Diamondback Energy Insider Transfer: Plaumann Receives 2,965 Shares from Greyhawke

Rhea-AI Filing Summary

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.

Positive

• Director’s direct ownership increases by 2,965 shares, modestly tightening alignment with common shareholders.

Negative

• None.

Insights

Financial Analyst

TL;DR: Small, cash-free insider transfer; boosts direct holdings but carries limited market impact.

The Code J distribution simply shifts ownership from Greyhawke to Plaumann, increasing his direct stake to 5,267 shares. No cash outlay or new shares means no dilution and no incremental confidence signal normally associated with open-market buys. At roughly US$0.5 million, the position is immaterial versus Diamondback’s multi-billion-dollar float. Consequently, I classify the disclosure as neutral to the investment case.

Corporate Governance Expert

TL;DR: Governance-neutral restructuring; improves transparency of Plaumann’s beneficial stake.

Reallocating 2,965 shares out of an LLC into personal ownership clarifies Plaumann’s economic interest, a governance positive. Yet there is no change in overall beneficial ownership and the transaction lacks performance-linked incentives. Therefore, from a governance and shareholder-alignment perspective, the action is marginal and impactful only in disclosure clarity.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Plaumann Mark Lawrence

(Last) (First) (Middle)

500 WEST TEXAS AVENUE

SUITE 100

(Street)

MIDLAND TX 79701

(City) (State) (Zip)

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

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

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

3. Date of Earliest Transaction (Month/Day/Year)
06/19/2025

4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/19/2025		J		2,965(1)	A	$0	5,267	D
Common Stock								7,688(1)	I(2)	By Greyhawke Capital Advisors LLC

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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").

2. 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.

Remarks:

	/s/ Teresa L. Dick, as attorney-in-fact for Mark L. Plaumann	06/23/2025
	** 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 4 (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

How many Diamondback Energy (FANG) shares did Mark Plaumann acquire on 06/19/2025?

2,965 common shares were distributed to him in-kind from Greyhawke Capital Advisors LLC.

What is Mark Plaumann’s total beneficial ownership after the transaction?

He now beneficially owns 12,955 shares (5,267 direct and 7,688 indirect).

Was the acquisition an open-market purchase?

No. It was a Code J in-kind distribution with a stated price of $0.

How many shares does Plaumann hold indirectly through Greyhawke?

He is deemed to own 7,688 shares via Greyhawke Capital Advisors LLC.

Does this Form 4 affect Diamondback Energy’s share count or capital structure?

No. The transfer was internal and did not involve new share issuance or cash consideration.