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Who

Michael L. Hollis

President and CEO

Company insider

Files Form 4 as: President and CEO, HighPeak Energy; President, Pure Acquisition; President and COO, Diamondback Energy; Director, Viper Energy Partners LP.

In numbers

Trades disclosed
160
Buys
35
Sells
31
Bought
$17.2M
Sold
$18.5M
Companies
4
Companies where not an officer
1
First trade
11 Oct 2012
Last trade
9 Jan 2026
Last filed
9 Jan 2026

Companies traded

Where they are an officer
HPK HighPeak EnergyDirector, Officer, 10% owner · Oilfield services · last 9 Jan 202613 buys · 1 sell
Pure AcquisitionDirector, Officer · last 12 Aug 20205 buys · 0 sells
FANG Diamondback EnergyDirector, Officer · Oil & Gas E&P · last 16 Sep 20191 buy · 30 sells
Everywhere else they filed: board seats, 10% stakes, other companies
Viper Energy Partners LPDirector · last 1 Nov 201816 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
101Nov 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
9 Jan 2026filed 9 Jan 2026HPK HighPeak EnergyOilfield servicesSEC FORM 4 Code A—550,000 at $0.00filing
9 Jan 2026filed 9 Jan 2026HPK HighPeak EnergyOilfield servicesSEC FORM 4 Code A—550,000 at $0.00filing
31 Dec 2025filed 5 Jan 2026HPK HighPeak EnergyOilfield servicesSEC FORM 4 Code F$214K45,253 at $4.74filing
31 Dec 2025filed 5 Jan 2026HPK HighPeak EnergyOilfield servicesSEC FORM 4 Code F$214K45,253 at $4.74filing
11 Dec 2024filed 12 Dec 2024HPK HighPeak EnergyOilfield servicesSEC FORM 4 Code G—3,520 at $0.00filing
11 Dec 2024filed 12 Dec 2024HPK HighPeak EnergyOilfield servicesSEC FORM 4 Code G—1,760 at $0.00filing
11 Dec 2024filed 12 Dec 2024HPK HighPeak EnergyOilfield servicesSEC FORM 4 Code G—1,760 at $0.00filing
20 Sep 2023filed 21 Sep 2023HPK HighPeak EnergyOilfield servicesSEC FORM 4 Bought$100K5,989 at $16.64filing
19 Sep 2023filed 21 Sep 2023HPK HighPeak EnergyOilfield servicesSEC FORM 4 Bought$63K3,840 at $16.33filing
21 Jul 2023filed 21 Jul 2023HPK HighPeak Energyoption or derivative · Oilfield servicesSEC FORM 4 Code A—400,000 at $0.00filing
19 Jul 2023filed 21 Jul 2023HPK HighPeak EnergyOilfield servicesSEC FORM 4 Bought$12.0M1,142,542 at $10.50filing
7 Dec 2022filed 7 Dec 2022HPK HighPeak EnergyOilfield servicesSEC FORM 4 Bought$40K1,825 at $21.73filing
6 Dec 2022filed 7 Dec 2022HPK HighPeak EnergyOilfield servicesSEC FORM 4 Bought$660K30,000 at $21.99filing
22 Nov 2022filed 22 Nov 2022HPK HighPeak EnergyOilfield servicesSEC FORM 4 Bought$18K800 at $22.48filing
21 Nov 2022filed 22 Nov 2022HPK HighPeak EnergyOilfield servicesSEC FORM 4 Bought$926K42,202 at $21.95filing
—filed 18 Nov 2022HPK HighPeak EnergyOilfield servicesSEC FORM 4 Bought$208K9,256 at $22.42filing
17 Nov 2022filed 18 Nov 2022HPK HighPeak EnergyOilfield servicesSEC FORM 4 Bought$81K3,598 at $22.46filing
23 Sep 2022filed 23 Sep 2022HPK HighPeak EnergyOilfield servicesSEC FORM 4 Bought$71K3,500 at $20.21filing
2 Sep 2022filed 6 Sep 2022HPK HighPeak EnergyOilfield servicesSEC FORM 4 Code A$350K16,197 at $21.61filing
22 Aug 2022filed 24 Aug 2022HPK HighPeak EnergyOilfield servicesSEC FORM 4 Code A$650K30,079 at $21.61filing

News

Sectors

Energy45
Not placed21

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

Related people

Charles Alvin MeloyDirector · Director at Diamondback Energy, filing Form 4 there in the last year
Matt ZmigroskyEVP, Chief Legal and Admin Off · EVP, Chief Legal and Admin Off at Diamondback Energy, filing Form 4 there in the last year
SGF FANG Holdings, LP10% owner · 10% owner at Diamondback Energy, filing Form 4 there in the last year
Teresa L. DickEVP Accounting, Assist. Sec. · EVP Accounting, Assist. Sec. at Diamondback Energy, filing Form 4 there in the last year
Albert BarkmannExec. VP and Chief Engineer · Exec. VP and Chief Engineer at Diamondback Energy, filing Form 4 there in the last year
Travis D. SticeDirector · Also traded FANG in the last 90 days
Mark Lawrence PlaumannDirector · Also traded FANG in the last 90 days
Daniel N. WessonExec. VP & COO · Also traded FANG in the last 90 days