144 0002042355 XXXXXXXX LIVE 0001601046 Keysight Technologies, Inc. 001-36334 1400 FOUNTAINGROVE PARKWAY SANTA ROSA CA 95403 8774244536 YOON SUNG Officer Common Fidelity Brokerage Services LLC

900 Salem Street Smithfield RI 02917

889 183677.69 171817127 12/30/2025 NYSE Common 11/17/2021 Restricted Stock Vesting Issuer N 733 11/17/2021 Compensation Common 10/31/2022 ESPP Purchase Issuer N 23 10/31/2022 Cash Common 11/16/2022 Restricted Stock Vesting Issuer N 25 11/16/2022 Compensation Common 11/15/2023 Restricted Stock Vesting Issuer N 29 11/15/2023 Compensation Common 10/31/2024 ESPP Purchase Issuer N 48 10/31/2024 Cash Common 11/20/2024 Restricted Stock Vesting Issuer N 31 11/20/2024 Compensation Y 12/30/2025 /s/ Gerardo Ibarra-Munoz, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Sung J. Yoon