Diamondback COO sells 7,500 shares at $215 avg

Diamondback Energy, Inc. (FANG) reported that executive vice president and COO Daniel N. Wesson sold 7,500 shares of common stock on August 20, 2026 in a sale transaction.

Rhea-AI Filing Summary

Diamondback Energy, Inc. (FANG) reported that executive vice president and COO Daniel N. Wesson sold 7,500 shares of common stock on August 20, 2026 in a sale transaction. The weighted average sale price was $215.2072 per share across multiple trades priced between $214.905 and $215.49 per share. After this sale, Wesson directly holds 70,789 shares of Diamondback Energy common stock.

Insider Trade Summary

Net Seller: 7,500 shares

Net Sell 1 txn

Insider Wesson Daniel N

Role Exec. VP & COO

Sold 7,500 shs ($1.61M)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	7,500	$215.2072	$1.61M

Holdings After Transaction: Common Stock — 70,789 shares (Direct)

Footnotes (1)

1. F1. The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $214.905 per share to $215.49 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.

Key Figures

Shares sold: 7,500 shares of Common Stock Weighted average sale price: $215.2072 per share Sale price range: $214.905 to $215.49 per share +1 more

4 metrics

Shares sold 7,500 shares of Common Stock Sale by Daniel N. Wesson on August 20, 2026

Weighted average sale price $215.2072 per share Common stock sale on August 20, 2026

Sale price range $214.905 to $215.49 per share Multiple transactions included in the reported sale

Shares owned after transaction 70,789 shares Direct ownership by Daniel N. Wesson following the sale

Key Terms

weighted average sale price, multiple transactions, open market or private transaction

3 terms

weighted average sale price financial

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

multiple transactions financial

"These shares were sold in multiple transactions at prices ranging"

open market or private transaction financial

"transaction code description: Sale in open market or private transaction"

FAQ

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

What insider transaction did FANG disclose for Daniel N. Wesson?

Diamondback Energy disclosed that Daniel N. Wesson, Exec. VP & COO, sold 7,500 shares of common stock on August 20, 2026 in a reported sale transaction.

At what price did Daniel N. Wesson sell FANG shares?

The filing reports a weighted average sale price of $215.2072 per share, with individual trades executed in a price range from $214.905 to $215.49 per share.

How many FANG shares does Daniel N. Wesson hold after this transaction?

After the August 20, 2026 sale, Daniel N. Wesson directly holds 70,789 shares of Diamondback Energy, Inc. common stock.

Was the August 20, 2026 FANG insider sale made under a Rule 10b5-1 plan?

The filing’s Rule 10b5-1 checkbox is not checked, and the footnote does not mention any trading plan, so the sale is not identified as being made under a Rule 10b5-1 plan.

How many total FANG shares were sold in this Form 4 transaction?

The Form 4 reports that 7,500 shares of Diamondback Energy, Inc. common stock were sold in the August 20, 2026 transaction.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 4 Insider Transactions: What Each Field Means →

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Available on EDGAR 08/24/2026 - 04:02 PM EDT Accepted by SEC EDGAR 08/24/2026 - 04:01 PM EDT Learn about SEC filing dates

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^*

Wesson Daniel N

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Exec. VP & COO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/20/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	08/20/2026		S		7,500	D	$215.2072(1)	70,789	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $214.905 per share to $215.49 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.

Remarks:

	/s/ Matt Zmigrosky, as attorney-in-fact for Daniel N. Wesson	08/24/2026
	** 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)