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Diamondback Energy, Inc. planned insider sales

In the last twelve months insiders at Diamondback Energy, Inc. filed 42 Form 144 notices of planned sales, 19.7 million shares worth $4.11 billion at the time of filing, from 12 sellers. The latest, filed 5 October 2026: Charles A. Meloy (director), 33,333 shares worth $6.1 million, planned for around 5 October 2026 through Goldman Sachs & Co. LLC.

FiledSellerRelationshipSharesValuePlanned saleSold, per Form 4BrokerHow acquiredFiling
5 October 2026Charles A. MeloyDirector33,333$6.1 million5 October 202633,333 shares from 5 October 2026Goldman Sachs & Co. LLCAcquired as consideration of merger or acquisitionForm 144
16 September 2026SGF FANG Holdings, LP10% Stockholder9,079,675$1.92 billion16 September 202618,159,350 shares from 16 September 2026Morgan Stanley & Co. LLCShares issued as consideration for the acquisition of Endeavor Parent, LLCForm 144
15 September 2026Zmigrosky MattOfficer1,326$281,84815 September 20261,326 shares from 15 September 2026Charles Schwab & Co., Inc.Restricted Stock LapseForm 144
15 September 2026Dick Teresa L.Officer5,000$1.1 million15 September 20265,000 shares from 15 September 2026Charles Schwab & Co., Inc.RSU / PSU - See RemarksForm 144
11 September 2026Stice Travis D.Officer, Director75,000$15.3 million11 September 202675,000 shares from 11 September 2026Charles Schwab & Co., Inc.RSU / PSUForm 144
21 August 2026Plaumann Mark LawrenceDirector1,000$210,57721 August 20261,000 shares from 21 August 2026Charles Schwab & Co., Inc.Restricted Stock LapseForm 144
20 August 2026Wesson Daniel NOfficer7,500$1.6 million20 August 20267,500 shares from 20 August 2026Charles Schwab & Co., Inc.RSU / PSUForm 144
20 August 2026Van't Hof Matthew KaesOfficer, Director10,000$2.1 million20 August 202610,000 shares from 20 August 2026Charles Schwab & Co., Inc.Performance Stock LapseForm 144
14 August 2026Thompson Jere W IIIOfficer500$102,07014 August 2026500 shares from 14 August 2026Charles Schwab & Co., Inc.PSU / RSUForm 144
14 August 2026Zmigrosky MattOfficer2,500$506,93014 August 20262,500 shares from 14 August 2026Charles Schwab & Co., Inc.RSU / PSU - See RemarksForm 144
11 August 2026Van't Hof Matthew KaesOfficer, Director5,000$1.0 million11 August 20265,000 shares from 11 August 2026Charles Schwab & Co., Inc.RSU / PSUForm 144
16 June 2026Charles A. MeloyDirector116,667$21.9 million16 June 2026116,667 shares from 16 June 2026Goldman Sachs & Co. LLCAcquired as consideration of merger or acquisitionForm 144
9 June 2026Plaumann Mark LawrenceDirector500$98,2509 June 2026500 shares from 9 June 2026Charles Schwab & Co., Inc.Restricted Stock LapseForm 144
4 June 2026Dick Teresa L.Officer5,000$1.0 million4 June 20265,000 shares from 4 June 2026Charles Schwab & Co., Inc.RSU / PSUForm 144
4 June 2026SGF FANG Holdings, LP10 Percent Holder10,000,000$2.07 billion4 June 202610,000,000 shares from 4 June 2026J.P. Morgan Securities LLCShares issued as consideration for acquisition of Endeavor Parent, LLC.Form 144
3 June 2026Van't Hof Matthew KaesOfficer, Director15,000$3.1 million3 June 202615,000 shares from 3 June 2026Charles Schwab & Co., Inc.RSU / PSUForm 144
2 June 2026Dick Teresa L.Officer7,000$1.4 million2 June 20267,000 shares from 2 June 2026Charles Schwab & Co., Inc.Performance Stock LapseForm 144
19 May 2026Dick Teresa L.Officer5,000$1.0 million19 May 20265,000 shares from 19 May 2026Charles Schwab & Co., Inc.Restricted Stock LapseForm 144
15 May 2026Thompson Jere W IIIOfficer1,000$203,16015 May 20261,000 shares from 15 May 2026Charles Schwab & Co., Inc.PSU / RSUForm 144
15 May 2026Barkmann AlbertOfficer3,000$612,11215 May 20263,000 shares from 15 May 2026Charles Schwab & Co., Inc.RSU; RSU / PSUForm 144
