| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Livschitz Leonard | CHIEF EXECUTIVE OFFICER, Director | C/O GRID DYNAMICS HOLDINGS, INC., 6101 BOLLINGER CANYON ROAD, SUITE 465, SAN RAMON | /s/Anil Doradla, by power of attorney | 10 Feb 2026 | 0001805657 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | GDYN | Common Stock | Award | $0 | +658,240 | +21% | $0.000000 | 3,782,583 | 07 Feb 2026 | Direct | F1 |
| transaction | GDYN | Common Stock | Tax liability | $2,464,526 | -355,119 | -9.4% | $6.94 | 3,427,464 | 10 Feb 2026 | Direct | F2 |
| holding | GDYN | Common Stock | 12,860 | 07 Feb 2026 | See footnote | F3 |
| Id | Content |
|---|---|
| F1 | 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. |
| F2 | 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. |
| F3 | The shares are held by the Reporting Person's spouse. |