Diamondback Energy

Latest Schedule 13D/13G filing per holder. Holders that reported falling below 5% are not shown. Index funds usually report once a year.

No 5% holder filings parsed yet for this company.

Open-market purchases and sales reported on Form 4. Grants, option exercises and tax withholding are excluded.

Every 8-K with Item 5.02 (departure, election or appointment of directors and officers). The text is the first paragraph of the item.

1. Sep 30, 2026

   In connection with a Board Stepdown (as defined in the Stockholders Agreement), and not due to any disagreement with the Company on any matter relating to the Company’s operations, policies or practices, Darin Holderness and Lance Robertson resigned from the Board on September 29, 2026 and September 30, 2026, respectively.

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2. May 20, 2026

   As part of the leadership transition plan previously announced by Diamondback Energy, Inc. (the “Company”) in its Current Report on Form 8-K filed with the Securities and Exchange Commission (the “SEC”) on February 20, 2025 (the “Original Form 8-K”), Travis D. Stice stepped down as Executive Chairman of the Board of Directors of the Company (the “Board”) and became non-executive Chairman of the Board, in each case effective as of May 20, 2026, the date of the Company’s 2026 Annual Meeting of Stockholders (the “2026 Annual Meeting”). His full biography and, to the extent applicable, the information required by Item 404(a) of Regulation S-K with respect to Mr. Stice, are included in the Company’s definitive proxy statement on Schedule 14A, filed by the Company with the SEC on April 9, 2026 (the “2026 Proxy Statement”), and are incorporated into this

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3. May 21, 2025

   As part of the leadership transition plan announced by Diamondback Energy, Inc. (the “Company”) in its Current Report on Form 8-K filed with the Securities and Exchange Commission (the “SEC”) on February 20, 2025 (the “Original Form 8-K”), Travis D. Stice stepped down as Chief Executive Officer of the Company and became Executive Chairman of the Board of Directors of the Company, in each case effective as of May 21, 2025, the date of the Company’s 2025 Annual Meeting of Stockholders (the “2025 Annual Meeting”). At the 2025 Annual Meeting, Mr. Stice was elected to continue to serve as a director of the Company until the 2026 Annual Meeting of Stockholders or until his successor is duly elected and qualified, as discussed in more detail in

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4. Feb 20, 2025

   On February 20, 2025, Diamondback Energy, Inc. (the “Company”) announced its leadership transition plan. Travis D. Stice intends to step down as Chief Executive Officer effective as of the Company’s 2025 Annual Meeting of Stockholders. At that time, Mr. Stice will transition from Chief Executive Officer to Executive Chairman of the Board of Directors of the Company (the “Board”), and Kaes Van’t Hof, current President and Chief Financial Officer of the Company, will succeed Mr. Stice as Chief Executive Officer and will be nominated for election to the Board at the Company’s 2025 Annual Meeting of Stockholders. Effective as of February 20, 2025, Jere W. Thompson III, current Executive Vice President of Strategy and Corporate Development of the Company, will assume the role of Executive Vice President and Chief Financial Officer. Mr.

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5. Feb 3, 2025

   On February 3, 2025, in accordance with the Second Amended and Restated Certificate of Incorporation of Diamondback Energy, Inc. (the “ Company ”), and the Fifth Amended and Restated Bylaws of the Company, the Board of Directors of the Company (the “ Board ”) increased the size of the Board by one director and appointed Darin G. Holderness to the resulting vacancy (the “ Appointment ”). Mr. Holderness will hold office until the 2025 annual meeting of the Company’s stockholders and his successor has been elected and qualified, or until his earlier death, resignation, retirement, disqualification or removal. Following the Appointment, the full Board consists of 13 directors. Additionally, Mr. Holderness was appointed to the Audit Committee of the Board. Mr.

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6. Sep 10, 2024

   Pursuant to the Merger Agreement and Stockholders Agreement, the Company and the former members of Endeavor who received Company Common Stock in the Acquisition mutually agreed to cause each of Lance Robertson, Charles Meloy and Robert K. Reeves to be appointed to the board of directors of the Company (the “ Board ”). On the Closing Date, in accordance with the Second Amended and Restated Certificate of Incorporation of the Company (as amended, the “ Charter ”) and the Fourth Amended and Restated Bylaws of the Company, the Board increased the size of the Board by three directors and appointed Mr. Robertson, Mr. Meloy and Mr. Reeves as members of the Board to the resulting vacancies. Mr. Robertson, Mr. Meloy and Mr.

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7. Mar 30, 2023

   On March 28, 2023, Michael P. Cross, who has been a member of the Board of Directors (the “Board”) of Diamondback Energy, Inc. (the “Company”) for over a decade since the Company’s initial public offering and who currently also serves on the Board’s Audit Committee, Compensation Committee, Nominating and Corporate Governance Committee and Safety, Sustainability and Corporate Responsibility Committee, informed the Company of his decision not to stand for re-election at the Company’s 2023 Annual Meeting of Stockholders (the “Annual Meeting”). Mr. Cross’ term as a director and committee member will expire immediately after the Annual Meeting. Mr. Cross’ decision not to stand for re-election is due to his retirement and not due to any disagreement with the Company on any matter relating to the Company’s operations, policies or practices. The Company is grateful for Mr.

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8. Jul 11, 2022

   Appointment of New Directors On July 7, 2022, in accordance with the Amended and Restated Certificate of Incorporation, as amended (the “Charter”) and the Second Amended and Restated Bylaws (the “Bylaws”) of Diamondback Energy, Inc. (the “Company”), the Board of Directors of the Company (the “Board”) appointed Rebecca A. Klein and Frank D. Tsuru as members of the Board. As provided in the Charter and the Bylaws, Ms. Klein and Mr. Tsuru will serve until the 2023 Annual Meeting of Stockholders of the Company (“2023 Annual Meeting”), or until she or he is re-elected or her or his successor has been elected and qualified or until her or his earlier death, resignation, removal or disqualification. Following the appointments of Ms. Klein and Mr. Tsuru to the Board, the full Board will consist of ten directors.

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9. Nov 30, 2021

   Retirement of Named Executive Officer and Consulting Agreement On November 30, 2021, Diamondback Energy, Inc. (“Diamondback”) announced that Russell Pantermuehl, Diamondback’s Executive Vice President and Chief Engineer and a named executive officer in Diamondback’s definitive proxy statement on Schedule 14A filed on April 23, 2021 (the “Proxy Statement”), will be retiring from his current role at Diamondback effective as of December 31, 2021 (the “Retirement Date”). At the same time, Mr. Pantermuehl will also retire from all positions he currently holds with Diamondback’s subsidiaries. Mr. Pantermuehl originally joined Diamondback in August 2011, prior to Diamondback’s initial public offering. Under the terms of Diamondback’s executive severance plan described in more detail in the Proxy Statement, participants in that plan, including Mr.

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10. Apr 8, 2020

    Director or officer change (Item 5.02). Open the filing for details.

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11. Sep 30, 2019

    Director or officer change (Item 5.02). Open the filing for details.

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12. Feb 28, 2019

    Director or officer change (Item 5.02). Open the filing for details.

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13. Apr 27, 2018

    Director or officer change (Item 5.02). Open the filing for details.

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14. Jul 18, 2017

    Director or officer change (Item 5.02). Open the filing for details.

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15. Mar 8, 2017

    Director or officer change (Item 5.02). Open the filing for details.

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Proxy statements (DEF 14A): 2026 · 2025 · 2024 · 2023 · 2022 · 2021

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