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PTENPatterson Uti Energy Inc · Insider ownership research

Patterson Uti Energy Inc insiders sold $33.9M in the past 12 months. How much of their stake is that?

9% was sold under disclosed trading plans, 91% with no plan disclosed. The largest seller, Robert Drummond Jr. (Director), sold $12.1M.Share-of-stake figures for this company are being verified and will be added when that check is finished. Why

Updated Oct 16, 2026 from SEC filings · covers Oct 17, 2025 to Oct 16, 2026
$30.9M
sold with no plan disclosed, past 12 months
8.8%
of sales were under disclosed trading plans, past 12 months
8 of 15
officers and directors sold shares, past 12 months
Is this normal? More than usual: about 5x the 5-year average. 8 insiders sold; the average is 3 a year. Year by year
Latest filing: Filed Sep 21 for a sale on Sep 18. William Hendricks Jr. sold 250K shares ($3.0M) under a disclosed plan. Filing
SEC ownership filings: 38 filed in the 12 months to Oct 16, 2026; 572 on record since Oct 31, 2002 · See the evidence

What stands out

Five insiders sold $30.5M with no disclosed plan: Robert Drummond Jr. ($12.1M), William Hendricks Jr. ($8.5M) and James Stewart ($6.6M), plus 2 more. The filings don't state a reason.Robert Drummond Jr.: largest such sale, May 1, 2026 · William Hendricks Jr.: largest such sale, Sep 2, 2026 · James Stewart: largest such sale, Aug 25, 2026

A share of stake is shown for 0 of the 8 officers and directors who sold. 15 are left out

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Left out: William Hendricks Jr., James Stewart, Robert Drummond Jr., Kenneth Berns, Charles Smith, James Holcomb, Seth Wexler, Curtis Huff, Gary Halverson, Amy Nelson, Janeen Judah, Tiffany Cepak, Forrest Robinson, Julie Robertson and Cesar Jaime (share of stake is being verified).
Disclosed company stock is not an insider's whole wealth.

Who sold, and how much of their stake

Officers and directors, past 12 months. Their share of stake is being verified and is not shown yet; amounts and trading plans are below.

Robert Drummond Jr.
Director
Not confirmed
Share of stake not shown: share of stake is being verified. Why
$12.1MNo plan disclosed
William Hendricks Jr.
President & CEO, Director
Not confirmed
Share of stake not shown: share of stake is being verified. Why
$11.5M26% planned 74% no plan disclosed
James Stewart
Director
Not confirmed
Share of stake not shown: share of stake is being verified. Why
$6.6MNo plan disclosed
James Holcomb
EVP & Chief Operating Officer
Not confirmed
Share of stake not shown: share of stake is being verified. Why
$1.7MNo plan disclosed
Seth Wexler
EVP, General Counsel&Secretary
Not confirmed
Share of stake not shown: share of stake is being verified. Why
$1.5MNo plan disclosed
All 8 sellers

Selling by month

Officers and directors, Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.

Disclosed planNo plan disclosedOne dollar scale for every month; the tallest bar is labeled
OctNovDec 2025: $4.2M no plan disclosedDecJanFeb 2026: $3.3M no plan disclosedFebMar 2026: $1.8M no plan disclosedMarAprMay 2026: $9.4M no plan disclosedMayJun 2026: $2.5M no plan disclosedJunJulAug 2026: $2.4M no plan disclosedAugSep 2026: $3.0M under a disclosed planSep 2026: $7.3M no plan disclosed$10.3MSepOct

Recent activity

Past 30 days, Sep 17, 2026 to Oct 16, 2026
Sep 18, 2026William Hendricks Jr. sold 250K shares ($3.0M) under a disclosed trading plan.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
William Hendricks Jr.
President & CEO, Director
250,000$11.91n/an/aSep 18, 2026Sep 21, 2026

"% of total stake" is the shares in an event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings are not confirmed, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Common questions

Is the Patterson Uti Energy Inc CEO selling stock?

Yes. William Hendricks Jr. sold 950K shares ($11.5M) in the past 12 months, 26% of it under a trading plan disclosed in the filings.

