X0508 4 2024-12-04 0000045012 HALLIBURTON CO HAL 0001630205 Geer Charles Jr. 3000 N. SAM HOUSTON PARKWAY E. HOUSTON TX 77032 0 1 0 0 SVP & Chief Accounting Officer 1 Common Stock 2024-12-04 4 F 0 1087 31.56 D 96275.088 D Option to Buy Common Stock 40.75 2014-12-03 2024-12-03 Common Stock 8700 0 D Option to Buy Common Stock 31.44 2018-12-05 2028-12-05 Common Stock 8700 8700 D Option to Buy Common Stock 43.38 2017-12-06 2027-12-06 Common Stock 5800 5800 D Option to Buy Common Stock 53.54 2016-12-07 2026-12-07 Common Stock 5100 5100 D Option to Buy Common Stock 38.95 2015-12-02 2025-12-02 Common Stock 8700 8700 D 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 December 2, 2024 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, 2024 was $31.56. Shares were withheld for tax reporting on December 4, 2024. Includes 278.266 shares of stock purchased through the Halliburton Company Employee Stock Purchase Plan for the period ending June 30, 2024. Stock option expired December 3, 2024. /s/ Sarah I. Rubenfeld, by Power of Attorney 2024-12-06