Open-market purchases and sales reported on SEC Forms 4 and 5, with each filing and its footnotes.
Since Oct 4, 2025
Transactions
92
Purchases
0
Sales
92
Purchase value
$0.00
Sale value
$7.04B
Values are shares multiplied by reported price when both were supplied, each trade counted once however many filers reported it.
Greth Lyndal10% owner
SGF FANG Holdings, LP10% owner
4
Filed Sep 17, 2026Period of report Sep 16, 20260001140361-26-037010
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleSep 16, 2026
Common StockF1
9,079,675
$205.26
$1.86B
64,957,047
Direct
Filing footnotes · 1
F1On September 16, 2026, SGF FANG Holdings, LP, a Delaware limited partnership, sold 9,079,675 shares of common stock of Diamondback Energy, Inc., par value $0.01 per share, pursuant to Rule 144 under the Securities Act of 1933, as amended.
Filed Sep 17, 2026Period of report Sep 16, 20260001140361-26-037009
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleSep 16, 2026
Common StockF1
9,079,675
$205.26
Zmigrosky MattEVP, Chief Legal and Admin Off
4
Filed Sep 17, 2026Period of report Sep 15, 20260001539838-26-000166
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleSep 15, 2026
Common Stock
1,326
$212.5554
$281.85K
36,705
Direct
Dick Teresa L.EVP Accounting, Assist. Sec.
4
Filed Sep 17, 2026Period of report Sep 15, 20260001539838-26-000165
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleSep 15, 2026
Common Stock
5,000
$210.00
$1.05M
75,755
Direct
Stice Travis D.Director
4
Filed Sep 14, 2026Period of report Sep 11, 20260001539838-26-000160
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleSep 11, 2026
Common StockF1
75,000
$204.3103
$15.32M
49,727
Direct
Plaumann Mark LawrenceDirector
4
Filed Aug 24, 2026Period of report Aug 21, 20260001539838-26-000152
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleAug 21, 2026
Common Stock
1,000
$210.5766
$210.58K
12,437
Direct
Van't Hof Matthew KaesDirector · Chief Executive Officer
4
Filed Aug 24, 2026Period of report Aug 20, 20260001539838-26-000154
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleAug 20, 2026
Common StockF1
9,500
$214.64
$2.04M
116,440
Direct
Wesson Daniel NExec. VP & COO
4
Filed Aug 24, 2026Period of report Aug 20, 20260001539838-26-000153
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleAug 20, 2026
Common StockF1
7,500
$215.2072
$1.61M
70,789
Direct
Zmigrosky MattEVP, Chief Legal and Admin Off
4
Filed Aug 17, 2026Period of report Aug 14, 20260001539838-26-000148
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleAug 14, 2026
Common StockF1
2,500
$202.7721
$506.93K
38,892
Direct
Thompson Jere W IIICFO, Executive VP
4
Filed Aug 17, 2026Period of report Aug 14, 20260001539838-26-000147
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleAug 14, 2026
Common Stock
500
$204.1401
$102.07K
18,475
Direct
Van't Hof Matthew KaesDirector · Chief Executive Officer
4
Filed Aug 12, 2026Period of report Aug 11, 20260001539838-26-000144
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleAug 11, 2026
Common StockF1
5,000
$202.4632
$1.01M
125,940
Direct
Meloy Charles AlvinDirector
4Rule 10b5-1 plan disclosed
Filed Aug 4, 2026Period of report Aug 3, 20260001539838-26-000139
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
Sale
Meloy Charles AlvinDirector
4Rule 10b5-1 plan disclosed
Filed Jun 17, 2026Period of report Jun 16, 20260001333454-26-000003
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
Sale
Plaumann Mark LawrenceDirector
4
Filed Jun 10, 2026Period of report Jun 9, 20260001539838-26-000128
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleJun 9, 2026
Common Stock
500
$196.50
$98.25K
13,437
Direct
Dick Teresa L.CAO, Exec. VP, Assist. Sec.
4
Filed Jun 8, 2026Period of report Jun 4, 20260001539838-26-000126
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleJun 4, 2026
Common Stock
5,000
$205.00
$1.03M
80,755
Direct
Greth Lyndal10% owner
SGF FANG Holdings, LP10% owner
4
Filed Jun 5, 2026Period of report Jun 4, 20260001140361-26-024262
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleJun 4, 2026
Common StockF1
10,000,000
$204.25
Van't Hof Matthew KaesDirector · Chief Executive Officer
4
Filed Jun 4, 2026Period of report Jun 3, 20260001539838-26-000124
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleJun 3, 2026
Common Stock
5,000
$205.00
$1.03M
143,614
Direct
Zmigrosky MattEVP, Chief Legal and Admin Off
4
Filed Jun 4, 2026Period of report Jun 3, 20260001539838-26-000123
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleJun 3, 2026
Common Stock
5,000
$210.00
$1.05M
41,392
Direct
Dick Teresa L.CAO, Exec. VP, Assist. Sec.
