Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| GRID DYNAMICS HOLDINGS, INC.GDYN · Entity 2031 | Director | December 23, 2025 | December 29, 2025 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
GRID DYNAMICS HOLDINGS, INC.
Report date December 23, 2025 · Filed December 29, 2025
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 47,125 |
Ending reported balance
After 2025-12-23 transaction · row 2
2 source rows · reconciled sequenceRow 1 · 2025-12-23 · Grant · Acquired 8,152 · Balance 42,778 F1: These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Common Stock. 100% of the RSUs shall vest on December 23, 2026, subject to the Reporting Person continuing as a service provider through such date. Row 2 · 2025-12-23 · Grant · Acquired 4,347 · Balance 47,125 F2: These securities are RSUs, each of which represents a contingent right to receive one share of Common Stock. One-quarter of the RSUs shall vest on March 23, 2026 and one-quarter shall vest on each three-month anniversary thereafter, subject to the Reporting Person continuing as a service provider in the same Grid Dynamics Holdings, Inc. board of directors and (if applicable) board committee roles through each such date. |
Filing footnotes · ownership attribution and instrument terms
F1: These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Common Stock. 100% of the RSUs shall vest on December 23, 2026, subject to the Reporting Person continuing as a service provider through such date.
F2: These securities are RSUs, each of which represents a contingent right to receive one share of Common Stock. One-quarter of the RSUs shall vest on March 23, 2026 and one-quarter shall vest on each three-month anniversary thereafter, subject to the Reporting Person continuing as a service provider in the same Grid Dynamics Holdings, Inc. board of directors and (if applicable) board committee roles through each such date.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| December 23, 2025 Filed Dec 29, 2025 18:08 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | GrantCommon Stock | 4,347 | $0.00 | $0.00 |
DisclosureSEC source: 0000899140-25-001475 · form4.xml · nonDerivative · entry 2 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 47,125 F2 · shares: These securities are RSUs, each of which represents a contingent right to receive one share of Common Stock. One-quarter of the RSUs shall vest on March 23, 2026 and one-quarter shall vest on each three-month anniversary thereafter, subject to the Reporting Person continuing as a service provider in the same Grid Dynamics Holdings, Inc. board of directors and (if applicable) board committee roles through each such date. Read SEC document |
| December 23, 2025 Filed Dec 29, 2025 18:08 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | GrantCommon Stock | 8,152 | $0.00 | $0.00 |
DisclosureSEC source: 0000899140-25-001475 · form4.xml · nonDerivative · entry 1 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 42,778 F1 · shares: These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Common Stock. 100% of the RSUs shall vest on December 23, 2026, subject to the Reporting Person continuing as a service provider through such date. Read SEC document |
| December 23, 2024 Filed Dec 26, 2024 20:28 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | GrantCommon Stock | 3,672 | $20.42 | $74,982.24 |
DisclosureSEC source: 0000899140-24-001403 · form4.xml · nonDerivative · entry 1 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 34,626 F1 · shares: These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Common Stock. 100% of the RSUs shall vest on December 23, 2025, subject to the Reporting Person continuing as a service provider through such date. Read SEC document |
| December 19, 2023 Filed Dec 26, 2023 21:01 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | GrantCommon Stock | 5,559 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-23-059735 · doc4.xml · nonDerivative · entry 1 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 30,954 F1 · shares: These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Common Stock. 100% of the RSUs shall vest on December 19, 2024, subject to the Reporting Person continuing as a service provider through such date. Read SEC document |
| December 22, 2022 Filed Dec 27, 2022 17:59 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | GrantCommon Stock | 6,811 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-22-062736 · doc4.xml · nonDerivative · entry 1 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 25,395 F1 · shares: These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Common Stock. 100% of the RSUs shall vest on December 22, 2023, subject to the Reporting Person continuing as a service provider through such date. Read SEC document |
| December 20, 2021 Filed Dec 22, 2021 16:12 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | GrantCommon Stock | 2,050 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-21-070926 · doc4.xml · nonDerivative · entry 1 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 18,584 F1 · shares: These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Common Stock. 100% of the RSUs shall vest on December 22, 2022, subject to the Reporting Person continuing as a service provider through such date. Read SEC document |
