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Clean Harbors Inc

CLH
Exchange
NYSE
Industry
Hazardous Waste Management
SEC CIK
0000822818

In the last 90 days, Clean Harbors Inc insiders filed 0 open-market purchases and 5 sales; 663 institutions reported holding it in 13F filings for Q2 2026, worth $14.8B in total; D1 Capital Partners is the only superinvestor holding it.

13F holders, Q2 2025

Institutional positions in Clean Harbors Inc as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
579
+19 vs. Q1 2025
Shares held
49.1M
+377.7K (+0.8%) vs. Q1 2025
Total value
$11.4B
+$1.75B (+18.2%) vs. Q1 2025
New holders
75
169 more added
Sold out
56
227 more reduced

3 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting CLH on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2025: 579 institutions
Q1 2021: 289 institutionsQ2 2021: 286 institutionsQ3 2021: 309 institutionsQ4 2021: 327 institutionsQ1 2022: 345 institutionsQ2 2022: 337 institutionsQ3 2022: 369 institutionsQ4 2022: 380 institutionsQ1 2023: 405 institutionsQ2 2023: 417 institutionsQ3 2023: 421 institutionsQ4 2023: 450 institutionsQ1 2024: 481 institutionsQ2 2024: 518 institutionsQ3 2024: 572 institutionsQ4 2024: 573 institutionsQ1 2025: 563 institutionsQ2 2025: 579 institutionsQ3 2025: 569 institutionsQ4 2025: 568 institutionsQ1 2026: 626 institutionsQ2 2026: 663 institutions
Value heldQ2 2025: $11.4B
Q1 2021: $4.07BQ2 2021: $4.48BQ3 2021: $5.02BQ4 2021: $4.78BQ1 2022: $5.38BQ2 2022: $4.23BQ3 2022: $5.31BQ4 2022: $5.49BQ1 2023: $6.88BQ2 2023: $8.16BQ3 2023: $8.31BQ4 2023: $8.50BQ1 2024: $9.67BQ2 2024: $10.9BQ3 2024: $11.5BQ4 2024: $11.3BQ1 2025: $9.61BQ2 2025: $11.4BQ3 2025: $11.6BQ4 2025: $12.1BQ1 2026: $14.1BQ2 2026: $14.8B
Institutions holding CLH and their total value by quarter
QuarterHoldersValue
Q2 2026663$14.8B
Q1 2026626$14.1B
Q4 2025568$12.1B
Q3 2025569$11.6B
Q2 2025579$11.4B
Q1 2025563$9.61B
Q4 2024573$11.3B
Q3 2024572$11.5B
Q2 2024518$10.9B
Q1 2024481$9.67B
Q4 2023450$8.50B
Q3 2023421$8.31B
Q2 2023417$8.16B
Q1 2023405$6.88B
Q4 2022380$5.49B
Q3 2022369$5.31B
Q2 2022337$4.23B
Q1 2022345$5.38B
Q4 2021327$4.78B
Q3 2021309$5.02B
Q2 2021286$4.48B
Q1 2021289$4.07B

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Clean Harbors Inc; share changes are against Q1 2025.

