Diamondback director entity sells 83,334 shares

Diamondback Energy, Inc. director Charles Alvin Meloy reported indirect open-market sales of common stock through Wolfrock Energy, LLC on June 16, 2026.

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Rhea-AI Filing Summary

Diamondback Energy, Inc. director Charles Alvin Meloy reported indirect open-market sales of common stock through Wolfrock Energy, LLC on June 16, 2026. Wolfrock sold a total of 83,334 shares in multiple transactions under a pre-arranged Rule 10b5-1 trading plan adopted on March 17, 2026.

The sales included 4,049 shares at a weighted average price of $187.676, 64,747 shares at $187.2528, and 14,538 shares at $186.365, each executed across multiple trades within stated price ranges. Following these transactions, Wolfrock held 851,530 shares of Diamondback Energy common stock indirectly controlled by Meloy, and Meloy also reported 3,257 shares held directly.

Insider Trade Summary 10b5-1

Net Seller: 83,334 shares

Net Sell 4 txns

Insider Meloy Charles Alvin

Role Director

Sold 83,334 shs ($15.59M)

Type	Security	Shares	Price	Value
Sale	Common Stock	14,538	$186.365	$2.71M
Sale	Common Stock	64,747	$187.2528	$12.12M
Sale	Common Stock	4,049	$187.676	$760K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 851,530 shares (Indirect, Wolfrock Energy, LLC); Common Stock — 3,257 shares (Direct)

Footnotes (5)

F1. The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Meloy on March 17, 2026.
F2. The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $185.60 per share to $186.60 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote and in footnotes 4 and 5.
F3. These securities are held directly by Wolfrock Energy, LLC, a Texas limited liability company whose sole member is CS Ventures, Ltd. CS Ventures, Ltd. is controlled by its general partner, Meloy Management, LLC, which is controlled by the Reporting Person.
F4. The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $186.605 per share to $187.59 per share, inclusive.
F5. The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $187.61 per share to $187.80 per share, inclusive.

Key Figures

Shares sold (total): 83,334 shares Block sale 1: 4,049 shares at $187.676 Block sale 2: 64,747 shares at $187.2528 +4 more

7 metrics

Shares sold (total) 83,334 shares Open-market sales on June 16, 2026 by Wolfrock Energy, LLC

Block sale 1 4,049 shares at $187.676 Common Stock, open-market sale

Block sale 2 64,747 shares at $187.2528 Common Stock, open-market sale

Block sale 3 14,538 shares at $186.365 Common Stock, open-market sale

Indirect holdings after trades 920,326 shares Wolfrock Energy, LLC Common Stock position following sales

Direct holdings reported 3,257 shares Common Stock directly held by Charles Alvin Meloy

Net share change -83,334 shares Net-sell direction from transaction summary

Key Terms

Rule 10b5-1 trading plan, weighted average sale price, indirect, open-market sale, +1 more

5 terms

Rule 10b5-1 trading plan regulatory

"The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Meloy on March 17, 2026."

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average sale price financial

"The price reported in Column 4 is a weighted average sale price."

indirect financial

"These securities are held directly by Wolfrock Energy, LLC, a Texas limited liability company whose sole member is CS Ventures, Ltd."

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Common Stock financial

"security_title": "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Diamondback Energy (FANG) report for Charles Alvin Meloy?

Diamondback Energy director Charles Alvin Meloy reported indirect open-market sales of 83,334 common shares through Wolfrock Energy, LLC on June 16, 2026. The transactions were executed under a pre-arranged Rule 10b5-1 trading plan adopted earlier that year.

How many Diamondback Energy (FANG) shares were sold and at what prices?

Wolfrock Energy, LLC sold 83,334 Diamondback Energy common shares in three blocks at weighted average prices of $186.365, $187.2528, and $187.676 per share. Each block was executed across multiple trades within specified price ranges disclosed in the filing footnotes.

Were the Diamondback Energy (FANG) insider sales pre-planned under a Rule 10b5-1 plan?

Yes. The filing states the transactions were effected under a Rule 10b5-1 trading plan adopted by Charles Alvin Meloy on March 17, 2026. Such plans pre-schedule trades, indicating these sales followed a predetermined framework rather than discretionary timing decisions.

Who actually held and sold the Diamondback Energy (FANG) shares for Meloy?

The sold shares were held by Wolfrock Energy, LLC, a Texas limited liability company. Wolfrock’s sole member is CS Ventures, Ltd., which is controlled by Meloy Management, LLC; that entity is controlled by Charles Alvin Meloy, giving him indirect control over these holdings.

How many Diamondback Energy (FANG) shares does Wolfrock Energy, LLC hold after the sales?

After the reported June 16, 2026 transactions, Wolfrock Energy, LLC held 920,326 shares of Diamondback Energy common stock. These shares are indirectly controlled by Charles Alvin Meloy through CS Ventures, Ltd. and Meloy Management, LLC, as described in the ownership footnote.

What direct Diamondback Energy (FANG) holdings does Charles Alvin Meloy report?

In addition to his indirect holdings through Wolfrock Energy, LLC, Charles Alvin Meloy reported 3,257 Diamondback Energy common shares held directly. This direct position appears in a separate holding line item in the Form 4, distinct from the indirect Wolfrock transactions.

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Accepted by SEC EDGAR 06/17/2026 - 04:18 PM

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^*

Meloy Charles Alvin

(Last)

(First)

(Middle)

500 WEST TEXAS AVENUE

SUITE 100

(Street)

MIDLAND

TEXAS

79701

(City)

(State)

(Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/16/2026

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

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

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

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	06/16/2026		S		14,538⁽¹⁾	D	$186.365⁽²⁾	920,326	I⁽³⁾	Wolfrock Energy, LLC⁽³⁾
Common Stock	06/16/2026		S		64,747⁽¹⁾	D	$187.2528⁽⁴⁾	855,579	I⁽³⁾	Wolfrock Energy, LLC⁽³⁾
Common Stock	06/16/2026		S		4,049⁽¹⁾	D	$187.676⁽⁵⁾	851,530	I⁽³⁾	Wolfrock Energy, LLC⁽³⁾
Common Stock								3,257	D

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Mr. Meloy on March 17, 2026.

2. The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $185.60 per share to $186.60 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote and in footnotes 4 and 5.

3. These securities are held directly by Wolfrock Energy, LLC, a Texas limited liability company whose sole member is CS Ventures, Ltd. CS Ventures, Ltd. is controlled by its general partner, Meloy Management, LLC, which is controlled by the Reporting Person.

4. The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $186.605 per share to $187.59 per share, inclusive.

5. The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $187.61 per share to $187.80 per share, inclusive.

Remarks:

	/s/ Matt Zmigrosky, as attorney-in-fact for Charles A. Meloy	06/17/2026
	** 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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR