CLEAN HARBORS INC (CLH) Institutional Ownership Changes & 13F Activity

CLEAN HARBORS INC (CLH). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Lone Pine Capital, Durable Capital Partners, Sequoia Financial Advisors, First Eagle U.S. Value, and Renaissance Technologies LLC.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Lone Pine CapitalBuy376,8251,754,950$503,196,814
Q1 2026Durable Capital PartnersBuy216,2101,050,973$301,345,488
Q1 2026Sequoia Financial AdvisorsSell-1,109791$226,804
Q4 2025Lone Pine CapitalBuy1,378,1251,378,125$323,142,750
Q4 2025Durable Capital PartnersBuy261,097834,763$195,735,228
Q4 2025First Eagle U.S. ValueBuy3,8163,816$894,776
Q4 2025Sequoia Financial AdvisorsBuy1,9001,900$445,512
Q3 2025Durable Capital PartnersBuy573,666573,666$133,216,719
Q3 2025Renaissance Technologies LLCBuy7,86911,302$2,624,550
Q1 2025Renaissance Technologies LLCSell-21,2003,433$676,644
Q4 2024Renaissance Technologies LLCSell-5,10024,633$5,669,039
Q3 2024Renaissance Technologies LLCSell-25,60029,733$7,186,763
Q2 2024Renaissance Technologies LLCSell-70,30255,333$12,513,558
Q1 2024Renaissance Technologies LLCSell-47,898125,635$25,292
Q4 2023Renaissance Technologies LLCSell-56,200173,533$30,283
Q3 2023Renaissance Technologies LLCSell-67,800229,733$38,448
Q2 2023Renaissance Technologies LLCSell-190,102297,533$48,923
Q1 2023Renaissance Technologies LLCSell-43,200487,635$69,517
Q4 2022Renaissance Technologies LLCBuy91,200530,835$60,579
Q3 2022Renaissance Technologies LLCBuy63,202439,635$48,351
Q2 2022Renaissance Technologies LLCBuy13,700376,433$33,002
Q1 2022Renaissance Technologies LLCSell-5,700362,733$40,496
Q4 2021Renaissance Technologies LLCSell-54,302368,433$36,759
Q3 2021Renaissance Technologies LLCSell-89,698422,735$43,909
Q2 2021Renaissance Technologies LLCSell-262,802512,433$47,728
Q1 2021Renaissance Technologies LLCSell-329,200775,235$65,166
Q4 2020Renaissance Technologies LLCSell-123,1001,104,435$84,048
Q3 2020Renaissance Technologies LLCSell-40,1001,227,535$68,779
Q2 2020Renaissance Technologies LLCSell-235,0001,267,635$76,033
Q1 2020Renaissance Technologies LLCSell-375,0001,502,635$77,145

Frequently asked questions about CLH activity

  • Which institutional owners are buying CLH?

    Institutional owners buying CLH include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in CLH activity?

    "Buy" means an investor increased their reported position in CLH compared to the prior reporting period. This reflects growing exposure to CLEAN HARBORS INC (CLH) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in CLH increasing?

    Institutional interest in CLH can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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