| November 19, 2021 Filed Nov 23, 2021 16:55 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | Exercise / conversionStock Option (right to buy) · Derivative | 9,156 | $0.00 Strike: $3.54 | $0.00 |
DisclosureSEC source: 0001209191-21-066503 · doc4.xml · derivative · entry 3 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 42,397 Underlying: Common Stock · 9,156 shares Expires 2028-11-11 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_date: The shares subject to the option are fully vested and immediately exercisable. Read SEC document |
| November 19, 2021 Filed Nov 23, 2021 16:55 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | SaleCommon Stock | 9,156 | $38.59 | $353,333.70 |
DisclosureSEC source: 0001209191-21-066503 · doc4.xml · nonDerivative · entry 2 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 16,534 F1 · price: 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. Read SEC document |
| November 19, 2021 Filed Nov 23, 2021 16:55 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | Exercise / conversionCommon Stock | 9,156 | $3.54 | $32,412.24 |
DisclosureSEC source: 0001209191-21-066503 · doc4.xml · nonDerivative · entry 1 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 25,690 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| November 11, 2021 Filed Nov 12, 2021 19:33 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | Exercise / conversionStock Option (right to buy) · Derivative | 10,000 | $0.00 Strike: $3.54 | $0.00 |
DisclosureSEC source: 0001209191-21-064353 · doc4.xml · derivative · entry 6 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 51,553 Underlying: Common Stock · 10,000 shares Expires 2028-11-11 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_date: The shares subject to the option are fully vested and immediately exercisable. Read SEC document |
| November 11, 2021 Filed Nov 12, 2021 19:33 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | SaleCommon Stock | 10,000 | $37.82 | $378,206.00 |
DisclosureSEC source: 0001209191-21-064353 · doc4.xml · nonDerivative · entry 4 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 16,534 F2 · price: This transaction was executed in multiple trades at prices ranging from $37.50 to $38.25. 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. Read SEC document |
| November 11, 2021 Filed Nov 12, 2021 19:33 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | Exercise / conversionCommon Stock | 10,000 | $3.54 | $35,400.00 |
DisclosureSEC source: 0001209191-21-064353 · doc4.xml · nonDerivative · entry 3 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 26,534 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| November 09, 2021 Filed Nov 12, 2021 19:33 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | Exercise / conversionStock Option (right to buy) · Derivative | 10,000 | $0.00 Strike: $3.54 | $0.00 |
DisclosureSEC source: 0001209191-21-064353 · doc4.xml · derivative · entry 5 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 61,553 Underlying: Common Stock · 10,000 shares Expires 2028-11-11 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F3 · derivative.exercise_date: The shares subject to the option are fully vested and immediately exercisable. Read SEC document |
| November 09, 2021 Filed Nov 12, 2021 19:33 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | SaleCommon Stock | 10,000 | $36.66 | $366,617.00 |
DisclosureSEC source: 0001209191-21-064353 · doc4.xml · nonDerivative · entry 2 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 16,534 F1 · price: This transaction was executed in multiple trades at prices ranging from $36.50 to $36.85. 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. Read SEC document |
| November 09, 2021 Filed Nov 12, 2021 19:33 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | Exercise / conversionCommon Stock | 10,000 | $3.54 | $35,400.00 |
DisclosureSEC source: 0001209191-21-064353 · doc4.xml · nonDerivative · entry 1 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 26,534 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| August 31, 2021 Filed Sep 2, 2021 17:56 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | Exercise / conversionStock Option (right to buy) · Derivative | 80,000 | $0.00 Strike: $3.54 | $0.00 |
DisclosureSEC source: 0001209191-21-054538 · doc4.xml · derivative · entry 3 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 71,553 Underlying: Common Stock · 80,000 shares Expires 2028-11-11 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_date: The shares subject to the option are fully vested and immediately exercisable. Read SEC document |
| August 31, 2021 Filed Sep 2, 2021 17:56 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | SaleCommon Stock | 80,000 | $25.76 | $2,060,416.00 |
DisclosureSEC source: 0001209191-21-054538 · doc4.xml · nonDerivative · entry 2 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 16,534 F1 · price: This transaction was executed in multiple trades at prices ranging from $25.58 to $26.28. 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. Read SEC document |
| August 31, 2021 Filed Sep 2, 2021 17:56 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | Exercise / conversionCommon Stock | 80,000 | $3.54 | $283,200.00 |
