X0508 4 2025-12-11 0 0001601046 Keysight Technologies, Inc. KEYS 0002042355 YOON SUNG 1400 FOUNTAINGROVE PARKWAY SANTA ROSA CA 95403 0 1 0 0 SVP 0 Common Stock 2025-12-11 4 F 0 152 201.40 D 17841.818 D The reporting person surrendered 152 shares to Keysight to satisfy the tax liability (based on the December 02, 2025 fair market value of Keysight stock) on restricted stock units that became retirement-treatment eligible in accordance with Rule 16b-3. Jeffrey K. Li, Attorney-in-fact for Sung Jin Yoon 2025-12-15