4
Filed Jun 2, 2026Period of report Jun 2, 20260001539838-26-000120
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleJun 2, 2026
Common Stock
7,000
$200.9001
$1.41M
85,755
Direct
Zmigrosky MattEVP, Chief Legal and Admin Off
4
Filed Jun 2, 2026Period of report Jun 1, 20260001539838-26-000119
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleJun 1, 2026
Common Stock
5,000
$200.5401
$1.00M
46,392
Direct
Dick Teresa L.CAO, Exec. VP, Assist. Sec.
4
Filed May 21, 2026Period of report May 19, 20260001539838-26-000108
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleMay 19, 2026
Common Stock
5,000
$207.00
$1.04M
92,755
Direct
Barkmann AlbertExec. VP and Chief Engineer
4
Filed May 19, 2026Period of report May 15, 20260001539838-26-000087
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleMay 15, 2026
Common StockF1
3,000
$204.0375
$612.11K
24,571
Direct
Thompson Jere W IIICFO, Executive VP
4
Filed May 19, 2026Period of report May 15, 20260001539838-26-000086
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleMay 15, 2026
Common Stock
1,000
$203.1602
$203.16K
18,975
Direct
Dick Teresa L.CAO, Exec. VP, Assist. Sec.
4
Filed May 14, 2026Period of report May 14, 20260001539838-26-000082
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleMay 14, 2026
Common Stock
5,000
$200.00
$1.00M
97,755
Direct
Zmigrosky MattEVP, Chief Legal and Admin Off
4
Filed May 14, 2026Period of report May 13, 20260001539838-26-000083
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleMay 13, 2026
Common Stock
5,000
$200.1001
$1.00M
51,392
Direct
Meloy Charles AlvinDirector
4Rule 10b5-1 plan disclosed
Filed May 11, 2026Period of report May 7, 20260001539838-26-000079
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
Sale
Meloy Charles AlvinDirector
4Rule 10b5-1 plan disclosed
Filed Apr 8, 2026Period of report Apr 6, 20260001539838-26-000065
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
Sale
Wesson Daniel NExec. VP & COO
4
Filed Mar 24, 2026Period of report Mar 20, 20260001539838-26-000062
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleMar 20, 2026
Common StockF1
5,000
$191.9552
$959.78K
78,289
Direct
Dick Teresa L.CAO, Exec. VP, Assist. Sec.
4
Filed Mar 24, 2026Period of report Mar 20, 20260001539838-26-000061
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleMar 20, 2026
Common Stock
5,000
$193.00
$965.00K
102,755
Direct
West Steven eDirector
4
Filed Mar 19, 2026Period of report Mar 18, 20260001539838-26-000058
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleMar 18, 2026
Common StockF1F2
6,000
$188.3548
$1.13M
4,484
Zmigrosky MattEVP, Chief Legal and Admin Off
4
Filed Mar 19, 2026Period of report Mar 18, 20260001539838-26-000056
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleMar 18, 2026
Common StockF1
4,101
$190.5128
$781.29K
56,392
Direct
Dick Teresa L.CAO, Exec. VP, Assist. Sec.
4
Filed Mar 19, 2026Period of report Mar 18, 20260001539838-26-000055
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleMar 18, 2026
Common Stock
5,000
$190.00
$950.00K
107,755
Direct
Thompson Jere W IIICFO, Executive VP
4
Filed Mar 17, 2026Period of report Mar 16, 20260001539838-26-000051
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleMar 16, 2026
Common Stock
750
$182.4679
$136.85K
19,975
Direct
Zmigrosky MattEVP, Chief Legal and Admin Off
4
Filed Mar 17, 2026Period of report Mar 13, 20260001539838-26-000052
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleMar 13, 2026
Common StockF1
20,899
$180.0027
$3.76M
60,493
Direct
Barkmann AlbertExec. VP and Chief Engineer
4
Filed Mar 17, 2026Period of report Mar 13, 20260001539838-26-000050
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleMar 13, 2026
Common Stock
4,000
$182.90
$731.60K
27,571
Direct
Greth Lyndal10% owner
SGF FANG Holdings, LP10% owner
4
Filed Mar 16, 2026Period of report Mar 12, 20260001140361-26-009622
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleMar 12, 2026
Common StockF1F2F3
Meloy Charles AlvinDirector
4Rule 10b5-1 plan disclosed
Filed Mar 11, 2026Period of report Mar 9, 20260001539838-26-000046
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
Sale
Dick Teresa L.CAO, Exec. VP, Assist. Sec.