14 May 2026Dick Teresa L.Officer5,000$1.0 million14 May 20265,000 shares from 14 May 2026Charles Schwab & Co., Inc.Restricted Stock LapseForm 144
13 May 2026Zmigrosky MattOfficer15,000$3.0 million13 May 202615,000 shares from 13 May 2026Charles Schwab & Co., Inc.RSU / PSU - See RemarksForm 144
20 March 2026Wesson Daniel NOfficer5,000$959,77620 March 20265,000 shares from 20 March 2026Charles Schwab & Co., Inc.RSU / PSUForm 144
20 March 2026Dick Teresa L.Officer5,000$965,00020 March 20265,000 shares from 20 March 2026Charles Schwab & Co., Inc.Performance Stock LapseForm 144
18 March 2026Zmigrosky MattOfficer4,101$781,29318 March 20264,101 shares from 18 March 2026Charles Schwab & Co., Inc.RSU / PSUForm 144
18 March 2026Dick Teresa L.Officer5,000$950,00018 March 20265,000 shares from 18 March 2026Charles Schwab & Co., Inc.Performance Stock LapseForm 144
18 March 2026Steven E. WestDirector6,000$1.1 million18 March 20266,000 shares from 18 March 2026ROBERT W BAIRD & COOpen Market PurchasesForm 144
16 March 2026Thompson Jere W IIIOfficer750$136,85116 March 2026750 shares from 16 March 2026Charles Schwab & Co., Inc.PSU / RSUForm 144
13 March 2026Barkmann AlbertOfficer4,000$731,60013 March 20264,000 shares from 13 March 2026Charles Schwab & Co., Inc.RSU; RSU / PSUForm 144
13 March 2026Zmigrosky MattOfficer20,899$3.8 million13 March 202620,899 shares from 13 March 2026Charles Schwab & Co., Inc.RSU; RSU / PSUForm 144
9 March 2026Dick Teresa L.Officer2,500$462,5009 March 20262,500 shares from 9 March 2026Charles Schwab & Co., Inc.Performance Stock LapseForm 144
9 March 2026Chares A. MeloyDirector47,142$8.6 million9 March 202647,142 shares from 9 March 2026Goldman Sachs & Co. LLCAcquired as consideration of merger or acquisitionForm 144
6 March 2026Thompson Jere W IIIOfficer750$136,2606 March 2026750 shares from 6 March 2026Charles Schwab & Co., Inc.PSU / RSUForm 144
6 March 2026Dick Teresa L.Officer3,000$544,3736 March 20263,000 shares from 6 March 2026Charles Schwab & Co., Inc.RSU / PSUForm 144
6 March 2026Van't Hof Matthew KaesOfficer10,000$1.8 million6 March 202610,000 shares from 6 March 2026Charles Schwab & Co., Inc.RSU / PSU; Restricted Stock LapseForm 144
6 March 2026Wesson Daniel NOfficer20,000$3.6 million6 March 202620,000 shares from 6 March 2026Charles Schwab & Co., Inc.RSU / PSUForm 144
6 March 2026Stice Travis D.Officer, Director100,000$18.1 million6 March 2026100,000 shares from 6 March 2026Charles Schwab & Co., Inc.RSU / PSUForm 144
8 December 2025Charles A. MeloyDirector62,858$9.9 million8 December 202562,858 shares from 8 December 2025Goldman Sachs & Co. LLCAcquired as consideration of merger or acquisitionForm 144
26 November 2025Wesson Daniel NOfficer4,000$596,94826 November 20254,000 shares from 26 November 2025Charles Schwab & Co., Inc.RSU / PSUForm 144
14 November 2025Zmigrosky MattOfficer3,500$518,63014 November 20253,500 shares from 14 November 2025Charles Schwab & Co., Inc.Performance Stock LapseForm 144
13 November 2025Charles A. MeloyDirector34,000$4.9 million13 November 2025377,911 shares from 4 December 2025Goldman Sachs & Co. LLCAcquired as consideration of merger or acquisitionForm 144
12 November 2025Thompson Jere W IIIOfficer1,000$147,73011 November 20251,000 shares from 11 November 2025Charles Schwab & Co., Inc.PSU / RSUForm 144
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was.
Read moreValue is the filer's own aggregate market value. Sold, per Form 4: the same seller's open-market sales on Form 4 from the notice's date to 90 days after, added up, as they appear on the insiders page; a holder who files no Form 4, such as some large holders, never shows one. What is a Form 144?