A business in context

KNF 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. 4 · Ownership change

    Report date 2026-09-30 · 0001225208-26-008063

  2. 8-K · Current report

    Report date 2026-09-23 · 0001628280-26-063145 · Items 7.01,9.01

  3. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001628280-26-052748

  4. 8-K · Current report

    Report date 2026-08-04 · 0001628280-26-052184 · Items 2.02,7.01,9.01

  5. 4 · Ownership change

    Report date 2026-06-30 · 0001225208-26-006292

  6. 8-K · Current report

    Report date 2026-05-20 · 0001628280-26-037338 · Items 5.02,5.07,9.01

  7. 4 · Ownership change

    Report date 2026-05-20 · 0001225208-26-005542

  8. 4 · Ownership change

    Report date 2026-05-20 · 0001225208-26-005541

  9. 4 · Ownership change

    Report date 2026-05-20 · 0001225208-26-005540

  10. 4 · Ownership change

    Report date 2026-05-20 · 0001225208-26-005539

  11. 4 · Ownership change

    Report date 2026-05-20 · 0001225208-26-005538

  12. 4 · Ownership change

    Report date 2026-05-20 · 0001225208-26-005537

  13. 8-K · Current report

    Report date 2026-05-15 · 0001628280-26-036006 · Items 1.01,2.03,9.01

  14. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001628280-26-030688

  15. 8-K · Current report

    Report date 2026-05-05 · 0001628280-26-030137 · Items 2.02,7.01,9.01

  16. DEF 14A · Proxy statement

    Report date 2026-05-20 · 0001628280-26-023783

  17. 10-K · Annual report

    Report date 2025-12-31 · 0001955520-26-000003

  18. 8-K · Current report

    Report date 2026-02-17 · 0001628280-26-008306 · Items 2.02,7.01,9.01

  19. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001955520-25-000069

  20. 8-K · Current report

    Report date 2025-11-04 · 0001955520-25-000065 · Items 2.02,7.01,9.01

  21. 10-Q · Quarterly report

    Report date 2025-06-30 · 0001955520-25-000060

  22. 8-K · Current report

    Report date 2025-08-05 · 0001955520-25-000057 · Items 2.02,7.01,9.01

  23. 8-K · Current report

    Report date 2025-05-22 · 0001955520-25-000043 · Items 3.03,5.03,5.07

  24. 10-Q · Quarterly report

    Report date 2025-03-31 · 0001955520-25-000034

  25. 8-K · Current report

    Report date 2025-05-06 · 0001955520-25-000031 · Items 2.02,7.01,9.01

  26. DEF 14A · Proxy statement

    Report date 2025-05-22 · 0001955520-25-000026

  27. 8-K · Current report

    Report date 2025-03-28 · 0001955520-25-000016 · Items 8.01,9.01

  28. 8-K · Current report

    Report date 2025-03-07 · 0001955520-25-000013 · Items 1.01,2.03,8.01,9.01

  29. 10-K · Annual report

    Report date 2024-12-31 · 0001955520-25-000010

  30. 8-K · Current report

    Report date 2025-02-13 · 0001955520-25-000006 · Items 2.02,7.01,9.01

  31. 8-K · Current report

    Report date 2025-01-17 · 0001955520-25-000003 · Items 5.02,9.01

  32. 8-K · Current report

    Report date 2024-12-20 · 0001955520-24-000054 · Items 1.01,9.01

  33. 10-Q · Quarterly report

    Report date 2024-09-30 · 0001955520-24-000051

  34. 8-K · Current report

    Report date 2024-11-04 · 0001955520-24-000049 · Items 2.02,7.01,9.01

  35. 8-K · Current report

    Report date 2024-08-20 · 0001955520-24-000045 · Items 5.02,9.01

  36. 10-Q · Quarterly report

    Report date 2024-06-30 · 0001955520-24-000040

  37. 8-K · Current report

    Report date 2024-08-06 · 0001955520-24-000037 · Items 2.02,7.01,9.01

  38. 8-K · Current report

    Report date 2024-06-27 · 0001955520-24-000034 · Items 5.02,7.01,9.01

  39. 8-K · Current report

    Report date 2024-05-14 · 0001955520-24-000028 · Items 5.07,9.01

  40. 10-Q · Quarterly report

    Report date 2024-03-31 · 0001955520-24-000026

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: 0 transaction rows0SGrant / award: 1 transaction rows1AExercise / conversion: 0 transaction rows0MTax / exercise payment: 0 transaction rows0FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

1 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-06-30
2026-07-01
Fagg Karen BA · Grant / award
Acquired
Phantom Stock
Derivative security
197.4889.25

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 · 0001955520Knife River Corp

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
  • Knife River Holding Co · former SEC name · 2022-12-14 to 2023-06-01

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$2.90B$3.11B
2023-12-31$2.83B$3.13B
2022-12-31$2.53B$2.92B
2021-12-31$2.23B$2.77B

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

Explore the CPI history ↗