X0508 4 2025-10-01 0001743725 GRID DYNAMICS HOLDINGS, INC. GDYN 0001805657 Livschitz Leonard C/O GRID DYNAMICS HOLDINGS, INC. 5000 EXECUTIVE PARKWAY, SUITE 520 SAN RAMON CA 94583 true true CHIEF EXECUTIVE OFFICER false Common Stock 2025-10-01 4 F 0 35901 7.82 D 2861378 D Common Stock 13002 I See footnote Represents shares that have been withheld by the Issuer to satisfy tax withholding and remittance obligations in connection with net settlement of restricted stock units. The shares are held by the Reporting Person's spouse. /s/Anil Doradla, by power of attorney 2025-10-03