Diamondback Energy (FANG) director granted 982 restricted stock units in equity award

Rhea-AI Filing Summary

Tsuru Frank D. reported acquisition or exercise transactions in this Form 4 filing.

Diamondback Energy director Frank D. Tsuru received a grant of 982 restricted stock units of common stock. The award is an annual non-employee director grant under the company’s equity incentive plan and vests on the earlier of the one-year anniversary of the grant date or the 2027 annual stockholders’ meeting. Following this award, Tsuru directly holds 8,129 shares of common stock.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Tsuru Frank D.

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	982	$0.00	--

Holdings After Transaction: Common Stock — 8,129 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

RSU grant size: 982 shares Post-transaction holdings: 8,129 shares Grant price: $0.00 per share +2 more

5 metrics

RSU grant size 982 shares Restricted stock units granted to director Frank D. Tsuru

Post-transaction holdings 8,129 shares Common stock directly held after the grant

Grant price $0.00 per share Compensation grant with no purchase price

Par value $0.01 per share Par value of Diamondback Energy common stock

Vesting outside date 2027 annual meeting Latest vesting trigger for RSUs

Key Terms

restricted stock units, equity incentive plan, non-employee director grant, contingent right

4 terms

restricted stock units financial

"These securities are restricted stock units, each representing a contingent right to receive one share of common stock"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

equity incentive plan financial

"granted to Mr. Tsuru as an annual non-employee director grant under the issuer's equity incentive plan"

An equity incentive plan is a program that gives employees, executives or directors the right to receive company stock or options to buy stock as part of their pay. Think of it as offering slices of future company profit to motivate people to boost long‑term performance; for investors it matters because it can align employee goals with shareholder value but also increases the number of shares outstanding, which can dilute existing ownership.

non-employee director grant financial

"These restricted stock units were granted to Mr. Tsuru as an annual non-employee director grant"

contingent right financial

"each representing a contingent right to receive one share of common stock"

Form 4 Insider Transactions: What Each Field Means →

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^*

Tsuru Frank D.

(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)
05/20/2026

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	05/20/2026		A		982(1)	A	$0	8,129	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. These securities are restricted stock units, each representing a contingent right to receive one share of common stock, par value $0.01 per share, of the issuer. These restricted stock units were granted to Mr. Tsuru as an annual non-employee director grant under the issuer's equity incentive plan and will vest on the earlier of the one-year anniversary of the date of grant and the date of the 2027 annual meeting of stockholders of the issuer.

Remarks:

	/s/ Matt Zmigrosky, as attorney-in-fact for Frank D. Tsuru	05/21/2026
	** 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 for Frank D. Tsuru?

Diamondback Energy reported that director Frank D. Tsuru received 982 restricted stock units of common stock as an annual non-employee director grant, increasing his direct holdings to 8,129 shares after the transaction.

Is the Frank D. Tsuru Form 4 for FANG a stock purchase or a grant?

The Form 4 for Frank D. Tsuru reflects a stock grant, not a market purchase. He received 982 restricted stock units at no cost as part of his compensation under Diamondback Energy’s equity incentive plan.

When do Frank D. Tsuru’s 982 restricted stock units in Diamondback Energy (FANG) vest?

The 982 restricted stock units granted to Frank D. Tsuru vest on the earlier of the one-year anniversary of the grant date or the date of Diamondback Energy’s 2027 annual meeting of stockholders, subject to the grant terms.

How many Diamondback Energy (FANG) shares does Frank D. Tsuru hold after this Form 4?

After receiving the 982 restricted stock units, which represent rights to common shares, Frank D. Tsuru is reported to hold 8,129 shares of Diamondback Energy common stock directly, according to the Form 4 disclosure.

What type of security was granted to Frank D. Tsuru in the FANG Form 4?

Frank D. Tsuru was granted restricted stock units, each representing a contingent right to receive one share of Diamondback Energy common stock with a par value of $0.01 per share, under the company’s equity incentive plan.