SEC ownership of Diamondback Energy, Inc.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001539838.

Comparable stake leader

Greth Lyndal

Disclosed value leader

Greth Lyndal

Comparable rows

50/50

Latest evidence

16 Sep 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
50 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
Greth Lyndal
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
16 Sep 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001539838
Issuer location
Midland, TX

Ownership snapshot

Top shareholders of Diamondback Energy, Inc. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
Greth Lyndal
Disclosed value leader
Greth Lyndal
Comparable rows
50/50
Latest evidence
16 Sep 2026
3/4/5 13D/G 13F Lead comparable stake: 23% 13D/G row: Greth Lyndal Showing 1-8 of 50 holder rows.

Quick read

Greth Lyndal leads the comparable SEC ownership view at 23%.

50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Greth Lyndal's linked filing trail.
Comparable ownership Top 5
Greth Lyndal 23%
WELLINGTON MANAGEMENT GROUP LLP 5.8%
VANGUARD CAPITAL MANAGEMENT LLC 5.2%
SGF FANG Holdings, LP 23%
Charles A. Meloy 0.29%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Greth Lyndal
3/4/5 13D/G
10%+ Owner
23%
from 13D/G
$18,927,306,859
96,904,413 shares
mixed-class rows
-$5,769,888,181 16 Sep 2026
WELLINGTON MANAGEMENT GROUP LLP
13D/G 13F
Company
5.8%
$3,146,119,325
16,420,247 shares
$0 30 Jun 2026
VANGUARD CAPITAL MANAGEMENT LLC
13D/G 13F
Vanguard Capital Management · Company
5.2%
$2,907,716,328
14,701,028 shares
$0 31 Mar 2026
SGF FANG Holdings, LP
3/4/5
10%+ Owner
23%
$13,333,083,467
64,957,047 shares
-$8,736,536,501 16 Sep 2026
Charles A. Meloy
3/4/5
Director
0.29%
$144,395,183
821,454 shares
-$93,610,529 15 Sep 2026
Travis D. Stice
3/4/5
Director
0.13%
$63,827,832
355,041 shares
-$33,436,306 11 Sep 2026
Matthew Kaes Van'T Hof
3/4/5
Chief Executive Officer, Director
0.04%
$24,933,592
115,940 shares
-$9,498,463 20 Aug 2026
Teresa L. Dick
3/4/5
EVP Accounting, Assist. Sec.
0.03%
$15,908,550
75,755 shares
-$8,438,174 15 Sep 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$14,670,613,578.

Buys
$0
Insiders: 0
Sells
$14,670,613,578
Insiders: 12
Net
-$14,670,613,578
Shares: -74,943,104
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 74,943,104
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 36,459,859 $0 $7,483,637,576 -$7,483,637,576
3-6 0 20,171,262 $0 $4,118,195,122 -$4,118,195,122
6-9 0 15,915,519 $0 $2,708,540,701 -$2,708,540,701
9-12 0 2,396,464 $0 $360,240,179 -$360,240,179

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-20 of 26 reporting-owner rows connected to Diamondback Energy, Inc.. Open a relationship link for the CIK-to-CIK filing trail.

