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Who

Albert Barkmann

Exec. VP and Chief Engineer

Company insider

Files Form 4 as: Exec. VP and Chief Engineer, Diamondback Energy; Exec. VP and Chief Engineer, VNOM Sub.

Every Form 4 they filed

In numbers

Trades disclosed
36
Buys
0
Sells
4
Bought
$0
Sold
$3.1M
Companies
2
Companies where not an officer
0
First trade
1 Mar 2024
Last trade
10 Sep 2026
Last filed
14 Sep 2026

Companies traded

Where they are an officer
FANG Diamondback EnergyOfficer · Oil & Gas E&P · last 10 Sep 20260 buys · 4 sells
VNOM SubOfficer · last 19 Aug 20250 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
10Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
10 Sep 2026filed 14 Sep 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code F$138K682 at $202.63filing
10 Sep 2026filed 14 Sep 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code F$138K682 at $202.63filing
15 May 2026filed 19 May 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Sold$612K3,000 at $204.04filing
15 May 2026filed 19 May 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Sold$612K3,000 at $204.04filing
13 Mar 2026filed 17 Mar 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Sold$732K4,000 at $182.90filing
13 Mar 2026filed 17 Mar 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Sold$732K4,000 at $182.90filing
1 Mar 2026filed 3 Mar 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code A—3,500 at $0.00filing
1 Mar 2026filed 3 Mar 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code A—6,430 at $0.00filing
1 Mar 2026filed 3 Mar 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code F$425K2,440 at $174.08filing
1 Mar 2026filed 3 Mar 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code F$49K281 at $174.08filing
1 Mar 2026filed 3 Mar 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code F$59K340 at $174.08filing
1 Mar 2026filed 3 Mar 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code F$80K460 at $174.08filing
1 Mar 2026filed 3 Mar 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code A—3,500 at $0.00filing
1 Mar 2026filed 3 Mar 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code A—6,430 at $0.00filing
1 Mar 2026filed 3 Mar 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code F$425K2,440 at $174.08filing
1 Mar 2026filed 3 Mar 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code F$49K281 at $174.08filing
1 Mar 2026filed 3 Mar 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code F$59K340 at $174.08filing
1 Mar 2026filed 3 Mar 2026FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code F$80K460 at $174.08filing
10 Sep 2025filed 11 Sep 2025FANG Diamondback EnergyOil & Gas E&PSEC FORM 4 Code F$93K682 at $136.29filing
19 Aug 2025filed 19 Aug 2025VNOM SubSEC FORM 4 Code D—1,000filing

Sectors

Energy4

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
Teresa L. DickEVP Accounting, Assist. Sec. · EVP Accounting, Assist. Sec. 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
Matt ZmigroskyEVP, Chief Legal and Admin Off · EVP, Chief Legal and Admin Off at Diamondback Energy, filing Form 4 there in the last year
Travis D. SticeDirector · Director at Diamondback Energy, filing Form 4 there in the last year
Mark Lawrence PlaumannDirector · Also traded FANG in the last 90 days
Daniel N. WessonExec. VP & COO · Also traded FANG in the last 90 days
Hof Matthew Kaes Van'tChief Executive Officer · Also traded FANG in the last 90 days