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Clean Harbors, Inc. (CLH)

Clean Harbors, Inc. at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

Clean Harbors, Inc. (CLH) is a Waste Management company based in US with a market capitalization of $14.9B. Revenue grew 2.4% year-over-year and the company generated $441.8M in free cash flow. This page tracks CLH's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 22.8K employees · IPO Nov 24, 1987

Valuation

Valuation & price

$303.76 · as of May 17, 2026 · -3.2% vs 52w high

41.5

P/E ratio

Latest-FY diluted EPS

5.41

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$313$259$205Jul 25Dec 25Jul 26Jul 7, 25$234.71Jul 9, 25$230.49Jul 11, 25$232.88Jul 15, 25$228.75Jul 17, 25$228.85Jul 21, 25$225.84Jul 23, 25$229.92Jul 25, 25$235.21Jul 29, 25$238.29Jul 31, 25$235.81Aug 4, 25$236.43Aug 6, 25$242.40Aug 11, 25$238.03Aug 13, 25$250.43Aug 15, 25$243.13Aug 19, 25$245.04Aug 21, 25$244.56Aug 25, 25$244.31Aug 27, 25$245.61Aug 29, 25$242.21Sep 3, 25$240.94Sep 5, 25$236.25Sep 9, 25$236.50Sep 11, 25$238.50Sep 16, 25$235.41Sep 18, 25$237.14Sep 22, 25$236.99Sep 24, 25$233.01Sep 26, 25$231.95Sep 30, 25$232.22Oct 2, 25$227.37Oct 6, 25$232.28Oct 8, 25$235.50Oct 10, 25$233.95Oct 14, 25$235.99Oct 16, 25$232.10Oct 21, 25$239.44Oct 23, 25$243.59Oct 27, 25$242.22Oct 29, 25$217.92Oct 31, 25$210.51Nov 4, 25$208.79Nov 6, 25$205.12Nov 10, 25$207.02Nov 12, 25$207.90Nov 14, 25$205.85Nov 18, 25$209.28Nov 20, 25$209.12Nov 25, 25$223.86Nov 28, 25$227.56Dec 2, 25$239.55Dec 4, 25$236.36Dec 8, 25$238.99Dec 10, 25$238.79Dec 12, 25$241.84Dec 16, 25$240.02Dec 18, 25$238.73Dec 22, 25$239.00Dec 24, 25$240.19Dec 29, 25$240.21Jan 2, 26$243.44Jan 6, 26$244.91Jan 8, 26$247.49Jan 12, 26$255.59Jan 14, 26$259.00Jan 16, 26$264.08Jan 21, 26$261.54Jan 23, 26$259.51Jan 27, 26$260.55Jan 29, 26$258.16Feb 2, 26$261.38Feb 4, 26$260.95Feb 9, 26$267.62Feb 11, 26$274.60Feb 13, 26$273.82Feb 18, 26$276.25Feb 20, 26$284.69Feb 24, 26$284.66Feb 26, 26$292.53Mar 2, 26$297.02Mar 4, 26$293.00Mar 6, 26$282.97Mar 10, 26$286.03Mar 12, 26$289.41Mar 17, 26$290.55Mar 19, 26$289.46Mar 23, 26$286.10Mar 25, 26$288.29Mar 27, 26$279.00Mar 31, 26$286.73Apr 2, 26$297.00Apr 7, 26$298.86Apr 9, 26$302.16Apr 13, 26$303.60Apr 15, 26$296.00Apr 17, 26$300.70Apr 22, 26$304.40Apr 24, 26$308.99Apr 28, 26$306.20Apr 30, 26$312.68May 4, 26$310.44May 6, 26$287.98May 8, 26$291.15May 12, 26$296.39May 14, 26$308.40May 18, 26$301.71May 20, 26$291.40May 22, 26$286.92May 28, 26$280.71Jun 1, 26$281.00Jun 3, 26$286.63Jun 5, 26$283.03Jun 9, 26$287.99Jun 11, 26$286.78Jun 15, 26$284.03Jun 17, 26$287.25Jun 22, 26$289.36Jun 24, 26$298.78Jun 26, 26$301.65Jul 2, 26$291.20
$201.7352-week range$313.70
Loading valuation history…

Fundamentals

Key fundamentals

$14.9B

Market cap

2.4%

Revenue growth (YoY)

29.5%

Gross margin

$441.8M

Free cash flow (USD)

$2.5B

Net debt

-1.3%

Share dilution

2/5

Graham criteria passed

Defensive-investor screen

Industrials

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$2.8BFY 2017$2.9BFY 2018$3.3BFY 2019$3.4BFY 2020$3.1BFY 2021$3.8BFY 2022$5.2BFY 2023$5.4BFY 2024$5.9BFY 2025$6.0B
$2.8B$6B

Free cash flow by year

2016 → 2025

FY 2016$37.4MFY 2017$117.1MFY 2018$175.2MFY 2019$193.0MFY 2020$232.3MFY 2021$300.3MFY 2022$279.2MFY 2023$309.6MFY 2024$345.5MFY 2025$441.8M
$37.4M$441.8M

Gross margin by year

2021 → 2025

FY 202131.4%FY 202231.4%FY 202330.7%FY 202431.0%FY 202529.5%
31.4%29.5%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

1

Insider buys · 90 days

1

Insider sells · 90 days

Earnings

Last report: 10-Q filed May 6, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • Insider sellInsider Sell $226KStates Lauren · Director · $225.8KMay 27, 2026Filing
  • 8-K eventExecutive RetirementMay 20, 2026Filing
  • 8-K eventAnnual Meeting ResultsMay 20, 2026Filing
  • Insider buyInsider Buy $136KPolito Karyn · Director · $135.8KMay 14, 2026Filing
  • 8-K eventAcquisition AnnouncedMay 14, 2026Filing
  • 8-K eventEarnings ReleaseMay 6, 2026Filing
  • Quarterly report10-Q FiledMay 6, 2026Filing

Questions

Frequently asked questions

What is Clean Harbors, Inc.'s market cap?

Clean Harbors, Inc. (CLH) has a market capitalization of $14.9B.

What is CLH's P/E ratio?

CLH trades at a price-to-earnings ratio of 41.5, based on its latest fiscal-year diluted earnings per share and the most recent cached price.

What is CLH's price-to-book (P/B) ratio?

CLH trades at 5.41 times book value per share.

Are insiders buying CLH stock?

Yes — SEC Form 4 filings show 1 open-market insider buy and 1 sell at Clean Harbors, Inc. in the last 90 days.

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Timeline

Every filing, insider trade & earnings on a price-anchored timeline

Filing Analyzer

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News

Latest press coverage in one feed

Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.