NYSE · SEC CIK 0000310158
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: Aug 12, 2026 · values through Sep 25, 2026.
Filter the reporting-owner snapshot by holder, role, or security. Position values are shown only where the current reviewed data supports them.
| Holder | Role | Position | Current value | Latest filing |
|---|---|---|---|---|
| Richard R. DelucaResearch disclosed relationships | EVP&Pres, Merck Animal Heallth | 110,167.070000000007 sharesCommon Stock ($0.50 par value) | $16.39M | Aug 12, 2026 |
| David Michael WilliamsResearch disclosed relationships | EVP,Chief Info&Digital Officer | 31,716.037 sharesCommon Stock ($0.50 par value) | $4.72M | Aug 7, 2026 |
| David R. MaraldoResearch disclosed relationships | EVP & Pres. MMD | 18,212.434000000001 sharesCommon Stock ($0.50 par value) | $2.71M | Aug 7, 2026 |
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.
SEC reporting-owner CIK 0001820958 · 1 published company relationship
| Company | SEC relationship | Covered position | Current covered value | Latest filing | Research |
|---|---|---|---|---|---|
| Merck & Co., Inc. (MRK)NYSE · Current company | EVP,Chief Info&Digital Officer | 31,716.037 sharesCommon Stock ($0.50 par value) | $4.72M | Aug 7, 2026 |
SEC reporting-owner CIK 0002126478 · 1 published company relationship
| Company | SEC relationship | Covered position | Current covered value | Latest filing | Research |
|---|---|---|---|---|---|
| Merck & Co., Inc. (MRK)NYSE · Current company | EVP & Pres. MMD | 18,212.434000000001 sharesCommon Stock ($0.50 par value) | $2.71M | Aug 7, 2026 |
SEC reporting-owner CIK 0001421339 · 1 published company relationship
| Company | SEC relationship | Covered position | Current covered value | Latest filing | Research |
|---|---|---|---|---|---|
| Merck & Co., Inc. (MRK)NYSE · Current company | EVP&Pres, Merck Animal Heallth | 110,167.070000000007 sharesCommon Stock ($0.50 par value) | $16.39M | Aug 12, 2026 |
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.
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.
| Effective date | Holder | Action | Security | Units | Reported price | Reported position after transaction | Current covered position | Filing |
|---|---|---|---|---|---|---|---|---|
| Aug 12, 2026Transaction date | Richard R. DelucaResearch disclosed relationships | SaleSEC code S | Common Stock ($0.50 par value) | 600 shares | $132.0367 | 110,167.07 shares | 110,167.070000000007 sharesOwner coverage latest filing Aug 12, 2026 | 4Filed Aug 12, 2026 |
| Aug 12, 2026Transaction date | Richard R. DelucaResearch disclosed relationships | SaleSEC code S | Common Stock ($0.50 par value) | 11,099 shares | $131.6128 | 110,767.07 shares | 110,167.070000000007 sharesOwner coverage latest filing Aug 12, 2026 | 4Filed Aug 12, 2026 |
| Aug 11, 2026Transaction date | Richard R. DelucaResearch disclosed relationships | SaleSEC code S | Common Stock ($0.50 par value) | 5,427 shares | $132.3496 | 121,866.07 shares | 110,167.070000000007 sharesOwner coverage latest filing Aug 12, 2026 | 4Filed Aug 12, 2026 |
| Aug 11, 2026Transaction date | Richard R. DelucaResearch disclosed relationships | SaleSEC code S | Common Stock ($0.50 par value) | 7,410 shares | $131.3313 | 127,293.07 shares | 110,167.070000000007 sharesOwner coverage latest filing Aug 12, 2026 | 4Filed Aug 12, 2026 |
| Aug 10, 2026Transaction date | Richard R. DelucaResearch disclosed relationships | SaleSEC code S | Common Stock ($0.50 par value) | 20,784 shares | $130.4345 | 134,703.07 shares | 110,167.070000000007 sharesOwner coverage latest filing Aug 12, 2026 | 4Filed Aug 12, 2026 |
| Aug 6, 2026Transaction date | Richard R. DelucaResearch disclosed relationships | SaleSEC code S | Common Stock ($0.50 par value) | 300 shares | $131.0233 | 155,487.07 shares | 110,167.070000000007 sharesOwner coverage latest filing Aug 12, 2026 | 4Filed Aug 10, 2026 |
| Aug 6, 2026Transaction date | Richard R. DelucaResearch disclosed relationships | SaleSEC code S | Common Stock ($0.50 par value) | 4,945 shares | $130.2312 | 155,787.07 shares | 110,167.070000000007 sharesOwner coverage latest filing Aug 12, 2026 | 4Filed Aug 10, 2026 |
