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
Q4 2019Renaissance Technologies LLCBuy106,6331,877,635$161,007
Q3 2019Renaissance Technologies LLCBuy121,1001,771,002$136,721
Q2 2019Renaissance Technologies LLCBuy18,3001,649,902$117,308
Q1 2019Renaissance Technologies LLCSell-18,1001,631,602$116,708
Q4 2018Renaissance Technologies LLCBuy260,8001,649,702$81,413
Q3 2018Renaissance Technologies LLCBuy156,2001,388,902$99,418
Q2 2018Turtle Creek Asset ManagementSell-12,70022,350$1,242
Q1 2018Renaissance Technologies LLCBuy35,6001,232,702$60,168
Q1 2018Turtle Creek Asset ManagementBuy5,00035,050$1,711
Q4 2017Renaissance Technologies LLCBuy217,1021,197,102$64,883
Q4 2017Turtle Creek Asset ManagementBuy6,45030,050$1,629
Q3 2017Renaissance Technologies LLCBuy3,698980,000$55,566
Q3 2017Turtle Creek Asset ManagementBuy80023,600$1,338
Q2 2017Turtle Creek Asset ManagementSell-240,95422,800$1,273
Q2 2017Renaissance Technologies LLCSell-114,700976,302$54,507
Q1 2017Renaissance Technologies LLCBuy175,6021,091,002$60,682
Q1 2017Turtle Creek Asset ManagementBuy44,400263,754$14,670
Q4 2016Turtle Creek Asset ManagementSell-330,286219,354$12,207
Q4 2016Renaissance Technologies LLCBuy132,200915,400$50,942
Q3 2016Renaissance Technologies LLCBuy105,400783,200$37,578
Q3 2016Turtle Creek Asset ManagementBuy76,400549,640$26,372
Q2 2016Renaissance Technologies LLCBuy90,298677,800$35,320
Q2 2016Turtle Creek Asset ManagementBuy18,896473,240$24,661
Q1 2016Renaissance Technologies LLCBuy14,612587,502$28,987
Q1 2016Turtle Creek Asset ManagementBuy1,600454,344$22,417
Q4 2015Renaissance Technologies LLCBuy453,817572,890$23,861
Q4 2015Turtle Creek Asset ManagementBuy74,000452,744$18,857
Q3 2015Turtle Creek Asset ManagementBuy107,400378,744$16,653
Q3 2015Renaissance Technologies LLCBuy43,371119,073$5,236
Q2 2015Renaissance Technologies LLCSell-36,80075,702$4,068

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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