Rows
26
Largest Forms 3/4/5 holder
Greth Lyndal
Net 12M change
-$14,670,613,578
Latest report
16 Sep 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Greth Lyndal 10%+ Owner $18,927,306,859 -$5,769,888,181 -23% Filing P/S 16 Sep 2026
SGF FANG Holdings, LP 10%+ Owner $13,333,083,467 -$8,736,536,501 -40% Filing P/S 16 Sep 2026
Charles A. Meloy Director $144,395,183 -$93,610,529 -39% Median 15 Sep 2026
Travis D. Stice Director $63,827,832 -$33,436,306 -34% Mixed 11 Sep 2026
Matthew Kaes Van'T Hof Chief Executive Officer, Director $24,933,592 -$9,498,463 -28% Filing P/S 20 Aug 2026
Russell Pantermuehl Exec. VP & Chief Engineer $19,748,052 Mixed 07 Dec 2021
Teresa L. Dick EVP Accounting, Assist. Sec. $15,908,550 -$8,438,174 -35% Filing P/S 15 Sep 2026
Daniel N. Wesson Exec. VP & COO $15,234,302 -$6,792,905 -31% Filing P/S 20 Aug 2026
Matt Zmigrosky EVP, Chief Legal and Admin Off $7,801,845 -$8,903,779 -53% Filing P/S 15 Sep 2026
Albert Barkmann Exec. VP and Chief Engineer $4,199,208 -$1,343,713 -24% Median 10 Sep 2026
Jere W. Thompson III CFO, Executive VP $3,771,488 -$726,071 -16% Filing P/S 14 Aug 2026
Mark Lawrence Plaumann Director $3,678,424 -$308,827 -7.7% Mixed 21 Aug 2026
Thomas F. Hawkins Exec. VP - Special Projects $2,997,594 Mixed 31 Dec 2022
Melanie Montague Trent Director $2,974,563 Mixed 20 May 2026
David L. Houston Director $2,437,596 Mixed 06 Jun 2024
Vincent K. Brooks Director $2,301,286 Mixed 20 May 2026
Stephanie K. Mains Director $2,301,286 Mixed 20 May 2026
Michael P. Cross Director $2,166,191 Mixed 09 Jun 2022
Lance W. Robertson Director $1,977,702 Mixed 20 May 2026
Jennifer Soliman Exec. VP and Chief HR Officer $1,758,330 Mixed 24 Aug 2022

Recent insider transactions for Diamondback Energy, Inc.

