A business in context

MRK research notebook

Read the disclosures. Follow the relationships. Keep the dates in view.

Research JSON

Filing timeline

Download filings CSV

SEC submissions · retrieved 2026-10-22 · 8029 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 8-K · Current report

    Report date 2026-10-09 · 0000310158-26-000237 · Items 5.02

  2. 4 · Ownership change

    Report date 2026-09-30 · 0000310158-26-000234

  3. 4 · Ownership change

    Report date 2026-09-30 · 0000310158-26-000232

  4. 4 · Ownership change

    Report date 2026-09-30 · 0000310158-26-000230

  5. 4 · Ownership change

    Report date 2026-08-13 · 0000310158-26-000223

  6. 4 · Ownership change

    Report date 2026-08-12 · 0000310158-26-000221

  7. 4 · Ownership change

    Report date 2026-08-10 · 0000310158-26-000219

  8. 4 · Ownership change

    Report date 2026-08-06 · 0000310158-26-000217

  9. 4 · Ownership change

    Report date 2026-08-05 · 0000310158-26-000215

  10. 10-Q · Quarterly report

    Report date 2026-06-30 · 0000310158-26-000212

  11. 8-K · Current report

    Report date 2026-08-04 · 0001104659-26-090045 · Items 2.02,9.01

  12. 8-K · Current report

    Report date 2026-05-26 · 0001104659-26-067509 · Items 5.07

  13. 8-K · Current report

    Report date 2026-05-22 · 0001628280-26-037738 · Items 8.01,9.01

  14. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001628280-26-029802

  15. 8-K · Current report

    Report date 2026-04-30 · 0001104659-26-052081 · Items 2.02,9.01

  16. DEF 14A · Proxy statement

    Report date 2026-05-26 · 0001193125-26-147704

  17. 10-K · Annual report

    Report date 2025-12-31 · 0000310158-26-000063

  18. 8-K · Current report

    Report date 2026-02-03 · 0001104659-26-009495 · Items 2.02,9.01

  19. 8-K · Current report

    Report date 2025-12-04 · 0001628280-25-055388 · Items 8.01,9.01

  20. 10-Q · Quarterly report

    Report date 2025-09-30 · 0000310158-25-000059

  21. 8-K · Current report

    Report date 2025-10-30 · 0001104659-25-103974 · Items 2.02,9.01

  22. 8-K · Current report

    Report date 2025-09-09 · 0000310158-25-000047 · Items 8.01,9.01

  23. 10-Q · Quarterly report

    Report date 2025-06-30 · 0000310158-25-000014

  24. 8-K · Current report

    Report date 2025-07-25 · 0001104659-25-071380 · Items 2.02,2.05,9.01

  25. 8-K · Current report

    Report date 2025-05-27 · 0001104659-25-054131 · Items 5.07

  26. 10-Q · Quarterly report

    Report date 2025-03-31 · 0001628280-25-021834

  27. 8-K · Current report

    Report date 2025-04-24 · 0001104659-25-038301 · Items 2.02,9.01

  28. DEF 14A · Proxy statement

    Report date 2025-05-27 · 0001193125-25-076859

  29. 10-K · Annual report

    Report date 2024-12-31 · 0001628280-25-007732

  30. 8-K · Current report

    Report date 2025-02-04 · 0001104659-25-008863 · Items 2.02,9.01

  31. 8-K · Current report

    Report date 2024-11-19 · 0001104659-24-122027 · Items 5.02,5.03,9.01

  32. 10-Q · Quarterly report

    Report date 2024-09-30 · 0001628280-24-045689

  33. SC 13G/A · Ownership disclosure

    0000895345-24-000536

  34. 8-K · Current report

    Report date 2024-10-31 · 0001104659-24-112841 · Items 2.02,9.01

  35. 10-Q · Quarterly report

    Report date 2024-06-30 · 0001628280-24-034715

  36. 8-K · Current report

    Report date 2024-07-30 · 0001104659-24-083722 · Items 2.02,9.01

  37. 8-K · Current report

    Report date 2024-05-28 · 0001628280-24-025800 · Items 5.07,8.01,9.01

  38. 10-Q · Quarterly report

    Report date 2024-03-31 · 0001628280-24-020283

  39. 8-K · Current report

    Report date 2024-04-25 · 0001104659-24-051517 · Items 2.02,9.01

  40. DEF 14A · Proxy statement

    Report date 2024-05-28 · 0001193125-24-093204

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-10-15 · 2026 Q3: filings in this completed quarter; not a live transaction feed

Purchases and sales include open-market or private transactions. Grants, exercises and tax withholding are shown separately. Amendments and joint reports can overlap; rows are not a net-buying score. Prices retain the filing's units; consult its footnotes.

