Form4insider filings, from the source

Company · CIK 0001539838 · SIC 1311 — Crude Petroleum & Natural Gas · Nasdaq

Diamondback Energy, Inc. · FANG

Insider activity reported against this company. All insider holders · Files at: VNOM, VNOM. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market activity at this companybuys $0 · 0sales $3.74B · 5net −$3.74B
$10k$10k$1M$1M$100M$100M$10B$10BbuyssalesAug 27Sep 1Sep 6Sep 11Sep 16Sep 21Sep 27

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 16, 2026 SForm 4 →Sep 17, 5:12 pm EDTSGF FANG Holdings, LP +110% Owner9,079,675$205.26$1,863,694,09164,957,047−12.3%
Sep 16, 2026 SForm 4 →Sep 17, 5:08 pm EDTSGF FANG Holdings, LP +110% Owner9,079,675$205.26$1,863,694,09164,957,047−12.3%
Sep 15, 2026 SForm 4 →Sep 17, 4:03 pm EDTMatt ZmigroskyEVP, Chief Legal and Admin Off1,326$212.56$281,84836,705−3.49%
Sep 15, 2026 SForm 4 →Sep 17, 4:03 pm EDTTeresa L. DickEVP Accounting, Assist. Sec.5,000$210.00$1,050,00075,755−6.19%
Sep 15, 2026 GForm 4 →Sep 17, 4:03 pm EDTCharles Alvin MeloyDirector100,000——28,257—
Sep 11, 2026 SForm 4 →Sep 14, 4:07 pm EDTTravis D. SticeDirector75,000$204.31$15,323,27349,727−60.1%
Sep 10, 2026 FForm 4 →Sep 14, 4:05 pm EDTMatt ZmigroskyEVP, Chief Legal and Admin Off861$202.63$174,46438,031—
Sep 10, 2026 FForm 4 →Sep 14, 4:03 pm EDTAlbert BarkmannExec. VP and Chief Engineer682$202.63$138,19423,889—

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.

Filed by this entity as an insider elsewhere — common stock

No reported common-stock activity in this period.

Filed by this entity as an insider elsewhere — derivatives (options, RSUs, warrants)

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Sep 1, 2026 AForm 4 →Sep 3, 4:30 pm EDTViper Energy, Inc.VNOM7,630,918——70,633,640—