InvestorLens

CLH — CLEAN HARBORS INC

Public company

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For educational research only.InvestorLens analyzes public regulatory filings (SEC EDGAR, STOCK Act PTRs) that may be delayed by 45 days or more. Information shown is historical and is not financial, legal, or tax advice, nor a recommendation or solicitation to buy or sell any security. Always do your own research.

InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.

Sourced from SEC EDGAR public filings

About CLEAN HARBORS INC (CLH)

CLEAN HARBORS INC (CLH) appears in the most recent 13F filings of 6 tracked institutional investors. The largest disclosed position is held by Steve Mandel (Lone Pine Capital), valued at $503M. Across recent filings, tracked investors recorded 7 new positions, 0 increased, 0 reduced, and 1 exited. All data sourced from SEC 13F filings.

Smart Money Consensus™

Based on recent institutional activity in CLH

88
/100
Strong Institutional Accumulation
Added / Increased7
Reduced0
Exited1
BearishBullish
Crowded Trade Score™

How many top investors track CLH

40
/100
Moderate Interest
6investors

Several tracked investors have exposure.

UndiscoveredCrowded
151015+

CLH Ownership Composition

How CLEAN HARBORS INC is held across tracked investor types, based on reported 13F positions.

Dominant Type
Other
97% of tracked value
Institutions
6
tracked investors
Total Reported
$555.5M
combined 13F value
Sectors2
  • Other97.1%
  • Hedge Funds2.9%
Other(5)
97.1%
Hedge Funds(1)
2.9%

Tracked investors reporting CLH

  • Steve MandelMar 31, 2026
    Lone Pine Capital
    Shares
    1.8M
    Value
    $503.2M
    % Portfolio
    4.01%
  • Steve CohenMar 31, 2026
    Point72 Asset Management
    Shares
    56.6K
    Value
    $16.2M
    % Portfolio
    0.02%
  • Izzy EnglanderMar 31, 2026
    Millennium Management
    Shares
    63.9K
    Value
    $18.3M
    % Portfolio
    0.01%
  • Ken GriffinMar 31, 2026
    Citadel Advisors
    Shares
    59.9K
    Value
    $17.2M
    % Portfolio
    0.00%
  • Paul Tudor JonesDec 31, 2025
    Tudor Investment Corp
    Shares
    2.4K
    Value
    $572.1K
    % Portfolio
    0.00%
  • Ray DalioSep 30, 2025
    Bridgewater Associates
    Shares
    5.8K
    Value
    $1.3K
    % Portfolio
    0.00%

Recent activity

Frequently asked questions

How many institutional investors hold CLH?
6 tracked institutional investors disclosed a position in CLH (CLEAN HARBORS INC) in their most recent 13F filing.
Who is the largest institutional holder of CLH?
Steve Mandel, Lone Pine Capital, holds the largest disclosed position in CLH, valued at $503M.
Did institutional ownership of CLH increase or decrease?
Across recent 13F filings, tracked investors recorded 7 new positions, 0 increased, 0 reduced, and 1 fully exited CLH.
Where does this CLH ownership data come from?
SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.
CLH (CLEAN HARBORS INC) — Institutional Holders & 13F — InvestorLens