Insider trade

Hof Matthew Kaes Van't, CEO at Diamondback Energy, sold ~$108K of Diamondback Energy shares.

~$108K
Approx. value · 500 sh @ $215.06
116K
Holds after · shares reported
Traded
Aug 20, 2026
Filed
Aug 24, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

  1. Jul 13, 2026Company filing · Form 8-K · ResultsReported its results
  2. Aug 3, 2026Company filing · Form 8-K · ResultsReported its results
  3. Aug 3, 2026Insider · 1 personInsiders: 4 sales (~$6.6M)
  4. Aug 11, 2026InsiderCEO sold ~$1.01M of FANG shares in the open market
  5. Aug 13, 20265% stakeWellington Management Group LLP reported a passive stake (13G) of 5.8%
  6. Aug 14, 2026Insider · 2 peopleInsiders: 2 sales (~$609K)
  7. Aug 20, 2026 · this disclosureInsiderCEO sold ~$108K of FANG shares in the open market

What came next

  1. Aug 20, 2026Insider · 2 peopleInsiders: 2 sales (~$3.7M)
  2. Aug 21, 2026InsiderDirector sold ~$211K of FANG shares in the open market
  3. Sep 11, 2026Insider · Their largest sale since 2013Director sold ~$15.3M of FANG shares in the open market
  4. Sep 15, 2026Insider · 2 peopleInsiders: 2 sales (~$1.3M)
  5. Sep 16, 2026Insider · 13 days before an 8-K10% owner sold ~$1.86B of FANG shares in the open market
  6. Sep 17, 20265% stakeSGF FANG Holdings, LP filed an activist stake (13D) of 23.2%
  7. Sep 29, 2026Company filing · Form 8-K · Material agreement, Executive changeChanged a top executive or board member, and signed an important agreement“In connection with a Board Stepdown (as defined in the Stockholders Agreement), and not due to any disagreement with the Company on any matter relating to the Company’s operations, policies or practices, Darin Holderness and Lance Robertson resigned from the Board on September 29, 2026 and September 30, 2026, respectively.”
  8. Oct 5, 2026Insider · 1 personInsiders: 3 sales (~$6.1M)
  9. Oct 8, 2026Company filing · Form 8-K · ResultsReported its results
View the official recordSEC Form 4

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Diamondback Energy

For Diamondback Energy, OQRO holds 23 insider filings (SEC Form 4 or Form 144) and 13 fund holdings reports (13F) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its FANG page.

Other recent filings by Hof Matthew Kaes Van't, Chief Executive Officer

The full history of Hof Matthew Kaes Van't, Chief Executive Officer is on the profile page.

How this filing works

Other disclosures at Diamondback Energy

Everything OQRO holds on this company is on its FANG page.

This is one filing. OQRO holds the rest

Insider trades filed with the SEC, stock trades disclosed by members of Congress, fund holdings from 13F filings and federal contract awards, each one in plain words next to its official filing. On this page it opens why the trade stands out, what the company did around that time, the price since, and every field of the form.

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