CLEAN HARBORS INC
Hazardous Waste Management
Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset . How we calculate this.
What CLEAN HARBORS INC reports
Revenue and net income below are for fiscal period FY2025, the period label carried by this company’s own annual XBRL filings to the SEC. Fiscal years do not line up between companies — one company’s FY2026 can cover much the same months as another’s FY2025 — so compare the periods, not just the numbers.
Where the employee count comes from
Headcount comes from Yahoo Finance, not from a filing. The date beside it is the day we retrieved the figure — it is not the date the company counted its staff, and Yahoo does not publish that date. Unlike the SEC filings behind the other figures on this page, this one carries no open licence, so we publish the number and nothing else from that source.
Insiders at CLEAN HARBORS INC
Shares is what each person last reported holding here.
Everyone below has filed at least one insider report against this company.
Value is that share count priced at the same closing price used everywhere else on this site. A row priced from only some of a person’s securities says so — we do not quietly present a partial sum as a complete one.
Rows are grouped by the role each person reports.
The role comes from the relationship boxes a person ticks on their own insider filings — officer, director, ten per cent owner — not from anything we infer. Somebody who is both an officer and a director appears once, in the combined group, so the row count still matches the figure at the top of this page. Where no filing states a role we say so instead of guessing one.
| Insider | Reported role | Shares | Value | Last action |
|---|---|---|---|---|
| Officers 10 | ||||
| Brian P Weber | EVP | 48,728 | $15.45M | F Shares withheld for taxes Jul 1, 2026 position reported |
| George L. Curtis | EVP | 46,048 | $14.60M | F Shares withheld for taxes Jul 1, 2026 position reported |
| Eric W. Gerstenberg | CEO | 38,877 | $12.33M | S Open-market sale Aug 14, 2026 position reported |
| Sharon M Gabriel | CIO | 21,065 | $6.68M | F Shares withheld for taxes Jul 1, 2026 position reported |
| Rebecca Underwood | President | 18,684 | $5.92M | F Shares withheld for taxes Jul 1, 2026 position reported |
| Jeroen Diderich | President | 17,855 | $5.66M | F Shares withheld for taxes Jun 1, 2026 position reported |
| Robert Speights | President | 16,310 | $5.17M | S Open-market sale May 27, 2025 position reported |
| Eric J Dugas | CFO | 13,979 | $4.43M | F Shares withheld for taxes Jul 1, 2026 position reported |
| Charles H. Geer II | EVP | 10,839 | $3.44M | F Shares withheld for taxes Jul 1, 2026 position reported |
| Robert W Harrison | EVP | 6,648 | $2.11M | F Shares withheld for taxes Mar 13, 2026 position reported |
| Officers who also sit on the board 3 | ||||
| Alan S. McKim | Executive Chairman | 2,265,223 | $718.30M | F Shares withheld for taxes Jul 17, 2026 position reported |
| Michael Louis Battles | CEO | 95,387 | $30.25M | F Shares withheld for taxes Jul 1, 2026 position reported |
| Robert Willett | CEO | 9,376 | $2.97M | A Grant or award May 20, 2026 position reported |
| Directors 8 | ||||
| Edward G. Galante | Board Member | 24,809 | $7.87M | A Grant or award May 20, 2026 position reported |
| Lauren States | Board Member | 11,496 | $3.65M | S Open-market sale May 26, 2026 position reported |
| John R Welch | Board Member | 10,237 | $3.25M | A Grant or award May 20, 2026 position reported |
| Andrea Robertson | Board Member | 9,458 | $3.00M | S Open-market sale Aug 3, 2026 position reported |
| John T. Preston | Board Member | 6,392 | $2.03M | A Grant or award May 20, 2026 position reported |
| Marcy L Reed | Board Member | 5,081 | $1.61M | A Grant or award May 20, 2026 position reported |
| Shelley Stewart Jr. | Board Member | 3,871 | $1.23M | A Grant or award May 20, 2026 position reported |
| Karyn Polito | Board Member | 3,015 | $956.1K | A Grant or award May 20, 2026 position reported |
Recent insider transactions
Of the 228 rows we hold, 3 are open-market purchases (P) and 38 open-market sales (S) — the only codes we count as buying or selling.
The rest — awards, shares withheld to pay tax, option exercises, gifts and so on — follow from an employment contract or a transfer arranged off-market, not from a decision to buy or sell, so counting them would turn this into a pay table.
