X0508 4 2026-03-10 0001743725 GRID DYNAMICS HOLDINGS, INC. GDYN 0001805673 Gryzlov Yury C/O GRID DYNAMICS HOLDINGS, INC. 6101 BOLLINGER CANYON ROAD, SUITE 465 SAN RAMON CA 94583 true CHIEF OPERATING OFFICER true Common Stock 2026-03-10 4 S 0 21266 6.22 D 523413 D These shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 13, 2025. This transaction was executed in multiple trades at prices ranging from $6.07 to $6.45. 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. /s/ Anil Doradla, by power of attorney 2026-03-12