Diamondback Energy (FANG) chair Stice sells 100000 shares in open market

Rhea-AI Filing Summary

Diamondback Energy Executive Chairman Travis D. Stice reported open‑market sales of 100000 shares of common stock on March 6, 2026. The transactions included 63957 indirectly held shares through Stice Investments, Ltd. and 36043 shares held directly.

Sale prices were reported as weighted averages, with individual trades executed in ranges from $180.57 to $181.785 per share. Following these sales, Stice holds 305314 shares indirectly through Stice Investments, Ltd. and 123745 shares directly.

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Equity markets analyst

Executive chairman executes 100000-share open-market sale but retains sizable stake.

Executive Chairman Travis D. Stice conducted open-market sales totaling 100000 shares of Diamondback Energy common stock on March 6, 2026. All transactions used code "S", indicating standard open-market or private sales rather than option exercises or tax-related moves.

The filing shows 63957 shares sold from an indirect position held through Stice Investments, Ltd. and 36043 shares from direct holdings. After the trades, Stice still holds 305314 shares indirectly and 123745 directly, suggesting a reduced but still substantial ownership position.

Footnotes indicate prices were reported as weighted averages, with trades across ranges from $180.57 to $181.785 per share. No derivative positions remain visible in this filing, and there is no reference to a Rule 10b5-1 trading plan, so the timing context beyond the disclosed date is not specified.

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
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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^*

Stice Travis D.

(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
X	Officer (give title below)		Other (specify below)
	Executive Chairman

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		62,808	D	$181.1512(1)	306,463	I(2)	By Stice Investments, Ltd.(2)
Common Stock	03/06/2026		S		1,149	D	$181.6716(3)	305,314	I(2)	By Stice Investments, Ltd.(2)
Common Stock	03/06/2026		S		35,070	D	$181.0601(4)	124,718	D
Common Stock	03/06/2026		S		973	D	$181.6758(5)	123,745	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 $180.59 per share to $181.56 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 footnote 3.

2. These securities are held by Stice Investments, Ltd., which is managed by Stice Management, LLC, its general partner. Mr. Stice and his spouse hold 100% of the membership interests in Stice Management, LLC, of which Mr. Stice is the manager.

3. The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $181.60 per share to $181.77 per share, inclusive.

4. The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $180.57 per share to $181.56 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 footnote 5.

5. The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $181.57 per share to $181.785 per share, inclusive.

Remarks:

	/s/ Matt Zmigrosky, as attorney-in-fact for Travis D. Stice	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 insider transaction did Diamondback Energy (FANG) report for Travis D. Stice?

Diamondback Energy reported that Executive Chairman Travis D. Stice sold 100000 shares of common stock on March 6, 2026, through open-market transactions. The sales covered both directly held shares and shares held indirectly through Stice Investments, Ltd.

How many Diamondback Energy (FANG) shares does Travis D. Stice still own after the sale?

After the reported transactions, Travis D. Stice holds 305314 Diamondback Energy shares indirectly through Stice Investments, Ltd. and 123745 shares directly. These figures come from the post-transaction ownership columns in the Form 4 and indicate a remaining substantial stake.

At what prices were the Diamondback Energy (FANG) shares sold by Travis D. Stice?

The Form 4 reports weighted average sale prices, with individual trades executed in ranges from $180.57 to $181.785 per share. Each line item includes a specific weighted average price, and footnotes clarify that multiple trades occurred within those ranges.

Were Travis D. Stice’s Diamondback Energy (FANG) sales direct or through an entity?

The sales were split between direct and indirect holdings. Some shares were sold from Stice’s personal holdings, while others came from Stice Investments, Ltd., an entity managed by Stice Management, LLC, whose membership interests are held by Mr. Stice and his spouse.

Did the Diamondback Energy (FANG) Form 4 involve any option exercises or derivative securities?

The Form 4 only shows common stock transactions coded as "S" for open-market or private sales. The derivative section is empty, and the transaction summary lists no option exercises or other derivative transactions tied to these sales.

How many Diamondback Energy (FANG) shares did Travis D. Stice sell from indirect holdings?

From indirect holdings via Stice Investments, Ltd., Travis D. Stice sold 62808 shares at a weighted average price of $181.1512 and 1149 shares at $181.6716, for a total of 63957 shares sold from that indirect position on March 6, 2026.