Halliburton Co.

HAL·NYSE·$41.08Share Price as of 11/2·$34BMarket Cap as of 11/2

Financials

10-QQ3 ended 09/30/2610/23/26 10-QQ2 ended 06/30/2607/24/26 10-QQ1 ended 03/31/2604/24/26 10-KFY 202502/06/26 10-QQ3 ended 09/30/2510/24/25

Disclosures

8-KCurrent report10/20/26 8-KCurrent report10/15/26 8-KCurrent report09/16/26 8-KCurrent report07/21/26 8-KCurrent report06/29/26

Prospectuses and Registrations

S-8Registration of securities for employees05/20/26 S-3ASRAutomatic shelf registration02/06/26 S-8Registration of securities for employees05/15/24 S-3ASRAutomatic shelf registration02/07/23 S-8Registration of securities for employees07/23/21

Proxies

DEF 14ADefinitive proxy03/31/26 DEFA14AAdditional proxy materials03/31/26 PRE 14APreliminary proxy03/11/26 DEF 14ADefinitive proxy04/01/25 DEFA14AAdditional proxy materials04/01/25

Ownership

Form 4Insider transaction10/26/26 Form 3Initial insider ownership10/20/26 Form 4Insider transaction09/30/26 Form 4Insider transaction09/01/26 144Proposed sale of securities08/31/26

Other

SDConflict Minerals disclosure09/28/26 SDConflict Minerals disclosure05/29/26 SDConflict Minerals disclosure09/26/25 SDConflict Minerals disclosure05/30/25 8-A12B8-A12B05/28/25