Clean Harbors, Inc. (CLH)
What changed in recent filings
- Revenue +12% YoYQuarter ended Jun 30, 2026
- Institutions — 2 new · 1 added · 1 reduced13F · as of end of 2026 Q2
What changed in recent SEC filings — factual, not a buy/sell recommendation.
Clean Harbors, Inc. recent earnings releases
Based on SEC filings. The release date is the day the earnings filing (8-K) was accepted; for quarters where that filing was not found, the periodic report filing date is shown.
- 26Q2Released Jul 29, 2026Revenue +11.9% YoY · EPS $3.22Released before the open: Jul 28 close → Jul 29 close, the stock moved +7.5% · over the same window, market -1.5% · sector -2.9%
- 26Q1Released May 6, 2026Revenue +1.9% YoY · EPS $1.19Released before the open: May 5 close → May 6 close, the stock moved -8.2% · over the same window, market +1.4% · sector +2.7%
- 25Q4Released Feb 18, 2026Revenue +4.8% YoY · EPS $1.63Released before the open: Feb 17 close → Feb 18 close, the stock moved +2.7% · over the same window, market +0.5% · sector -0.6%
- 25Q3Released Oct 29, 2025Revenue +1.3% YoY · EPS $2.21Released before the open: Oct 28 close → Oct 29 close, the stock moved -11.5% · over the same window, market +0.0% · sector +0.3%
The next earnings release is estimated around Oct 28, 2026 (calculated from how long this company has taken between quarter end and filing; it is not a date announced by the company).
Institutions holding Clean Harbors, Inc.
How many of the institutions we track reported holding this stock, quarter by quarter.
2019 Q1: 1 → 2026 Q2: 4 institutions
Counts the 52 institutions we track that reported holding this stock — their full reported holdings, not just the largest positions. Not the total number of institutional holders in the US. Figures are as of quarter-end and disclosed up to 45 days later. Descriptive only — not investment advice.
Which institutions hold Clean Harbors, Inc.
Institutions we track that reported holding this stock in their most recent 13F.
- Durable Capital Partners2.59% of portfolio · since 2025 Q3
- Point72 Asset Management0.03% of portfolio · since 2025 Q4
- Tudor Investment CorpNew this quarter0.01% of portfolio · since 2026 Q2
- BlackstoneNew this quarterunder 0.01% of portfolio · since 2026 Q2
Based on 13F filings — quarter-end holdings, disclosed up to 45 days later. Holding a stock is a fact we report, not a recommendation to buy or sell.
Q2 2026 13F recap — stocks several institutions bought and sold together →Company overview
Clean Harbors, Inc. is a leading environmental and industrial services company based in Norwell, Massachusetts. Clean Harbors provides hazardous and non-hazardous waste collection, transportation, treatment, recycling, and disposal services, along with emergency spill response, industrial cleaning, maintenance, and field services. Through its Safety-Kleen Sustainability Solutions segment, the company also offers parts cleaning and related environmental services to commercial, industrial, and automotive customers, as well as used-oil re-refining and recycling services. Its customer base spans manufacturing, chemical, refining, automotive, utilities, government, and other industrial sectors across North America. Clean Harbors plays a central role in helping organizations manage regulated waste streams, support operational safety, and meet environmental compliance requirements through a broad network of specialized facilities and service locations.
What is the Industrials sector?
Heavy equipment and automation. Tied to reshoring and infrastructure spending.
Clean Harbors, Inc. is classified under the Industrials sector. See peers below.
Clean Harbors, Inc. key financials
Based on SEC filings · as of Jun 30, 2026
Tap a metric name to see its meaning in the glossary.
Clean Harbors, Inc. vs Industrials sector benchmark
Median of 25 representative sector stocks · SEC filings · factual comparison (not advice)
A simple comparison to the sector benchmark. Higher or lower doesn’t mean good/bad or buy/sell.
CLH revenue by segment summary
SEC 10-Q · segment totals cross-checked against total revenue
2026-06-30 revenue was $1.7B, +11.9% YoY.
The largest segment is Environmental Services, 84.0% of revenue — a highly concentrated structure.
Recent revenue growth was led mainly by the Environmental Services segment (about 56% of the increase).
Full segment weights, YoY changes, and an AI synthesis are available in the detailed analysis.
ETFs holding Clean Harbors, Inc.
Per SEC N-PORT · 2026-06-30 · by weight · factual
CLH on Stocklore
- Revenue by segment — segment weights verified from SEC filings, YoY changes, growth drivers and concentration
- Financials & earnings quality — 6 metrics (FCF conversion, ROIC, net debt, etc.) to gauge profit quality
- 13F institutional holdings — holdings and weight changes of major institutions (45-day delay)
- Sector-relative metrics — Valuation and growth compared with the Industrials average
Peers · Industrials
CLH FAQ
What is Clean Harbors, Inc. (CLH)?
Clean Harbors, Inc. is a leading environmental and industrial services company based in Norwell, Massachusetts. Clean Harbors provides hazardous and non-hazardous waste collection, transportation, treatment, recycling, and disposal services, along with emergency spill response, industrial cleaning, maintenance, and field services. Through its Safety-Kleen Sustainability Solutions segment, the company also offers parts cleaning and related environmental services to commercial, industrial, and automotive customers, as well as used-oil re-refining and recycling services. Its customer base spans manufacturing, chemical, refining, automotive, utilities, government, and other industrial sectors across North America. Clean Harbors plays a central role in helping organizations manage regulated waste streams, support operational safety, and meet environmental compliance requirements through a broad network of specialized facilities and service locations.
What sector is Clean Harbors, Inc. in?
Clean Harbors, Inc. is classified under Industrials. Heavy equipment and automation. Tied to reshoring and infrastructure spending.
What are Clean Harbors, Inc.'s key financials?
As of Jun 30, 2026 in SEC filings: Revenue growth (YoY) 5.1%, Operating margin 15.5%, Net margin 7.0%, ROE 14.2%, Debt-to-equity 0.94x. Definitions and interpretation are available on Stocklore.
What are Clean Harbors, Inc.'s main revenue segments?
The largest segment is Environmental Services, about 84.0% of revenue. Segment totals are cross-checked against total revenue from SEC filings.
Where can I analyze Clean Harbors, Inc. (CLH) stock?
On Stocklore you can see CLH's financials & earnings quality, 13F institutional holdings, and sector-relative metrics in one place. This page is for information and tools — not a buy/sell recommendation.
Data sources: SEC EDGAR (financials & filings), 13F (institutional holdings, as of quarter-end), market data. This page is for information and analysis tools — it does not recommend buying or selling any security. Investment decisions and responsibility are your own.