LYTIR

Company · FANG

Diamondback Energy, Inc.

Nasdaq's symbol directory lists FANG on Nasdaq as “Diamondback Energy, Inc. - Common Stock”.

In the 12 months to Nov 8, 2026: insiders sold on 33 occasions ($6.1B); 11 planned-sale notices; 2 filings by holders of 5% or more; 1 congressional trade disclosure; 5 company reports (Form 8-K, since May 26, 2026).

All insider filings at the SEC

Insider purchases and sales, by month (last 12 months)Insider purchases: $0 in total; Insider sales: $6.1B in total.Mar: Insider sales $2.2BMay: Insider sales $6.8MJun: Insider sales $2.1BAug: Insider sales $12.2MSep: Insider sales $1.9BOct: Insider sales $6.1MDecJanFebMarAprMayJunJulAugSepOctNov
Insider purchases above the line: $0Insider sales below: $6.1B
Dollar value of open-market purchases and sales reported on SEC Form 4, by the month traded. Sales include pre-arranged 10b5-1 plan sales.

Insider trades · SEC Form 4

Those inside the hall

Open-market purchases and sales only. Legs one person filed for one day are combined.

Who traded

  1. SGF FANG Holdings, LP sold on 3 days latest Sep 16, 2026 sold $6.1B
  2. Charles A. Meloy sold on 5 days all under a 10b5-1 plan latest Oct 5, 2026 sold $31.3M
  3. Travis D. Stice sold on 1 day latest Sep 11, 2026 sold $15.3M
  4. Matt Zmigrosky, EVP, Chief Legal and Admin Off sold on 7 days latest Sep 15, 2026 sold $8.4M
  5. Teresa L. Dick, EVP Accounting, Assist. Sec. sold on 6 days latest Sep 15, 2026 sold $6.5M
  6. Matthew Kaes Van't Hof, Chief Executive Officer sold on 3 days latest Aug 20, 2026 sold $6.3M
  7. Daniel N. Wesson, Exec. VP & COO sold on 1 day latest Aug 20, 2026 sold $1.6M
  8. Albert Barkmann, Exec. VP and Chief Engineer sold on 2 days latest May 15, 2026 sold $1.3M
  9. Thompson Jere W III, CFO, Executive VP sold on 3 days latest Aug 14, 2026 sold $442K
  10. Mark Lawrence Plaumann sold on 2 days latest Aug 21, 2026 sold $309K
Every trade (33)
  1. SELLCharles A. Meloy sold Oct 5, 2026 33,333 shares 3 legs combined 10b5-1 plan (scheduled) filing $6.1M
  2. SELLSGF FANG Holdings, LP sold Sep 16, 2026 9,079,675 shares filing $1.9B
  3. SELLTeresa L. Dick, EVP Accounting, Assist. Sec. sold Sep 15, 2026 5,000 shares filing $1.1M
  4. SELLMatt Zmigrosky, EVP, Chief Legal and Admin Off sold Sep 15, 2026 1,326 shares filing $282K
  5. SELLTravis D. Stice sold Sep 11, 2026 75,000 shares filing $15.3M
  6. SELLMark Lawrence Plaumann sold Aug 21, 2026 1,000 shares filing $211K
  7. SELLMatthew Kaes Van't Hof, Chief Executive Officer sold Aug 20, 2026 10,000 shares 2 legs combined filing $2.1M
  8. SELLDaniel N. Wesson, Exec. VP & COO sold Aug 20, 2026 7,500 shares filing $1.6M
  9. SELLMatt Zmigrosky, EVP, Chief Legal and Admin Off sold Aug 14, 2026 2,500 shares filing $507K
  10. SELLThompson Jere W III, CFO, Executive VP sold Aug 14, 2026 500 shares filing $102K
  11. SELLMatthew Kaes Van't Hof, Chief Executive Officer sold Aug 11, 2026 5,000 shares filing $1.0M
  12. SELLCharles A. Meloy sold Aug 3, 2026 33,333 shares 4 legs combined 10b5-1 plan (scheduled) filing $6.6M
  13. SELLCharles A. Meloy sold Jun 16, 2026 83,334 shares 3 legs combined 10b5-1 plan (scheduled) filing $15.6M
  14. SELLMark Lawrence Plaumann sold Jun 9, 2026 500 shares filing $98K
  15. SELLSGF FANG Holdings, LP sold Jun 4, 2026 10,000,000 shares filing $2.0B
  16. SELLTeresa L. Dick, CAO, Exec. VP, Assist. Sec. sold Jun 4, 2026 5,000 shares filing $1.0M
  17. SELLMatthew Kaes Van't Hof, Chief Executive Officer sold Jun 3, 2026 15,000 shares 2 legs combined filing $3.1M
  18. SELLMatt Zmigrosky, EVP, Chief Legal and Admin Off sold Jun 3, 2026 5,000 shares filing $1.1M
  19. SELLTeresa L. Dick, CAO, Exec. VP, Assist. Sec. sold Jun 2, 2026 7,000 shares filing $1.4M
  20. SELLMatt Zmigrosky, EVP, Chief Legal and Admin Off sold Jun 1, 2026 5,000 shares filing $1.0M
  21. SELLTeresa L. Dick, CAO, Exec. VP, Assist. Sec. sold May 19, 2026 5,000 shares filing $1.0M
  22. SELLAlbert Barkmann, Exec. VP and Chief Engineer sold May 15, 2026 3,000 shares filing $612K
  23. SELLThompson Jere W III, CFO, Executive VP sold May 15, 2026 1,000 shares filing $203K
  24. SELLTeresa L. Dick, CAO, Exec. VP, Assist. Sec. sold May 14, 2026 5,000 shares filing $1.0M
  25. SELLMatt Zmigrosky, EVP, Chief Legal and Admin Off sold May 13, 2026 5,000 shares filing $1.0M
  26. SELLCharles A. Meloy sold May 8, 2026 7,857 shares 3 legs combined 10b5-1 plan (scheduled) filing $1.5M
  27. SELLCharles A. Meloy sold May 7, 2026 7,857 shares 4 legs combined 10b5-1 plan (scheduled) filing $1.5M
  28. SELLTeresa L. Dick, CAO, Exec. VP, Assist. Sec. sold Mar 18, 2026 5,000 shares filing $950K
  29. SELLMatt Zmigrosky, EVP, Chief Legal and Admin Off sold Mar 18, 2026 4,101 shares filing $781K
  30. SELLThompson Jere W III, CFO, Executive VP sold Mar 16, 2026 750 shares filing $137K
  31. SELLMatt Zmigrosky, EVP, Chief Legal and Admin Off sold Mar 13, 2026 20,899 shares filing $3.8M
  32. SELLAlbert Barkmann, Exec. VP and Chief Engineer sold Mar 13, 2026 4,000 shares filing $732K
  33. SELLSGF FANG Holdings, LP sold Mar 12, 2026 12,650,000 shares filing $2.2B

