Mark L. Plaumann - 19 Jun 2025 Form 4 Insider Report for Diamondback Energy, Inc. (FANG)

Role: Director
Signature: /s/ Teresa L. Dick, as attorney-in-fact for Mark L. Plaumann
Issuer symbol: FANG
Transactions as of: 19 Jun 2025
Net transactions value: $0
Form type: 4
Filing time: 23 Jun 2025, 17:08:42 UTC
Previous filing: 22 May 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Plaumann Mark Lawrence	Director	500 WEST TEXAS AVENUE, SUITE 100, MIDLAND	/s/ Teresa L. Dick, as attorney-in-fact for Mark L. Plaumann	23 Jun 2025	0001290795

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	FANG	Common Stock	Other	$0	+2,965	+129%	$0.000000	5,267	19 Jun 2025	Direct	F1
holding	FANG	Common Stock						7,688	19 Jun 2025	By Greyhawke Capital Advisors LLC	F1, F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	An aggregate of 2,965 shares of the issuer's common stock was distributed by Greyhawke Capital Advisors LLC ("Greyhawke") in an in-kind distribution to Mr. Plaumann in connection with the amendment of the Greyhawke limited liability company agreement executed by the members and the manager of Greyhawke on June 19, 2025 during the issuer's open trading window (the "Amended Greyhawke LLC Agreement").
F2	Mr. Plaumann is a managing member of Whisper Manager LLC, which is the manager of Greyhawke, and holds a 50% membership interest in Greyhawke. In addition, the Amended Greyhawke LLC Agreement provides for certain special allocation of the issuer's securities held by Greyhawke to Mr. Plaumann. As a result, Mr. Plaumann is deemed to have both beneficial ownership and pecuniary interest in all of the issuer's securities held by Greyhawke.

Content

An aggregate of 2,965 shares of the issuer's common stock was distributed by Greyhawke Capital Advisors LLC ("Greyhawke") in an in-kind distribution to Mr. Plaumann in connection with the amendment of the Greyhawke limited liability company agreement executed by the members and the manager of Greyhawke on June 19, 2025 during the issuer's open trading window (the "Amended Greyhawke LLC Agreement").

Mr. Plaumann is a managing member of Whisper Manager LLC, which is the manager of Greyhawke, and holds a 50% membership interest in Greyhawke. In addition, the Amended Greyhawke LLC Agreement provides for certain special allocation of the issuer's securities held by Greyhawke to Mr. Plaumann. As a result, Mr. Plaumann is deemed to have both beneficial ownership and pecuniary interest in all of the issuer's securities held by Greyhawke.