4
Filed Mar 10, 2026Period of report Mar 6, 20260001539838-26-000040
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleMar 9, 2026
Common Stock
2,500
$185.00
$462.50K
112,755
Direct
Thompson Jere W IIICFO, Executive VP
4
Filed Mar 10, 2026Period of report Mar 6, 20260001539838-26-000044
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleMar 6, 2026
Common Stock
750
$181.68
$136.26K
20,725
Direct
Wesson Daniel NExec. VP & COO
4
Filed Mar 10, 2026Period of report Mar 6, 20260001539838-26-000043
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleMar 6, 2026
Common StockF1
19,800
$181.0996
$3.59M
83,489
Direct
Stice Travis D.Director · Executive Chairman
4
Filed Mar 10, 2026Period of report Mar 6, 20260001539838-26-000042
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleMar 6, 2026
Common StockF1F2
62,808
$181.1512
$11.38M
306,463
Van't Hof Matthew KaesDirector · Chief Executive Officer
4
Filed Mar 10, 2026Period of report Mar 6, 20260001539838-26-000041
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleMar 6, 2026
Common StockF1
10,000
$180.8399
$1.81M
148,614
Direct
Greth Lyndal10% owner
SGF FANG Holdings, LP10% owner
4
Filed Mar 5, 2026Period of report Mar 4, 20260001140361-26-008075
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleMar 4, 2026
Common StockF1
1,000,000
$176.71
Greth Lyndal10% owner
SGF FANG Holdings, LP10% owner
4
Filed Feb 5, 2026Period of report Feb 3, 20260001140361-26-003884
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleFeb 4, 2026
Common StockF1
1,000,000
$168.99
Meloy Charles AlvinDirector
4Rule 10b5-1 plan disclosed
Filed Feb 4, 2026Period of report Feb 2, 20260001333454-26-000002
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
Sale
Meloy Charles AlvinDirector
4Rule 10b5-1 plan disclosed
Filed Dec 10, 2025Period of report Dec 8, 20250001333454-25-000010
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
Sale
Meloy Charles AlvinDirector
4
Filed Dec 8, 2025Period of report Dec 4, 20250001333454-25-000007
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleDec 4, 2025
Common StockF3F2
377,911
$138.61
$52.38M
1,044,864
Greth Lyndal10% owner
SGF FANG Holdings, LP10% owner
4
Filed Dec 2, 2025Period of report Nov 28, 20250001140361-25-044029
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleNov 28, 2025
Common StockF1
2,000,000
$152.59
Wesson Daniel NExec. VP & COO
4
Filed Dec 1, 2025Period of report Nov 26, 20250001805429-25-000004
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleNov 26, 2025
Common StockF1
4,000
$149.2369
$596.95K
80,117
Direct
Zmigrosky MattEVP, Chief Legal and Admin Off
4
Filed Nov 18, 2025Period of report Nov 14, 20250001767328-25-000008
Transaction
Security
Shares
Price
ValueValue (shares × price)
Held after
Ownership
SaleNov 14, 2025
Common Stock
3,500
$148.1801
$518.63K
63,534
Direct
P and S transaction codes only. Grants, gifts, option exercises, tax withholding, and Form 144 notices are not counted as purchases or sales. A row whose filed price fails a plausibility check, or that is not common stock, is listed but left out of the values; a trade reported by several filers is counted once.
$1.86B
64,957,047
Direct
Filing footnotes · 1
F1On September 16, 2026, SGF FANG Holdings, LP, a Delaware limited partnership, sold 9,079,675 shares of common stock of Diamondback Energy, Inc., par value $0.01 per share, pursuant to Rule 144 under the Securities Act of 1933, as amended.
F1The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $203.77 per share to $204.715 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F2These securities are held by Stice Investments, Ltd., which is managed by Stice Management, LLC, its general partner. Mr. Stice and his spouse hold 100% of the membership interests in Stice Management, LLC, of which Mr. Stice is the manager.
F1The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $214.015 per share to $215.01 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote and in footnote 2.
F2The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $215.045 per share to $215.07 per share, inclusive.
