X0306 4 2023-02-21 0 0001743725 GRID DYNAMICS HOLDINGS, INC. GDYN 0001805657 Livschitz Leonard C/O GRID DYNAMICS HOLDINGS, INC. 5000 EXECUTIVE PARKWAY, SUITE 520 SAN RAMON CA 94583 1 1 0 0 Chief Executive Officer Common Stock 2023-02-21 4 A 0 853120 0.00 A 3797599 D Common Stock 2023-02-21 4 F 0 449167 11.97 D 3348432 D Represents the acquisition of shares upon the determination of the Board of Directors of the Issuer that the performance conditions were met with respect to the performance share awards granted to the Reporting Person on January 3, 2022. Represents shares that have been withheld by the Issuer to satisfy tax withholding and remittance obligations in connection with the issuance of shares pursuant to performance share awards granted to the Reporting Person on January 3, 2022. /s/ Anil Doradla, by power of attorney 2023-02-23