CLH insider trading
NYSE IndustrialsCLEAN HARBORS INC — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.
About CLEAN HARBORS INC
Clean Harbors, Inc. provides environmental and industrial services in the United States and Canada. The company operates through two segments: Environmental Services and Safety-Kleen Sustainability Solutions. The Environmental Services segment collects, transports, treats, recycles, and disposes hazardous and non-hazardous waste, such as resource recovery, physical treatment, incineration, landfill disposal, wastewater treatment, lab chemicals disposal, and explosives management services; and offers CleanPack services, including collection, identification, categorization, specialized packaging, transportation, and disposal of laboratory chemicals and household hazardous waste. This segment also provides industrial maintenance and specialty industrial services; and utilizes specialty equipment and resources that perform field services. The Safety-Kleen Sustainability Solutions segment provides containerized waste, parts-washer, and vacuum services for automobile repair shops, car and truck dealers, metal fabricators, machine manufacturers, fleet maintenance shops, and other automotive, industrial, and retail customers; collects and transports for hazardous and non-hazardous containerized waste for recycling or disposal; machine cleaning and maintenance, and disposal and replenishment of clean solvent or aqueous fluids; and vacuum services to remove solids, residual oily water, and sludge and other fluids from customers' oil/water separators, sumps, and collection tanks, as well as removes and collects waste fluids found at large and small industrial locations, including metal fabricators, auto maintenance providers, and general manufacturers. This segment also manufactures, formulates, and packages lubricants and other products. Clean Harbors, Inc. was incorporated in 1980 and is headquartered in Norwell, Massachusetts.
Company website: www.cleanharbors.com
CLH insider activity at a glance
FilingIQ has scored 1,220 insider transactions for CLH since Mar 15, 2015. The most recent filing in our index is dated May 11, 2026.
Across the full history, 9 open-market purchases
and 213 open-market sales
were filed under transaction codes P and S respectively. Compensatory share awards
(code A) and option exercises (code M) are tracked separately and not counted here.
The average FilingIQ composite score on CLH insider trades is 64.2/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.
Latest CLH Form 4 filings
Most recent disclosures. Sign up to filter by score, transaction code, or insider role.
Other Industrials tickers with recent insider activity
13F funds holding CLH
Frequently asked
- How many insider trades does FilingIQ track for CLH?
- FilingIQ tracks 1,220 Form 4 insider transactions for CLH (CLEAN HARBORS INC), covering filings from Mar 15, 2015 onwards. 31 of those were filed in the last 90 days.
- Are CLH insiders net buyers or net sellers?
- Across the full Form 4 history for CLH, 9 transactions (1%) were open-market purchases and 213 (17%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
- Where does CLH insider data come from?
- Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.
- What sector is CLH in?
- CLEAN HARBORS INC (CLH) is classified in the Industrials sector, specifically Waste Management, with a current market capitalisation of $15.08B.
Methodology & sources
Every CLH insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.