[Form 3] Diamondback Energy, Inc. Initial Statement of Beneficial Ownership

Rhea-AI Filing Summary

SGF FANG Holdings, LP became the record holder of 101,686,727 shares of Diamondback Energy, Inc. (ticker FANG) on August 13, 2025 following an internal reorganization among entities controlled by Lyndal Stephens Greth. The Form 3 reports that the shares are common stock with a $0.01 par value and that the reorganization was described in a Schedule 13D/A filed on August 15, 2025.

The filing states that Mrs. Stephens Greth is the ultimate beneficial owner of the shares held by SGF FANG Holdings, LP but expressly disclaims beneficial ownership except to the extent of her pecuniary interest. The Form 3 was signed by Kevin T. Keen as attorney-in-fact on behalf of the reporting person on August 15, 2025.

Positive

• Record consolidation: 101,686,727 shares were centralized under SGF FANG Holdings, LP, simplifying the ownership record.
• Clear ultimate ownership: Filing states Lyndal Stephens Greth remains the ultimate beneficial owner of the shares.
• Compliance: Form 3 was filed and signed, fulfilling Section 16(a) reporting obligations after the reorganization.

Negative

• None.

Insights

Securities Analyst

TL;DR: A record-holder change consolidated 101.7M Diamondback shares under an entity linked to Lyndal Stephens Greth; beneficial ownership remains with her.

The Form 3 documents an internal reorganization that moved 101,686,727 shares of common stock to SGF FANG Holdings, LP as record holder. The filing clarifies that Lyndal Stephens Greth retains ultimate beneficial ownership, while formally disavowing beneficial ownership beyond any pecuniary interest. This is a routine Section 16 initial statement triggered by the reorganization and does not on its face report derivative positions or additional transactions.

Corporate Governance Expert

TL;DR: Corporate restructuring consolidated equity record ownership without changing the reported ultimate owner; filing fulfills disclosure requirements.

The document appears to be a standard compliance filing following an internal transfer of record ownership. It identifies SGF FANG Holdings, LP as the record holder and points to a Schedule 13D/A for further disclosure about the reorganization. The disclaimer of beneficial ownership except for pecuniary interest is notable for clarifying the reporting legal position but does not negate the fact that Mrs. Stephens Greth is described as the ultimate beneficial owner.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

SGF FANG Holdings, LP

(Last) (First) (Middle)

C/O KEVIN T. KEEN

8111 DOUGLAS AVENUE, SUITE 1200

(Street)

DALLAS TX 75225

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
08/13/2025

3. Issuer Name and Ticker or Trading Symbol
Diamondback Energy, Inc. [ FANG ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	101,686,727(1)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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.

	/s/ Kevin T. Keen, Attorney in fact	08/15/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did the Form 3 filed for Diamondback Energy (FANG) disclose?

The Form 3 reports that SGF FANG Holdings, LP became the record holder of 101,686,727 shares of Diamondback Energy common stock on August 13, 2025 following an internal reorganization.

Who is identified as the ultimate beneficial owner of the shares?

Lyndal Stephens Greth is identified as the ultimate beneficial owner of the shares held of record by SGF FANG Holdings, LP.

Did the filing report any derivative securities or options?

No. Table II for derivative securities contains no entries; the Form 3 reports only the non-derivative holding of 101,686,727 common shares.

When was the reorganization that produced this filing reported elsewhere?

The filing references a Schedule 13D/A about the reorganization that was filed with the SEC on August 15, 2025.

Who signed the Form 3?

The Form 3 was signed by /s/ Kevin T. Keen, Attorney in fact on August 15, 2025.