Clean Harbors

The latest read

Computed from the data on Oct 22, 2026. Every figure links back to its source in the sections below.

• Revenue over the four quarters to March 31, 2026: $6.06 billion, up 1.8% from a year earlier.SEC EDGAR filings (XBRL)
• Free cash flow (operating cash flow minus capital expenditure) over the four quarters to March 31, 2026: $0.47 billion, up 34% from a year earlier.SEC EDGAR filings (XBRL)
• Capital expenditure over the four quarters to March 31, 2026: $0.40 billion, down 2.4% from a year earlier.SEC EDGAR filings (XBRL)
• Share buybacks in the fiscal year to December 31, 2025: $0.25 billion.SEC EDGAR filings (10-K)
• Long-term debt issued in the fiscal year to December 31, 2025: $2.01 billion.SEC EDGAR filings (10-K)
• Latest earnings call or results release (July 29, 2026): sentiment 0.80 on a −1 to +1 scale (confident, opportunity-framed), confidence 0.90 of 1.Palanor Discourse
• Guidance in the last 90 days: 2 outlook figures raised, 0 lowered, 0 held.Guidance Ledger (8-K results releases)
• Latest annual report (filed February 18, 2026): 0 risk factors added, 1 removed.Risk Factor Changes (10-K Item 1A)
• Insiders were net sellers in Q3 2026: $1.1 million on the open market.SEC Form 4
• 661 institutional managers reported a position at June 30, 2026 (+36 on the quarter before).SEC Form 13F
• H-1B filings certified in Q2 2026: 5 (5 a year earlier).U.S. Department of Labor (OFLC)

Risk events (12 months): 6 — latest OSHA inspection, Sep 3, 2026 →

Company Posture covers S&P 500 companies.

No bond term sheets or tagged debt on file for Clean Harbors yet.

Charts

Live charts: each one redraws from today’s data and has an image link to paste into a document or slide.

Filings and records

The last two years of notable 8-Ks, offerings, annual reports, federal awards, lobbying reports, patents and other public records, newest first.

1. Oct 7, 2026Lobbying
   Lobbying report (SQUIRE PATTON BOGGS)third_quarter 2026 · $0.1 million
2. Oct 5, 20268-K
   Material agreement signedItem 1.01
3. Sep 3, 2026Risk event
   OSHA accident inspection: CLEAN HARBORS ENVIRONMENTAL SERVICES, INC.OSHA
4. Jul 28, 2026Patent
   Patent granted: System and Method for Classification and Management of Hazardous Waste StreamsUS 12694377
5. Jul 10, 2026Lobbying
   Lobbying report (SQUIRE PATTON BOGGS)second_quarter 2026 · $0.1 million
6. May 20, 20268-K
   Shareholder vote resultsItem 5.07
7. May 20, 20268-K
   Director or officer changeItem 5.02
8. Apr 14, 2026Lobbying
   Lobbying report (SQUIRE PATTON BOGGS)first_quarter 2026 · $0.1 million
9. Feb 23, 2026Risk event
   EPA administrative case: Clean Harbors Environmental Services Inc. RCRA 3008A AO For Comp And/Or Penalty$0.1 million
10. Feb 18, 202610-K
    Annual report (10-K)0 risk factors added, 1 removed
11. Feb 18, 2026Risk event
    OSHA complaint inspection: CLEAN HARBORS, INC.OSHA
12. Jan 29, 2026Risk event
    OSHA complaint inspection: CLEAN HARBORS ENVIRONMENTAL SERVICES, INC.OSHA
13. Jan 9, 2026Lobbying
    Lobbying report (SQUIRE PATTON BOGGS)fourth_quarter 2025 · $0.1 million
14. Dec 29, 2025Risk event
    OSHA fatality/catastrophe inspection: CLEAN HARBORS ENVIRONMENTAL SERVICES INC.OSHA
15. Nov 19, 2025Risk event
    OSHA planned inspection: CLEAN HARBORS ENVIRONMENTAL SERVICES, INC.OSHA
16. Oct 14, 2025Lobbying
    Lobbying report (SQUIRE PATTON BOGGS)third_quarter 2025 · $0.1 million
17. Oct 10, 20258-K
    Material agreement signedItem 1.01
18. Sep 29, 2025Risk event
    EPA administrative case: CLEAN HARBORS ENVIRONMENTAL SERVICES, INC$0.0 million
19. Sep 29, 2025Risk event
    OSHA referral inspection: CLEAN HARBORS ENVIRONMENTAL SERVICES, INC.OSHA
20. Jul 11, 2025Lobbying
    Lobbying report (SQUIRE PATTON BOGGS)second_quarter 2025 · $0.1 million
21. Jul 1, 2025Risk event
    OSHA complaint inspection: CLEAN HARBORS ENVIRONMENTAL SERVICES INC.OSHA
22. May 29, 2025Risk event
    OSHA complaint inspection: CLEAN HARBORS ENVIRONMENTAL SERVICES, INC.OSHA
23. May 21, 20258-K
    Shareholder vote resultsItem 5.07
24. Apr 14, 2025Lobbying
    Lobbying report (SQUIRE PATTON BOGGS)first_quarter 2025 · $0.1 million
25. Feb 19, 202510-K
    Annual report (10-K)0 risk factors added, 0 removed
26. Jan 10, 2025Lobbying
    Lobbying report (SQUIRE PATTON BOGGS)fourth_quarter 2024 · $0.1 million
27. May 14, 2024Patent
    Patent granted: Hydroblasting SystemUS 11980918
28. Feb 21, 202410-K
    Annual report (10-K)0 risk factors added, 1 removed
29. Dec 31, 2023Private credit
    Loans held by business development companies (Clean Harbors, Inc.)$1.0 million at cost

Peers

Companies in the same industry in the S&P 500, Russell 1000 or MidCap 400, closest in revenue first. Trailing twelve months, from SEC filings.

Identity

SEC CIK

822818

LEI

5493000SJVZVZJKHJF48

Wikidata

Q5130494