F1The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $214.905 per share to $215.49 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F1The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $202.6701 per share to $202.89 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F1The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $202.325 per share to $202.625 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F1The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Meloy on March 17, 2026.
F2The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $196.34 per share to $197.34 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote and in footnotes 4 through 6.
F3These securities are held directly by Wolfrock Energy, LLC, a Texas limited liability company whose sole member is CS Ventures, Ltd. CS Ventures, Ltd. is controlled by its general partner, Meloy Management, LLC, which is controlled by the Reporting Person.
F4The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $197.35 per share to $198.35 per share, inclusive.
F5The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $198.36 per share to $199.36 per share, inclusive.
F6The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $199.3825 per share to $199.495 per share, inclusive.
F1The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Meloy on March 17, 2026.
F2The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $185.60 per share to $186.60 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote and in footnotes 4 and 5.
F3These securities are held directly by Wolfrock Energy, LLC, a Texas limited liability company whose sole member is CS Ventures, Ltd. CS Ventures, Ltd. is controlled by its general partner, Meloy Management, LLC, which is controlled by the Reporting Person.
F4The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $186.605 per share to $187.59 per share, inclusive.
F5The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $187.61 per share to $187.80 per share, inclusive.
F1On June 4, 2026, SGF FANG Holdings, LP, a Delaware limited partnership, sold 10,000,000 shares of common stock of Diamondback Energy, Inc., par value $0.01 per share, pursuant to Rule 144 under the Securities Act of 1933, as amended.
F1The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $204.00 per share to $204.07 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F1The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Meloy on August 13, 2025.
F2The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $186.725 per share to $187.72 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote and in footnotes 4 through 9.
F3These securities are held directly by Wolfrock Energy, LLC, a Texas limited liability company whose sole member is CS Ventures, Ltd. CS Ventures, Ltd. is controlled by its general partner, Meloy Management, LLC, which is controlled by the Reporting Person.
F4The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $187.73 per share to $188.725 per share, inclusive.
F5The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $188.75 per share to $189.75 per share, inclusive.
F6The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $189.76 per share to $190.715 per share, inclusive.
F7The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $187.18 per share to $188.165 per share, inclusive.
F8The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $188.19 per share to $189.19 per share, inclusive.
F9The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $189.195 per share to $190.195 per share, inclusive.
F1The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Meloy on August 13, 2025.
F2The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $192.68 per share to $193.64 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote and in footnotes 4 through 9.
F3These securities are held directly by Wolfrock Energy, LLC, a Texas limited liability company whose sole member is CS Ventures, Ltd. CS Ventures, Ltd. is controlled by its general partner, Meloy Management, LLC, which is controlled by the Reporting Person.
F4The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $193.72 per share to $194.695 per share, inclusive.
F5The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $195.00 per share to $195.48 per share, inclusive.
F6The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $195.18 per share to $196.14 per share, inclusive.
F7The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $196.19 per share to $197.185 per share, inclusive.
F8The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $197.19 per share to $198.18 per share, inclusive.
F9The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $198.19 per share to $199.11 per share, inclusive.
F1The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $191.9301 per share to $192.111 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F1The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $187.95 per share to $188.69 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F2Reflects the transfer of 3,068 shares of Common Stock in a transfer exempt from reporting pursuant to Rule 16a-12.
F1The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $190.48 per share to $190.68 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F1The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $180.00 per share to $180.085 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F1On March 12, 2026, SGF FANG Holdings, LP, a Delaware limited partnership, sold 12,650,000 shares of common stock of Diamondback Energy, Inc. (the "Company"), par value $0.01 per share (the "Common Stock"), in an underwritten public offering pursuant to the Company's Registration Statement on Form S-3 (File No. 333-282225).
F2The actual sale price was $170.18875. The price reported in Table I, Column 4 has been rounded to $170.1888 because the EDGAR filing system does not accommodate a fifth decimal place.
F3Reduced by 5 shares to correct an administrative error in previous reporting of common stock held.
F1The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan.
F10The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $176.505 per share to $177.42 per share, inclusive.
F11The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $177.54 per share to $178.525 per share, inclusive.
F12The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $178.57 per share to $179.53 per share, inclusive.
F13The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $179.615 per share to $180.57 per share, inclusive.
F14The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $180.69 per share to $181.655 per share, inclusive.
F15The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $181.695 per share to $182.515 per share, inclusive.
F2The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $179.915 per share to $180.805 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote and in footnotes 4 through 15.
