Jeffrey Shannon Slocum - 08 Jan 2026 Form 4 Insider Report for HALLIBURTON CO (HAL)

Role
Director, EVP and COO, Director
Signature
/s/ Sarah I. Rubenfeld, by Power of Attorney
Issuer symbol
HAL
Transactions as of
08 Jan 2026
Net transactions value
-$1,006,004
Form type
4
Filing time
12 Jan 2026, 15:37:03 UTC
Previous filing
05 Jan 2026
Next filing
03 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Slocum Jeffrey Shannon Director, EVP and COO, Director 3000 N. SAM HOUSTON PARKWAY E., HOUSTON /s/ Sarah I. Rubenfeld, by Power of Attorney 12 Jan 2026 0001970357

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction HAL Common Stock Tax liability $234,195 -7,912 -3.6% $29.60 211,318 08 Jan 2026 Direct F1, F2
transaction HAL Common Stock Sale $771,808 -23,895 -11% $32.30 187,423 09 Jan 2026 Direct F3

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 12,090 08 Jan 2026 Common Stock 12,090 $49.61 Direct
holding HAL Option to Buy Common Stock 3,722 08 Jan 2026 Common Stock 3,722 $55.68 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

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.
F3 The sale was effected pursuant to a Rule 10b5-l trading plan adopted by the Reporting Person on August 7, 2025.