X0306 4 2021-11-19 0 0001743725 GRID DYNAMICS HOLDINGS, INC. GDYN 0001805701 Wang Yueou C/O GRID DYNAMICS HOLDINGS, INC. 5000 EXECUTIVE PARKWAY, SUITE 520 SAN RAMON CA 94583 1 0 0 0 Common Stock 2021-11-19 4 M 0 9156 3.54 A 25690 D Common Stock 2021-11-19 4 S 0 9156 38.5904 D 16534 D Stock Option (right to buy) 3.54 2021-11-19 4 M 0 9156 0.00 D 2028-11-11 Common Stock 9156 42397 D This transaction was executed in multiple trades at prices ranging from $38.50 to $38.80. The price reported above reflects the weighted average sale price. The Reporting Person undertakes to provide upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate sale price. The shares subject to the option are fully vested and immediately exercisable. /s/ Anil Doradla, by power of attorney 2021-11-23