Diamondback Energy (FANG) CAO trades 5,000 shares in open-market sale

Rhea-AI Filing Summary

Diamondback Energy, Inc. executive Teresa L. Dick, the company’s CAO, Executive Vice President and Assistant Secretary, sold 5,000 shares of common stock in an open-market transaction at $190 per share. After this sale, she directly owns 107,755 shares of Diamondback Energy common stock.

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

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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^*

Dick Teresa L.

(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)
	CAO, Exec. VP, Assist. Sec.

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/18/2026

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	03/18/2026		S		5,000	D	$190	107,755	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:

Remarks:

	/s/ Matt Zmigrosky, as attorney-in-fact for Teresa L. Dick	03/19/2026
	** 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)

FAQ

What insider transaction did Diamondback Energy (FANG) report?

Diamondback Energy reported that CAO and Executive Vice President Teresa L. Dick sold 5,000 shares of common stock in an open-market transaction at $190 per share, as disclosed in a Form 4 insider filing.

How many Diamondback Energy (FANG) shares did Teresa L. Dick sell?

Teresa L. Dick sold 5,000 shares of Diamondback Energy common stock. This open-market sale was reported on a Form 4 filing and reflects a single non-derivative transaction in the company’s shares.

At what price were the Diamondback Energy (FANG) shares sold?

The shares were sold at $190 per share. The Form 4 filing shows a single open-market sale of 5,000 shares of Diamondback Energy common stock at this transaction price per share.

How many Diamondback Energy (FANG) shares does Teresa L. Dick hold after the sale?

After the sale, Teresa L. Dick directly owns 107,755 shares of Diamondback Energy common stock. This post-transaction holding amount is reported in the Form 4 as total shares following the transaction.

What role does Teresa L. Dick hold at Diamondback Energy (FANG)?

Teresa L. Dick serves as Chief Accounting Officer, Executive Vice President and Assistant Secretary at Diamondback Energy. Her insider status requires reporting trades in company stock through Form 4 filings with the SEC.

What type of transaction was reported for Diamondback Energy (FANG)?

The filing reports an open-market sale of common stock. It is classified as a non-derivative transaction with the SEC code “S,” indicating a sale in open market or private transaction as defined in the Form 4.