A business in context

KOP 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 2026-09-14 · 0001584601-26-000013

  2. 4 · Ownership change

    Report date 2026-09-14 · 0001463649-26-000006

  3. 4 · Ownership change

    Report date 2026-09-14 · 0001315257-26-000052

  4. 4 · Ownership change

    Report date 2026-09-14 · 0001245155-26-000006

  5. 4 · Ownership change

    Report date 2026-08-31 · 0001229771-26-000020

  6. 4 · Ownership change

    Report date 2026-08-19 · 0001229771-26-000018

  7. 4 · Ownership change

    Report date 2026-08-12 · 0001919175-26-000008

  8. 4 · Ownership change

    Report date 2026-08-11 · 0001450800-26-000006

  9. 10-Q · Quarterly report

    Report date 2026-06-30 · 0001315257-26-000048

  10. 8-K · Current report

    Report date 2026-08-06 · 0001315257-26-000046 · Items 2.02,9.01

  11. 8-K · Current report

    Report date 2026-05-11 · 0001315257-26-000041 · Items 5.02,7.01,9.01

  12. 10-Q · Quarterly report

    Report date 2026-03-31 · 0001315257-26-000038

  13. 8-K · Current report

    Report date 2026-05-07 · 0001315257-26-000036 · Items 2.02,2.05,5.02,5.07,7.01,9.01

  14. 8-K/A · Current report

    Report date 2025-11-05 · 0001315257-26-000030 · Items 5.02,9.01

  15. DEF 14A · Proxy statement

    Report date 2026-05-07 · 0001315257-26-000026

  16. 8-K/A · Current report

    Report date 2026-01-05 · 0001315257-26-000017 · Items 5.02,9.01

  17. 10-K · Annual report

    Report date 2025-12-31 · 0001315257-26-000012

  18. 8-K · Current report

    Report date 2026-02-26 · 0001315257-26-000010 · Items 2.02,9.01

  19. 8-K · Current report

    Report date 2026-01-05 · 0001315257-26-000004 · Items 5.02,8.01,9.01

  20. 8-K/A · Current report

    Report date 2024-11-08 · 0001315257-25-000014 · Items 2.05

  21. 10-Q · Quarterly report

    Report date 2025-09-30 · 0001315257-25-000012

  22. 8-K · Current report

    Report date 2025-11-07 · 0001315257-25-000010 · Items 2.02,9.01

  23. 8-K · Current report

    Report date 2025-11-05 · 0001315257-25-000006 · Items 5.02,9.01

  24. 10-Q · Quarterly report

    Report date 2025-06-30 · 0000950170-25-105595

  25. 8-K · Current report

    Report date 2025-08-08 · 0000950170-25-105486 · Items 2.02,9.01

  26. 8-K · Current report

    Report date 2025-06-17 · 0000950170-25-087681 · Items 1.01,2.03,9.01

  27. 8-K · Current report

    Report date 2025-05-22 · 0000950170-25-078597 · Items 5.02,8.01,9.01

  28. 10-Q · Quarterly report

    Report date 2025-03-31 · 0000950170-25-067733

  29. 8-K · Current report

    Report date 2025-05-08 · 0000950170-25-067521 · Items 2.02,5.02,5.07,9.01

  30. DEF 14A · Proxy statement

    Report date 2025-05-08 · 0000950170-25-046841

  31. 10-K · Annual report

    Report date 2024-12-31 · 0000950170-25-028542

  32. 8-K · Current report

    Report date 2025-02-27 · 0000950170-25-028398 · Items 2.02,9.01

  33. 8-K · Current report

    Report date 2024-12-17 · 0001193125-24-280510 · Items 1.01,2.03,9.01

  34. 8-K · Current report

    Report date 2024-12-05 · 0000950170-24-134339 · Items 5.02

  35. 8-K · Current report

    Report date 2024-12-05 · 0000950170-24-133737 · Items 2.05,9.01

  36. SC 13G/A · Ownership disclosure

    0002012383-24-004028

  37. 10-Q · Quarterly report

    Report date 2024-09-30 · 0000950170-24-123804

  38. 8-K · Current report

    Report date 2024-11-08 · 0000950170-24-123708 · Items 2.02,2.05,9.01

  39. SC 13G/A · Ownership disclosure

    0002012383-24-000633

  40. SC 13G/A · Ownership disclosure

    0001082327-24-000071

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: 7 transaction rows7SGrant / award: 4 transaction rows4AExercise / conversion: 0 transaction rows0MTax / exercise payment: 0 transaction rows0FGift: 1 transaction rows1G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

12 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-09-14
2026-09-15
MOTLEY DAVID LA · Grant / award
Acquired
Dividend Equivalent Rights
Derivative security
19.980.0
2026-09-14
2026-09-15
Feng XudongA · Grant / award
Acquired
Dividend Equivalent Rights
Derivative security
32.950.0
2026-09-14
2026-09-15
Sandifer Andrew DA · Grant / award
Acquired
Dividend Equivalent Rights
Derivative security
13.520.0
2026-09-14
2026-09-15
WILKERSON SONJA MICHELLEA · Grant / award
Acquired
Dividend Equivalent Rights
Derivative security
29.350.0
2026-08-31
2026-09-01
BALL M LEROYS · Sale
Disposed
Common Stock4000.045.96
2026-08-31
2026-09-01
BALL M LEROYG · Gift
Disposed
Common Stock200.00.0
2026-08-19
2026-08-20
BALL M LEROYS · Sale
Disposed
Common Stock3000.045.84
2026-08-12
2026-08-13
Lucas Stephen GS · Sale
Disposed
Common Stock1308.044.55
2026-08-11
2026-08-12
Sullivan James A.S · Sale
Disposed
Common Stock7500.050.0
2026-08-10
2026-08-11
Pearce Bradley AS · Sale
Disposed
Common Stock2000.051.01
2026-08-07
2026-08-11
Sullivan James A.S · Sale
Disposed
Common Stock79900.050.01
2026-08-07
2026-08-11
Sullivan James A.S · Sale
Disposed
Common Stock100.051.22

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 · 0001315257Koppers Holdings 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
  • KI Holdings Inc. · former SEC name · 2005-02-14 to 2005-11-14

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$2.09B$2.25B
2023-12-31$2.15B$2.38B
2022-12-31$1.98B$2.28B
2021-12-31$1.68B$2.09B
2020-12-31$1.67B$2.17B
2019-12-31$1.64B$2.16B
2018-12-31$1.56B$2.10B
2017-12-31$1.48B$2.03B

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

Explore the CPI history ↗