Clean Harbors Ownership
Who are the major shareholders and have insiders been buying or selling?
Recent Insider Transactions
| Date | Value | Name | Entity | Role | Shares | Max Price |
|---|---|---|---|---|---|---|
| 11 May 26 | BuyUS$135,760 | Karyn Polito | Individual | 460 | US$295.13 | |
| 18 Mar 26 | SellUS$240,718 | Marcy Reed | Individual | 836 | US$287.94 | |
| 18 Mar 26 | SellUS$293,000 | Eric Gerstenberg | Individual | 1,000 | US$293.00 | |
| 17 Mar 26 | SellUS$1,373,945 | Brian Weber | Individual | 4,683 | US$293.39 | |
| 04 Mar 26 | SellUS$29,265,000 | Alan McKim | Individual | 100,000 | US$292.65 | |
| 23 Feb 26 | SellUS$699,650 | Eric Gerstenberg | Individual | 2,500 | US$279.86 | |
| 20 Feb 26 | SellUS$784,292 | Eric Dugas | Individual | 2,788 | US$281.31 | |
| 20 Feb 26 | SellUS$998,528 | Sharon Gabriel | Individual | 3,540 | US$282.07 | |
| 19 Feb 26 | SellUS$28,114,000 | Alan McKim | Individual | 100,000 | US$281.14 | |
| 19 Feb 26 | SellUS$204,803 | John Welch | Individual | 750 | US$273.07 | |
| 16 Dec 25 | SellUS$144,781 | Eric Gerstenberg | Individual | 601 | US$240.90 | |
| 01 Aug 25 | BuyUS$467,000 | Michael Battles | Individual | 2,000 | US$233.50 | |
| 31 Jul 25 | SellUS$195,323 | Andrea Robertson | Individual | 836 | US$233.64 | |
| 13 Jun 25 | SellUS$689,461 | Brian Weber | Individual | 3,035 | US$227.17 | |
| 06 Jun 25 | SellUS$1,818,957 | Eric Gerstenberg | Individual | 8,076 | US$225.23 | |
| 05 Jun 25 | SellUS$199,755 | Alison Quirk | Individual | 893 | US$223.69 | |
| 05 Jun 25 | SellUS$22,446,950 | Alan McKim | Individual | 100,000 | US$225.40 | |
| 28 May 25 | SellUS$285,638 | John Welch | Individual | 1,250 | US$228.51 | |
| 27 May 25 | SellUS$233,517 | Robert Speights | Individual | 1,022 | US$228.49 |
Insider Trading Volume
Insider Buying: CLH insiders have sold more shares than they have bought in the past 3 months.
Ownership Breakdown
| Owner Type | Number of Shares | Ownership Percentage |
|---|---|---|
| Private Companies | 8,665 | 0.016% |
| State or Government | 38,621 | 0.0713% |
| Individual Insiders | 2,686,474 | 4.96% |
| Institutions | 51,397,264 | 94.9% |
Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.
Top Shareholders
| Ownership | Name | Shares | Current Value | Change % | Portfolio % | |
|---|---|---|---|---|---|---|
| 4,802,379 | US$1.4b | 4.37% | 0.02% | |||
| 4,514,143 | US$1.3b | 0.54% | 0.01% | |||
| 3,577,034 | US$1.0b | -31% | 0.16% | |||
| 2,355,394 | US$686.4m | -0.87% | 0.24% | |||
| 2,265,223 | US$660.1m | -8.53% | no data | |||
| 2,095,104 | US$610.5m | 471% | 0.03% | |||
| 1,754,950 | US$511.4m | 27.3% | 3.62% | |||
| 1,537,297 | US$448.0m | 2.28% | 0.01% | |||
| 1,338,281 | US$390.0m | -51.9% | 3.29% | |||
| 1,242,142 | US$362.0m | -34.1% | 0.25% | |||
| 1,202,777 | US$350.5m | -9.53% | 0.26% | |||
| 1,131,602 | US$329.7m | 33.2% | 1.66% | |||
| 1,050,973 | US$306.3m | 25.9% | 3.01% | |||
| 945,892 | US$275.6m | 3.06% | 0.01% | |||
| 932,027 | US$271.6m | 1.83% | 0.33% | |||
| 929,327 | US$270.8m | -19.2% | 5.14% | |||
| 889,858 | US$259.3m | 274% | 0.05% | |||
| 778,441 | US$226.8m | 9.95% | 0.12% | |||
| 743,862 | US$216.8m | -35.4% | 0.01% | |||
| 724,028 | US$211.0m | 46.9% | 0.17% | |||
| 649,075 | US$189.1m | 0% | 0.01% | |||
| 608,709 | US$177.4m | -1.76% | 0.02% | |||
| 568,408 | US$165.6m | -45.4% | 0.08% | |||
| 527,657 | US$153.8m | 383% | 0.01% | |||
| 509,679 | US$148.5m | 44.5% | 0.05% |
Company Analysis and Financial Data Status
| Data | Last Updated (UTC time) |
|---|---|
| Company Analysis | 2026/05/21 20:36 |
| End of Day Share Price | 2026/05/21 00:00 |
| Earnings | 2026/03/31 |
| Annual Earnings | 2025/12/31 |
Data Sources
The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.
| Package | Data | Timeframe | Example US Source * |
|---|---|---|---|
| Company Financials | 10 years |
| |
| Analyst Consensus Estimates | +3 years |
|
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| Market Prices | 30 years |
| |
| Ownership | 10 years |
| |
| Management | 10 years |
| |
| Key Developments | 10 years |
|
* Example for US securities, for non-US equivalent regulatory forms and sources are used.
Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.
Analysis Model and Snowflake
Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.
Learn about the world class team who designed and built the Simply Wall St analysis model.
Industry and Sector Metrics
Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.
Analyst Sources
Clean Harbors, Inc. is covered by 29 analysts. 1 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.
| Analyst | Institution |
|---|---|
| David Manthey | Baird |
| William Grippin | Barclays |
| Samuel England | Berenberg |