DisclosureSEC source: 0001209191-21-054538 · doc4.xml · nonDerivative · entry 1 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 96,534 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| May 13, 2021 Filed May 17, 2021 18:25 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | Exercise / conversionStock Option (right to buy) · Derivative | 27,911 | $0.00 Strike: $3.54 | $0.00 |
DisclosureSEC source: 0001209191-21-033284 · doc4.xml · derivative · entry 4 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 27,911 shares Expires 2029-05-21 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_date: The shares subject to the option are fully vested and immediately exercisable. Read SEC document |
| May 13, 2021 Filed May 17, 2021 18:25 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | Exercise / conversionStock Option (right to buy) · Derivative | 11,139 | $0.00 Strike: $3.54 | $0.00 |
DisclosureSEC source: 0001209191-21-033284 · doc4.xml · derivative · entry 3 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 Underlying: Common Stock · 11,139 shares Expires 2029-05-21 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. F2 · derivative.exercise_date: The shares subject to the option are fully vested and immediately exercisable. Read SEC document |
| May 13, 2021 Filed May 17, 2021 18:25 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | SaleCommon Stock | 39,050 | $15.97 | $623,523.07 |
DisclosureSEC source: 0001209191-21-033284 · doc4.xml · nonDerivative · entry 2 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 16,534 F1 · price: This transaction was executed in multiple trades at prices ranging from $15.66 to $16.35. 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. Read SEC document |
| May 13, 2021 Filed May 17, 2021 18:25 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | Exercise / conversionCommon Stock | 39,050 | $3.54 | $138,237.00 |
DisclosureSEC source: 0001209191-21-033284 · doc4.xml · nonDerivative · entry 1 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 55,584 Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event. Read SEC document |
| March 01, 2021 Filed Mar 4, 2021 20:13 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | GrantCommon Stock | 640 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-21-018039 · doc4.xml · nonDerivative · entry 1 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 16,534 F1 · shares: These securities are fully vested restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Common Stock. As previously reported, these restricted stock units were granted in lieu of individual quarterly cash retainer payments for Board service for the Issuer that the Reporting Person would have otherwise received pursuant to the Issuer's Outside Director Compensation Policy. Read SEC document |
| December 15, 2020 Filed Dec 17, 2020 19:29 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | GrantCommon Stock | 6,762 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-20-064241 · doc4.xml · nonDerivative · entry 1 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 15,894 F1 · shares: These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Common Stock. 100% of the RSUs shall vest on December 15, 2021, subject to the Reporting Person continuing as a service provider through such date. Read SEC document |
| November 02, 2020 Filed Nov 4, 2020 18:04 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | GrantCommon Stock | 1,270 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-20-056974 · doc4.xml · nonDerivative · entry 1 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 9,132 F1 · shares: These securities are fully vested restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Common Stock. As previously reported, these restricted stock units were granted in lieu of individual quarterly cash retainer payments for Board service for the Issuer that the Reporting Person would have otherwise received pursuant to the Issuer's Outside Director Compensation Policy. Read SEC document |
| September 17, 2020 Filed Sep 21, 2020 16:25 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | GrantCommon Stock | 6,405 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-20-051282 · doc4.xml · nonDerivative · entry 1 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 7,862 F1 · shares: These securities are restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Common Stock. 100% of the RSUs shall vest on March 6, 2021, subject to the Reporting Person continuing as a service provider through such date. Read SEC document |
| August 03, 2020 Filed Aug 5, 2020 17:13 UTC | GRID DYNAMICS HOLDINGS, INC. GDYN · Entity 2031 | GrantCommon Stock | 1,457 | $0.00 | $0.00 |
DisclosureSEC source: 0001209191-20-045193 · doc4.xml · nonDerivative · entry 1 Wang Yueou · CIK 0001805701 · Director 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 1,457 F1 · shares: These securities are fully vested restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of Common Stock. As previously reported, these restricted stock units were granted in lieu of individual quarterly cash retainer payments for Board service for the Issuer that the Reporting Person would have otherwise received pursuant to the Issuer's Outside Director Compensation Policy. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.