According to the disclosure, these units vest on the first anniversary of the grant date, after which one share of Class A common stock will be delivered for each vested unit.

What happened to the 2,524 restricted stock units previously granted to the Cactus (WHD) director?

The 2,524 restricted stock units granted on March 10, 2025 vested on March 10, 2026 and were exercised. Upon vesting, they converted into 2,524 shares of Cactus Class A common stock, increasing Rothstein’s directly held share count without involving an open‑market purchase.

How many Cactus (WHD) Class A common shares does Bruce M. Rothstein hold after these transactions?

After the reported transactions, Rothstein directly holds 17,817 shares of Cactus Class A common stock. This reflects the addition of 2,524 shares from the vesting and exercise of restricted stock units granted in March 2025, combined with his prior holdings.

How many restricted stock units in Cactus (WHD) does the director hold after the Form 4 events?

Following the grant and vesting events, Rothstein holds 5,083 restricted stock units. This total reflects the new grant of 2,559 units on March 10, 2026, net of the 2,524 units that vested and converted into Class A common shares on the same date.

Were there any open‑market buys or sells in the Cactus (WHD) Form 4 filing?

No open‑market purchases or sales were reported. All transactions involved equity compensation: a grant of restricted stock units and the vesting and exercise of existing units into Class A common stock, both at a stated price of $0.0000 per share.