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Clean Harbors (CLH) Institutional Ownership

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$317.10 -0.24 (-0.08%)
Closing price 10/9/2026 03:59 PM Eastern
Extended Trading
$317.02 -0.08 (-0.02%)
As of 10/9/2026 07:30 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Clean Harbors (NYSE:CLH)

Current
Institutional Ownership
Percentage
90.43%
Number of
Institutional Buyers
(last 12 months)
331
Total
Institutional Inflows
(last 12 months)
$4.13B
Number of
Institutional Sellers
(last 12 months)
247
Total
Institutional Outflows
(last 12 months)
$1.58B
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CLH Institutional Buying and Selling by Quarter

Clean Harbors Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
10/10/2026Armstrong Advisory Group Inc.460$143K0.0%+43.8%0.001%
10/9/2026Wedmont Private Capital1,272$404K0.0%+36.8%0.002%
10/9/2026GAMMA Investing LLC1,503$466K0.0%+12.1%0.003%
10/8/2026Farther Finance Advisors LLC720$223K0.0%+47.5%0.001%
10/8/2026CoreCap Advisors LLC110$34K0.0%-57.9%0.000%
10/8/2026Gradient Investments LLC9,987$3.10M0.0%-6.6%0.019%
10/7/2026Elevation Wealth Partners LLC142$44K0.0%+317.6%0.000%
10/6/2026Central Pacific Bank Trust Division720$223K0.0%+12.5%0.001%
10/5/2026Argent Capital Management LLC9,228$2.86M0.0%N/A0.017%
10/5/2026MassMutual Private Wealth & Trust FSB986$306K0.0%-6.6%0.002%
10/2/2026 Versant Capital Management Inc2,624$814K0.1%+3.0%0.005%
9/9/2026Sequoia Financial Advisors LLC988$295K0.0%+24.9%0.002%
9/9/2026Tidal Investments LLC33,222$9.93M0.0%-53.8%0.063%
9/9/2026Van Hulzen Asset Management LLC797$238K0.0%-11.1%0.002%
9/9/2026WINTON GROUP Ltd8,760$2.62M0.1%N/A0.017%
9/9/2026Engineers Gate Manager LP35,732$10.68M0.1%+495.3%0.068%
9/9/2026C WorldWide Group Holding A S42,397$12.67M0.3%-15.0%0.080%
9/9/2026Integrated Wealth Concepts LLC2,911$870K0.0%+20.8%0.006%
9/9/2026NewEdge Advisors LLC1,956$584K0.0%-2.0%0.004%
9/9/2026Squarepoint Ops LLC46,028$13.75M0.0%N/A0.087%
9/9/2026Baird Financial Group Inc.4,705$1.41M0.0%+5.1%0.009%
9/8/2026Allworth Financial LP525$157K0.0%-17.8%0.001%
9/8/2026Arizona State Retirement System13,870$4.14M0.0%-0.6%0.026%
9/8/2026West Family Investments Inc.751$224K0.1%N/A0.001%
9/8/2026Nykredit A S1,319$394K0.0%N/A0.002%
8/27/2026Corient Private Wealth LP23,260$6.95M0.0%-41.8%0.044%
8/26/2026Amundi7,436$2.22M0.0%-93.0%0.014%
8/26/2026HighTower Advisors LLC7,518$2.25M0.0%-10.7%0.014%
8/25/2026Groupe la Francaise8,588$2.57M0.0%-16.6%0.016%
8/25/2026VIRGINIA RETIREMENT SYSTEMS ET Al3,320$992K0.0%N/A0.006%
8/23/2026Wedmont Private Capital930$283K0.0%+18.6%0.002%
8/23/2026HB Wealth Management LLC1,506$450K0.0%+7.2%0.003%
8/22/2026AlphaGrep UK Ltd2,006$599K0.2%N/A0.004%
8/22/2026Syon Capital LLC3,760$1.12M0.0%-5.2%0.007%
8/22/2026Concurrent Investment Advisors LLC4,540$1.36M0.0%+2.0%0.009%
8/21/2026Nykredit A S1,319$394K0.0%N/A0.002%
8/21/2026Acorn Wealth Advisors LLC822$246K0.1%-21.2%0.002%
8/20/2026Proficio Capital Partners LLC1,996$596K0.0%N/A0.004%
8/20/2026Headlands Technologies LLC6,134$1.83M0.2%+114.5%0.012%
8/20/2026Sigma Planning Corp715$214K0.0%-24.3%0.001%
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8/20/2026Benjamin Edwards Inc.4,442$1.33M0.0%-40.3%0.008%
8/20/2026Northwestern Mutual Wealth Management Co.911$272K0.0%-4.6%0.002%
8/20/2026Wedbush Securities Inc.1,043$312K0.0%+33.4%0.002%
8/19/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC466,863$139.48M0.0%-9.8%0.884%
