X0508 4 2025-02-13 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 true Common Stock 2025-02-13 4 A 0 665600 0 A 3657506 D Common Stock 2025-02-18 4 F 0 358425 22.01 D 3299081 D Common Stock 2025-02-18 4 S 0 50000 22.11 D 3249081 D Common Stock 2025-02-14 4 A 0 8750 0 A 13444 I See footnote 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 1, 2024. 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 1, 2024. These shares were sold pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 5, 2024. This transaction was executed in multiple trades at prices ranging from $21.80 to $22.51. 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. These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Common Stock. One-quarter of the RSUs shall vest on February 14, 2026 and one-sixteenth 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. The shares are held by the Reporting Person's spouse. /s/Anil Doradla, by power of attorney 2025-02-18