CLH Clean Harbors Inc.
Industrials, filed as CLEAN HARBORS INC (COM), Equity As of 2026 Q2 among managers we track Quote on Google Finance, opens in a new tab
In 2026 Q2 Henry Ellenbogen trimmed Clean Harbors, and Stephen Mandel sold out.
Who owns this now
Largest portfolio weights among holders, up to 2.6% (Henry Ellenbogen, Durable Capital Partners). Not free-float ownership.
Who owns CLH
Sorted by value, long equity only, as of 2026 Q2. Exits show their last held size.
| History | |||||
|---|---|---|---|---|---|
| Dan Sundheim, D1 Capital Partners | Small trim −1.7% | 1,315,501 | $393M | History | |
| Henry Ellenbogen, Durable Capital Partners | Reduce −15.1% | 892,405 | $267M | History | |
| First Eagle Investment Management | Small add +1.5% | 3,874 | $1.2M | History | |
| Stephen Mandel, Lone Pine Capital exited 2026 Q2 Last 2026 Q1 | Exit −4.01% | 1,754,950 | $503M | History |
Insider trades
Open-market buys and sales by CLH's executives, directors and 10% owners in the last 12 months, from their Form 4s
- $136K bought by 1 insider
- $63.4M sold by 9 insiders outside a trading plan
- None no planned (10b5-1) sales
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Eric W Gerstenberg CEOSale$803K 2,500 shares at $321.34 4.2% of stakeTraded Aug 14 Filed Aug 18
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Eric J. Dugas CFOSale$784K 2,788 shares at $281.31 12% of stakeTraded Feb 20 Filed Aug 14
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Eric W Gerstenberg CEOSale$293K 1,000 shares at $293.00 1.6% of stakeTraded Mar 18 Filed Aug 14
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Eric W Gerstenberg CEOSale$700K 2,500 shares at $279.86 3.8% of stakeTraded Feb 23 Filed Aug 14
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Andrea Robertson DirectorSale$248K 789 shares at $314.01 8.1% of stakeTraded Aug 3 Filed Aug 3
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Lauren States DirectorSale$226K 789 shares at $286.19 6.5% of stakeTraded May 26 Filed May 27
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Karyn Polito DirectorBuy$136K 460 shares at $295.13 +15% to stakeTraded May 11 Filed May 14
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Marcy L. Reed DirectorSale$241K 836 shares at $287.94 14% of stakeTraded Mar 18 Filed Mar 19
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Brian P Weber EVP (chesi)Sale$1.4M 4,683 shares at $293.39 8.8% of stakeTraded Mar 17 Filed Mar 17
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Alan S McKim ChairSale$29.3M 100,000 shares at $292.65 4.6% of stakeTraded Mar 4 Filed Mar 5
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Alan S McKim ChairSale$28.1M 100,000 shares at $281.14 4.2% of stakeTraded Feb 19 Filed Feb 23
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Sharon M. Gabriel EVP/CIO (chesi)Sale$999K 3,540 shares at $282.07 13% of stakeTraded Feb 20 Filed Feb 20
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John R. Welch DirectorSale$205K 750 shares at $273.07 6.8% of stakeTraded Feb 19 Filed Feb 20
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Eric W Gerstenberg CEOSale$145K 601 shares at $240.90 1.2% of stakeTraded Dec 16, 2025 Filed Dec 17, 2025
Also filed in the last 12 months, not counted as buying or selling: 36 share withholdings for taxes, 29 stock grants, 9 sales back to the company, and 5 gifts.
Congress
2 members of Congress traded CLH in the last three years: 2 buys and 11 sales. 1 member listed it in 2025 annual reports.
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April McClain Delaney
Sell
$50K–$100K
Aug 25
filed Sep 9
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April McClain Delaney
Partial sale
$1K–$15K
Jul 28
filed Aug 3
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April McClain Delaney
Partial sale
$1K–$15K
Jul 27
filed Aug 3
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April McClain Delaney
Partial sale
$1K–$15K
Jul 24
filed Aug 3
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April McClain Delaney
Partial sale
$1K–$15K
May 1
filed Jun 5
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April McClain Delaney
Partial sale
$1K–$15K
Apr 30
filed May 6
SEC filings
Recent issuer filings from EDGAR, 9 shown.
Financials
US-GAAP annual figures by fiscal year, as tagged in Form 10-K. Each value links to its SEC filing.
Income statement
Balance sheet
Ownership over time
13Fs that reported it each quarter. Click a bar for that quarter’s holders.