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Diamondback Energy, Inc. (FANG) director Mark Lawrence Plaumann has filed a notice of proposed sale under Rule 144 for up to 1,000 shares of common stock held at Charles Schwab & Co., Inc., with an indicated aggregate market value of $210,577.00 and an intended sale date of 08/21/2026. These shares were acquired through equity compensation via restricted stock lapses between 2018 and 2020. In the prior three months, Plaumann sold 500 shares for total proceeds of $98,250.00.
Diamondback Energy, Inc. (FANG) insider Matthew Kaes Van't Hof has filed a Rule 144 notice to sell up to 10,000 shares of common stock through Charles Schwab & Co., Inc., with an aggregate market value of $2,146,608.00, with a proposed sale date of 08/20/2026 on NASDAQ. The shares were acquired on 03/01/2024 via a performance stock lapse as equity compensation. The filing also reports prior sales of 15,000 shares on 06/03/2026 for $3,125,000.00 and 5,000 shares on 08/11/2026 for $1,012,316.00.
Diamondback Energy, Inc. (FANG) is the issuer of common stock that Daniel N. Wesson, identified as an officer, has filed a notice to sell under Rule 144. The notice covers a proposed sale of 7,500 shares of Diamondback Energy common stock through Charles Schwab & Co., Inc. on NASDAQ, with an approximate aggregate market value of $1,614,054 as of the filing. These shares relate to equity compensation in the form of RSU/PSU awards with tranches of 1,337, 2,267, and 3,896 shares tied to dates in 2024, 2025, and 2026.
Diamondback Energy, Inc. executive Matt Zmigrosky, EVP, Chief Legal and Administrative Officer, reported a sale of 2,500 shares of Common Stock on 2026-08-14. The weighted average sale price was $202.7721 per share, with individual trades executed between $202.6701 and $202.89. After this transaction, he directly holds 38,892 shares of Diamondback Energy common stock.
Diamondback Energy, Inc. (FANG) reported that its CFO and Executive Vice President, Jere W. Thompson III, sold 500 shares of Common Stock on 2026-08-14 at an average price of $204.1401 per share. Following this open-market sale, he directly owns 18,475 shares of Diamondback Energy common stock.
Jere W. Thompson III, an affiliate of Diamondback Energy, Inc., filed to sell up to 500 shares of Diamondback common stock through Charles Schwab & Co., Inc. on or after 08/14/2026, with an approximate aggregate market value of $102,070.00. The filing also notes a prior sale of 1,000 shares of Diamondback common stock on 05/15/2026 for total proceeds of $203,160.00, and references 500 shares previously acquired as equity compensation in the form of PSU/RSU awards on 03/01/2025.
Diamondback Energy, Inc. insider Matt Zmigrosky filed to sell 2,500 shares of common stock through Charles Schwab & Co., Inc., with an approximate aggregate market value of $506,930.00, expected around August 14, 2026 on NASDAQ. The shares derive from RSU/PSU equity compensation granted on May 28, 2020. In the prior three months, Zmigrosky reported selling 5,000 shares for $1,002,701.00 on June 1, 2026 and 5,000 shares for $1,050,000.00 on June 3, 2026.
Wellington Management Group LLP and affiliated entities report beneficial ownership of Diamondback Energy, Inc. common stock. As of June 30, 2026, they collectively report beneficial ownership of 16,420,247 shares of common stock, representing 5.84% of the class.
The group reports 0 shares with sole voting or dispositive power and 16,139,896 shares with shared voting power, with up to 16,420,247 shares subject to shared dispositive power across the entities. The securities are owned of record by clients of one or more Wellington investment advisers, which have the right to receive dividends and sale proceeds. No individual client is reported to hold more than five percent of the class.
Diamondback Energy, Inc. director and Chief Executive Officer Matthew Kaes Van't Hof reported selling 5,000 shares of common stock on 2026-08-11 in a sale categorized as an open market or private transaction. The shares were sold at a weighted average price of $202.4632 per share, with individual sale prices ranging from $202.325 to $202.625 per share. Following this transaction, Van't Hof directly holds 125,940 shares of Diamondback Energy common stock.
Diamondback Energy, Inc. received a notice from insider Matthew Kaes Van't Hof of a planned sale of 5,000 shares of common stock through Charles Schwab & Co., Inc. The proposed sale, related to RSU/PSU equity compensation granted on 03/01/2024, has an indicated aggregate market value of $1,012,316.00 and is listed for execution on 08/11/2026 on NASDAQ. Over the past three months, Van't Hof previously sold 15,000 shares of Diamondback Energy common stock for an aggregate value of $3,125,000.00.