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.

HARMONIC INC. (HLIT)

Nasdaq · SEC CIK 0000851310

$2.33MCovered 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 15, 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
Walter JankovicResearch disclosed relationshipsChief Financial Officer166,839 sharesCommon stock, $0.001 par value$1.84MSep 15, 2026
Ronald J. GlahnResearch disclosed relationshipsSVP, Global Sales, Broadband44,463 sharesCommon stock, $0.001 par value$489.98KAug 18, 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 11, 2026Transaction dateWalter JankovicResearch disclosed relationshipsDispositionSEC code FCommon stock, $0.001 par value732 shares$12166,839 shares166,839 sharesOwner coverage latest filing Sep 15, 20264Filed Sep 15, 2026
Sep 11, 2026Transaction dateWalter JankovicResearch disclosed relationshipsAcquisitionSEC code MCommon stock, $0.001 par value1,457 shares$0167,571 shares166,839 sharesOwner coverage latest filing Sep 15, 20264Filed Sep 15, 2026
Aug 15, 2026Transaction dateWalter JankovicResearch disclosed relationshipsDispositionSEC code FCommon stock, $0.001 par value9,930 shares$13.92166,114 shares166,839 sharesOwner coverage latest filing Sep 15, 20264Filed Aug 18, 2026
Aug 15, 2026Transaction dateWalter JankovicResearch disclosed relationshipsAcquisitionSEC code MCommon stock, $0.001 par value19,784 shares$0176,044 shares166,839 sharesOwner coverage latest filing Sep 15, 20264Filed Aug 18, 2026
Aug 15, 2026Transaction dateRonald J. GlahnResearch disclosed relationshipsDispositionSEC code FCommon stock, $0.001 par value1,111 shares$13.9244,463 shares44,463 sharesOwner coverage latest filing Aug 18, 20264Filed Aug 18, 2026
Aug 15, 2026Transaction dateRonald J. GlahnResearch disclosed relationshipsAcquisitionSEC code MCommon stock, $0.001 par value4,038 shares$045,574 shares44,463 sharesOwner coverage latest filing Aug 18, 20264Filed Aug 18, 2026
Jul 15, 2026Transaction dateRonald J. GlahnResearch disclosed relationshipsDispositionSEC code FCommon stock, $0.001 par value1,031 shares$12.9941,536 shares44,463 sharesOwner coverage latest filing Aug 18, 20264Filed Jul 17, 2026
Jul 15, 2026Transaction dateRonald J. GlahnResearch disclosed relationshipsAcquisitionSEC code MCommon stock, $0.001 par value3,750 shares$042,567 shares44,463 sharesOwner coverage latest filing Aug 18, 20264Filed Jul 17, 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, $0.001 par valueordinary-share2$2.33M

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.

Ronald J. Glahn

SEC reporting-owner CIK 0002110438 · 1 published relationship company

SEC owner filings
Evidence dateCompanyObservationSecurity / positionSource
Aug 18, 2026Latest represented filing dateHARMONIC INC. (HLIT)NasdaqCurrent covered snapshotSVP, Global Sales, BroadbandValuation observation Sep 25, 2026Common stock, $0.001 par value: 44,463 sharesCurrent covered company value: $489.98KPublished current ownership snapshotForms represented: 4Owner filingsIssuer filings
Aug 18, 2026Filed dateHARMONIC INC. (HLIT)NasdaqAcquisitionSEC code MEffective Aug 15, 2026 · transaction dateReported units 4,038 shares · reported price 0Common stock, $0.001 par valueReported position after transaction: 45,574 shares4 filing0001193125-26-355768
Aug 18, 2026Filed dateHARMONIC INC. (HLIT)NasdaqDispositionSEC code FEffective Aug 15, 2026 · transaction dateReported units 1,111 shares · reported price 13.92Common stock, $0.001 par valueReported position after transaction: 44,463 shares4 filing0001193125-26-355768
Jul 17, 2026Filed dateHARMONIC INC. (HLIT)NasdaqAcquisitionSEC code MEffective Jul 15, 2026 · transaction dateReported units 3,750 shares · reported price 0Common stock, $0.001 par valueReported position after transaction: 42,567 shares4 filing0001193125-26-308051
Jul 17, 2026Filed dateHARMONIC INC. (HLIT)NasdaqDispositionSEC code FEffective Jul 15, 2026 · transaction dateReported units 1,031 shares · reported price 12.99Common stock, $0.001 par valueReported position after transaction: 41,536 shares4 filing0001193125-26-308051

Company-level recent transaction history is published for 1 of 1 relationship companies in this graph; 4 published transaction rows for this exact reporting-owner CIK appear in the chronology.

Walter Jankovic

SEC reporting-owner CIK 0001730628 · 1 published relationship company

SEC owner filings
Evidence dateCompanyObservationSecurity / positionSource
Sep 15, 2026Latest represented filing dateHARMONIC INC. (HLIT)NasdaqCurrent covered snapshotChief Financial OfficerValuation observation Sep 25, 2026Common stock, $0.001 par value: 166,839 sharesCurrent covered company value: $1.84MPublished current ownership snapshotForms represented: 4Owner filingsIssuer filings
Sep 15, 2026Filed dateHARMONIC INC. (HLIT)NasdaqAcquisitionSEC code MEffective Sep 11, 2026 · transaction dateReported units 1,457 shares · reported price 0Common stock, $0.001 par valueReported position after transaction: 167,571 shares4 filing0001193125-26-392033
Sep 15, 2026Filed dateHARMONIC INC. (HLIT)NasdaqDispositionSEC code FEffective Sep 11, 2026 · transaction dateReported units 732 shares · reported price 12Common stock, $0.001 par valueReported position after transaction: 166,839 shares4 filing0001193125-26-392033
Aug 18, 2026Filed dateHARMONIC INC. (HLIT)NasdaqAcquisitionSEC code MEffective Aug 15, 2026 · transaction dateReported units 19,784 shares · reported price 0Common stock, $0.001 par valueReported position after transaction: 176,044 shares4 filing0001193125-26-355816
Aug 18, 2026Filed dateHARMONIC INC. (HLIT)NasdaqDispositionSEC code FEffective Aug 15, 2026 · transaction dateReported units 9,930 shares · reported price 13.92Common stock, $0.001 par valueReported position after transaction: 166,114 shares4 filing0001193125-26-355816

Company-level recent transaction history is published for 1 of 1 relationship companies in this graph; 4 published transaction rows for this exact reporting-owner CIK appear in the chronology.

Continue this ownership research

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CompanyReporting-owner contextPublished evidenceContinue research
HARMONIC INC. (HLIT)Nasdaq · Current company10Published chronology observationsLatest represented evidence Sep 15, 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.