Ownership & Insider Lab

Look up a company to review current SEC-traceable insider positions, exact reporting-owner relationships across other published companies, a dated chronology of the published ownership evidence, and recent supported insider transactions where transaction history is separately available.
Coverage follows the existing reviewed company dataset and fails closed when a ticker is not currently supported.

GRID DYNAMICS HOLDINGS, INC. (GDYN)

Nasdaq · SEC CIK 0001743725

$29.9MCovered current disclosed holdings
2Covered reporting owners
2Covered direct positions
2Source ownership filings

This is the supported SEC-traceable subset, not total insider ownership or personal wealth. Values reflect the current disclosed positions Grizzly Bulls can resolve and value. Latest source filing: Sep 3, 2026 · values through Sep 25, 2026.

Covered reporting owners

Filter the reporting-owner snapshot by holder, role, or security. Position values are shown only where the current reviewed data supports them.

2 shown
HolderRolePositionCurrent valueLatest filing
Leonard LivschitzResearch disclosed relationshipsCHIEF EXECUTIVE OFFICER · Director3,355,528 sharesCommon Stock, par value $0.0001 per share$26.01MAug 24, 2026
Yury GryzlovResearch disclosed relationshipsCHIEF OPERATING OFFICER503,070 sharesCommon Stock, par value $0.0001 per share$3.9MSep 3, 2026

Reporting-owner research graph

These relationships are joined only when the same single SEC reporting-owner CIK appears unambiguously across the publication-authorized company ownership universe. Name similarity is never used to create a relationship.

This graph is bounded to the company ownership relationships currently published by Grizzly Bulls. It is not a complete employment, board, ownership, portfolio, or wealth history, and a missing relationship does not establish that none exists.

SEC transaction evidence ledger

Each row preserves the reviewed SEC transaction evidence, including the effective-date basis, amendment state, reported post-transaction position when present, and a separately published current covered owner/security position when one can be matched uniquely. Reported price is shown when present. The lab does not calculate gross proceeds, reconstruct balances between filings, or treat historical transactions as current wealth.

8 shown
Effective dateHolderActionSecurityUnitsReported priceReported position after transactionCurrent covered positionFiling
Sep 3, 2026Transaction dateYury GryzlovResearch disclosed relationshipsSaleSEC code SCommon Stock, par value $0.0001 per share3,918 shares$8503,070 shares503,070 sharesOwner coverage latest filing Sep 3, 20264Filed Sep 3, 2026
Aug 18, 2026Transaction dateYury GryzlovResearch disclosed relationshipsSaleSEC code SCommon Stock, par value $0.0001 per share467 shares$7.53506,988 shares503,070 sharesOwner coverage latest filing Sep 3, 20264Filed Aug 19, 2026
Aug 14, 2026Transaction dateYury GryzlovResearch disclosed relationshipsDispositionSEC code FCommon Stock, par value $0.0001 per share632 shares$7.75507,455 shares503,070 sharesOwner coverage latest filing Sep 3, 20264Filed Aug 17, 2026
Aug 13, 2026Transaction dateYury GryzlovResearch disclosed relationshipsSaleSEC code SCommon Stock, par value $0.0001 per share3,930 shares$8508,087 shares503,070 sharesOwner coverage latest filing Sep 3, 20264Filed Aug 13, 2026
Jul 2, 2026Transaction dateYury GryzlovResearch disclosed relationshipsSaleSEC code SCommon Stock, par value $0.0001 per share1,245 shares$6.29512,017 shares503,070 sharesOwner coverage latest filing Sep 3, 20264Filed Jul 2, 2026
Jul 2, 2026Transaction dateLeonard LivschitzResearch disclosed relationshipsDispositionSEC code FCommon Stock, par value $0.0001 per share35,968 shares$6.243,355,528 shares3,355,528 sharesOwner coverage latest filing Aug 24, 20264Filed Jul 2, 2026
Jul 1, 2026Transaction dateAmended filingLeonard LivschitzResearch disclosed relationshipsDispositionSEC code FCommon Stock, par value $0.0001 per share35,968 shares$6.243,355,528 shares3,355,528 sharesOwner coverage latest filing Aug 24, 20264/AFiled Jul 2, 2026
Jul 1, 2026Transaction dateYury GryzlovResearch disclosed relationshipsDispositionSEC code FCommon Stock, par value $0.0001 per share1,686 shares$6.24513,262 shares503,070 sharesOwner coverage latest filing Sep 3, 20264Filed Jul 2, 2026

A reported post-transaction position is the balance stated in that historical transaction filing. A current covered position is a separate latest owner/security observation and may reflect later filings or activity. They are shown side by side as evidence points, not as a reconstructed continuous ledger.

Published 8 of 8 source candidates under the current reviewed security-resolution rules.

Covered securities

SecurityInstrument familyCovered positionsCovered value
Common Stock, par value $0.0001 per shareordinary-share2$29.9M

Coverage and interpretation

Current holdings: direct positions that the reviewed ownership data can trace to an exact reporting owner, legal security, and current-basis quantity.

Current value: the existing published company-position valuation. This lab does not recalculate security values or infer missing positions.

Transaction evidence: historical flow observations with filing provenance. Reported post-transaction balances and current covered positions are separate evidence points; the lab does not interpolate ownership between them.

Reporting-owner graph: exact reporting-owner CIK relationships across the published company universe. It does not merge people by name or create a complete personal history.

Not included here: a claim of total insider ownership, total personal wealth, institutional 13F ownership, a transaction-value estimate, an insider sentiment score, or an investment recommendation.