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
SGF FANG Holdings, LP FANG Common Stock Sale -12.3% $1,863,694,090 $205.26 -9,079,675 64,957,047 16 Sep 2026 Direct
SGF FANG Holdings, LP FANG Common Stock Sale -12.3% $1,863,694,090 $205.26 -9,079,675 64,957,047 16 Sep 2026 Direct
SGF FANG Holdings, LP FANG Common Stock Sale -12.3% $1,863,694,090 $205.26 -9,079,675 64,957,047 16 Sep 2026 Direct
SGF FANG Holdings, LP FANG Common Stock Sale -12.3% $1,863,694,090 $205.26 -9,079,675 64,957,047 16 Sep 2026 Direct
Charles A. Meloy FANG Common Stock Gift 767.6% 25,000 28,257 16 Sep 2026 Direct
Charles A. Meloy FANG Common Stock Gift -100% -12,500 0 16 Sep 2026 Grady Allen Meloy 2011 Trust
Charles A. Meloy FANG Common Stock Gift -100% -12,500 0 16 Sep 2026 Katy Evans Meloy 2011 Trust
Matt Zmigrosky FANG Common Stock Sale -3.49% $281,848 $212.56 -1,326 36,705 15 Sep 2026 Direct
Teresa L. Dick FANG Common Stock Sale -6.19% $1,050,000 $210.00 -5,000 75,755 15 Sep 2026 Direct
Charles A. Meloy FANG Common Stock Gift 12,500 12,500 15 Sep 2026 Grady Allen Meloy 2011 Trust
Charles A. Meloy FANG Common Stock Gift 12,500 12,500 15 Sep 2026 Katy Evans Meloy 2011 Trust
Charles A. Meloy FANG Common Stock Gift -3.06% -25,000 793,197 15 Sep 2026 Wolfrock Energy, LLC
Travis D. Stice FANG Common Stock Sale -60.1% $15,323,272 $204.31 -75,000 49,727 11 Sep 2026 Direct
Matt Zmigrosky FANG Common Stock Tax liability -2.21% -861 38,031 10 Sep 2026 Direct
Albert Barkmann FANG Common Stock Tax liability -2.78% -682 23,889 10 Sep 2026 Direct
Mark L. Plaumann FANG Common Stock Sale -7.44% $210,577 $210.58 -1,000 12,437 21 Aug 2026 Direct
Matthew Kaes Van'T Hof FANG Common Stock Sale -7.94% $2,146,608 $214.66 -10,000 115,940 20 Aug 2026 Direct
Daniel N. Wesson FANG Common Stock Sale -9.58% $1,614,054 $215.21 -7,500 70,789 20 Aug 2026 Direct
Matt Zmigrosky FANG Common Stock Sale -6.04% $506,930 $202.77 -2,500 38,892 14 Aug 2026 Direct
Jere W. Thompson III FANG Common Stock Sale -2.64% $102,070 $204.14 -500 18,475 14 Aug 2026 Direct
Matthew Kaes Van'T Hof FANG Common Stock Sale -3.82% $1,012,316 $202.46 -5,000 125,940 11 Aug 2026 Direct
Charles A. Meloy FANG Common Stock Sale -3.91% $6,613,538 $198.41 -33,333 818,197 03 Aug 2026 Wolfrock Energy, LLC
Matthew Kaes Van'T Hof FANG Common Stock Gift -2% -2,674 130,940 17 Jun 2026 Direct
Charles A. Meloy FANG Common Stock Sale -8.91% $15,593,332 $187.12 -83,334 851,530 16 Jun 2026 Wolfrock Energy, LLC
Mark L. Plaumann FANG Common Stock Sale -3.59% $98,250 $196.50 -500 13,437 09 Jun 2026 Direct
Teresa L. Dick FANG Common Stock Sale -5.83% $1,025,000 $205.00 -5,000 80,755 04 Jun 2026 Direct
SGF FANG Holdings, LP FANG Common Stock Sale -11.9% $2,042,500,000 $204.25 -10,000,000 74,036,722 04 Jun 2026 Direct
SGF FANG Holdings, LP FANG Common Stock Sale -11.9% $2,042,500,000 $204.25 -10,000,000 74,036,722 04 Jun 2026 Direct
Matthew Kaes Van'T Hof FANG Common Stock Sale -10.1% $3,125,000 $208.33 -15,000 133,614 03 Jun 2026 Direct
Matt Zmigrosky FANG Common Stock Sale -10.8% $1,050,000 $210.00 -5,000 41,392 03 Jun 2026 Direct
Teresa L. Dick FANG Common Stock Sale -7.55% $1,406,301 $200.90 -7,000 85,755 02 Jun 2026 Direct
Matt Zmigrosky FANG Common Stock Sale -9.73% $1,002,700 $200.54 -5,000 46,392 01 Jun 2026 Direct
Melanie M. Trent FANG Common Stock Award 6.99% 982 15,039 20 May 2026 Direct
Rebecca A. Klein FANG Common Stock Award 19.1% 982 6,129 20 May 2026 Direct
Stephanie K. Mains FANG Common Stock Award 9.22% 982 11,635 20 May 2026 Direct
Travis D. Stice FANG Common Stock Award 0.79% 982 124,727 20 May 2026 Direct
Darin G. Holderness FANG Common Stock Award 54.1% 982 2,798 20 May 2026 Direct
Steven E. West FANG Common Stock Award 21.9% 982 5,466 20 May 2026 Direct
Mark L. Plaumann FANG Common Stock Award 7.58% 982 13,937 20 May 2026 Direct
Charles A. Meloy FANG Common Stock Award 43.2% 982 3,257 20 May 2026 Direct
Vincent K. Brooks FANG Common Stock Award 9.22% 982 11,635 20 May 2026 VKB Solutions, LLC
Frank D. Tsuru FANG Common Stock Award 13.7% 982 8,129 20 May 2026 Direct
Robert K. Reeves FANG Common Stock Award 19.3% 982 6,066 20 May 2026 Direct
Lance W. Robertson FANG Common Stock Award 10.9% 982 9,999 20 May 2026 Direct
Teresa L. Dick FANG Common Stock Sale -5.11% $1,035,000 $207.00 -5,000 92,755 19 May 2026 Direct
Albert Barkmann FANG Common Stock Sale -10.9% $612,112 $204.04 -3,000 24,571 15 May 2026 Direct
Jere W. Thompson III FANG Common Stock Sale -5.01% $203,160 $203.16 -1,000 18,975 15 May 2026 Direct
Teresa L. Dick FANG Common Stock Sale -4.87% $1,000,000 $200.00 -5,000 97,755 14 May 2026 Direct
Matt Zmigrosky FANG Common Stock Sale -8.87% $1,000,500 $200.10 -5,000 51,392 13 May 2026 Direct
Charles A. Meloy FANG Common Stock Sale -0.83% $1,485,578 $189.08 -7,857 934,864 08 May 2026 Wolfrock Energy, LLC
* marks a reported price that did not pass the local price check.
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