SGF FANG Holdings, LP - 13 Aug 2025 Form 3 Insider Report for Diamondback Energy, Inc. (FANG)

Role: 10%+ Owner
Signature: /s/ Kevin T. Keen, Attorney in fact
Issuer symbol: FANG
Transactions as of: 13 Aug 2025
Net transactions value: $0
Form type: 3
Filing time: 15 Aug 2025, 20:00:48 UTC
Next filing: 02 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
SGF FANG Holdings, LP	10%+ Owner	C/O KEVIN T. KEEN, 8111 DOUGLAS AVENUE, SUITE 1200, DALLAS	/s/ Kevin T. Keen, Attorney in fact	15 Aug 2025	0002080063

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	FANG	Common Stock						101,686,727	13 Aug 2025	Direct	F1

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

Explanation of Responses:

Id	Content
F1	In connection with an internal reorganization among entities controlled by Lyndal Stephens Greth ("Mrs. Stephens Greth") that streamlined Mrs. Stephens Greth's share ownership structure, SGF FANG Holdings, LP became the record holder of 101,686,727 shares of Common Stock, par value $0.01 per share (the "Company Common Stock"), of Diamondback Energy, Inc., a Delaware corporation, on August 13, 2025 (the "Reorganization") as reported on the Schedule 13D/A filed with the Securities and Exchange Commission by Mrs. Stephens Greth and certain other entities she controls on August 15, 2025. Mrs. Stephens Greth was, and following the Reorganization continues to be, the ultimate beneficial owner of the Company Common Stock held of record by SGF FANG Holdings, LP. Mrs. Stephens Greth disclaims beneficial ownership over any of the shares reported on this Form 3 except to the extent of her pecuniary interest therein.

Content

In connection with an internal reorganization among entities controlled by Lyndal Stephens Greth ("Mrs. Stephens Greth") that streamlined Mrs. Stephens Greth's share ownership structure, SGF FANG Holdings, LP became the record holder of 101,686,727 shares of Common Stock, par value $0.01 per share (the "Company Common Stock"), of Diamondback Energy, Inc., a Delaware corporation, on August 13, 2025 (the "Reorganization") as reported on the Schedule 13D/A filed with the Securities and Exchange Commission by Mrs. Stephens Greth and certain other entities she controls on August 15, 2025. Mrs. Stephens Greth was, and following the Reorganization continues to be, the ultimate beneficial owner of the Company Common Stock held of record by SGF FANG Holdings, LP. Mrs. Stephens Greth disclaims beneficial ownership over any of the shares reported on this Form 3 except to the extent of her pecuniary interest therein.