SEC ownership of Cactus, Inc.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001699136.

Comparable stake leader

BlackRock, Inc.

Disclosed value leader

BlackRock, Inc.

Comparable rows

50/50

Latest evidence

30 Jun 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
50 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
30 Jun 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001699136
Issuer location
Houston, TX

Ownership snapshot

Top shareholders of Cactus, Inc. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
30 Jun 2026
13F 13D/G 3/4/5 Lead comparable stake: 14% 13D/G row: BlackRock, Inc. Showing 1-8 of 50 holder rows.

Quick read

BlackRock, Inc. leads the comparable SEC ownership view at 14%.

50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership Top 5
BlackRock, Inc. 14%
Cactus WH Enterprises, LLC 12%
Boston Partners 6.4%
WELLINGTON MANAGEMENT GROUP LLP 5.8%
FMR LLC 3.5%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
BlackRock, Inc.
13F 13D/G
Company
14%
from 13D/G
$546,357,607
10,664,798 shares
30 Jun 2026
Cactus WH Enterprises, LLC
13D/G 3/4/5
Joel Bender · 10%+ Owner
12%
$493,304,156
9,879,915 shares
-$21,820,908 31 Dec 2025
Boston Partners
13D/G 13F
Company
6.4%
$240,453,421
4,470,225 shares
$0 30 Jun 2026
WELLINGTON MANAGEMENT GROUP LLP
13D/G 13F
Company
5.8%
$197,920,573
3,963,961 shares
$0 31 Dec 2025
FMR LLC
13D/G 13F
Company
3.5%
$130,600,025
2,403,387 shares
-$110,388,830 31 Mar 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
13F
Company
13F
6.1%
$218,468,235
4,264,459 shares
30 Jun 2026
STATE STREET CORP
13F
Company
13F
4.5%
$161,314,174
3,151,022 shares
30 Jun 2026
VANGUARD CAPITAL MANAGEMENT LLC
13F
Company
13F
4.5%
$160,026,178
3,123,681 shares
30 Jun 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$51,270,559.

Buys
$0
Insiders: 0
Sells
$51,270,559
Insiders: 8
Net
-$51,270,559
Shares: -913,011
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 913,011
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 480,633 $0 $29,515,388 -$29,515,388
3-6 0 422,206 $0 $21,334,864 -$21,334,864
6-9 0 0 $0 $0 $0
9-12 0 10,172 $0 $420,307 -$420,307

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-19 of 19 reporting-owner rows connected to Cactus, Inc.. Open a relationship link for the CIK-to-CIK filing trail.

Rows
19
Largest Forms 3/4/5 holder
Scott Bender
Net 12M change
-$51,270,560
Latest report
06 Aug 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Scott Bender Chairman and CEO, Director, 10%+ Owner $463,911,871 -$22,155,752 -4.6% Mixed 06 Aug 2026
Joel Bender President, Director, 10%+ Owner $459,695,842 -$22,155,752 -4.6% Mixed 06 Aug 2026
Cactus WH Enterprises, LLC 10%+ Owner $454,151,070 Mixed 06 Aug 2026
Steven Bender COO, EVP and CEO-SpoolableTech $11,735,696 -$1,691,223 -13% Mixed 06 Aug 2026
Stephen Tadlock EVP/CEO Cactus Intl $7,934,760 -$2,453,506 -24% Mixed 03 Aug 2026
William D. Marsh GC, EVP and Secretary $2,473,873 -$896,317 -27% Mixed 05 Aug 2026
David John Isaac GC and VP of Administration $1,961,113 Mixed 11 Mar 2022
Alan Semple Director $1,831,747 -$577,864 -24% Mixed 12 May 2026
Tombar Tymothi O Director $1,687,705 Mixed 10 Mar 2026
John A. Odonnell Director $1,306,979 -$661,306 -34% Mixed 05 Aug 2026
Bruce M. Rothstein Director $1,133,749 Mixed 10 Mar 2026
Jay A. Nutt EVP and CFO $1,074,318 Mixed 03 Jun 2026
Melissa Law Director $1,035,281 Mixed 10 Mar 2026
Michael Y. Mcgovern Director $1,021,844 -$678,840 -40% Mixed 12 May 2026
Gary L. Rosenthal Director $1,019,992 Mixed 10 Mar 2026
Donna L. Anderson VP & Chief Accounting Officer $582,687 Mixed 11 Mar 2024
Tana Leigh Utley Director $11,699 Mixed 12 May 2026
Joseph Elkhoury Director Mixed 03 Aug 2026
Alan J. Keifer Interim CFO Mixed 13 Nov 2023

Recent insider transactions for Cactus, Inc.

