Diamondback Energy (FANG) COO sells 20,000 shares in open-market trades

Rhea-AI Filing Summary

Diamondback Energy, Inc. executive Daniel N. Wesson, Executive VP & COO, sold 20,000 shares of Common Stock in open-market transactions. The sales on March 6, 2026 were executed in two tranches: 19,800 shares at an average price of about $181.10 per share and 200 shares at about $181.78 per share. After these transactions, Wesson directly holds 83,289 shares of Diamondback Energy common stock. A footnote explains that the reported sale price is a weighted average, with individual trades occurring between $180.745 and $181.53 per share.

Insights

Equity market & insider-transactions analyst

Diamondback’s COO made a moderate open-market share sale while retaining a sizeable stake.

Executive VP & COO Daniel N. Wesson sold 20,000 Diamondback Energy common shares in open-market trades at prices around $181 on March 6, 2026. The filing classifies both trades with code S, indicating standard market sales rather than option exercises or gifts.

Following these sales, Wesson directly holds 83,289 shares, so the disposition represents only a portion of his visible equity position. There are no remaining derivative holdings listed in this filing, and the price disclosure is provided as a weighted average with a detailed range between $180.745 and $181.53 per share.

The filing does not reference any Rule 10b5-1 trading plan, so the timing appears discretionary based on the provided information. From an investment perspective, this looks like a routine liquidity event by a senior executive, with the continued substantial shareholding suggesting ongoing exposure to Diamondback Energy’s performance.

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 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)

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

3. Date of Earliest Transaction (Month/Day/Year)
03/06/2026

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	03/06/2026		S		19,800	D	$181.0996(1)	83,489	D
Common Stock	03/06/2026		S		200	D	$181.775	83,289	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 $180.745 per share to $181.53 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	03/10/2026
	** 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.

FAQ

What did Diamondback Energy (FANG) executive Daniel Wesson report in this Form 4?

Executive VP & COO Daniel N. Wesson reported selling 20,000 shares of Diamondback Energy common stock. The sales occurred in open-market transactions on March 6, 2026, and were executed at weighted average prices around $181 per share, according to the Form 4 disclosure.

How many Diamondback Energy (FANG) shares did Daniel Wesson sell and at what prices?

Daniel Wesson sold a total of 20,000 Diamondback Energy common shares. He sold 19,800 shares at about $181.10 per share and 200 shares at about $181.78 per share, with a reported weighted average price range from $180.745 to $181.53.

How many Diamondback Energy (FANG) shares does Daniel Wesson hold after the reported sale?

After the reported open-market sales, Daniel Wesson directly holds 83,289 shares of Diamondback Energy common stock. This remaining position reflects his continued equity stake in the company following the disposition of 20,000 shares on March 6, 2026.

Was Daniel Wesson’s Diamondback Energy (FANG) transaction an open-market sale?

Yes. Both transactions are coded “S” and described as open-market sales of Diamondback Energy common stock. The Form 4 notes they were executed at multiple prices within a range from $180.745 to $181.53 per share, resulting in a weighted average sale price.

Does the Form 4 for Diamondback Energy (FANG) mention a Rule 10b5-1 trading plan?

The provided Form 4 excerpt does not mention a Rule 10b5-1 trading plan. It simply characterizes the two reported transactions as open-market sales, with detailed information on share counts, weighted average prices, and the post-transaction share balance held by Daniel Wesson.

What is the significance of the weighted average price disclosure in the Diamondback Energy (FANG) Form 4?

The filing states that the reported sale price is a weighted average of multiple trades. It notes that individual trades occurred between $180.745 and $181.53 per share and offers to provide detailed trade-by-trade information to the company, shareholders, or SEC staff upon request.