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Who

Robert Wayne Drummond Jr.

Director

Company insider

Files Form 4 as: Director, Patterson-UTI Energy; Director, Expro Group Holdings; President & CEO, Nextier Oilfield Solutions; President and CEO, Key Energy Services.

In numbers

Trades disclosed
151
Buys
1
Sells
14
Bought
$205K
Sold
$36.9M
Companies
4
Companies where not an officer
2
First trade
22 Jun 2015
Last trade
2 Sep 2026
Last filed
3 Sep 2026

Companies traded

Where they are an officer
Nextier Oilfield SolutionsDirector, Officer · last 1 Sep 20230 buys · 3 sells
Key Energy ServicesDirector, Officer · last 3 Jan 20180 buys · 0 sells
Everywhere else they filed: board seats, 10% stakes, other companies
PTEN Patterson-UTI EnergyDirector · Oilfield services · last 2 Sep 20260 buys · 10 sells
Expro Group HoldingsDirector · last 1 Jun 20261 buy · 1 sell

Activity over time

1 Nov 2024 – 1 Oct 2026
201Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month. 1 lines have no legible date and are left out.

Every trade

TradedCompanyWhatAmount
2 Sep 2026filed 3 Sep 2026PTEN Patterson-UTI EnergyOilfield servicesSEC FORM 4 Sold$2.5M198,395 at $12.85filing
2 Sep 2026filed 3 Sep 2026PTEN Patterson-UTI EnergyOilfield servicesSEC FORM 4 Sold$2.5M198,395 at $12.85filing
1 Sep 2026filed 3 Sep 2026PTEN Patterson-UTI EnergyOilfield servicesSEC FORM 4 Sold$21K1,605 at $12.85filing
1 Sep 2026filed 3 Sep 2026PTEN Patterson-UTI EnergyOilfield servicesSEC FORM 4 Sold$21K1,605 at $12.85filing
1 Jun 2026filed 3 Jun 2026Expro Group HoldingsSEC FORM 4 Code A—8,907 at $0.00filing
4 May 2026filed 4 May 2026PTEN Patterson-UTI EnergyOilfield servicesSEC FORM 4 Sold$739K61,475 at $12.02filing
4 May 2026filed 4 May 2026PTEN Patterson-UTI EnergyOilfield servicesSEC FORM 4 Sold$739K61,475 at $12.02filing
1 May 2026filed 4 May 2026PTEN Patterson-UTI EnergyOilfield servicesSEC FORM 4 Sold$3.9M322,699 at $12.04filing
1 May 2026filed 4 May 2026PTEN Patterson-UTI EnergyOilfield servicesSEC FORM 4 Sold$3.9M322,699 at $12.04filing
16 Mar 2026filed 18 Mar 2026PTEN Patterson-UTI EnergyOilfield servicesSEC FORM 4 Sold$1.7M164,775 at $10.18filing
16 Mar 2026filed 18 Mar 2026PTEN Patterson-UTI EnergyOilfield servicesSEC FORM 4 Sold$1.7M164,775 at $10.18filing
13 Feb 2026filed 17 Feb 2026PTEN Patterson-UTI EnergyOilfield servicesSEC FORM 4 Sold$3.3M400,000 at $8.17filing
13 Feb 2026filed 17 Feb 2026PTEN Patterson-UTI EnergyOilfield servicesSEC FORM 4 Sold$3.3M400,000 at $8.17filing
1 Jan 2026filed 5 Jan 2026PTEN Patterson-UTI EnergyOilfield servicesSEC FORM 4 Code A—28,641 at $0.00filing
1 Jan 2026filed 5 Jan 2026PTEN Patterson-UTI EnergyOilfield servicesSEC FORM 4 Code A—28,641 at $0.00filing
1 Jun 2025filed 3 Jun 2025Expro Group HoldingsSEC FORM 4 Code A—17,104 at $0.00filing
14 Feb 2025filed 18 Feb 2025PTEN Patterson-UTI EnergyOilfield servicesSEC FORM 4 Sold$2.0M230,000 at $8.89filing
1 Jan 2025filed 3 Jan 2025PTEN Patterson-UTI EnergyOilfield servicesSEC FORM 4 Code A—21,186 at $0.00filing
16 Dec 2024filed 17 Dec 2024Expro Group HoldingsSEC FORM 4 Bought$205K18,000 at $11.39filing
1 Jun 2024filed 3 Jun 2024Expro Group HoldingsSEC FORM 4 Code A—7,748 at $0.00filing

Sectors

Energy10
Not placed5

Buys in green, sells in red, by the company’s sector.

Related people

William Andrew Hendricks Jr.President & CEO · Also traded PTEN in the last 90 days
Seth David WexlerEVP, General Counsel&Secretary · Also traded PTEN in the last 90 days
James Carl StewartDirector · Also traded PTEN in the last 90 days
Donald J. TrumpPresident · Also traded PTEN in the last 90 days