Michael Casey Maxwell - 30 Oct 2026 Form 4 Insider Report for HALLIBURTON CO (HAL)

Reporting relationship: President - Western Hemisphere
Issuer ticker: HAL
Reported as of: 30 Oct 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 02 Nov 2026, 13:20:33 UTC
Prior SEC filing: 06 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Sarah I. Rubenfeld, by Power of Attorney

Filing notes and source

Key filing fact

Michael Casey Maxwell filed Form 4 for HALLIBURTON CO (HAL) on 02 Nov 2026.

Key facts

This page summarizes Michael Casey Maxwell's Form 4 filing for HALLIBURTON CO (HAL).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 02 Nov 2026, 13:20.

Change

Previous filing in this sequence was filed on 06 May 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002107660 Primary reporting owner

Maxwell Michael Casey

Relationship: President - Western Hemisphere
Address: 3000 NORTH SAM HOUSTON PARKWAY E., HOUSTON
Signature: /s/ Sarah I. Rubenfeld, by Power of Attorney
Signature date: 02 Nov 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

HAL transaction

Common Stock

Tax liability

Transaction value
Shares: -7,551
Change %: -8%
Price: $35.90^*
Shares after: 86,358
Date: 30 Oct 2026
Ownership: Direct
Footnotes: F1, F2, F3

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 3 footnotes

Footnote 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.

Footnote 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.

Footnote F3

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