Why are Patterson Uti Energy Inc insiders selling?

Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 9% of sales by value ran under 10b5-1 trading plans disclosed in the filings and 91% had no disclosed plan. A trading plan schedules sales in advance.

Are any Patterson Uti Energy Inc insiders buying?

No. Officers and directors reported no purchases in the past 12 months.

The evidence

Who sold8 officers and directors: amount, % of holdings, trading plan
Who soldAmount% of holdingsTrading plan
Robert Drummond Jr.
Director
$12.1M
1.15M shares
Not confirmed
share of stake is being verified. Why
No plan disclosed
William Hendricks Jr.
President & CEO, Director
$11.5M
950K shares
Not confirmed
share of stake is being verified. Why
26% under a disclosed plan 74% no plan disclosed
James Stewart
Director
$6.6M
925K shares
Not confirmed
share of stake is being verified. Why
No plan disclosed
James Holcomb
EVP & Chief Operating Officer
$1.7M
150K shares
Not confirmed
share of stake is being verified. Why
No plan disclosed
Seth Wexler
EVP, General Counsel&Secretary
$1.5M
120K shares
Not confirmed
share of stake is being verified. Why
No plan disclosed
Forrest Robinson
Chief Accounting Officer
$164K
14K shares
Not confirmed
share of stake is being verified. Why
No plan disclosed
Cesar Jaime
Director
$123K
10K shares
Not confirmed
share of stake is being verified. Why
No plan disclosed
Tiffany Cepak
Director
$106K
12K shares
Not confirmed
share of stake is being verified. Why
No plan disclosed
The full ownership picture0 of 15 officers and directors confirmed

Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.

InsiderHeld Oct 16, 2025SoldHeld Oct 16, 2026Still held
William Hendricks Jr.
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for William Hendricks Jr. are complete.
President & CEO, Director
n/a−950Kn/an/a
Vesting, gifts, unvested awards and holding lines for William Hendricks Jr.

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for William Hendricks Jr. are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
−135Kwithheld by the company for taxes
James Stewart
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for James Stewart are complete.
Director
n/a−925Kn/an/a
Vesting, gifts, unvested awards and holding lines for James Stewart

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for James Stewart are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
Robert Drummond Jr.
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. See the filing Sales and other transactions for Robert Drummond Jr. are complete.
Director
n/a−1.15Mn/an/a
Vesting, gifts, unvested awards and holding lines for Robert Drummond Jr.

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Robert Drummond Jr. are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
Kenneth Berns
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Kenneth Berns are complete.
Executive Vice President
n/a0n/an/a
Vesting, gifts, unvested awards and holding lines for Kenneth Berns

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Kenneth Berns are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
−36Kwithheld by the company for taxes
Charles Smith
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Charles Smith are complete.
EVP & Chief Financial Officer
n/a0n/an/a
Vesting, gifts, unvested awards and holding lines for Charles Smith

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Charles Smith are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
−39Kwithheld by the company for taxes
James Holcomb
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for James Holcomb are complete.
EVP & Chief Operating Officer
n/a−150Kn/an/a
Vesting, gifts, unvested awards and holding lines for James Holcomb

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for James Holcomb are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
−36Kwithheld by the company for taxes
Seth Wexler
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Seth Wexler are complete.
EVP, General Counsel&Secretary
n/a−120Kn/an/a
Vesting, gifts, unvested awards and holding lines for Seth Wexler

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Seth Wexler are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
−30Kwithheld by the company for taxes
Curtis Huff
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. See the filing Sales and other transactions for Curtis Huff are complete.
Director
n/a0n/an/a
Vesting, gifts, unvested awards and holding lines for Curtis Huff

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Curtis Huff are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
Gary Halverson
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. See the filing Sales and other transactions for Gary Halverson are complete.
Director
n/a0n/an/a
Vesting, gifts, unvested awards and holding lines for Gary Halverson

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Gary Halverson are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
Amy Nelson
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. See the filing Sales and other transactions for Amy Nelson are complete.
Director
n/a0n/an/a
Vesting, gifts, unvested awards and holding lines for Amy Nelson