| Aug 6, 2026Transaction date | Richard R. DelucaResearch disclosed relationships | SaleSEC code S | Common Stock ($0.50 par value) | 805 shares | $131.0216 | 160,732.07 shares | 110,167.070000000007 sharesOwner coverage latest filing Aug 12, 2026 | 4Filed Aug 10, 2026 |
| Aug 5, 2026Transaction date | David R. MaraldoResearch disclosed relationships | SaleSEC code S | Common Stock ($0.50 par value) | 2,686 shares | $128.7179 | 18,212.434 shares | 18,212.434000000001 sharesOwner coverage latest filing Aug 7, 2026 | 4Filed Aug 7, 2026 |
| Aug 5, 2026Transaction date | David R. MaraldoResearch disclosed relationships | AcquisitionSEC code M | Common Stock ($0.50 par value) | 2,686 shares | $84.71 | 20,898.434 shares | 18,212.434000000001 sharesOwner coverage latest filing Aug 7, 2026 | 4Filed Aug 7, 2026 |
| Aug 5, 2026Transaction date | David R. MaraldoResearch disclosed relationships | SaleSEC code S | Common Stock ($0.50 par value) | 9,709 shares | $128.7179 | 18,212.434 shares | 18,212.434000000001 sharesOwner coverage latest filing Aug 7, 2026 | 4Filed Aug 7, 2026 |
| Aug 5, 2026Transaction date | David R. MaraldoResearch disclosed relationships | AcquisitionSEC code M | Common Stock ($0.50 par value) | 9,709 shares | $87.1 | 27,921.434 shares | 18,212.434000000001 sharesOwner coverage latest filing Aug 7, 2026 | 4Filed Aug 7, 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 12 of 22 source candidates under the current reviewed security-resolution rules.
| Security | Instrument family | Covered positions | Covered value |
|---|---|---|---|
| Common Stock ($0.50 par value) | ordinary-share | 3 | $23.82M |
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.
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.
| Evidence date | Company | Observation | Security / position | Source |
|---|---|---|---|---|
| Aug 7, 2026Latest represented filing date | Merck & Co., Inc. (MRK)NYSE | Current covered snapshotEVP,Chief Info&Digital OfficerValuation observation Sep 25, 2026 | Common Stock ($0.50 par value): 31,716.037 sharesCurrent covered company value: $4.72M | Published current ownership snapshotForms represented: 4Owner filingsIssuer filings |
Company-level recent transaction history is published for 1 of 1 relationship companies in this graph; 0 published transaction rows for this exact reporting-owner CIK appear in the chronology. 1 relationship company is at the current public transaction-row limit; that does not prove additional rows exist.
| Evidence date | Company | Observation | Security / position | Source |
|---|---|---|---|---|
| Aug 7, 2026Latest represented filing date | Merck & Co., Inc. (MRK)NYSE | Current covered snapshotEVP & Pres. MMDValuation observation Sep 25, 2026 | Common Stock ($0.50 par value): 18,212.434000000001 sharesCurrent covered company value: $2.71M | Published current ownership snapshotForms represented: 4Owner filingsIssuer filings |
| Aug 7, 2026Filed date | Merck & Co., Inc. (MRK)NYSE | AcquisitionSEC code MEffective Aug 5, 2026 · transaction dateReported units 9,709 shares · reported price 87.1 | Common Stock ($0.50 par value)Reported position after transaction: 27,921.434 shares | 4 filing0000310158-26-000215 |
| Aug 7, 2026Filed date | Merck & Co., Inc. (MRK)NYSE | SaleSEC code SEffective Aug 5, 2026 · transaction dateReported units 9,709 shares · reported price 128.7179 | Common Stock ($0.50 par value)Reported position after transaction: 18,212.434 shares | 4 filing0000310158-26-000215 |
| Aug 7, 2026Filed date | Merck & Co., Inc. (MRK)NYSE | AcquisitionSEC code MEffective Aug 5, 2026 · transaction dateReported units 2,686 shares · reported price 84.71 | Common Stock ($0.50 par value)Reported position after transaction: 20,898.434 shares | 4 filing0000310158-26-000215 |
| Aug 7, 2026Filed date | Merck & Co., Inc. (MRK)NYSE | SaleSEC code SEffective Aug 5, 2026 · transaction dateReported units 2,686 shares · reported price 128.7179 | Common Stock ($0.50 par value)Reported position after transaction: 18,212.434 shares | 4 filing0000310158-26-000215 |
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. 1 relationship company is at the current public transaction-row limit; that does not prove additional rows exist.
