Stephen Tadlock - 10 Mar 2026 Form 4 Insider Report for Cactus, Inc. (WHD)

Role
EVP/CEO Spool Tech/Cactus Intl
Signature
/s/ Stephen Tadlock, by Will Marsh as Attorney-in-Fact
Issuer symbol
WHD
Transactions as of
10 Mar 2026
Net transactions value
$0
Form type
4
Filing time
12 Mar 2026, 20:33:44 UTC
Previous filing
02 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Tadlock Stephen EVP/CEO Spool Tech/Cactus Intl 920 MEMORIAL CITY WAY, SUITE 300, HOUSTON /s/ Stephen Tadlock, by Will Marsh as Attorney-in-Fact 12 Mar 2026 0001710396

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction WHD Class A Common Stock Options Exercise +7,978 +11% 79,752 10 Mar 2026 Direct F1
transaction WHD Class A Common Stock Tax liability -3,140 -3.9% $48.60* 76,612 10 Mar 2026 Direct F2
transaction WHD Class A Common Stock Options Exercise +4,027 +5.3% 80,639 10 Mar 2026 Direct F1
transaction WHD Class A Common Stock Tax liability -1,585 -2% $48.60* 79,054 10 Mar 2026 Direct F2
transaction WHD Class A Common Stock Options Exercise +4,971 +6.3% 84,025 11 Mar 2026 Direct F1
transaction WHD Class A Common Stock Tax liability -1,957 -2.3% $48.56* 82,068 11 Mar 2026 Direct F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction WHD Restricted Stock Units Award +14,970 +11% $0.000000* 148,290 10 Mar 2026 Class A Common Stock 14,970 Direct F1, F3
transaction WHD Restricted Stock Units Options Exercise -7,978 -5.4% $0.000000* 140,312 10 Mar 2026 Class A Common Stock 7,978 Direct F1, F4
transaction WHD Restricted Stock Units Options Exercise -4,027 -2.9% $0.000000* 136,285 10 Mar 2026 Class A Common Stock 4,027 Direct F1, F5
transaction WHD Restricted Stock Units Options Exercise -4,971 -3.6% $0.000000* 131,314 11 Mar 2026 Class A Common Stock 4,971 Direct F1, F6
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 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.
F2 Represents shares withheld by the Company to satisfy tax withholding obligations upon the vesting of previously granted restricted stock units.
F3 On March 10, 2026, the reporting person was granted 14,970 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date.
F4 On March 10, 2023, the reporting person was granted 23,932 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date.
F5 On March 10, 2025, the reporting person was granted 12,080 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date.
F6 On March 11, 2024, the reporting person was granted 14,915 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date.