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Amy Nelson are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
Janeen Judah
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. See the filing Sales and other transactions for Janeen Judah are complete.
Director
n/a0n/an/a
Vesting, gifts, unvested awards and holding lines for Janeen Judah

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Janeen Judah are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
Tiffany Cepak
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. See the filing Sales and other transactions for Tiffany Cepak are complete.
Director
n/a−12Kn/an/a
Vesting, gifts, unvested awards and holding lines for Tiffany Cepak

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Tiffany Cepak are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
Forrest Robinson
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. Sales and other transactions for Forrest Robinson are complete.
Chief Accounting Officer
n/a−14Kn/an/a
Vesting, gifts, unvested awards and holding lines for Forrest Robinson

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Forrest Robinson are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
−5.7Kwithheld by the company for taxes
Julie Robertson
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. See the filing Sales and other transactions for Julie Robertson are complete.
Director
n/a0n/an/a
Vesting, gifts, unvested awards and holding lines for Julie Robertson

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Julie Robertson are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)
Cesar Jaime
!
Holdings and share of stake are being verified. Share-of-stake figures and holdings for this company are held back while they are verified. See the filing Sales and other transactions for Cesar Jaime are complete.
Director
n/a−10Kn/an/a
Vesting, gifts, unvested awards and holding lines for Cesar Jaime

Holdings and share of stake are being verified. Sales, proceeds, plan and tax status and dates for Cesar Jaime are complete; balances and unit counts will be added when the check is finished.

0gifted (net of own trusts)

Holdings and share of stake for Patterson Uti Energy Inc are being verified, so no balances, unit counts or percentages are shown. Sales, proceeds, plan and tax status, titles and dates come straight from individual filings.

What explains the selling$33.9M of sales by plan status, purpose, seller and month

Officer and director open-market sales: $33.9M across 3,329,873 shares. Plan status and stated purpose are separate questions, and a sale can have both.

By plan status

The lighter segment is sales with no plan disclosed in the filing ($30.9M), including tax-related sales outside a plan.

No plan disclosed · $30.9M

Sales with no 10b5-1 plan and no tax reference in the filing. $12.1M of it is Robert Drummond Jr.. No plan disclosed is a statement about the filing, not about why the sale happened. Largest such sale: Robert Drummond Jr., May 1, 2026

Taxes

281,403 shares ($3.4M) were withheld by the company for taxes, which isn't a market sale.

SellerShares soldProceedsUnder a disclosed planShare of totalSales dates
Robert Drummond Jr.
Director
1.15M$12.1M0%36%Feb 13, 2026 to Sep 2, 2026
William Hendricks Jr.
President & CEO, Director
950K$11.5M26%34%May 1, 2026 to Sep 18, 2026
James Stewart
Director
925K$6.6M0%19%Dec 17, 2025 to Aug 25, 2026
James Holcomb
EVP & Chief Operating Officer
150K$1.7M0%5%May 28, 2026 to May 28, 2026
Seth Wexler
EVP, General Counsel&Secretary
120K$1.5M0%5%Sep 1, 2026 to Sep 1, 2026
Forrest Robinson
Chief Accounting Officer
14K$164K0%0.5%Jun 8, 2026 to Jun 8, 2026
Cesar Jaime
Director
10K$123K0%0.4%May 5, 2026 to May 5, 2026
Tiffany Cepak
Director
12K$106K0%0.3%Mar 4, 2026 to Mar 4, 2026

Sales by month

MonthSale proceedsDisclosed planTo cover taxesNo plan disclosed
Oct 2025$0$0$0$0
Nov 2025$0$0$0$0
Dec 2025$4.2M$0$0$4.2M
Jan 2026$0$0$0$0
Feb 2026$3.3M$0$0$3.3M
Mar 2026$1.8M$0$0$1.8M
Apr 2026$0$0$0$0
May 2026$9.4M$0$0$9.4M
Jun 2026$2.5M$0$0$2.5M
Jul 2026$0$0$0$0
Aug 2026$2.4M$0$0$2.4M
Sep 2026$10.3M$3.0M$0$7.3M
Oct 2026$0$0$0$0
Is this normal? Selling year by year5 earlier years to compare with

More than usual: about 5x the 5-year average. 8 insiders sold; the average is 3 a year.

