Albert Barkmann
Exec. VP and Chief Engineer, Diamondback Energy.
Companies
- Viper Energy, Inc.Exec. VP and Chief Engineer Aug 19, 2025 to now1
- VNOM Sub, Inc.Exec. VP and Chief Engineer Apr 25, 2024 to now2
- Diamondback EnergyExec. VP and Chief Engineer Feb 26, 2024 to now3
Holdings
Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.
Shares held
Diamondback Energy FANG23,889 shares4$4.9M at $203.92Sep 10, 2026- Viper Energy, Inc. VNOM1,000 shares5$43.6K at $43.62Aug 19, 2025
- VNOM Sub, Inc.0 shares6Aug 19, 2025
As of each latest filing. The line shows shares held over time.
Recent filings
- Sep 10, 2026Shares withheld for tax 682 shares at $202.63 of Diamondback Energy4
- May 15, 2026Sold 3,000 shares at $204.04 of Diamondback Energy7
- Mar 13, 2026Sold 4,000 shares at $182.90 of Diamondback Energy8
- Mar 1, 2026Shares withheld for tax 460 shares at $174.08 of Diamondback Energy9
- Mar 1, 2026Shares withheld for tax 340 shares at $174.08 of Diamondback Energy9
- Mar 1, 2026Shares withheld for tax 281 shares at $174.08 of Diamondback Energy9
- Mar 1, 2026Shares withheld for tax 2,440 shares at $174.08 of Diamondback Energy9
- Mar 1, 2026Granted 6,430 shares of Diamondback Energy9
- Mar 1, 2026Granted 3,500 shares of Diamondback Energy9
- Sep 10, 2025Shares withheld for tax 682 shares at $136.29 of Diamondback Energy10
- Aug 19, 2025Returned to company 1,000 shares of VNOM Sub, Inc.6
- Mar 1, 2025Shares withheld for tax 340 shares at $158.96 of Diamondback Energy11
- Mar 1, 2025Shares withheld for tax 285 shares at $158.96 of Diamondback Energy11
- Mar 1, 2025Shares withheld for tax 184 shares at $158.96 of Diamondback Energy11
- Mar 1, 2025Shares withheld for tax 1,811 shares at $158.96 of Diamondback Energy11
- Mar 1, 2025Granted 4,615 shares of Diamondback Energy11
- Mar 1, 2025Granted 3,500 shares of Diamondback Energy11
- Sep 10, 2024Granted 5,193 shares of Diamondback Energy12
- Jun 10, 2024Sold 1,000 shares at $194.75 of Diamondback Energy13
- May 28, 2024Shares withheld for tax 153 shares at $193.46 of Diamondback Energy14
- Mar 20, 2024Sold 1,066 shares at $190.75 of Diamondback Energy15
- Mar 1, 2024Shares withheld for tax 282 shares at $182.52 of Diamondback Energy16
- Mar 1, 2024Shares withheld for tax 162 shares at $182.52 of Diamondback Energy16
- Mar 1, 2024Shares withheld for tax 221 shares at $182.52 of Diamondback Energy16
- Mar 1, 2024Shares withheld for tax 2,506 shares at $182.52 of Diamondback Energy16
Sources
The numbers on this page point here. Each one links to the record it came from.
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- 6
- 7SEC EDGARForm 4 filed May 19, 2026
- 8SEC EDGARForm 4 filed Mar 17, 2026
- 9SEC EDGARForm 4 filed Mar 3, 2026
- 10SEC EDGARForm 4 filed Sep 11, 2025
- 11SEC EDGARForm 4 filed Mar 4, 2025
- 12SEC EDGARForm 4 filed Sep 12, 2024
- 13SEC EDGARForm 4 filed Jun 12, 2024
- 14SEC EDGARForm 4 filed May 29, 2024
- 15SEC EDGARForm 4 filed Mar 21, 2024
- 16SEC EDGARForm 4 filed Mar 5, 2024