A business in context

IOSP research notebook

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

Research JSON

Filing timeline

Download filings CSV

SEC submissions · retrieved 2026-10-20 · 8029 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer

  1. 4 · Ownership change

    Report date 2026-10-01 · 0001193125-26-414699

  2. 4 · Ownership change

    Report date 2026-10-01 · 0001193125-26-414694

  3. 4 · Ownership change

    Report date 2026-10-01 · 0001193125-26-414685

  4. 4 · Ownership change

    Report date 2026-10-01 · 0001193125-26-414672

  5. 4 · Ownership change

    Report date 2026-10-01 · 0001193125-26-414650

  6. 4 · Ownership change

    Report date 2026-10-01 · 0001193125-26-414645

  7. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001193125-26-334178

  8. 8-K · Current report

    Report date 2026-08-04 · 0001193125-26-333724 · Items 2.02,9.01

  9. 8-K · Current report

    Report date 2026-06-02 · 0001193125-26-257531 · Items 5.02

  10. 8-K · Current report

    Report date 2026-05-08 · 0001193125-26-220407 · Items 5.07

  11. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001193125-26-213510

  12. 8-K · Current report

    Report date 2026-05-07 · 0001193125-26-213160 · Items 2.02,7.01,9.01

  13. DEF 14A · Proxy statement

    Report date 2026-05-08 · 0001174947-26-000427

  14. 4/A · Ownership change

    Report date 2026-02-27 · 0001193125-26-097180

  15. 4/A · Ownership change

    Report date 2026-02-27 · 0001193125-26-097170

  16. 10-K · Annual report

    Report date 2025-12-31 · 0001193125-26-056502

  17. 8-K · Current report

    Report date 2026-02-17 · 0001193125-26-055921 · Items 2.02,9.01

  18. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001193125-25-266077

  19. 8-K · Current report

    Report date 2025-11-04 · 0001193125-25-265585 · Items 2.02,7.01,9.01

  20. 8-K · Current report

    Report date 2025-08-05 · 0001193125-25-173932 · Items 2.02,9.01

  21. 10-Q · Quarterly report

    Report date 2025-06-30 · 0000950170-25-103628

  22. 8-K · Current report

    Report date 2025-05-09 · 0001193125-25-119308 · Items 5.07

  23. 8-K · Current report

    Report date 2025-05-08 · 0001193125-25-116398 · Items 2.02,7.01,9.01

  24. 10-Q · Quarterly report

    Report date 2025-03-31 · 0000950170-25-067608

  25. DEF 14A · Proxy statement

    Report date 2025-05-09 · 0001999371-25-003291

  26. 8-K · Current report

    Report date 2025-03-10 · 0001193125-25-051396 · Items 7.01,9.01

  27. 8-K · Current report

    Report date 2025-02-18 · 0001193125-25-029065 · Items 2.02,9.01

  28. 10-K · Annual report

    Report date 2024-12-31 · 0000950170-25-022803

  29. 8-K · Current report

    Report date 2024-11-05 · 0001193125-24-251643 · Items 2.02,7.01,9.01

  30. 10-Q · Quarterly report

    Report date 2024-09-30 · 0000950170-24-121901

  31. 8-K · Current report

    Report date 2024-08-06 · 0001193125-24-195351 · Items 2.02,9.01

  32. 10-Q · Quarterly report

    Report date 2024-06-30 · 0000950170-24-092351

  33. 8-K · Current report

    Report date 2024-05-16 · 0001193125-24-143279 · Items 1.01,2.03,9.01

  34. 8-K · Current report

    Report date 2024-05-10 · 0001193125-24-137665 · Items 5.07

  35. 8-K · Current report

    Report date 2024-05-09 · 0001193125-24-135679 · Items 2.02,7.01,9.01

  36. 10-Q · Quarterly report

    Report date 2024-03-31 · 0000950170-24-057487

  37. 8-K · Current report

    Report date 2024-04-03 · 0001193125-24-085374 · Items 5.02

  38. DEF 14A · Proxy statement

    Report date 2024-05-10 · 0001839882-24-009417

  39. 8-K · Current report

    Report date 2024-02-13 · 0001193125-24-034787 · Items 2.02,9.01

  40. 10-K · Annual report

    Report date 2023-12-31 · 0000950170-24-014960

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: 0 transaction rows0AExercise / conversion: 0 transaction rows0MTax / exercise payment: 0 transaction rows0FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

0 matching transaction rows.

No matching transaction rows in the covered quarter. This does not establish that no insider transactions occurred.

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 · 0001054905INNOSPEC 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
  • OCTEL CORP · former SEC name · 1998-06-09 to 2006-01-09

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$1.85B$1.98B
2023-12-31$1.95B$2.15B
2022-12-31$1.96B$2.26B
2021-12-31$1.48B$1.84B
2020-12-31$1.19B$1.55B
2019-12-31$1.51B$1.99B
2018-12-31$1.48B$1.98B
2017-12-31$1.31B$1.80B

Bureau of Labor Statistics · retrieved 2026-10-20 · 9 selected series; gaps remain missing

Explore the CPI history ↗