Halliburton (NYSE: HAL) CEO updates holdings after stock vesting and option expiry

Rhea-AI Filing Summary

Halliburton Company’s director, president and CEO reported routine changes in ownership tied to equity compensation. On December 4, 2025, 20,966 shares of common stock were transferred to Halliburton to cover federal tax withholding when restricted stock vested from a grant originally made on December 2, 2020. The reference price for the tax withholding was $26.91 per share, the NYSE closing price on December 2, 2025.

After this transaction, the insider beneficially owns 997,632.02 shares of Halliburton common stock, including 901.551 shares purchased through the company’s employee stock purchase plan for the period ending March 31, 2025. The filing also lists several outstanding stock options with exercise prices between $31.44 and $53.54, and notes that a 99,200-share option grant that was due to expire on December 2, 2025 has now expired.

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

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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^*

Miller Jeffrey Allen

(Last) (First) (Middle)

3000 N. SAM HOUSTON PARKWAY E.

(Street)

HOUSTON TX 77032

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
HALLIBURTON CO [ HAL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Director, President & CEO

3. Date of Earliest Transaction (Month/Day/Year)
12/04/2025

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	12/04/2025		F		20,966(1)	D	$26.91(2)	997,632.02(3)	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
Option to Buy Common Stock	$31.44							12/05/2018	12/05/2028	Common Stock	171,200		171,200	D
Option to Buy Common Stock	$43.38							12/06/2017	12/06/2027	Common Stock	128,500		128,500	D
Option to Buy Common Stock	$53.54							12/07/2016	12/07/2026	Common Stock	69,500		69,500	D
Option to Buy Common Stock	$38.95							12/02/2015	12/02/2025	Common Stock	99,200		0(4)	D

Explanation of Responses:

1. Shares transferred to Halliburton Company for payment for Federal tax withholding obligations on lapse of restrictions on shares issued under the Stock and Incentive Plan. Said Plan permits Reporting Person to satisfy withholding tax obligation by transferring unrestricted shares to the Issuer.

2. The stock vested on December 2, 2025 and is related to stock granted on December 2, 2020. The closing price of Halliburton Company's Common Stock on the New York Stock Exchange on December 2, 2025 was $26.91. Shares were withheld for tax reporting on December 4, 2025.

3. Includes 901.551 shares of stock purchased through the Halliburton Company Employee Stock Purchase Plan for the period ending March 31, 2025.

4. Stock option expired December 2, 2025.

Remarks:

	/s/ Sarah I. Rubenfeld, by Power of Attorney	12/08/2025
	** 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.
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FAQ

What insider transaction did Halliburton (HAL) report in this Form 4?

The filing shows the company’s director, president and CEO transferred 20,966 shares of Halliburton common stock back to the company on December 4, 2025 to satisfy federal tax withholding obligations related to vested stock.

Why were 20,966 Halliburton (HAL) shares disposed of by the insider?

According to the explanation, the 20,966 shares were transferred to Halliburton to pay federal tax withholding when restrictions lapsed on shares issued under the company’s Stock and Incentive Plan, which allows tax obligations to be met with unrestricted shares.

What price was used for the Halliburton (HAL) shares withheld for taxes?

The stock related to this transaction vested on December 2, 2025 from a grant dated December 2, 2020, and the filing notes that the NYSE closing price of Halliburton common stock on December 2, 2025 was $26.91 per share, which is used as the price in the tax-withholding line.

How many Halliburton (HAL) shares does the reporting person own after this transaction?

Following the reported transaction, the insider beneficially owns 997,632.02 shares of Halliburton common stock in direct form. This total includes 901.551 shares acquired through the Halliburton Company Employee Stock Purchase Plan for the period ending March 31, 2025.

What stock options for Halliburton (HAL) does the insider still hold?

The filing lists several options to buy Halliburton common stock held directly, including grants with exercise prices of $31.44 (171,200 shares, expiring December 5, 2028), $43.38 (128,500 shares, expiring December 6, 2027), and $53.54 (69,500 shares, expiring December 7, 2026).

Did any Halliburton (HAL) stock options held by the insider expire?

Yes. The filing notes that an option grant with an exercise price of $38.95 covering 99,200 shares of Halliburton common stock expired on December 2, 2025, and the number of derivative securities remaining from that grant is now reported as zero.

What is the insider’s role and relationship to Halliburton (HAL)?

The reporting person is identified as a director and as an officer with the title Director, President & CEO of Halliburton Company, and the Form 4 is filed for one reporting person on an individual basis.