Jill D. Sharp - 08 Jan 2026 Form 4 Insider Report for HALLIBURTON CO (HAL)

Role: SVP Internal Assurance Svcs.
Signature: /s/ Sarah I. Rubenfeld, by Power of Attorney
Issuer symbol: HAL
Transactions as of: 08 Jan 2026
Net transactions value: -$82,554
Form type: 4
Filing time: 09 Jan 2026, 17:47:42 UTC
Previous filing: 05 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Sharp Jill D.	SVP Internal Assurance Svcs.	3000 N. SAM HOUSTON PARKWAY E., HOUSTON	/s/ Sarah I. Rubenfeld, by Power of Attorney	09 Jan 2026	0001901659

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	HAL	Common Stock	Tax liability	$82,554	-2,789	-5.4%	$29.60	48,949	08 Jan 2026	Direct	F1, F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	HAL	Option to Buy Common Stock						14,197	08 Jan 2026	Common Stock	14,197	$55.68	Direct
holding	HAL	Option to Buy Common Stock						16,733	08 Jan 2026	Common Stock	16,733	$49.61	Direct

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	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.
F2	The stock vested on January 2, 2026, January 3, 2026, and January 4, 2026 and is related to stock granted on January 4, 2021, January 3, 2022, January 3, 2023, January 2, 2024, and January 2, 2025. January 3, 2026 and January 4, 2026 were non-market dates. The closing price of Halliburton Company's Common Stock on the New York Stock Exchange on January 2, 2026 was $29.60. Shares were withheld for tax reporting on January 8, 2026.

Content

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.

The stock vested on January 2, 2026, January 3, 2026, and January 4, 2026 and is related to stock granted on January 4, 2021, January 3, 2022, January 3, 2023, January 2, 2024, and January 2, 2025. January 3, 2026 and January 4, 2026 were non-market dates. The closing price of Halliburton Company's Common Stock on the New York Stock Exchange on January 2, 2026 was $29.60. Shares were withheld for tax reporting on January 8, 2026.