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CLH research notebook

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

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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. 8-K · Current report

    Report date 2026-10-01 · 0000822818-26-000042 · Items 1.01,2.03,8.01,9.01

  2. 8-K · Current report

    Report date 2026-09-17 · 0000822818-26-000040 · Items 8.01,9.01

  3. 4 · Ownership change

    Report date 2026-08-14 · 0001211558-26-000020

  4. 4/A · Ownership change

    Report date 2026-07-01 · 0001663307-26-000014

  5. 4/A · Ownership change

    Report date 2026-03-13 · 0001663307-26-000012

  6. 4/A · Ownership change

    Report date 2026-02-20 · 0001663307-26-000010

  7. 4/A · Ownership change

    Report date 2026-07-01 · 0001211558-26-000018

  8. 4/A · Ownership change

    Report date 2026-03-18 · 0001211558-26-000016

  9. 4/A · Ownership change

    Report date 2026-03-13 · 0001211558-26-000014

  10. 4/A · Ownership change

    Report date 2026-02-23 · 0001211558-26-000012

  11. 8-K · Current report

    Report date 2026-08-12 · 0000822818-26-000037 · Items 8.01,9.01

  12. 10-Q · Quarterly report

    Report date 2026-06-30 · 0000822818-26-000034

  13. 8-K · Current report

    Report date 2026-07-29 · 0000822818-26-000031 · Items 2.02,9.01

  14. 8-K · Current report

    Report date 2026-05-20 · 0000822818-26-000028 · Items 5.07,9.01

  15. 8-K · Current report

    Report date 2026-05-19 · 0000822818-26-000027 · Items 5.02,7.01,9.01

  16. 8-K · Current report

    Report date 2026-05-14 · 0000822818-26-000024 · Items 8.01,9.01

  17. 10-Q · Quarterly report

    Report date 2026-03-31 · 0000822818-26-000020

  18. 8-K · Current report

    Report date 2026-05-06 · 0000822818-26-000017 · Items 2.02,9.01

  19. DEF 14A · Proxy statement

    Report date 2026-05-20 · 0000822818-26-000013

  20. 10-K · Annual report

    Report date 2025-12-31 · 0000822818-26-000009

  21. 8-K · Current report

    Report date 2026-02-18 · 0000822818-26-000004 · Items 2.02,9.01

  22. 10-Q · Quarterly report

    Report date 2025-09-30 · 0000822818-25-000040

  23. 8-K · Current report

    Report date 2025-10-29 · 0000822818-25-000038 · Items 2.02,9.01

  24. 8-K · Current report

    Report date 2025-10-09 · 0000822818-25-000036 · Items 1.01,2.03,9.01

  25. 8-K · Current report

    Report date 2025-09-25 · 0000822818-25-000034 · Items 8.01,9.01

  26. 10-Q · Quarterly report

    Report date 2025-06-30 · 0000822818-25-000030

  27. 8-K · Current report

    Report date 2025-07-30 · 0000822818-25-000028 · Items 2.02,9.01

  28. 8-K · Current report

    Report date 2025-05-21 · 0000822818-25-000023 · Items 5.07,9.01

  29. 10-Q · Quarterly report

    Report date 2025-03-31 · 0000822818-25-000019

  30. 8-K · Current report

    Report date 2025-04-30 · 0000822818-25-000017 · Items 2.02,9.01

  31. DEF 14A · Proxy statement

    Report date 2025-05-21 · 0000822818-25-000011

  32. 10-K · Annual report

    Report date 2024-12-31 · 0000822818-25-000007

  33. 8-K · Current report

    Report date 2025-02-19 · 0000822818-25-000004 · Items 2.02,9.01

  34. SC 13G/A · Ownership disclosure

    0000899140-24-001260

  35. 10-Q · Quarterly report

    Report date 2024-09-30 · 0000822818-24-000045

  36. 8-K · Current report

    Report date 2024-10-30 · 0000822818-24-000043 · Items 2.02,9.01

  37. 8-K · Current report

    Report date 2024-10-08 · 0000822818-24-000040 · Items 1.01,2.03,9.01

  38. 8-K · Current report

    Report date 2024-08-29 · 0000822818-24-000037 · Items 5.02,7.01,9.01

  39. 10-Q · Quarterly report

    Report date 2024-06-30 · 0000822818-24-000035

  40. 8-K · Current report

    Report date 2024-07-31 · 0000822818-24-000032 · Items 2.02,9.01

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: 5 transaction rows5SGrant / award: 0 transaction rows0AExercise / conversion: 0 transaction rows0MTax / exercise payment: 14 transaction rows14FGift: 0 transaction rows0G
P · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift

21 matching transaction rows.

