A business in context

COLB 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 2026-09-30 · 0000887343-26-000181 · Items 7.01,9.01

  2. 4 · Ownership change

    Report date 2026-09-14 · 0000887343-26-000178

  3. 4 · Ownership change

    Report date 2026-09-04 · 0001267342-26-000003

  4. 4 · Ownership change

    Report date 2026-09-02 · 0001084960-26-000007

  5. 4 · Ownership change

    Report date 2026-08-14 · 0000887343-26-000174

  6. 8-K · Current report

    Report date 2026-08-14 · 0000887343-26-000173 · Items 8.01,9.01

  7. 10-Q · Quarterly report

    Report date 2026-06-30 · 0000887343-26-000170

  8. 8-K · Current report

    Report date 2026-07-28 · 0000887343-26-000167 · Items 5.02,7.01,9.01

  9. 8-K · Current report

    Report date 2026-07-23 · 0000887343-26-000165 · Items 2.02,7.01,9.01

  10. 4 · Ownership change

    Report date 2026-06-30 · 0000887343-26-000161

  11. 8-K · Current report

    Report date 2026-06-30 · 0000887343-26-000159 · Items 7.01,9.01

  12. 4 · Ownership change

    Report date 2026-06-15 · 0001133099-26-000010

  13. 4 · Ownership change

    Report date 2026-06-08 · 0001798077-26-000005

  14. 4 · Ownership change

    Report date 2026-05-14 · 0001713258-26-000002

  15. 8-K · Current report

    Report date 2026-05-15 · 0000887343-26-000143 · Items 8.01,9.01

  16. 8-K · Current report

    Report date 2026-05-14 · 0000887343-26-000142 · Items 5.07

  17. 10-Q · Quarterly report

    Report date 2026-03-31 · 0000887343-26-000135

  18. 8-K · Current report

    Report date 2026-04-23 · 0000887343-26-000132 · Items 2.02,7.01,9.01

  19. DEF 14A · Proxy statement

    Report date 2026-05-14 · 0000887343-26-000126

  20. 8-K · Current report

    Report date 2026-03-31 · 0000887343-26-000116 · Items 7.01,9.01

  21. 10-K · Annual report

    Report date 2025-12-31 · 0000887343-26-000088

  22. 8-K · Current report

    Report date 2026-02-13 · 0000887343-26-000039 · Items 8.01,9.01

  23. 8-K · Current report

    Report date 2026-01-22 · 0000887343-26-000012 · Items 2.02,7.01,9.01

  24. 8-K · Current report

    Report date 2025-12-31 · 0000887343-25-000280 · Items 7.01,9.01

  25. 8-K · Current report

    Report date 2025-11-19 · 0001193125-25-290691 · Items 5.02

  26. 8-K · Current report

    Report date 2025-11-14 · 0000887343-25-000271 · Items 8.01,9.01

  27. 10-Q · Quarterly report

    Report date 2025-09-30 · 0000887343-25-000268

  28. 8-K · Current report

    Report date 2025-10-29 · 0001193125-25-264630 · Items 5.02,7.01,9.01

  29. 8-K · Current report

    Report date 2025-10-30 · 0000887343-25-000262 · Items 2.02,7.01,9.01

  30. 8-K/A · Current report

    Report date 2025-09-02 · 0000887343-25-000242 · Items 9.01

  31. 8-K · Current report

    Report date 2025-09-02 · 0001193125-25-193405 · Items 2.01,5.02,7.01,9.01

  32. 8-K · Current report

    Report date 2025-08-29 · 0000887343-25-000238 · Items 7.01,9.01

  33. 8-K · Current report

    Report date 2025-08-15 · 0000887343-25-000236 · Items 8.01,9.01

  34. 10-Q · Quarterly report

    Report date 2025-06-30 · 0000887343-25-000233

  35. 8-K · Current report

    Report date 2025-08-06 · 0000887343-25-000229 · Items 7.01,8.01,9.01

  36. 8-K · Current report

    Report date 2025-07-24 · 0000887343-25-000221 · Items 2.02,7.01,9.01

  37. 8-K · Current report

    Report date 2025-07-21 · 0000887343-25-000212 · Items 5.07,7.01,9.01

  38. 8-K · Current report

    Report date 2025-07-11 · 0001193125-25-158231 · Items 8.01

  39. 8-K · Current report

    Report date 2025-06-30 · 0000887343-25-000208 · Items 7.01,9.01

  40. 8-K · Current report

    Report date 2025-05-16 · 0000887343-25-000172 · Items 8.01,9.01

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: 1 transaction rows1PSale: 0 transaction rows0SGrant / award: 3 transaction rows3AExercise / conversion: 2 transaction rows2MTax / exercise payment: 1 transaction rows1FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

7 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-09-14
2026-09-15
MACHUCA LUISA · Grant / award
Acquired
Deferred Compensation Phantom Stock
Derivative security
594.030.48
2026-09-04
2026-09-08
GARDNER STEVEN RA · Grant / award
Acquired
Common Stock2577.00.0
2026-09-02
2026-09-04
LAGOMARSINO SIMONEA · Grant / award
Acquired
Common Stock2670.00.0
2026-08-14
2026-08-18
Giem JudiM · Exercise / conversion
Acquired
Common Stock2393.032.69
2026-08-14
2026-08-18
Giem JudiF · Tax / exercise payment
Disposed
Common Stock643.032.69
2026-08-14
2026-08-18
Giem JudiM · Exercise / conversion
Disposed
Restricted Stock Unit
Derivative security
2393.0n/a
2026-06-30
2026-07-02
Deer Aaron JamesP · Purchase
Acquired
Common Stock886.025.37

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 · 0000887343COLUMBIA BANKING SYSTEM, INC.

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

No verified LEI join available.

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

Search names and former names
  • COLUMBIA BANKING SYSTEM INC · former SEC name · 1996-08-13 to 2019-05-03

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$149.00M$160.04M
2023-12-31$134.00M$148.17M
2022-12-31$85.83M$98.80M
2021-12-31$83.31M$103.58M

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

Explore the CPI history ↗