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AJG research notebook

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Filing timeline

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SEC submissions · retrieved 2026-10-23 · 8022 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 4 · Ownership change

    Report date 2026-09-15 · 0000354190-26-000209

  2. 4 · Ownership change

    Report date 2026-09-08 · 0000354190-26-000207

  3. 4 · Ownership change

    Report date 2026-09-08 · 0000354190-26-000205

  4. 4 · Ownership change

    Report date 2026-09-02 · 0000354190-26-000203

  5. 4 · Ownership change

    Report date 2026-09-01 · 0000354190-26-000201

  6. 8-K · Current report

    Report date 2026-08-24 · 0000354190-26-000197 · Items 5.02

  7. 4 · Ownership change

    Report date 2026-08-24 · 0000354190-26-000199

  8. 4 · Ownership change

    Report date 2026-08-19 · 0000354190-26-000195

  9. 4 · Ownership change

    Report date 2026-08-16 · 0000354190-26-000193

  10. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001628280-26-053489

  11. 8-K · Current report

    Report date 2026-07-30 · 0001628280-26-051070 · Items 2.02,7.01

  12. 8-K · Current report

    Report date 2026-07-22 · 0000354190-26-000184 · Items 8.01

  13. 8-K · Current report

    Report date 2026-06-17 · 0000354190-26-000171 · Items 7.01

  14. 8-K · Current report

    Report date 2026-05-12 · 0000354190-26-000142 · Items 5.07

  15. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001628280-26-031592

  16. 8-K · Current report

    Report date 2026-04-30 · 0000354190-26-000132 · Items 2.02,7.01,9.01

  17. DEF 14A · Proxy statement

    Report date 2026-05-12 · 0000354190-26-000101

  18. 8-K · Current report

    Report date 2026-03-17 · 0000354190-26-000073 · Items 7.01

  19. 8-K · Current report

    Report date 2026-03-06 · 0000354190-26-000069 · Items 5.02

  20. 10-K · Annual report

    Report date 2025-12-31 · 0001628280-26-008662

  21. 8-K · Current report

    Report date 2026-01-29 · 0001193125-26-029407 · Items 2.02,7.01,9.01

  22. 8-K · Current report

    Report date 2025-12-16 · 0000354190-25-000054 · Items 7.01

  23. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001628280-25-050734

  24. 8-K · Current report

    Report date 2025-10-30 · 0001193125-25-258781 · Items 2.02,7.01,9.01

  25. 8-K/A · Current report

    Report date 2025-08-18 · 0001628280-25-046542 · Items 9.01

  26. 8-K · Current report

    Report date 2025-09-18 · 0000354190-25-000037 · Items 7.01

  27. 8-K · Current report

    Report date 2025-08-18 · 0000354190-25-000019 · Items 2.01,7.01,9.01

  28. 10-Q · Quarterly report

    Report date 2025-06-30 · 0000354190-25-000011

  29. 8-K · Current report

    Report date 2025-07-31 · 0001193125-25-170602 · Items 2.02,7.01,9.01

  30. 8-K · Current report

    Report date 2025-06-04 · 0001193125-25-134909 · Items 7.01

  31. 8-K · Current report

    Report date 2025-05-13 · 0001193125-25-119833 · Items 5.07

  32. 10-Q · Quarterly report

    Report date 2025-03-31 · 0000950170-25-062859

  33. 8-K · Current report

    Report date 2025-05-01 · 0001193125-25-110014 · Items 2.02,7.01,9.01

  34. 8-K · Current report

    Report date 2025-04-03 · 0001193125-25-073495 · Items 1.01,2.03,9.01

  35. DEF 14A · Proxy statement

    Report date 2025-03-24 · 0000950170-25-043725

  36. 8-K · Current report

    Report date 2025-03-20 · 0001193125-25-058392 · Items 7.01

  37. 10-K · Annual report

    Report date 2024-12-31 · 0000950170-25-021775

  38. 8-K · Current report

    Report date 2025-01-29 · 0001193125-25-017328 · Items 2.02,5.03,7.01,9.01

  39. 8-K · Current report

    Report date 2024-12-19 · 0001193125-24-282109 · Items 8.01,9.01

  40. 8-K · Current report

    Report date 2024-12-09 · 0001193125-24-275765 · Items 8.01,9.01

Reported insider transactions

Download transactions CSV

SEC insider transactions · retrieved 2026-10-23 · 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: 4 transaction rows4SGrant / award: 1 transaction rows1AExercise / conversion: 12 transaction rows12MTax / exercise payment: 1 transaction rows1FGift: 3 transaction rows3G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