Transaction / filedReporting ownerTypeSecuritySharesReported price
2026-08-14
2026-08-18
GERSTENBERG ERIC WS · Sale
Disposed
Common Stock2500.0321.34
2026-08-03
2026-08-03
Robertson AndreaS · Sale
Disposed
Common Stock789.0314.01
2026-07-17
2026-07-20
MCKIM ALAN SF · Tax / exercise payment
Disposed
Common Stock1265.0310.58
2026-07-01
2026-07-06
Geer Charles H. IIF · Tax / exercise payment
Disposed
Common Stock40.0290.74
2026-07-01
2026-07-06
Underwood RebeccaF · Tax / exercise payment
Disposed
Common Stock311.0290.74
2026-07-01
2026-07-06
Gabriel Sharon M.F · Tax / exercise payment
Disposed
Common Stock359.0290.74
2026-07-01
2026-08-14 · Amendment
Dugas Eric J.F · Tax / exercise payment
Disposed
Common Stock447.0290.74
2026-07-01
2026-07-06
Dugas Eric J.F · Tax / exercise payment
Disposed
Common Stock447.0290.74
2026-07-01
2026-08-12
Battles Michael LouisF · Tax / exercise payment
Disposed
Common Stock1032.0290.74
2026-07-01
2026-07-06
Weber Brian PF · Tax / exercise payment
Disposed
Common Stock814.0290.74
2026-07-01
2026-08-11
CURTIS GEORGE LF · Tax / exercise payment
Disposed
Common Stock1757.0290.74
2026-07-01
2026-08-14 · Amendment
GERSTENBERG ERIC WF · Tax / exercise payment
Disposed
Common Stock564.0290.74
2026-07-01
2026-07-06
GERSTENBERG ERIC WF · Tax / exercise payment
Disposed
Common Stock564.0290.74
2026-07-01
2026-07-06
MCKIM ALAN SF · Tax / exercise payment
Disposed
Common Stock1343.0290.74
2026-03-18
2026-08-14 · Amendment
GERSTENBERG ERIC WS · Sale
Disposed
Common Stock1000.0293.0
2026-03-13
2026-08-14 · Amendment
Dugas Eric J.F · Tax / exercise payment
Disposed
Common Stock630.0288.93
2026-03-13
2026-08-14 · Amendment
Dugas Eric J.D · Disposition to issuer
Disposed
Common Stock1324.00.0
2026-03-13
2026-08-14 · Amendment
GERSTENBERG ERIC WD · Disposition to issuer
Disposed
Common Stock2166.00.0
2026-03-13
2026-08-14 · Amendment
GERSTENBERG ERIC WF · Tax / exercise payment
Disposed
Common Stock977.0288.93
2026-02-23
2026-08-14 · Amendment
GERSTENBERG ERIC WS · Sale
Disposed
Common Stock2500.0279.86
2026-02-20
2026-08-14 · Amendment
Dugas Eric J.S · Sale
Disposed
Common Stock2788.0281.31

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 · 0000822818CLEAN HARBORS INC

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

Legal Entity Identifier
5493000SJVZVZJKHJF48
GLEIF legal name
CLEAN HARBORS, INC.
Entity / LEI registration status
ACTIVE / ISSUED
Reference data updated
2025-10-23T14:37:13Z

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 ↗

  • Clean Harbors · alias · wikidata
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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$5.89B$6.33B
2023-12-31$5.41B$5.98B
2022-12-31$5.17B$5.95B
2021-12-31$3.81B$4.73B
2020-12-31$3.14B$4.09B
2019-12-31$3.41B$4.50B
2018-12-31$3.30B$4.43B
2017-12-31$2.94B$4.05B

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

Explore the CPI history ↗