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Diamondback Energy FANG

Diamondback Energy is the 207th largest S&P 500 company by market cap, worth $57.6 billion. 12 directors have filed with the SEC in the last 12 months (who counts), 1 of them an executive. 6 other officers are on file. At 30 Jun 2026, Vanguard was its largest institutional holder, with 8.7% of the company.

CEO
Hof Matthew Kaes Van't
Sector
Energy
Sub-industry
Oil & Gas Exploration & Production
Headquarters
Midland, Texas
Founded
2007
More
Wikipedia
Market cap
$57.6B
207th largest, 23 Oct 2026 close
Revenue
$15.0B
Fiscal year 2025
Price to sales
3.8
Market cap over revenue
Employees
1,762
10-K, 23 Dec 2025
Market cap per employee
$33M
Market cap over employees
Connections
0
S&P 500 companies sharing a director or officer

Largest institutional holders

Each fund group's share of Diamondback Energy. Where a company has several share classes, the share is of its total value.

13F filings for the quarter to 30 Jun 2026

These five hold 29.7% of Diamondback Energy.

Source: SEC Form 13F data sets, SEC XBRL shares outstanding 路 All holders

Board and officers

Roles filed up to 30 Sep 2026

NameTitle
Directors (12)
Hof Matthew Kaes Van'tChief Executive OfficerChief Executive Officer
Vincent K. BrooksDirectorDirector
Darin G. HoldernessDirectorDirector
Rebecca A. KleinDirectorDirector
Stephanie K. MainsDirectorDirector
Charles Alvin MeloyDirectorDirector
Mark Lawrence PlaumannDirectorDirector
Robert K. ReevesDirectorDirector
Travis D. SticeDirectorDirector
Melanie Montague TrentDirectorDirector
Frank D. TsuruDirectorDirector
Steven E. WestDirectorDirector
Officers (6)
Jere W. Thompson IIICFO, Executive VPLast filed 17 Aug 2026CFO, Executive VP
Albert BarkmannExec. VP and Chief EngineerLast filed 14 Sep 2026Exec. VP and Chief Engineer
Teresa L. DickEVP Accounting, Assist. SecLast filed 17 Sep 2026EVP Accounting, Assist. Sec
Chad McAllasterEVP-OperationsLast filed 3 Mar 2026EVP-Operations
Daniel N. WessonExec. VP & COOLast filed 24 Aug 2026Exec. VP & COO
Matt ZmigroskyEVP, Chief Legal and Admin OffLast filed 17 Sep 2026EVP, Chief Legal and Admin Off

Source: SEC insider filings (Forms 3, 4 and 5), Diamondback Energy's Form 4 filings 路 All directors and officers

Diamondback Energy's market cap since October 2012

Marked weeks are changes in the share count, such as a merger, not market moves.

Weekly, up to 23 Oct 2026

Show equal percentage changes as equal steps.
2014201620182020202220242026$57.6B

Source: Yahoo Finance closing prices, SEC XBRL shares outstanding

Workforce

Headcount at 23 Dec 2025

Employees
1,762
We ended the year 2025 with 1,762 full-time employees.
Diamondback Energy Form 10-K

Source: Diamondback Energy Form 10-K

Insider trades

Open-market buys and sales by directors and officers. Grants, option exercises and shares withheld for tax are left out.

Trades from 30 Sep 2025 to 30 Sep 2026

Directors and officers sold $164 million of stock in 50 sales and made no open-market purchases in the 12 months to 30 Sep 2026.

DatePersonTitleTypeSharesValue
15 Sep 2026SaleTeresa L. DickEVP Accounting, Assist. SecEVP Accounting, Assist. SecSale5,000$1.1M
15 Sep 2026SaleMatt ZmigroskyEVP, Chief Legal and Admin OffEVP, Chief Legal and Admin OffSale1,326$282K
11 Sep 2026SaleTravis D. SticeDirectorDirectorSale75,000$15M
21 Aug 2026SaleMark Lawrence PlaumannDirectorDirectorSale1,000$211K
20 Aug 2026SaleHof Matthew Kaes Van'tChief Executive OfficerChief Executive OfficerSale10,000$2.1M
20 Aug 2026SaleDaniel N. WessonExec. VP & COOExec. VP & COOSale7,500$1.6M
14 Aug 2026SaleMatt ZmigroskyEVP, Chief Legal and Admin OffEVP, Chief Legal and Admin OffSale2,500$507K
14 Aug 2026SaleJere W. Thompson IIICFO, Executive VPCFO, Executive VPSale500$102K
11 Aug 2026SaleHof Matthew Kaes Van'tChief Executive OfficerChief Executive OfficerSale5,000$1.0M
3 Aug 2026SaleCharles Alvin MeloyDirectorDirectorSale33,333$6.6M

Showing 10 of 50 trades

Source: SEC insider transactions data sets, Diamondback Energy's Form 4 filings

Trades by members of Congress and officials

Trades members of Congress and senior executive branch officials disclosed, including their families'. Amounts are filed as ranges.

Trades from 20 Oct 2023 to 20 Oct 2026

6 people disclosed 4 purchases and 10 sales of Diamondback Energy stock since October 2023.

DateMember or officialTypeAmount
23 Jun 2026Donald J Trump (President)President 路 SoldSale$1,001 to $15,000$1K to $15K
16 Jun 2026Donald J Trump (President)President 路 SoldSale$1,001 to $15,000$1K to $15K
15 Apr 2026Donald J Trump (President)President 路 BoughtPurchase$1,001 to $15,000$1K to $15K
10 Apr 2026Donald J Trump (President)President 路 SoldSale$1,001 to $15,000$1K to $15K
23 Mar 2026Donald J Trump (President)President 路 BoughtPurchase$1,001 to $15,000$1K to $15K
22 Dec 2025Roger Williams (House, R-TX)House, R-TX 路 SoldSale$1,001 to $15,000$1K to $15K
16 Jul 2025Lisa McClain (House, R-MI)House, R-MI 路 SoldSale$1,001 to $15,000$1K to $15K
17 Jun 2025Lisa McClain (House, R-MI)House, R-MI 路 BoughtPurchase$1,001 to $15,000$1K to $15K
28 Apr 2025Christopher Landau (Deputy Secretary)Deputy Secretary 路 SoldSale$15,001 to $50,000$15K to $50K
8 Apr 2025Rob Bresnahan (House, R-PA)House, R-PA 路 SoldSale$1,001 to $15,000$1K to $15K

Showing 10 of 14 trades

Source: House, Senate and OGE disclosures via the Congress trading monitor

Not on file: no director or officer shared with another S&P 500 company and no WARN layoff notices under its own name since October 2023.