A price of 0.00 is a real reported figure on gifts (G) and share awards (A) — not a gap in our data.
| Date | Insider | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|
| Aug 14, 2026 | Eric W. Gerstenberg | S Open-market sale | 2,500 | $321.34 | $803.4K | SEC filing ↗ |
| Aug 3, 2026 | Andrea Robertson | S Open-market sale | 789 | $314.01 | $247.8K | SEC filing ↗ |
| Jul 17, 2026 | Alan S. McKim | F Shares withheld for taxes | 1,265 | $310.58 | $392.9K | SEC filing ↗ |
| Jul 1, 2026 | Eric J Dugas | F Shares withheld for taxes | 447 | $290.74 | $130.0K | SEC filing ↗ |
| Jul 1, 2026 | Eric W. Gerstenberg | F Shares withheld for taxes | 564 | $290.74 | $164.0K | SEC filing ↗ |
| Jul 1, 2026 | Michael Louis Battles | F Shares withheld for taxes | 1,032 | $290.74 | $300.0K | SEC filing ↗ |
| Jul 1, 2026 | George L. Curtis | F Shares withheld for taxes | 1,757 | $290.74 | $510.8K | SEC filing ↗ |
| Jul 1, 2026 | Charles H. Geer II | F Shares withheld for taxes | 40 | $290.74 | $11.6K | SEC filing ↗ |
| Jul 1, 2026 | Rebecca Underwood | F Shares withheld for taxes | 311 | $290.74 | $90.4K | SEC filing ↗ |
| Jul 1, 2026 | Sharon M Gabriel | F Shares withheld for taxes | 359 | $290.74 | $104.4K | SEC filing ↗ |
| Jul 1, 2026 | Brian P Weber | F Shares withheld for taxes | 814 | $290.74 | $236.7K | SEC filing ↗ |
| Jul 1, 2026 | Alan S. McKim | F Shares withheld for taxes | 1,343 | $290.74 | $390.5K | SEC filing ↗ |
| Jun 1, 2026 | Jeroen Diderich | F Shares withheld for taxes | 1,717 | $281.00 | $482.5K | SEC filing ↗ |
| May 26, 2026 | Lauren States | S Open-market sale | 789 | $286.19 | $225.8K | SEC filing ↗ |
| May 20, 2026 | Karyn Polito | A Grant or award | 652 | $0.00 | $0 | SEC filing ↗ |
| May 20, 2026 | Marcy L Reed | A Grant or award | 652 | $0.00 | $0 | SEC filing ↗ |
| May 20, 2026 | Lauren States | A Grant or award | 652 | $0.00 | $0 | SEC filing ↗ |
| May 20, 2026 | John R Welch | A Grant or award | 652 | $0.00 | $0 | SEC filing ↗ |
| May 20, 2026 | Shelley Stewart Jr. | A Grant or award | 652 | $0.00 | $0 | SEC filing ↗ |
| May 20, 2026 | Robert Willett | A Grant or award | 652 | $0.00 | $0 | SEC filing ↗ |
| May 20, 2026 | Andrea Robertson | A Grant or award | 652 | $0.00 | $0 | SEC filing ↗ |
| May 20, 2026 | Edward G. Galante | A Grant or award | 652 | $0.00 | $0 | SEC filing ↗ |
| May 20, 2026 | John T. Preston | A Grant or award | 652 | $0.00 | $0 | SEC filing ↗ |
| May 11, 2026 | Karyn Polito | P Open-market purchase | 460 | $295.13 | $135.8K | SEC filing ↗ |
| May 11, 2026 | Karyn Polito | A Grant or award | 460 | $295.13 | $135.8K | SEC filing ↗ |
From SEC Form 4 filings. Every row links to the filing it came from. How we calculate this.
What a Form 4 is
The report an officer, director or large shareholder must file after trading their own company’s stock.
Subsidiaries — 135 legal entities
Subsidiaries of CLEAN HARBORS INC
135 legal entities named in the subsidiary exhibit filed with this company’s most recent 10-K. . Filing on SEC.gov.
This is not the full list. SEC rules only require a company to name its significant subsidiaries.
