Diamondback Ener SEC Filings

SGF FANG Holdings, LP became the record holder of 101,686,727 shares of Diamondback Energy, Inc. common stock following an internal reorganization on August 13, 2025. The filing states that Lyndal Stephens Greth remains the ultimate beneficial owner and that the reorganization changed only the form, not the amount, of her ownership.

The reported stake represents 35.1% of the company's outstanding common stock based on 289,486,120 shares outstanding as of August 1, 2025. Several affiliated entities have exited the Section 13(d) reporting group and no longer beneficially own shares. The filing also notes that the Endeavor Stockholders have nominated four directors to the company’s board under a Stockholders Agreement.

Travis D. Stice, Executive Chairman and director of Diamondback Energy (FANG), reported multiple sales of common stock executed on 08/07/2025. The Form 4 shows disposals totaling 102,145 shares sold through vehicles tied to the Stice family, with weighted average sale prices reported in grouped ranges from about $140.91 to $147.51 per share. The filing also discloses continued indirect beneficial ownership of 419,271 shares held by Stice Investments, Ltd. Footnotes state the sold shares were held by TBS Legacy Investments, Ltd., whose limited partner interests are held by the Stice 2023 Children's Trust, and explain the trustee and management relationships that create indirect beneficial ownership.

Form 4 overview: Diamondback Energy, Inc. (ticker FANG) reported an insider transaction by director Mark L. Plaumann dated 06/19/2025. The filing shows an in-kind Code J distribution of 2,965 common shares from Greyhawke Capital Advisors LLC to Mr. Plaumann during an open trading window, executed at a stated price of $0.

Post-transaction ownership:

• Direct holdings: 5,267 shares (increased by 2,965)
• Indirect holdings: 7,688 shares held through Greyhawke, where Plaumann, via Whisper Manager LLC, is managing member and 50% owner
• Total beneficial ownership: 12,955 shares

Structural context: The shares moved from an affiliated LLC to the individual following amendments to Greyhawke’s limited-liability company agreement. Because the transfer was internal, no cash changed hands and the company issued no new shares; therefore, the transaction does not affect Diamondback’s share count or capital structure.

Investor takeaway: While the dollar value (≈US$0.5 million at recent prices) is modest relative to Diamondback’s market capitalisation, the filing signals a modest increase in direct insider alignment. However, because the shares were not purchased on the open market and resulted from an internal reallocation, the event is viewed as neutral to mildly positive for valuation or near-term trading sentiment.

Diamondback Energy, Inc. (FANG) – Form 4 insider transaction summary:

Director Charles A. Meloy, acting through Wolfrock Energy, LLC, executed three open-market sales of Diamondback Energy common stock on 17–18 June 2025 under a pre-established Rule 10b5-1 trading plan adopted 3 December 2024.

• 6,039 shares sold on 17 Jun 2025 at a weighted-average price of $155.2905
• 27 shares sold on 17 Jun 2025 at $156.02
• 87 shares sold on 18 Jun 2025 at $155.0275

Total shares disposed: 6,153, representing a cash value of roughly $0.95 million at the reported averages.

Following these transactions, Wolfrock Energy, LLC holds 1,078,864 FANG shares indirectly for Mr. Meloy, while he also owns 2,275 shares directly. The filing includes standard footnotes confirming the weighted-average pricing methodology and the multilayer ownership structure of Wolfrock Energy > CS Ventures, Ltd. > CSV Management Trust.

No derivative security activity was reported. The sales reduce Mr. Meloy’s indirect position by approximately 0.57 % (6,153 ÷ 1,085,017 total prior indirect shares), a modest change relative to his overall holdings. Because the trades were executed under a 10b5-1 plan, they were pre-scheduled and do not necessarily signal a change in insider sentiment.