Institutions holding CLH in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Verition Fund Management LLC19,549$4.52M0.03%−217−1.1%Reduced
Martingale Asset Management L P19,993$4.62M0.11%−165−0.8%Reduced
XTX Topco Ltd20,226$4.68M0.19%+10,433+106.5%Added
Arrowstreet Capital, Limited Partnership20,399$4.72M0.00%−889−4.2%Reduced
State of Tennessee, Treasury Department20,424$4.72M0.02%00.0%Unchanged
Assenagon Asset Management S.A.20,788$4.81M0.01%−123,189−85.6%Reduced
Amica Mutual Insurance Co20,820$4.81M0.46%00.0%Unchanged
Deutsche Bank AG21,422$4.95M0.00%+2,397+12.6%Added
Jackson Square Partners, LLC21,835$5.05M1.87%−109,273−83.3%Reduced
NEOS Investment Management LLC21,905$5.06M0.06%−18,753−46.1%Reduced
Tema ETFs LLC21,905$5.06M1.34%−18,753−46.1%Reduced
Brant Point Investment Management LLC22,001$5.09M1.16%−7,633−25.8%Reduced
LPL Financial LLC22,465$5.19M0.00%+1,072+5.0%Added
Amalgamated Bank23,138$5.35M0.04%−114−0.5%Reduced
Treasurer of the State of North Carolina23,663$5.47M0.02%+366+1.6%Added
J.P. Marvel Investment Advisors, LLC24,155$5.58M0.90%−98−0.4%Reduced
Teachers Retirement System of the State of Kentucky24,814$5.74M0.05%+1,465+6.3%Added
Nicholas Investment Partners, LP25,477$5.89M0.52%−1,111−4.2%Reduced
Aventail Capital Group, LP25,680$5.94M0.26%+17,477+213.1%Added
Bullseye Asset Management LLC25,722$5.95M2.97%00.0%Unchanged
AQR Capital Management LLC25,796$5.96M0.00%−6,432−20.0%Reduced
Bell Asset Management Ltd26,059$6.02M1.33%−12,069−31.7%Reduced
MetLife Investment Management27,126$6.27M0.04%−1,013−3.6%Reduced
Dark Forest Capital Management LP27,403$6.34M0.25%−3,206−10.5%Reduced
Cooper Investors Pty Ltd27,522$6.36M1.16%+3,023+12.3%Added
Atria Investments LLC27,764$6.42M0.08%+4,842+21.1%Added
Twin Tree Management, LP29,501$6.82M0.17%+27,398+1,302.8%Added
Daiwa Securities Group Inc.29,590$6.84M0.03%−3,133−9.6%Reduced
Barclays PLC30,296$7.00M0.00%−6,448−17.5%Reduced
Holocene Advisors, LP31,341$7.25M0.02%+22,306+246.9%Added
Mariner, LLC31,709$7.33M0.01%+2,613+9.0%Added
Universal- Beteiligungs- und Servicegesellschaft mbH31,989$7.40M0.01%+6,225+24.2%Added
Quantinno Capital Management LP32,063$7.41M0.03%+4,272+15.4%Added
Sycomore Asset Management31,437$7.65M1.19%00.0%Unchanged
Great West Life Assurance Co33,489$7.75M0.01%−1,899−5.4%Reduced
Tudor Investment Corp Et Al33,928$7.84M0.06%−33,363−49.6%Reduced
ExodusPoint Capital Management, LP34,287$7.93M0.10%+30,808+885.5%Added
Munro Partners34,399$7.95M0.25%−4,403−11.3%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.34,414$7.96M0.02%−18,076−34.4%Reduced
Cubist Systematic Strategies, LLC35,949$8.31M0.09%−20,993−36.9%Reduced
SEI Investments Co37,493$8.67M0.01%−4,480−10.7%Reduced
Gotham Asset Management, LLC38,621$8.93M0.05%+2,437+6.7%Added
Dana Investment Advisors, Inc.38,709$8.95M0.30%−871−2.2%Reduced
Bank of Montreal39,014$9.02M0.00%−251−0.6%Reduced
Manufacturers Life Insurance Company, The39,497$9.13M0.01%−2,014−4.9%Reduced
Schroder Investment Management Group40,807$9.43M0.01%+6,365+18.5%Added
Tectonic Advisors LLC41,921$9.69M0.56%+3,226+8.3%Added
Danica Pension, Livsforsikringsaktieselskab41,930$9.69M0.16%+13,150+45.7%Added
STRS Ohio42,059$9.72M0.04%−116,804−73.5%Reduced
Lansforsakringar Fondforvaltning AB (publ)42,720$9.88M0.06%−48,151−53.0%Reduced