Published ownership evidence chronology

This sequence orders only the ownership evidence already published by Grizzly Bulls for the exact reporting-owner relationships above. Transaction rows are ordered by filing date while preserving the separate economic effective date and its basis. Current covered snapshots remain separate latest observations.

The chronology does not interpolate ownership between entries, infer missing activity, pair an amended filing with an assumed parent, infer amendment supersession, or treat a current covered snapshot as proof of continuous ownership.

Leonard Livschitz

SEC reporting-owner CIK 0001805657 · 1 published relationship company

SEC owner filings
Evidence dateCompanyObservationSecurity / positionSource
Aug 24, 2026Latest represented filing dateGRID DYNAMICS HOLDINGS, INC. (GDYN)NasdaqCurrent covered snapshotCHIEF EXECUTIVE OFFICER · DirectorValuation observation Sep 25, 2026Common Stock, par value $0.0001 per share: 3,355,528 sharesCurrent covered company value: $26.01MPublished current ownership snapshotForms represented: 4Owner filingsIssuer filings
Jul 2, 2026Filed dateGRID DYNAMICS HOLDINGS, INC. (GDYN)NasdaqDispositionSEC code FEffective Jul 2, 2026 · transaction dateReported units 35,968 shares · reported price 6.24Common Stock, par value $0.0001 per shareReported position after transaction: 3,355,528 shares4 filing0001628280-26-046916
Jul 2, 2026Filed dateGRID DYNAMICS HOLDINGS, INC. (GDYN)NasdaqDispositionSEC code FEffective Jul 1, 2026 · transaction dateAmended filing · shown as a separate observationReported units 35,968 shares · reported price 6.24Common Stock, par value $0.0001 per shareReported position after transaction: 3,355,528 shares4/A filing0001628280-26-047082

Company-level recent transaction history is published for 1 of 1 relationship companies in this graph; 2 published transaction rows for this exact reporting-owner CIK appear in the chronology.

Yury Gryzlov

SEC reporting-owner CIK 0001805673 · 1 published relationship company

SEC owner filings
Evidence dateCompanyObservationSecurity / positionSource
Sep 3, 2026Latest represented filing dateGRID DYNAMICS HOLDINGS, INC. (GDYN)NasdaqCurrent covered snapshotCHIEF OPERATING OFFICERValuation observation Sep 25, 2026Common Stock, par value $0.0001 per share: 503,070 sharesCurrent covered company value: $3.9MPublished current ownership snapshotForms represented: 4Owner filingsIssuer filings
Sep 3, 2026Filed dateGRID DYNAMICS HOLDINGS, INC. (GDYN)NasdaqSaleSEC code SEffective Sep 3, 2026 · transaction dateReported units 3,918 shares · reported price 8Common Stock, par value $0.0001 per shareReported position after transaction: 503,070 shares4 filing0001628280-26-060496
Aug 19, 2026Filed dateGRID DYNAMICS HOLDINGS, INC. (GDYN)NasdaqSaleSEC code SEffective Aug 18, 2026 · transaction dateReported units 467 shares · reported price 7.53Common Stock, par value $0.0001 per shareReported position after transaction: 506,988 shares4 filing0001628280-26-057982
Aug 17, 2026Filed dateGRID DYNAMICS HOLDINGS, INC. (GDYN)NasdaqDispositionSEC code FEffective Aug 14, 2026 · transaction dateReported units 632 shares · reported price 7.75Common Stock, par value $0.0001 per shareReported position after transaction: 507,455 shares4 filing0001628280-26-057484
Aug 13, 2026Filed dateGRID DYNAMICS HOLDINGS, INC. (GDYN)NasdaqSaleSEC code SEffective Aug 13, 2026 · transaction dateReported units 3,930 shares · reported price 8Common Stock, par value $0.0001 per shareReported position after transaction: 508,087 shares4 filing0001628280-26-056862
Jul 2, 2026Filed dateGRID DYNAMICS HOLDINGS, INC. (GDYN)NasdaqDispositionSEC code FEffective Jul 1, 2026 · transaction dateReported units 1,686 shares · reported price 6.24Common Stock, par value $0.0001 per shareReported position after transaction: 513,262 shares4 filing0001628280-26-046927
Jul 2, 2026Filed dateGRID DYNAMICS HOLDINGS, INC. (GDYN)NasdaqSaleSEC code SEffective Jul 2, 2026 · transaction dateReported units 1,245 shares · reported price 6.29Common Stock, par value $0.0001 per shareReported position after transaction: 512,017 shares4 filing0001628280-26-047078

Company-level recent transaction history is published for 1 of 1 relationship companies in this graph; 6 published transaction rows for this exact reporting-owner CIK appear in the chronology.

Continue this ownership research

These handoffs preserve the exact company identities already represented in the reporting-owner graph. My Stocks keeps a listed company in your existing research lists. Research Inbox is a separate company-change update workflow.

Saving a company to My Stocks never enables updates, and opening Research Inbox never subscribes you automatically. Each update remains an explicit company-level opt-in under the existing Research Inbox consent flow.

CompanyReporting-owner contextPublished evidenceContinue research
GRID DYNAMICS HOLDINGS, INC. (GDYN)Nasdaq · Current company10Published chronology observationsLatest represented evidence Sep 3, 2026

These are company-level continuation paths, not reporting-owner subscriptions. Saving or watching one company does not automatically save or watch the other companies connected to the same reporting owner, and it does not create an owner-level alert.