What that leaves out
Smaller entities are left out of the exhibit entirely. A short list here means a short exhibit — it does not mean the company owns nothing else. Nothing on this page is inferred: every name below is copied from the filing.
| Subsidiary | Organised in |
|---|---|
| Ace/Allwaste Environmental Services of Indiana, LLC | Illinois |
| Altair Disposal Services, LLC | Delaware |
| Aquilex Finance LLC | Delaware |
| Aquilex Intermediate Corporate Holdings LLC | Delaware |
| Aquilex Intermediate Holdings LLC | Delaware |
| Aquilex LLC | Delaware |
| Baton Rouge Disposal, LLC | Delaware |
| Bridgeport Disposal, LLC | Delaware |
| CARBER Holdings, Inc. | Delaware |
| CB Canada Acquisition, Inc. | Ontario |
| CB Canada Holdings, Inc. | Ontario |
| CB US Holdings, Inc. | Delaware |
| CH International Holdings, LLC | Delaware |
| Clean Harbors Andover, LLC | Delaware |
| Clean Harbors Aragonite, LLC | Delaware |
| Clean Harbors Arizona, LLC | Delaware |
| Clean Harbors Baton Rouge, LLC | Delaware |
| Clean Harbors BDT, LLC | Delaware |
| Clean Harbors Buttonwillow, LLC | Delaware |
| Clean Harbors Canada, Inc. | New Brunswick |
| Clean Harbors Caribe, Inc. | Puerto Rico |
| Clean Harbors Chattanooga, LLC | Delaware |
| Clean Harbors Clive, LLC | Delaware |
| Clean Harbors Coffeyville, LLC | Delaware |
| Clean Harbors Colfax, LLC | Delaware |
| Clean Harbors Deer Park, LLC | Delaware |
| Clean Harbors Deer Trail, LLC | Delaware |
| Clean Harbors Development, LLC | Delaware |
| Clean Harbors Disposal Services, Inc. | Delaware |
| Clean Harbors El Dorado, LLC | Delaware |
| Clean Harbors Energy and Industrial Services Corp. | Alberta |
| Clean Harbors Energy and Industrial Services LP | Alberta |
| Clean Harbors Energy and Industrial Western Ltd. | Alberta |
| Clean Harbors Energy Services, ULC | Alberta |
| Clean Harbors Environmental Services, Inc. | Massachusetts |
| Clean Harbors Exploration Services, Inc. | Nevada |
| Clean Harbors Florida, LLC | Delaware |
| Clean Harbors Grassy Mountain, LLC | Delaware |
| Clean Harbors India LLP | India |
| Clean Harbors Industrial Services Canada, Inc. | Alberta |
| Clean Harbors Innu Environmental Services, Inc. | Newfoundland |
| Clean Harbors Kansas, LLC | Delaware |
| Clean Harbors Kimball Realty, LLC | Delaware |
| Clean Harbors Kingston Facility Corporation | Massachusetts |
| Clean Harbors LaPorte, LLC | Delaware |
| Clean Harbors Laurel, LLC | Delaware |
| Clean Harbors Lodging Services LP | Alberta |
| Clean Harbors Lodging Services, ULC | Alberta |
| Clean Harbors Lone Mountain, LLC | Delaware |
| Clean Harbors Mercier, Inc. | Quebec |
| Clean Harbors of Baltimore, Inc. | Delaware |
| Clean Harbors of Braintree, Inc. | Massachusetts |
| Clean Harbors of Connecticut, Inc. (DE) | Delaware |
| Clean Harbors Pecatonica, LLC | Delaware |
| Clean Harbors Production Services, ULC | Alberta |
| Clean Harbors Quebec, Inc. | Quebec |
| Clean Harbors Recycling Services of Chicago, LLC | Delaware |
| Clean Harbors Recycling Services of Ohio, LLC | Delaware |
| Clean Harbors Reidsville, LLC | Delaware |
| Clean Harbors San Jose, LLC | Delaware |
| Clean Harbors San Leon, Inc. | Delaware |
| Clean Harbors Services, Inc. | Massachusetts |
| Clean Harbors Surface Rentals Partnership | Alberta |
| Clean Harbors Surface Rentals USA, Inc. | Delaware |
| Clean Harbors Surface Rentals, ULC | Alberta |
| Clean Harbors Tennessee, LLC | Delaware |
| Clean Harbors Westmorland, LLC | Delaware |
| Clean Harbors White Castle, LLC | Delaware |
| Clean Harbors Wichita, LLC | Delaware |
| Clean Harbors Wilmington, LLC | Delaware |
| Cousins Waste Control, LLC | Ohio |
| Crowley Disposal, LLC | Delaware |
| Cyn Oil Corporation | Massachusetts |
| Disposal Properties, LLC | Delaware |
| Emerald Services, Inc. | Washington |
| Emergency Response and Training Solutions, LLC | Delaware |
