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Clean Harbors Inc (CLH)
United States · Delayed Price · Currency is USD
Hazardous Waste Management
319.77+1.01 (+0.32%)
Insider Score
––Not scored
CLH Insider Score
Insiders filed in the last 90 days, but none of those trades qualified for scoring — round-trip buys and filings whose price is far off the market are excluded.
Congress Trading
Recent trades of CLH by members of U.S. Congress
| Politician | Type | Traded |
|---|---|---|
| April DelaneyHouse / D | Sale$50.00K – $100.00K | Aug 25, 2026 |
Corporate Lobbying
Government lobbying spending instances
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Source: U.S. Senate LDA
Corporate Lobbying
CLH Estimated quarterly lobbying spending
Source: U.S. Senate LDA
U.S. Patents
New CLH patent grants
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Source: USPTO Open Data Portal
Government Contracts
Estimated quarterly amount awarded to CLH from public contracts
Source: USAspending.gov
Recently reported changes in CLH holdings by institutional investors
Scanning latest 13F filings…
Latest 0 13F filings · Source: SEC EDGAR
View all institutional owners →Congressional Trades
U.S. House and Senate disclosures referencing CLH, reported under the STOCK Act.
| Politician | Chamber | Action | Amount | Date |
|---|---|---|---|---|
| House | Sell | $50.00K – $100.00K | Aug 25, 2026 |
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.