| Evidence date | Company | Observation | Security / position | Source |
|---|---|---|---|---|
| Aug 12, 2026Latest represented filing date | Merck & Co., Inc. (MRK)NYSE | Current covered snapshotEVP&Pres, Merck Animal HeallthValuation observation Sep 25, 2026 | Common Stock ($0.50 par value): 110,167.070000000007 sharesCurrent covered company value: $16.39M | Published current ownership snapshotForms represented: 4Owner filingsIssuer filings |
| Aug 12, 2026Filed date | Merck & Co., Inc. (MRK)NYSE | SaleSEC code SEffective Aug 10, 2026 · transaction dateReported units 20,784 shares · reported price 130.4345 | Common Stock ($0.50 par value)Reported position after transaction: 134,703.07 shares | 4 filing0000310158-26-000219 |
| Aug 12, 2026Filed date | Merck & Co., Inc. (MRK)NYSE | SaleSEC code SEffective Aug 11, 2026 · transaction dateReported units 7,410 shares · reported price 131.3313 | Common Stock ($0.50 par value)Reported position after transaction: 127,293.07 shares | 4 filing0000310158-26-000219 |
| Aug 12, 2026Filed date | Merck & Co., Inc. (MRK)NYSE | SaleSEC code SEffective Aug 11, 2026 · transaction dateReported units 5,427 shares · reported price 132.3496 | Common Stock ($0.50 par value)Reported position after transaction: 121,866.07 shares | 4 filing0000310158-26-000219 |
| Aug 12, 2026Filed date | Merck & Co., Inc. (MRK)NYSE | SaleSEC code SEffective Aug 12, 2026 · transaction dateReported units 11,099 shares · reported price 131.6128 | Common Stock ($0.50 par value)Reported position after transaction: 110,767.07 shares | 4 filing0000310158-26-000219 |
| Aug 12, 2026Filed date | Merck & Co., Inc. (MRK)NYSE | SaleSEC code SEffective Aug 12, 2026 · transaction dateReported units 600 shares · reported price 132.0367 | Common Stock ($0.50 par value)Reported position after transaction: 110,167.07 shares | 4 filing0000310158-26-000219 |
| Aug 10, 2026Filed date | Merck & Co., Inc. (MRK)NYSE | SaleSEC code SEffective Aug 6, 2026 · transaction dateReported units 805 shares · reported price 131.0216 | Common Stock ($0.50 par value)Reported position after transaction: 160,732.07 shares | 4 filing0000310158-26-000217 |
| Aug 10, 2026Filed date | Merck & Co., Inc. (MRK)NYSE | SaleSEC code SEffective Aug 6, 2026 · transaction dateReported units 4,945 shares · reported price 130.2312 | Common Stock ($0.50 par value)Reported position after transaction: 155,787.07 shares | 4 filing0000310158-26-000217 |
| Aug 10, 2026Filed date | Merck & Co., Inc. (MRK)NYSE | SaleSEC code SEffective Aug 6, 2026 · transaction dateReported units 300 shares · reported price 131.0233 | Common Stock ($0.50 par value)Reported position after transaction: 155,487.07 shares | 4 filing0000310158-26-000217 |
Company-level recent transaction history is published for 1 of 1 relationship companies in this graph; 8 published transaction rows for this exact reporting-owner CIK appear in the chronology. 1 relationship company is at the current public transaction-row limit; that does not prove additional rows exist.
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.
| Company | Reporting-owner context | Published evidence | Continue research |
|---|---|---|---|
| Merck & Co., Inc. (MRK)NYSE · Current company | David Michael WilliamsSEC CIK 00018209581 chronology observationDavid R. MaraldoSEC CIK 00021264785 chronology observationsRichard R. DelucaSEC CIK 00014213399 chronology observations | 15Published chronology observationsLatest represented evidence Aug 12, 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.
