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Who

Paul M. Jacobi

Chief Business Officer

Company insider

Files Form 4 as: Chief Business Officer, Mammoth Energy Services; Director, Diamondback Energy.

In numbers

Trades disclosed
8
Buys
0
Sells
0
Bought
$0
Sold
$0
Companies
2
Companies where not an officer
1
First trade
11 Oct 2012
Last trade
17 Jun 2026
Last filed
22 Jun 2026

Companies traded

Where they are an officer
TUSK Mammoth Energy ServicesDirector, Officer · Oilfield services · last 17 Jun 20260 buys · 0 sells
Everywhere else they filed: board seats, 10% stakes, other companies
FANG Diamondback EnergyDirector · Oil & Gas E&P · last 11 Oct 20120 buys · 0 sells

Activity over time

Not enough dated trades to draw.

Every trade

TradedCompanyWhatAmount
17 Jun 2026filed 22 Jun 2026TUSK Mammoth Energy ServicesOilfield servicesSEC FORM 4 Code J—3,211 at $0.00filing
17 Jun 2026filed 22 Jun 2026TUSK Mammoth Energy ServicesOilfield servicesSEC FORM 4 Code J—3,211 at $0.00filing
12 Jun 2024filed 14 Jun 2024TUSK Mammoth Energy ServicesOilfield servicesSEC FORM 4 Code A—27,856 at $0.00filing
7 Jun 2023filed 8 Jun 2023TUSK Mammoth Energy ServicesOilfield servicesSEC FORM 4 Code A—23,810 at $0.00filing
29 Jun 2022filed 30 Jun 2022TUSK Mammoth Energy ServicesOilfield servicesSEC FORM 4 Code A—45,662 at $0.00filing
2 Jun 2021filed 4 Jun 2021TUSK Mammoth Energy ServicesOilfield servicesSEC FORM 4 Code A—25,641 at $0.00filing
2 Jul 2020filed 7 Jul 2020TUSK Mammoth Energy ServicesOilfield servicesSEC FORM 4 Code A—86,957 at $0.00filing
11 Oct 2012filed 15 Oct 2012FANG Diamondback Energyoption or derivative · Oil & Gas E&PSEC FORM 4 Code A—6,666 at $0.00filing

News

No headline names them, or the companies they trade most, lately.

Sectors

No trade we could place in a sector.

Related people

Mark Lawrence PlaumannDirector · Director at Mammoth Energy Services, filing Form 4 there in the last year
Phillip LancasterDirector · Director at Mammoth Energy Services, filing Form 4 there in the last year
Arthur H. AmronDirector · Director at Mammoth Energy Services, filing Form 4 there in the last year
Charles E. Davidson10% owner · 10% owner at Mammoth Energy Services, filing Form 4 there in the last year
WEXFORD CAPITAL LP10% owner · Chief Business Officer at Mammoth Energy Services, filing Form 4 there in the last year