Halliburton's Maxwell transfers 7,551 shares for taxes

The stock vested October 29, 2026, and was related to stock granted October 29, 2021.

Available on EDGAR 11/02/2026 - 01:21 PM EST Accepted by SEC EDGAR 11/02/2026 - 01:20 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Halliburton (HAL) President - Western Hemisphere Michael Casey Maxwell transferred 7,551 shares to the company on October 30, 2026, for payment of federal tax withholding obligations as restrictions lapsed. His reported direct position afterward was 86,358 shares; that total includes shares purchased through Halliburton’s Employee Stock Purchase Plan.

Insider Trade Summary

Tax Withholding: 7,551 shares

Tax Withholding 1 txn

Insider Maxwell Michael Casey

Role President - Western Hemisphere

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1, F2, F3	7,551	$35.90	$271K

Holdings After Transaction: Common Stock — 86,357.982 shares (Direct)

Holdings Before and After: Common Stock, 93,908.982 to 86,357.982 shares (Direct)

Footnotes (3)

1. 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.
2. F2. The stock vested on October 29, 2026 and is related to stock granted on October 29, 2021. The closing price of Halliburton Company's Common Stock on the New York Stock Exchange on October 29, 2026 was $35.90. Shares were withheld for tax reporting on October 30, 2026.
3. F3. Includes 146.199 shares of stock purchased through the Halliburton Company Employee Stock Purchase Plan for the period ending June 30, 2026.

Key Figures

Shares transferred for tax withholding: 7,551 shares Direct shares after transaction: 86,358 shares Closing price: $35.90 per share

3 metrics

Shares transferred for tax withholding 7,551 shares October 30, 2026

Direct shares after transaction 86,358 shares Reported position following the transaction

Closing price $35.90 per share Halliburton common stock, October 29, 2026

Key Terms

Federal tax withholding obligations, Stock and Incentive Plan, Employee Stock Purchase Plan

3 terms

Federal tax withholding obligations financial

"payment for Federal tax withholding obligations"

Stock and Incentive Plan financial

"shares issued under the Stock and Incentive Plan"

Employee Stock Purchase Plan financial

"through the Halliburton Company Employee Stock Purchase Plan"

An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many HAL shares did Michael Casey Maxwell transfer for tax withholding?

Michael Casey Maxwell transferred 7,551 shares to Halliburton on October 30, 2026, for payment of federal tax withholding obligations.

When did the Halliburton shares vest, and what was the closing price?

The stock vested on October 29, 2026 and was related to stock granted on October 29, 2021. Halliburton common stock closed at $35.90 on the New York Stock Exchange on October 29, 2026.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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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^*

Maxwell Michael Casey

(Last) (First) (Middle)

3000 NORTH SAM HOUSTON PARKWAY E.

(Street)

HOUSTON TEXAS 77032

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President - Western Hemisphere

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/30/2026

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	10/30/2026		F		7,551(1)	D	$35.9(2)	86,357.982(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

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 October 29, 2026 and is related to stock granted on October 29, 2021. The closing price of Halliburton Company's Common Stock on the New York Stock Exchange on October 29, 2026 was $35.90. Shares were withheld for tax reporting on October 30, 2026.

3. Includes 146.199 shares of stock purchased through the Halliburton Company Employee Stock Purchase Plan for the period ending June 30, 2026.

Remarks:

	/s/ Sarah I. Rubenfeld, by Power of Attorney	11/02/2026
	** 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)