F3These securities are held directly by Wolfrock Energy, LLC, a Texas limited liability company whose sole member is CS Ventures, Ltd. CS Ventures, Ltd. is controlled by its general partner, Meloy Management, LLC, which is controlled by the Reporting Person.
F4The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $180.975 per share to $181.970 per share, inclusive.
F5The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $181.975 per share to $182.970 per share, inclusive.
F6The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $183.00 per share to $183.99 per share, inclusive.
F7The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $184.010 per share to $184.945 per share, inclusive.
F8The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $185.015 per share to $186.005 per share, inclusive.
F9The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $186.05 per share to $186.31 per share, inclusive.
F1The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $181.36 per share to $181.59 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F1The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $180.745 per share to $181.53 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F1The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $180.59 per share to $181.56 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote and in footnote 3.
F2These securities are held by Stice Investments, Ltd., which is managed by Stice Management, LLC, its general partner. Mr. Stice and his spouse hold 100% of the membership interests in Stice Management, LLC, of which Mr. Stice is the manager.
F3The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $181.60 per share to $181.77 per share, inclusive.
F4The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $180.57 per share to $181.56 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote and in footnote 5.
F5The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $181.57 per share to $181.785 per share, inclusive.
F1The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $180.665 per share to $181.15 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F1Pursuant to a letter agreement, dated November 28, 2025, by and between Diamondback Energy, Inc., a Delaware corporation (the "Company"), and SGF FANG Holdings, LP, a Delaware limited partnership ("SGF FANG"), SGF FANG sold 1,000,000 shares of common stock to the Company on March 4, 2026 at the March 4, 2026 closing price of the common stock on Nasdaq. Mrs. Greth is the ultimate beneficial owner of the shares held of record by SGF FANG and indirectly controls SGF Capital LLC, its general partner.
F1Pursuant to a letter agreement, dated November 28, 2025, by and between Diamondback Energy, Inc., a Delaware corporation (the "Company"), and SGF FANG Holdings, LP, a Delaware limited partnership ("SGF FANG"), SGF FANG sold 1,000,000 shares of common stock to the Company on February 3, 2026 at the February 3, 2026 closing price of the common stock on Nasdaq and an additional 1,000,000 shares of common stock to the Company on February 4, 2026 at the February 4, 2026 closing price of the common stock on Nasdaq. Mrs. Greth is the ultimate beneficial owner of the shares held of record by SGF FANG and indirectly controls SGF Capital, LLC, its general partner.
F1The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Meloy on August 13, 2025.
F2The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $160.00 per share to $160.43 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F3These securities are held directly by Wolfrock Energy, LLC, a Texas limited liability company whose sole member is CS Ventures, Ltd. CS Ventures, Ltd. is controlled by its general partner, Meloy Management, LLC, which is controlled by the Reporting Person.
F4The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $160.00 per share to $160.99 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F5The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $161.00 per share to $161.90 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F6The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $162.00 per share to $162.885 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F1The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Meloy on August 13, 2025.
F2The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $160.07 per share to $160.19 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F3These securities are held directly by Wolfrock Energy, LLC, a Texas limited liability company whose sole member is CS Ventures, Ltd. CS Ventures, Ltd. is controlled by its general partner, Meloy Management, LLC, which is controlled by the Reporting Person.
F1Represents a transfer of limited partnership interests in CS Ventures Ltd., which is the sole member of Wolfrock Energy LLC, to trusts for the benefit of the Reporting Person's children for no consideration. No shares of the Issuer's common stock were disposed of in connection with this transfer.
F2These securities are held directly by Wolfrock Energy, LLC, a Texas limited liability company whose sole member is CS Ventures, Ltd. CS Ventures, Ltd. is controlled by its general partner, Meloy Management, LLC, which is controlled by the Reporting Person.
F3Represents a transfer of limited partnership interests in CS Ventures Ltd., which is the sole member of Wolfrock Energy LLC, to trusts for the benefit of the Reporting Person's children. No shares of the Issuer's common stock were disposed of in connection with this transfer.
F1Pursuant to a letter agreement, dated November 28, 2025, by and between Diamondback Energy, Inc., a Delaware corporation (the "Company"), and SGF FANG Holdings, LP, a Delaware limited partnership ("SGF FANG"), SGF FANG sold 2,000,000 shares of common stock to the Company at the November 28, 2025 closing price of the common stock on Nasdaq. Mrs. Greth is the ultimate beneficial owner of the shares held of record by SGF FANG and indirectly controls SGF Capital, LLC, its general partner.
F1The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $149.2332 per share to $149.3150 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