Transaction rows by code · counts, not monetary totals
Purchase: 0 transaction rows0PSale: 17 transaction rows17SGrant / award: 3 transaction rows3AExercise / conversion: 16 transaction rows16MTax / exercise payment: 0 transaction rows0FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

36 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-08-13
2026-08-13
Guindo ChirfiS · Sale
Disposed
Common Stock10000.0135.0
2026-08-12
2026-08-13
Zachary JenniferM · Exercise / conversion
Acquired
Common Stock41494.0117.89
2026-08-12
2026-08-13
Zachary JenniferS · Sale
Disposed
Common Stock80315.0133.46
2026-08-12
2026-08-13
Zachary JenniferM · Exercise / conversion
Acquired
Common Stock13433.084.71
2026-08-12
2026-08-13
Zachary JenniferM · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
41494.00.0
2026-08-12
2026-08-13
Zachary JenniferM · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
13433.00.0
2026-08-12
2026-08-12
DeLuca Richard R.S · Sale
Disposed
Common Stock11099.0131.61
2026-08-12
2026-08-12
DeLuca Richard R.S · Sale
Disposed
Common Stock600.0132.04
2026-08-11
2026-08-12
DeLuca Richard R.S · Sale
Disposed
Common Stock7410.0131.33
2026-08-11
2026-08-12
DeLuca Richard R.S · Sale
Disposed
Common Stock5427.0132.35
2026-08-10
2026-08-12
DeLuca Richard R.S · Sale
Disposed
Common Stock20784.0130.43
2026-08-06
2026-08-10
DeLuca Richard R.S · Sale
Disposed
Common Stock805.0131.02
2026-08-06
2026-08-10
DeLuca Richard R.S · Sale
Disposed
Common Stock300.0131.02
2026-08-06
2026-08-10
DeLuca Richard R.S · Sale
Disposed
Common Stock4945.0130.23
2026-08-06
2026-08-07
Guindo ChirfiS · Sale
Disposed
Common Stock15000.0131.0
2026-08-05
2026-08-07
Maraldo David R.M · Exercise / conversion
Acquired
Common Stock9709.087.1
2026-08-05
2026-08-07
Maraldo David R.S · Sale
Disposed
Common Stock9709.0128.72
2026-08-05
2026-08-07
Maraldo David R.S · Sale
Disposed
Common Stock2686.0128.72
2026-08-05
2026-08-07
Maraldo David R.S · Sale
Disposed
Common Stock6311.0128.72
2026-08-05
2026-08-07
Maraldo David R.M · Exercise / conversion
Acquired
Common Stock6311.073.73
2026-08-05
2026-08-07
Maraldo David R.M · Exercise / conversion
Acquired
Common Stock2686.084.71
2026-08-05
2026-08-07
Maraldo David R.M · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
6311.00.0
2026-08-05
2026-08-07
Maraldo David R.M · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
9709.00.0
2026-08-05
2026-08-07
Maraldo David R.M · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
2686.00.0
2026-08-05
2026-08-07
Williams David MichaelM · Exercise / conversion
Acquired
Common Stock34705.073.73
2026-08-05
2026-08-07
Williams David MichaelS · Sale
Disposed
Common Stock34705.0128.77
2026-08-05
2026-08-07
Williams David MichaelM · Exercise / conversion
Acquired
Common Stock13542.075.36
2026-08-05
2026-08-07
Williams David MichaelS · Sale
Disposed
Common Stock4600.0128.77
2026-08-05
2026-08-07
Williams David MichaelM · Exercise / conversion
Acquired
Common Stock4600.077.62
2026-08-05
2026-08-07
Williams David MichaelS · Sale
Disposed
Common Stock13542.0128.77
2026-08-05
2026-08-07
Williams David MichaelM · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
13542.00.0
2026-08-05
2026-08-07
Williams David MichaelM · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
4600.00.0
2026-08-05
2026-08-07
Williams David MichaelM · Exercise / conversion
Disposed
Stock Option (Right to Buy)
Derivative security
34705.00.0
2026-06-30
2026-07-01
Seidman Christine EA · Grant / award
Acquired
Phantom Stock
Derivative security
63.23128.5
2026-06-30
2026-07-01
Karsanbhai Surendralal LancaA · Grant / award
Acquired
Phantom Stock
Derivative security
126.46128.5
2026-06-30
2026-07-01
Coe Mary EllenA · Grant / award
Acquired
Phantom Stock
Derivative security
233.46128.5

Identity & relationships

Wikidata structured data · retrieved 2026-10-15 · 1663 unambiguous CIK-linked entities; coverage is incomplete

These are sourced identity and relationship claims, with incomplete coverage. Headquarters locations do not describe sales, assets or operating exposure.