| Environmental Management Alternatives, LLC | Delaware |
| Environmental Management Specialists, LLC | Delaware |
| EnviroSORT Inc. | Alberta |
| Green View Technologies, Inc. | New Hampshire |
| GSX Disposal, LLC | Delaware |
| Hepaco Blocker, Inc. | Delaware |
| Hepaco GC, LLC | Delaware |
| Hepaco Holding, LLC | Delaware |
| Hepaco, LLC | Delaware |
| Hilliard Disposal, LLC | Delaware |
| HPC Industrial Group, LLC | Delaware |
| HPC Industrial Services, LLC | Delaware |
| HydroChem Canada ULC | Alberta |
| Industrial Service Oil Company, Inc. | California |
| Jesco Industrial Service, LLC | Kentucky |
| Laidlaw Environmental Services de Mexico S.A. de C.V. | Mexico |
| LJ Energy Services Intermediate Holding Corp. | Delaware |
| Lonestar Sylvan Inc. | Federally Chartered |
| Lonestar Vacuum Inc. | Alberta |
| Lonestar West Enterprises LLC | Oklahoma |
| Lonestar West Inc. | Federally Chartered |
| Lonestar West Services LLC | Nevada |
| Murphy's Waste Oil Service, Inc. | Massachusetts |
| Noble Oil Services, Inc. | North Carolina |
| Northeast Casualty Insurance Company | Vermont |
| NTS, LLC | North Carolina |
| Philip Services/North Central, LLC | Iowa |
| Plaquemine Remediation Services, LLC | Delaware |
| PSC Industrial Holdings Corp. | Delaware |
| PSC Industrial Outsourcing of Michigan, LLC | Ohio |
| PSC Industrial Outsourcing, LP | Delaware |
| PSC Industrial, Inc. | Delaware |
| PSC LDAR Services, LLC | Delaware |
| Ricky's Oil & Environmental Services, LLC | Florida |
| RMF Aquilex Corp. | Delaware |
| Roebuck Disposal, LLC | Delaware |
| Rosemead Oil Products, Inc. | California |
| Safety-Kleen Canada Inc. | New Brunswick |
| Safety-Kleen Envirosystems Company | California |
| Safety-Kleen Envirosystems Company of Puerto Rico, Inc. | Indiana |
| Safety-Kleen International, Inc. | Delaware |
| Safety-Kleen of California, Inc. | California |
| Safety-Kleen Systems, Inc. | Wisconsin |
| Safety-Kleen, Inc. | Delaware |
| Sawyer Disposal Services, LLC | Delaware |
| Seaport Environmental, LLC | Delaware |
| Service Chemical, LLC | Delaware |
| SK D'Incineration Inc. | Quebec |
| Spring Grove Resource Recovery, Inc. | Delaware |
| Synergy Hydrocarbon Recovery, LLC | Florida |
| Synergy Recycling of Central Florida, LLC | Georgia |
| Synergy Recycling, LLC | Florida |
| The Solvents Recovery Service of New Jersey, Inc. | New Jersey |
| Thermo Fluids Inc. | Delaware |
| Thompson Industrial Services, LLC | North Carolina |
| Tri-vax Enterprises Ltd. | Alberta |
| Tulsa Disposal, LLC | Delaware |
| Versant Energy Services, Inc. | Delaware |
| Versant Energy Services, LP | Alberta |
What counts as a subsidiary
A subsidiary is a separate legal entity this company controls; it is not the same thing as a brand, a division or an office. These entities do not file with the SEC in their own right, so there is no separate page to open for them.
Think a number here is wrong? Open the linked filing and compare — how to report it.
Sources and technical notes
Every figure on this page comes from filings to the U.S. SEC via EDGAR. Nothing here is estimated, and nothing is taken from press coverage or company websites.
Share count: cover page of the latest filing (dei:EntityCommonStockSharesOutstanding), taken from
CLEAN HARBORS INC’s own filings and multiplied by our closing price.
Full method.
What that share count means
the share count the company itself prints on the cover of its most recent filing, as of the date it signed that filing.
We do not take a market cap from a data vendor, and we do not estimate one: the figure is a share count from CLEAN HARBORS INC’s own SEC filings multiplied by the closing price we hold for the same stock.
Logo: Clean Harbors / CC BY 3.0 , via Wikimedia Commons ↗ — used here to identify the company. Trademarks remain the property of their owner.