8/19/2026Hsbc Holdings PLC22,326$6.70M0.0%-0.6%0.042%
8/19/2026Wellington Management Group LLP3,155,233$942.63M0.2%-11.8%5.977%
8/19/2026Lombard Odier Asset Management Europe Ltd14,600$4.36M0.0%N/A0.028%
8/18/2026Beacon Pointe Advisors LLC1,158$346K0.0%N/A0.002%
8/18/2026Empowered Funds LLC3,508$1.05M0.0%N/A0.007%
8/18/2026United Capital Financial Advisors LLC1,306$390K0.0%N/A0.002%
8/18/2026Jefferies Financial Group Inc.5,185$1.55M0.0%N/A0.010%
8/18/2026Public Employees Retirement System of Ohio32,357$9.67M0.0%N/A0.061%
8/17/2026Capstone Investment Advisors LLC887$265K0.0%N/A0.002%
8/17/2026Proficio Capital Partners LLC1,996$596K0.0%N/A0.004%
8/17/2026Corient Private Wealth LP24,156$7.22M0.0%N/A0.046%
8/17/2026Pillsbury Lake Capital LLC49,604$14.82M0.0%N/A0.094%
8/17/2026Bank of America Corp DE477,994$142.80M0.0%N/A0.905%
8/15/2026Freestone Grove Partners LP1,907$570K0.0%N/A0.004%
8/15/2026Odyssean LLC4,145$1.24M0.2%N/A0.008%
8/15/2026Man Group plc18,764$5.61M0.0%N/A0.036%
8/15/2026Jupiter Topco LLC1,598,574$477.57M0.2%N/A3.028%
8/14/2026Hsbc Holdings PLC22,326$6.70M0.0%N/A0.042%
8/14/2026Legal & General Group Plc67,504$20.17M0.0%N/A0.128%
8/14/2026The Manufacturers Life Insurance Company36,767$10.98M0.0%N/A0.070%
8/14/2026Van Hulzen Asset Management LLC797$238K0.0%N/A0.002%
8/14/2026Algert Global LLC9,250$2.76M0.0%N/A0.018%
8/13/2026Gallo Partners LP5,968$1.78M4.0%N/A0.011%
8/13/2026Cibc World Market Inc.928$277K0.0%N/A0.002%
8/13/2026Sanctuary Advisors LLC1,479$442K0.0%N/A0.003%
8/13/2026Meiji Yasuda Asset Management Co Ltd.1,159$346K0.0%N/A0.002%
8/13/2026Bank of Nova Scotia1,350$403K0.0%N/A0.003%
8/12/2026Commerce Bank1,701$508K0.0%N/A0.003%
8/12/2026Northwestern Mutual Wealth Management Co.911$272K0.0%N/A0.002%
8/12/2026Quantbot Technologies LP6,997$2.09M0.1%N/A0.013%
8/12/2026Evolve Private Wealth LLC696$208K0.0%N/A0.001%
8/12/2026William Blair Investment Management LLC419,210$125.24M0.4%N/A0.794%
8/12/2026Landscape Capital Management L.L.C.707$211K0.0%N/A0.001%
8/12/2026EP Wealth Advisors LLC2,236$668K0.0%N/A0.004%
8/12/2026Ieq Capital LLC2,341$699K0.0%N/A0.004%
8/12/2026Burnham & Co LLC3,580$1.07M0.9%N/A0.007%
8/12/2026Callan Family Office LLC3,058$914K0.0%N/A0.006%
8/11/2026Allworth Financial LP525$157K0.0%N/A0.001%
8/11/2026D L Carlson Investment Group Inc.19,325$5.77M0.9%N/A0.037%
8/11/2026Vise Technologies Inc.1,762$526K0.0%N/A0.003%
8/11/2026Algebris UK Ltd.2,088$622K0.0%N/A0.004%
8/11/2026Lisanti Capital Growth LLC5,745$1.72M0.4%N/A0.011%
8/10/2026West Family Investments Inc.751$224K0.1%N/A0.001%
8/10/2026NewEdge Wealth LLC3,095$925K0.0%N/A0.006%
8/10/2026Danica Pension Livsforsikringsaktieselskab37,094$11.08M0.2%N/A0.070%
8/8/2026M.D. Sass LLC270,507$80.81M5.3%N/A0.512%
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8/7/2026Citizens Financial Group Inc. RI696$208K0.0%N/A0.001%
8/7/2026K.J. Harrison & Partners Inc10,225$3.06M0.4%N/A0.019%
8/7/2026BlackRock Inc.5,076,220$1.52B0.0%N/A9.616%
8/7/2026Deutsche Bank AG51,836$15.49M0.0%N/A0.098%
8/7/2026Perigon Wealth Management LLC1,468$439K0.0%N/A0.003%
8/7/2026TimesSquare Capital Management LLC6,796$2.03M0.0%N/A0.013%
8/7/2026Mitsubishi UFJ Asset Management Co. Ltd.119$36K0.0%N/A0.000%
8/7/2026Simplicity Wealth LLC3,621$1.08M0.0%N/A0.007%
8/6/2026Global Retirement Partners LLC2,769$827K0.0%N/A0.005%
8/6/2026Bank of New York Mellon Corp354,685$105.96M0.0%N/A0.672%


