X0508 4 2026-01-01 0001743725 GRID DYNAMICS HOLDINGS, INC. GDYN 0001731166 Doradla Anil C/O GRID DYNAMICS HOLDINGS, INC. 6101 BOLLINGER CANYON ROAD, SUITE 465 SAN RAMON CA 94583 true CHIEF FINANCIAL OFFICER false Common Stock 2026-01-01 4 A 0 36000 0 A 380852 D Common Stock 2026-01-01 4 F 0 2377 9.03 D 378475 D These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Common Stock. One-third of the RSUs shall vest on January 1, 2027 and one-twelfth of the RSUs shall vest on each three-month anniversary thereafter, subject to the Reporting Person continuing as a service provider through each such date. Represents shares that have been withheld by the Issuer to satisfy tax withholding and remittance obligations in connection with the net settlement of restricted stock units granted to the Reporting Person on January 1, 2024. /s/Anil Doradla 2026-01-05