UBS Oconnor LLC43,000$9.94M0.27%+43,000New
Boothbay Fund Management, LLC43,651$10.1M0.32%−7,575−14.8%Reduced
Mutual of America Capital Management LLC43,869$10.1M0.11%−2,000−4.4%Reduced
AXA S.A.44,554$10.3M0.03%−481−1.1%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)45,087$10.4M0.03%−1,259−2.7%Reduced
UniSuper Management Pty Ltd45,325$10.5M0.07%+36,280+401.1%Added
Susquehanna Portfolio Strategies, LLC46,790$10.8M0.24%+46,790New
California State Teachers Retirement System47,408$11.0M0.01%00.0%Unchanged
Williams Jones Wealth Management, LLC.49,062$11.3M0.14%−6,466−11.6%Reduced
Segall Bryant & Hamill, LLC49,853$11.5M0.16%−7,359−12.9%Reduced
State Board of Administration of Florida Retirement System49,874$11.5M0.02%+610+1.2%Added
Lombard Odier Asset Management (Europe) Ltd50,319$11.6M0.83%−6,182−10.9%Reduced
Candriam Luxembourg S.C.A.50,500$11.7M0.07%−59,420−54.1%Reduced
C WorldWide Group Holding A/S50,636$11.7M0.16%+6,792+15.5%Added
Two Sigma Advisers, LP53,200$12.3M0.03%+12,000+29.1%Added
State of Alaska, Department of Revenue53,692$12.4M0.13%−280−0.5%Reduced
Wells Fargo & Company54,812$12.7M0.00%−5,609−9.3%Reduced
Mediolanum International Funds Ltd56,349$13.0M0.16%+25,426+82.2%Added
Ameriprise Financial Inc56,471$13.1M0.00%−150.0%Reduced
Oppenheimer Asset Management Inc.57,850$13.4M0.15%+6,613+12.9%Added
New York State Teachers Retirement System58,357$13.5M0.03%−100−0.2%Reduced
Edgestream Partners, L.P.58,706$13.6M0.38%+48,273+462.7%Added
J. Safra Sarasin Holding AG59,874$13.8M0.24%−3,802−6.0%Reduced
Needham Investment Management LLC60,906$14.1M1.12%00.0%Unchanged
Perpetual Ltd60,931$14.1M0.17%+217+0.4%Added
Alliancebernstein L.P.63,795$14.7M0.00%−995−1.5%Reduced
Charter Oak Advisors LP64,586$14.9M9.18%00.0%Unchanged
Thornburg Investment Management Inc65,029$15.0M0.19%−5,483−7.8%Reduced
Goldman Sachs Group Inc65,190$15.1M0.00%+10,613+19.4%Added
Stifel Financial Corp67,439$15.6M0.02%−331−0.5%Reduced
Rockefeller Capital Management L.P.69,038$16.0M0.04%−1,401−2.0%Reduced
Sirios Capital Management L P69,188$16.0M2.32%+8,779+14.5%Added
Millennium Management LLC69,617$16.1M0.01%−293,275−80.8%Reduced
Envestnet Asset Management Inc70,735$16.1M0.00%−51−0.1%Reduced
Border to Coast Pensions Partnership Ltd70,000$16.2M0.30%−5,000−6.7%Reduced
Covea Finance70,487$16.3M0.61%+30,987+78.4%Added
Toroso Investments, LLC73,701$17.0M0.11%−1,621−2.2%Reduced
Comerica Bank74,377$17.2M0.07%+57,148+331.7%Added
State of Wisconsin Investment Board76,167$17.6M0.04%−2,765−3.5%Reduced
Rivermont Capital Management LP80,743$18.7M5.95%−23,246−22.4%Reduced
Thrivent Financial for Lutherans82,262$19.0M0.04%−9,413−10.3%Reduced
Nuveen, LLC82,753$19.1M0.01%−24,686−23.0%Reduced
New York State Common Retirement Fund84,449$19.5M0.03%+5,518+7.0%Added
Asset Management One Co.,Ltd.85,959$19.9M0.06%−15,458−15.2%Reduced
Picton Mahoney Asset Management86,186$19.9M0.28%+11,752+15.8%Added
Cresset Asset Management, LLC88,260$20.4M0.10%−632−0.7%Reduced
Allspring Global Investments Holdings, LLC90,158$20.7M0.03%−240.0%Reduced
Legal & General Group Plc89,620$20.7M0.01%+999+1.1%Added
SG Capital Management LLC89,771$20.8M1.76%+89,771New
Fort Washington Investment Advisors Inc91,407$21.1M0.12%−18,018−16.5%Reduced