CLH Institutional Ownership - Frequently Asked Questions

During the previous two years, 669 institutional investors and hedge funds held shares of Clean Harbors. The most heavily invested institutionals were BlackRock Inc. ($1.52B), Vanguard Group Inc. ($1.05B), Wellington Management Group LLP ($942.63M), Janus Henderson Group PLC ($675.37M), Jupiter Topco LLC ($477.57M), FMR LLC ($387.31M), and Pictet Asset Management Holding SA ($356.09M).Learn more on Clean Harbors' institutional investors.

90.43% of Clean Harbors' stock is owned by institutional investors. Learn more on CLH's institutional investor holdings.

Of the 568 institutional investors that purchased Clean Harbors' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($5.08M), Wellington Management Group LLP ($1.94M), Norges Bank ($1.88M), Jupiter Topco LLC ($1.60M), Nordea Investment Management AB ($1.04M), William Blair Investment Management LLC ($830.64K), and Pictet Asset Management Holding SA ($697.63K).

Institutional investors have bought a total of 15,105,387 shares in the last 24 months. This purchase volume represents approximately $4.13B in transactions.

Of the 247 institutional investors that sold Clean Harbors' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Wellington Management Group LLP ($1.00M), Pictet Asset Management Holding SA ($829.37K), Handelsbanken Fonder AB ($317.27K), Invesco Ltd. ($218.13K), Impax Asset Management Group plc ($207.65K), LBP AM SA ($186.50K), and Bessemer Group Inc. ($182.42K).

Institutional investors have sold a total of 6,277,950 shares in the last 24 months. This volume of shares sold represents approximately $1.58B in transactions.


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Institutional ownership data for NYSE:CLH is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 10/10/2026. New 13F filings are added each quarter as they're published.
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