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
Steven Bender WHD Class A Common Stock Sale -20.1% $1,691,222 $67.65 -25,000 99,241 07 Aug 2026 Direct
Cactus WH Enterprises, LLC WHD Class B Common Stock Other -0.27% -25,000 9,261,249 06 Aug 2026 Direct
Cactus WH Enterprises, LLC WHD Units Other -0.27% -25,000 9,261,249 06 Aug 2026 Direct
Scott Bender WHD Class B Common Stock Other -0.27% -25,000 9,261,249 06 Aug 2026 See Footnote
Scott Bender WHD Units Other -0.27% -25,000 9,261,249 06 Aug 2026 See Footnote
Joel Bender WHD Class B Common Stock Other -0.27% -25,000 9,261,249 06 Aug 2026 See Footnote
Joel Bender WHD Units Other -0.27% -25,000 9,261,249 06 Aug 2026 See Footnote
Steven Bender WHD Class A Common Stock Other 25.2% 25,000 124,241 06 Aug 2026 Direct
Steven Bender WHD Class B Common Stock Disposed to Issuer -100% -25,000 0 06 Aug 2026 Direct
Steven Bender WHD Class B Common Stock Award 25,000 25,000 06 Aug 2026 Direct
Steven Bender WHD Units Other 0 0 06 Aug 2026 Direct
Steven Bender WHD Units Award 0 0 06 Aug 2026 Direct
John A. Odonnell WHD Class A Common Stock Sale -35.7% $661,306 $66.13 -10,000 17,990 05 Aug 2026 Direct
William D. Marsh WHD Class A Common Stock Sale -27.8% $476,010 $66.32 -7,178 18,665 05 Aug 2026 Direct
Joseph Elkhoury WHD Restricted Stock Units Award 1,291 1,291 03 Aug 2026 Direct
Cactus WH Enterprises, LLC WHD Class B Common Stock Other -1.07% -100,000 9,286,249 03 Aug 2026 Direct
Cactus WH Enterprises, LLC WHD Units Other -1.07% -100,000 9,286,249 03 Aug 2026 Direct
Stephen Tadlock WHD Class A Common Stock Sale -47.1% $2,453,506 $63.80 -38,455 43,178 03 Aug 2026 Direct
Stephen Tadlock WHD Class A Common Stock Gift -0.53% -435 81,633 03 Aug 2026 Direct
Scott Bender WHD Class A Common Stock Sale -45.4% $6,388,800 $63.89 -100,000 120,527 03 Aug 2026 Direct
Scott Bender WHD Class A Common Stock Other 83% 100,000 220,527 03 Aug 2026 Direct
Scott Bender WHD Class B Common Stock Disposed to Issuer -1.05% -100,000 9,386,249 03 Aug 2026 See Footnote
Scott Bender WHD Class B Common Stock Award 1.08% 100,000 9,386,249 03 Aug 2026 See Footnote
Scott Bender WHD Class B Common Stock Other -1.07% -100,000 9,286,249 03 Aug 2026 See Footnote
Scott Bender WHD Units Award 1.08% 100,000 9,386,249 03 Aug 2026 See Footnote
Scott Bender WHD Units Other -2.11% -200,000 9,286,249 03 Aug 2026 See Footnote
Joel Bender WHD Class A Common Stock Sale -70.7% $6,388,800 $63.89 -100,000 41,519 03 Aug 2026 Direct
Joel Bender WHD Class A Common Stock Other 240.8% 100,000 141,519 03 Aug 2026 Direct
Joel Bender WHD Class B Common Stock Disposed to Issuer -1.05% -100,000 9,386,249 03 Aug 2026 See Footnote
Joel Bender WHD Class B Common Stock Award 1.08% 100,000 9,386,249 03 Aug 2026 See Footnote
Joel Bender WHD Class B Common Stock Other -1.07% -100,000 9,286,249 03 Aug 2026 See Footnote
Joel Bender WHD Units Award 1.08% 100,000 9,386,249 03 Aug 2026 See Footnote
Joel Bender WHD Units Other -2.11% -200,000 9,286,249 03 Aug 2026 See Footnote
Joel Bender WHD Class A Common Stock Sale -67.6% $4,995,481 $57.62 -86,700 41,519 30 Jul 2026 Direct
Scott Bender WHD Class A Common Stock Sale -41.8% $4,995,481 $57.62 -86,700 120,527 30 Jul 2026 Direct
Cactus WH Enterprises, LLC WHD Class B Common Stock Other -1.05% -100,000 9,386,249 27 Jul 2026 Direct
Cactus WH Enterprises, LLC WHD Units Other -1.05% -100,000 9,386,249 27 Jul 2026 Direct
Scott Bender WHD Class A Common Stock Sale -6.03% $732,391 $55.07 -13,300 207,227 27 Jul 2026 Direct
Scott Bender WHD Class A Common Stock Other 83% 100,000 220,527 27 Jul 2026 Direct
Scott Bender WHD Class B Common Stock Disposed to Issuer -1.05% -100,000 9,386,249 27 Jul 2026 See Footnote
Scott Bender WHD Class B Common Stock Award 1.07% 100,000 9,486,249 27 Jul 2026 See Footnote
Scott Bender WHD Class B Common Stock Other -1.05% -100,000 9,386,249 27 Jul 2026 See Footnote
Scott Bender WHD Units Award 1.07% 100,000 9,486,249 27 Jul 2026 See Footnote
Scott Bender WHD Units Other -2.09% -200,000 9,386,249 27 Jul 2026 See Footnote
Joel Bender WHD Class A Common Stock Sale -9.4% $732,391 $55.07 -13,300 128,219 27 Jul 2026 Direct
Joel Bender WHD Class A Common Stock Other 240.8% 100,000 141,519 27 Jul 2026 Direct
Joel Bender WHD Class B Common Stock Disposed to Issuer -1.05% -100,000 9,386,249 27 Jul 2026 See Footnote
Joel Bender WHD Class B Common Stock Award 1.07% 100,000 9,486,249 27 Jul 2026 See Footnote
Joel Bender WHD Class B Common Stock Other -1.05% -100,000 9,386,249 27 Jul 2026 See Footnote
Joel Bender WHD Units Award 1.07% 100,000 9,486,249 27 Jul 2026 See Footnote
* marks a reported price that did not pass the local price check.
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