Key facts
- This page summarizes Stephen Tadlock's Form 4 filing for Cactus, Inc. (WHD).
- 10 reported transactions and 4 derivative rows are listed below.
- Accepted by SEC: 12 Mar 2026, 20:33.
Stephen Tadlock - 10 Mar 2026 Form 4 Insider Report for Cactus, Inc. (WHD)
- Reporting relationship
- EVP/CEO Spool Tech/Cactus Intl
- Issuer ticker
- WHD
- Reported as of
- 10 Mar 2026
- Net transaction value
- $0
- SEC form
- 4
- Accepted by SEC
- 12 Mar 2026, 20:33:44 UTC
- Prior SEC filing
- 02 Mar 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Stephen Tadlock, by Will Marsh as Attorney-in-Fact
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Stephen Tadlock filed Form 4 for Cactus, Inc. (WHD) on 12 Mar 2026.
Change
- Previous filing in this sequence was filed on 02 Mar 2026.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0001710396
Primary reporting owner
Tadlock Stephen
- Relationship
- EVP/CEO Spool Tech/Cactus Intl
- Address
- 920 MEMORIAL CITY WAY, SUITE 300, HOUSTON
- Signature
- /s/ Stephen Tadlock, by Will Marsh as Attorney-in-Fact
- Signature date
- 12 Mar 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
WHD
transaction
Class A Common Stock
Options Exercise
- Transaction value
- Shares
- +7,978
- Change %
- +11%
- Price
- Shares after
- 79,752
- Date
- 10 Mar 2026
- Ownership
- Direct
- Footnotes
- F1
WHD
transaction
Class A Common Stock
Tax liability
- Transaction value
- Shares
- -3,140
- Change %
- -3.9%
- Price
- $48.60*
- Shares after
- 76,612
- Date
- 10 Mar 2026
- Ownership
- Direct
- Footnotes
- F2
WHD
transaction
Class A Common Stock
Options Exercise
- Transaction value
- Shares
- +4,027
- Change %
- +5.3%
- Price
- Shares after
- 80,639
- Date
- 10 Mar 2026
- Ownership
- Direct
- Footnotes
- F1
WHD
transaction
Class A Common Stock
Tax liability
- Transaction value
- Shares
- -1,585
- Change %
- -2%
- Price
- $48.60*
- Shares after
- 79,054
- Date
- 10 Mar 2026
- Ownership
- Direct
- Footnotes
- F2
WHD
transaction
Class A Common Stock
Options Exercise
- Transaction value
- Shares
- +4,971
- Change %
- +6.3%
- Price
- Shares after
- 84,025
- Date
- 11 Mar 2026
- Ownership
- Direct
- Footnotes
- F1
WHD
transaction
Class A Common Stock
Tax liability
- Transaction value
- Shares
- -1,957
- Change %
- -2.3%
- Price
- $48.56*
- Shares after
- 82,068
- Date
- 11 Mar 2026
- Ownership
- Direct
- Footnotes
- F2
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
WHD
transaction
Derivative
Restricted Stock Units
Award
- Transaction value
- Shares
- +14,970
- Change %
- +11%
- Price
- $0.000000*
- Shares after
- 148,290
- Date
- 10 Mar 2026
- Ownership
- Direct
- Underlying class
- Class A Common Stock
- Underlying amount
- 14,970
- Exercise price
- Footnotes
- F1, F3
WHD
transaction
Derivative
Restricted Stock Units
Options Exercise
- Transaction value
- Shares
- -7,978
- Change %
- -5.4%
- Price
- $0.000000*
- Shares after
- 140,312
- Date
- 10 Mar 2026
- Ownership
- Direct
- Underlying class
- Class A Common Stock
- Underlying amount
- 7,978
- Exercise price
- Footnotes
- F1, F4
WHD
transaction
Derivative
Restricted Stock Units
Options Exercise
- Transaction value
- Shares
- -4,027
- Change %
- -2.9%
- Price
- $0.000000*
- Shares after
- 136,285
- Date
- 10 Mar 2026
- Ownership
- Direct
- Underlying class
- Class A Common Stock
- Underlying amount
- 4,027
- Exercise price
- Footnotes
- F1, F5
WHD
transaction
Derivative
Restricted Stock Units
Options Exercise
- Transaction value
- Shares
- -4,971
- Change %
- -3.6%
- Price
- $0.000000*
- Shares after
- 131,314
- Date
- 11 Mar 2026
- Ownership
- Direct
- Underlying class
- Class A Common Stock
- Underlying amount
- 4,971
- Exercise price
- Footnotes
- F1, F6
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 6 footnotes
Footnote 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.
Footnote F2
Represents shares withheld by the Company to satisfy tax withholding obligations upon the vesting of previously granted restricted stock units.
Footnote 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.
Footnote 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.
Footnote 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.
Footnote 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.