21 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-09-15
2026-09-17
CARY RICHARD CS · Sale
Disposed
Common Stock1000.0252.86
2026-09-08
2026-09-10
Gallagher Patrick MurphyG · Gift
Acquired
Common Stock49988.00.0
2026-09-08
2026-09-10
GALLAGHER J PATRICK JRG · Gift
Disposed
Common Stock49988.00.0
2026-09-02
2026-09-04
Hudson Scott RS · Sale
Disposed
Common Stock12000.0264.13
2026-09-02
2026-09-04
Hudson Scott RM · Exercise / conversion
Acquired
Common Stock12000.086.17
2026-09-02
2026-09-04
Hudson Scott RM · Exercise / conversion
Disposed
Non-qualified Stock Option
Derivative security
12000.00.0
2026-09-01
2026-09-02
Miskel Christopher C.A · Grant / award
Acquired
Common Stock152.67262.0
2026-08-24
2026-08-26
Bay Walter D.S · Sale
Disposed
Common Stock12000.0270.08
2026-08-19
2026-08-20
Mead Christopher EM · Exercise / conversion
Acquired
Common Stock3500.086.17
2026-08-19
2026-08-20
Mead Christopher ES · Sale
Disposed
Common Stock3500.0257.03
2026-08-19
2026-08-20
Mead Christopher EM · Exercise / conversion
Disposed
Non-qualified Stock Option
Derivative security
3500.00.0
2026-08-16
2026-08-18
Bloom Mark H.F · Tax / exercise payment
Disposed
Common Stock606.81251.21
2026-08-16
2026-08-18
Bloom Mark H.M · Exercise / conversion
Acquired
Common Stock1280.490.0
2026-08-16
2026-08-18
Bloom Mark H.M · Exercise / conversion
Disposed
Phantom Stock
Derivative security
1280.490.0
2026-08-05
2026-08-07
Gallagher Patrick MurphyG · Gift
Disposed
Common Stock23800.00.0
2026-07-01
2026-07-06
Jain VishalM · Exercise / conversion
Acquired
Common Stock2162.69229.57
2026-07-01
2026-07-06
Jain VishalM · Exercise / conversion
Disposed
Notional Stock Units
Derivative security
2162.690.0
2026-07-01
2026-07-06
GALLAGHER THOMAS JOSEPHM · Exercise / conversion
Acquired
Common Stock351.95229.57
2026-07-01
2026-07-06
GALLAGHER THOMAS JOSEPHM · Exercise / conversion
Disposed
Notional Stock Units
Derivative security
351.950.0
2026-07-01
2026-07-06
Pesch Michael RobertM · Exercise / conversion
Acquired
Common Stock355.8229.57
2026-07-01
2026-07-06
Pesch Michael RobertM · Exercise / conversion
Disposed
Notional Stock Units
Derivative security
355.80.0

Identity & relationships

Wikidata structured data · retrieved 2026-10-23 · 1658 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 · 0000354190Arthur J. Gallagher & Co.

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

Legal Entity Identifier
54930049QLLMPART6V29
GLEIF legal name
ARTHUR J. GALLAGHER & CO.
Entity / LEI registration status
ACTIVE / ISSUED
Reference data updated
2026-10-16T06:27:44Z

direct-parent: no parent LEI supplied

ultimate-parent: no parent LEI supplied

GLEIF legal entity reference data · retrieved 2026-10-23 · 1197 checked identities; 0 unavailable records

Search names and former names

View Wikidata identity and references ↗

  • Gallagher & Co · alias · wikidata
  • Gallagher Insurance · alias · wikidata
  • AJ Gallagher · alias · wikidata
  • GALLAGHER ARTHUR J & CO · former SEC name · 1994-01-25 to 2019-08-14
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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$11.55B$12.41B
2023-12-31$10.07B$11.14B
2022-12-31$8.55B$9.84B
2021-12-31$8.21B$10.21B
2020-12-31$7.00B$9.12B
2019-12-31$7.20B$9.48B
2018-12-31$6.93B$9.30B
2017-12-31$6.25B$8.59B

Bureau of Labor Statistics · retrieved 2026-10-23 · 9 selected series; gaps remain missing

Explore the CPI history ↗