Planned sales · SEC Form 144

Notice given

A Form 144 is filed before an insider sells restricted stock. It states an intent; the sale, if it happens, appears later on a Form 4. Every recent notice

  1. Charles A. Meloy filed Oct 5, 2026 Director 33,333 shares planned sale date 10/05/2026 filing $6.1M
  2. SGF FANG Holdings, LP filed Sep 16, 2026 10% Stockholder 9,079,675 shares planned sale date 09/16/2026 filing $1.9B
  3. Dick Teresa L. filed Sep 15, 2026 Officer 5,000 shares planned sale date 09/15/2026 filing $1.1M
  4. Zmigrosky Matt filed Sep 15, 2026 Officer 1,326 shares planned sale date 09/15/2026 filing $282K
  5. Stice Travis D. filed Sep 11, 2026 Officer 75,000 shares planned sale date 09/11/2026 filing $15.3M
  6. Plaumann Mark Lawrence filed Aug 21, 2026 Director 1,000 shares planned sale date 08/21/2026 filing $211K
  7. Van't Hof Matthew Kaes filed Aug 20, 2026 Officer 10,000 shares planned sale date 08/20/2026 filing $2.1M
  8. Wesson Daniel N filed Aug 20, 2026 Officer 7,500 shares planned sale date 08/20/2026 filing $1.6M
  9. Zmigrosky Matt filed Aug 14, 2026 Officer 2,500 shares planned sale date 08/14/2026 filing $507K
  10. Thompson Jere W III filed Aug 14, 2026 Officer 500 shares planned sale date 08/14/2026 filing $102K
  11. Van't Hof Matthew Kaes filed Aug 11, 2026 Officer 5,000 shares planned sale date 08/11/2026 filing $1.0M

Large holders · SEC Schedules 13D and 13G

Five percent and over

Anyone who comes to hold more than 5% of a company's voting shares must tell the SEC. A Schedule 13D is filed by a holder who may seek to influence the company; a 13G by one who states it is a passive investor. An amendment updates an earlier filing, and a stake reported as 0% means the holder says it has sold all, or nearly all, of its shares. Every recent 13D and 13G

  1. SGF FANG Holdings, LP filed Sep 17, 2026 Schedule 13D/A may seek influence 64,957,047 shares filing 23.2%
  2. Wellington Management Group LLP filed Aug 13, 2026 Schedule 13G passive filing 5.84%

Congress · STOCK Act

The Althing

Periodic transaction reports. Amounts are the ranges members report; the trade date is when it happened, the report can come up to 45 days later.

  1. Roger Williams (R-TX25): Sale Dec 22, 2025 reported Jan 15, 2026 one of 4 trades the member reported that day House Stocks (including ADRs) $1,001 - $15,000

Company reports · SEC Form 8-K

In its own words

Current reports the company filed with the SEC; most items are due within four business days of the event. Each line lists the report's items by the SEC's own titles; the filing says what happened. Reports collected since May 26, 2026; every 8-K at the SEC.

  1. Results of operations and financial condition filing Nov 2, 2026
  2. Results of operations and financial condition filing Oct 8, 2026
  3. Entry into a material definitive agreement; Departure or appointment of directors or officers filing Sep 30, 2026
  4. Results of operations and financial condition filing Aug 3, 2026
  5. Results of operations and financial condition filing Jul 13, 2026

Sources: SEC EDGAR (Forms 4, 144 and 8-K) and STOCK Act periodic transaction reports. Filings can be late, amended or wrong at the source; see methodology.