SEC issuer · 0000310158Merck & Co., Inc.
Merck (Japan)MSD (Netherlands)Merck Sharp & Dohme (Switzerland)MSD Sharp & Dohme GmbHMerck Sharp & Dohme, UABMerck Sharp & Dohme Latvija, SIAMSD VACCINSMerck Sharp & Dohme B.V.MSD Norway ASMSD Czech Republic s.r.o.

Showing 10 of 10 imported Wikidata subsidiary claims. Additional aliases appear below.

No parent relationship is available in this import; this is not proof of independence.

Legal Entity Identifier
4YV9Y5M8S0BRK1RP0397
GLEIF legal name
MERCK & CO., INC.
Entity / LEI registration status
ACTIVE / ISSUED
Reference data updated
2026-09-28T13:33:16Z

direct-parent: no parent LEI supplied

ultimate-parent: no parent LEI supplied

GLEIF legal entity reference data · retrieved 2026-10-15 · 1199 checked identities; 0 unavailable records

Search names and former names

View Wikidata identity and references ↗

  • Merck & Co. · alias · wikidata
  • Merck Sharp & Dohme Corp. · alias · wikidata
  • Merck (Japan) · subsidiary · wikidata
  • MSD (Netherlands) · subsidiary · wikidata
  • Merck Sharp & Dohme (Switzerland) · subsidiary · wikidata
  • Merck Sharp & Dohme · subsidiary · wikidata
  • MSD Sharp & Dohme GmbH · subsidiary · wikidata
  • MSD (Germany) · subsidiary · wikidata
  • MSD Sharp & Dohme Gesellschaft mit beschränkter Haftung · subsidiary · wikidata
  • Merck Sharp & Dohme (Germany) · subsidiary · wikidata
  • Merck Sharp & Dohme, UAB · subsidiary · wikidata
  • MSD Lithuania · subsidiary · wikidata
  • Merck Sharp & Dohme (Lithuania) · subsidiary · wikidata
  • Merck Sharp & Dohme Latvija, SIA · subsidiary · wikidata
  • MSD (Latvia) · subsidiary · wikidata
  • Merck Sharp & Dohme (Latvia) · subsidiary · wikidata
  • MSD VACCINS · subsidiary · wikidata
  • Merck Sharp & Dohme B.V. · subsidiary · wikidata
  • MSD Norway AS · subsidiary · wikidata
  • MSD (Norge) AS · subsidiary · wikidata
  • MSD Czech Republic s.r.o. · subsidiary · wikidata
  • MSD IT Global Innovation Center s.r.o. · subsidiary · wikidata
  • MSD IT Global Innovation Center · subsidiary · wikidata
  • MSD (Czech Republic) · subsidiary · wikidata
  • Merck Sharp & Dohme Czech Republic · subsidiary · wikidata
  • Merck & Co. Inc. · former SEC name · 2009-11-04 to 2014-12-09
  • SCHERING PLOUGH CORP · former SEC name · 1994-12-29 to 2009-10-29
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Revenue in constant purchasing power

USD revenue expressed in 2026-09 consumer-price dollars. Each annual period uses a CPI-U average weighted by the days in its actual reporting interval. This is a purchasing-power comparison, not a company-specific price or volume measure.

Year endedReported USD revenueCPI-adjusted USD revenue
2024-12-31$64.17B$68.92B
2023-12-31$60.12B$66.47B
2022-12-31$59.28B$68.24B
2021-12-31$48.70B$60.55B
2020-12-31$41.52B$54.05B
2019-12-31$39.12B$51.56B
2018-12-31$42.29B$56.75B
2017-12-31$40.12B$55.15B

Bureau of Labor Statistics · retrieved 2026-10-22 · 9 selected series; gaps remain missing

Explore the CPI history ↗