12 months endingShares soldInsiders who soldProceeds
Oct 16, 2026
Latest 12 months
3.33M8$33.9M
Oct 16, 2025
1 year earlier
630K2$4.9M
Oct 16, 2024
2 years earlier
478K3$5.5M
Oct 17, 2023
3 years earlier
532K5$8.2M
Oct 17, 2022
4 years earlier
1.92M6$30.9M
Oct 17, 2021
5 years earlier
00$0

Open-market sales (Form 4 code S) by people who were officers or directors, in split-adjusted shares. Earlier years include people who have since left. A sale that an outside holder also reports (a family trust, a fund) is counted with outside holders in every year. Shares, not dollars, are compared, so a change in the stock price doesn't look like a change in selling. Years the filings don't fully cover are shown but left out of the average.

Known gaps and uncertainty15 officers and directors not confirmed

Holdings and share of stake are being verified. Balances, unit counts and every share-of-stake figure for Patterson Uti Energy Inc are held back until that check is finished. Sales, proceeds, plan and tax status, titles and dates come straight from individual filings and are complete.

External context: we only cite outside events when a documented connection exists. None is shown for this period.

Sources and methodology572 filings on record, 38 filed in the 12-month period, and how we read them

All 572 Forms 3, 4 and 5 on record for Patterson Uti Energy Inc (SEC CIK 889900), filed from Oct 31, 2002 to Sep 21, 2026; 38 of them were filed in the 12 months this page covers, retrieved from SEC EDGAR on Oct 16, 2026. Prices are the ones reported in each filing, often weighted averages. 1 filing was left out because Patterson Uti Energy Inc filed them as an owner of another company's stock. 1 older filing exists only on paper and could not be read.

Probable 2-for-1 stock split on or before Oct 4, 2004 (first filing that shows post-split balances). Splits aren't reported as transactions; 8 holding lines changed by exactly this ratio, so earlier share counts are restated.

Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.

Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".

Full methodology

Former or inactive filers (18)No filing in 18 months; last reported balances, not in any total
NameLast filedLast reported balance
Leslie BeyerJan 3, 202555,120 shares, last reported balance as of Jan 1, 2025
Matthew GillardAug 20, 2024129,742 shares, last reported balance as of Aug 16, 2024
Blackstone Holdings III L.P.Aug 17, 202334,900,000 shares, last reported balance as of Aug 14, 2023
BEP Diamond Topco L.P.Aug 17, 202334,900,000 shares, last reported balance as of Aug 14, 2023
Terry HuntJan 4, 2023131,246 shares, last reported balance as of Jan 1, 2023
Michael ConlonJan 4, 2023146,655 shares, last reported balance as of Jan 1, 2023
Mark SiegelMay 13, 20202,263,385 shares, last reported balance as of May 11, 2020
Charles BucknerMar 12, 202082,881 shares, last reported balance as of Mar 11, 2020
John Vollmer IIIMay 4, 20171,000,460 shares, last reported balance as of May 2, 2017
Cloyce TalbottJan 5, 2015293,476 shares, last reported balance as of Jan 1, 2015
Kenneth PeakJan 3, 201329,000 shares, last reported balance as of Jan 1, 2013
Gregory PipkinJun 12, 201228,303 shares, last reported balance as of Jun 9, 2012
Douglas WallApr 28, 2011369,434 shares, last reported balance as of Apr 28, 2011
William Moll Jr.Jun 10, 200926,470 shares, last reported balance as of Jun 9, 2009
Robert GistApr 3, 200757,772 shares, last reported balance as of Mar 26, 2007
Nadine SmithJan 5, 200729,000 shares, last reported balance as of Jan 3, 2007
Glenn PattersonJun 17, 2005150,148 shares, last reported balance as of Jun 16, 2005
Jonathan NelsonJun 17, 200540,200 shares, last reported balance as of Jun 17, 2005

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