Diamondback Energy, Inc. (FANG) insider buying and selling: no purchases, 59 sales

F1 On 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).

F2 The 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.

F3 Reduced by 5 shares to correct an administrative error in previous reporting of common stock held.

F1 On 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.

F1 On 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.

F1 On 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.

F1 Pursuant 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.

F1 Pursuant 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.

F1 Pursuant 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.

F1 Pursuant 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.

F3 Represents 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.

F2 These 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.

F1 The 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.

F2 These 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.

F3 The 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.

F4 The 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.

F5 The 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.

F1 The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Meloy on March 17, 2026.

F2 The 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.

F3 These 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.

F4 The 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.

F5 The 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.

F1 The 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.

F1 The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Meloy on August 13, 2025.

F4 The 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.

F3 These 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.

F5 The 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.

F6 The 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.

F1 The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Meloy on March 17, 2026.

F2 The 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.

F3 These 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.

F4 The 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.

F5 The 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.

F6 The 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.

F1 The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Meloy on March 17, 2026.

F2 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $182.645 per share to $183.64 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 and 5.

F3 These 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.

F4 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $183.65 per share to $184.58 per share, inclusive.

F5 The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $184.66 per share to $185.505 per share, inclusive.

F1 The 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.

F1 The 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.

F1 The 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.

F2 The 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.

F1 The 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.