CLEAN HARBORS INC (CLH) Stock
CLH has an Alpha Score of 40 out of 100 (weak), computed on Oct 31, 2026 from 3 of 4 sub-scores. 2 members of Congress disclosed 13 trades in CLH since 2025: 2 purchases and 11 sales, most recently April McClain Delaney (sale, Aug 25, 2026). 6 of the hedge funds AlphaScala tracks reported CLH in 13F filings for the quarter ended Jun 30, 2026; the largest reported position is Citadel's at $93.91M. Company insiders reported 1 open-market buy and 1 sale on SEC Form 4 in the 90 days to Nov 6, 2026. Its trailing P/E ratio is 33.4 and its net margin 7.0% (key statistics as of Nov 7, 2026).
What is CLH's Alpha Score?
How it works →Alpha Score of 40 reflects weak overall profile with moderate momentum, poor value, weak quality. Based on 3 of 4 signals – score is capped at 90 until remaining data ingests.
Computed from 3 of 4 sub-scores; a sub-score is left out when its inputs are missing, and the composite is capped accordingly.
Computed Oct 31, 2026
A rules-based research rating, not a recommendation to buy or sell.
Which members of Congress traded CLEAN HARBORS INC (CLH)?
Most recent: April McClain Delaney (sale, Aug 25, 2026); records start Jan 13, 2025.
| Politician | Trade date | Type | Amount |
|---|---|---|---|
| April McClain Delaney D-MD · House | 2026-08-25 | sale | $50k – $100k |
| April McClain Delaney D-MD · House | 2026-07-28 | partial sale | $1k – $15k |
| April McClain Delaney D-MD · House | 2026-07-27 | partial sale | $1k – $15k |
| April McClain Delaney D-MD · House | 2026-07-24 | partial sale | $1k – $15k |
| April McClain Delaney D-MD · House | 2026-05-01 | partial sale | $1k – $15k |
| April McClain Delaney D-MD · House | 2026-04-30 | partial sale | $1k – $15k |
| April McClain Delaney D-MD · House | 2026-02-23 | purchase | $15k – $50k |
| April McClain Delaney D-MD · House | 2025-12-03 | purchase | $1k – $15k |
From STOCK Act periodic transaction reports. House filings as of Nov 5, 2026.
See all CLH political trades →Which hedge funds own CLH?
From 13F filings| Fund | Shares Held | Position Value | Change vs prior Q |
|---|---|---|---|
| Citadel Ken Griffin | 314K | $93.91M | +803% |
| Point72 Steve Cohen | 105K | $31.40M | +86% |
| Renaissance Technologies Jim Simons (founder) | 82K | $24.56M | NEW |
| D.E. Shaw David Shaw | 17K | $5.02M | -54% |
| Marshall Wace | 9K | $2.59M | -81% |
| Blackstone | 1K | $403.9K | NEW |
13F holdings as of Jun 30, 2026
Explore all tracked funds →Are CLEAN HARBORS INC insiders buying or selling?
SEC Form 4 filings| Date | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| Oct 29, 26 | Polito Karyn | Director | BUY | 125 | $39K |
| Aug 14, 26 | Gerstenberg Eric W | CO-CEO | SELL | 2.5K | $803K |
| Aug 3, 26 | Robertson Andrea | Director | SELL | 789 | $248K |
| Mar 18, 26 | Gerstenberg Eric W | CO-CEO | SELL | 1.0K | $293K |
| Feb 23, 26 | Gerstenberg Eric W | CO-CEO | SELL | 2.5K | $700K |
| Feb 20, 26 | Dugas Eric J. | EVP CHIEF FINANCIAL OFFICER | SELL | 2.8K | $784K |
SEC Form 4 filings as of Nov 6, 2026
See cluster-buy signals across all tickers →What are CLH's key statistics?
Key statistics as of Nov 7, 2026
How does CLH's valuation compare with the Industrials sector?
| Metric | CLH | Industrials median | Companies in median |
|---|---|---|---|
| P/E ratio | 33.4 | 27.8 | 187 |
| Net margin | 7.03% | 8.17% | 210 |
| Return on equity | 15.64% | 15.27% | 210 |
Medians over the Industrials stocks whose key statistics were refreshed in the last 35 days (newest Nov 8, 2026). P/E excludes loss-making companies.
CLH price chart
Powered by TradingViewWhat does CLEAN HARBORS INC do?
Clean Harbors Inc. is a leading provider of environmental and industrial services throughout North America. The company primarily focuses on hazardous waste management, offering a comprehensive range of services including the collection, transportation, treatment, recycling, and disposal of hazardous materials. Clean Harbors operates one of the largest networks of hazardous waste disposal facilities and service centers across the continent, emphasizing its commitment to environmental responsibility and sustainability. In addition to waste management, the company is a key player in emergency spill response, industrial cleaning, and field services, catering to a diverse array of sectors such as chemical, manufacturing, and energy industries. Established in 1980 and headquartered in Norwell, Massachusetts, Clean Harbors plays a crucial role in ensuring regulatory compliance and environmental safety for a wide range of clients, supporting their efforts in reducing ecological footprints and enhancing sustainable operations.