// company-profile

Diamondback Energy, Inc.

FANG
ExchangeNasdaqSectorCrude Petroleum & Natural GasInc.DEFilings172Insiders31
// api This Diamondback Energy, Inc. insider-trading data is served live by the Form4API insider trading API. Get the same data via API.

// activity-summary

Recent insider activity is bearish. Over the last 30 days, insiders net sold $2050.2M across 8 transactions.

// 90-day insight

Over the last 90 days, Diamondback Energy, Inc. insiders bought $0 (12 transactions) and sold $2054.1M (13 transactions).

  • Most active insider: Meloy Charles Alvin with 18 transactions totaling $21.6M.
  • Largest single sale: $2042.5M by SGF FANG Holdings, LP on Jun 4, 2026.
  • 57% of recent sales were pre-scheduled 10b5-1 trades — typically less informative than open-market activity.

Activity is mixed — buys and sales are roughly balanced.

Institutional Ownership

Top 13F-HR holders of Diamondback Energy, Inc. as of 2026-03-31

↑ increasing
Total reported AUM
$33.16B
QoQ change
+40.9%
Reporting period
2026-03-31
#1
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
$2.52B
12.7M shares
#2
STATE STREET CORP
CIK 93751
$2.38B
12.1M shares
#3
WELLINGTON MANAGEMENT GROUP LLP
CIK 902219
$2.38B
12.0M shares

Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValue
Jun 17, 2026Van't Hof Matthew KaesFANG
Gift
2,674$0.00$0K
Jun 16, 2026Meloy Charles AlvinFANG
Sale10b5
64,747$187.25$12.12M
Jun 16, 2026Meloy Charles AlvinFANG
Sale10b5
14,538$186.37$2.71M
Jun 16, 2026Meloy Charles AlvinFANG
Sale10b5
4,049$187.68$760K
Jun 9, 2026Plaumann Mark LawrenceFANG
Sale
500$196.50$98K

45 more transactions hidden

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