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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, Q4 2025

Institutional positions in Clean Harbors Inc as of Dec 31, 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
568
+7 vs. Q3 2025
Shares held
51.5M
+1.95M (+3.9%) vs. Q3 2025
Total value
$12.1B
+$571.8M (+5.0%) vs. Q3 2025
New holders
92
157 more added
Sold out
85
224 more reduced

8 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2025: 568 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 heldQ4 2025: $12.1B
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, Q4 2025

Shares, value and share of portfolio for each institution holding Clean Harbors Inc; share changes are against Q3 2025.

Institutions holding CLH in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Yousif Capital Management, LLC16,019$4.11M0.05%−335−2.0%Reduced
American Century Companies Inc18,283$4.29M0.00%−204,774−91.8%Reduced
Investors Towarzystwo Funduszy Inwestycyjnych Spolka Akcyjna18,407$4.32M1.63%+750+4.2%Added
State of Tennessee, Treasury Department16,935$4.40M0.01%−3,489−17.1%Reduced
D L Carlson Investment Group Inc18,991$4.45M0.75%+18,991New
Hilton Capital Management, LLC19,247$4.51M0.34%+1,907+11.0%Added
Mariner, LLC19,829$4.65M0.01%−12,879−39.4%Reduced
Brant Point Investment Management LLC20,145$4.72M1.14%−2,079−9.4%Reduced
LPL Financial LLC20,280$4.76M0.00%−2,119−9.5%Reduced
Teachers Retirement System of the State of Kentucky20,440$4.79M0.04%−952−4.5%Reduced
Amica Mutual Insurance Co20,820$4.88M0.42%00.0%Unchanged
Treasurer of the State of North Carolina21,220$4.98M0.02%−1,553−6.8%Reduced
AQR Capital Management LLC21,284$4.99M0.00%−12,080−36.2%Reduced
Police & Firemen's Retirement System of New Jersey21,397$5.02M0.04%−1,086−4.8%Reduced
STRS Ohio21,413$5.02M0.02%−21,998−50.7%Reduced
Deutsche Bank AG21,635$5.07M0.00%+192+0.9%Added
Amalgamated Bank22,289$5.23M0.04%−805−3.5%Reduced
Pillsbury Lake Capital LLC22,553$5.29M2.16%+22,553New
Mountain Pacific Investment Advisers Inc23,658$5.55M0.90%+1,104+4.9%Added
J.P. Marvel Investment Advisors, LLC24,125$5.66M0.79%00.0%Unchanged
MetLife Investment Management24,550$5.76M0.03%−1,367−5.3%Reduced
New York State Common Retirement Fund24,792$5.81M0.01%−60,428−70.9%Reduced
Bullseye Asset Management LLC25,722$6.03M3.25%00.0%Unchanged
Cooper Investors Pty Ltd25,955$6.09M2.02%−1,567−5.7%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)27,399$6.42M0.01%−18,108−39.8%Reduced
Ecofi Investissements SA27,600$6.47M4.47%+27,600New
UniSuper Management Pty Ltd27,954$6.55M0.04%−23,709−45.9%Reduced
Brown Advisory Inc28,381$6.65M0.01%+766+2.8%Added
Universal- Beteiligungs- und Servicegesellschaft mbH28,944$6.79M0.01%+2,485+9.4%Added
Atria Investments LLC29,928$7.02M0.08%+1,001+3.5%Added
Candriam Luxembourg S.C.A.30,711$7.20M0.04%−38,156−55.4%Reduced
Axon Capital LP31,000$7.27M8.74%+31,000New
Atom Investors LP31,001$7.27M0.58%+31,001New
Great West Life Assurance Co31,085$7.29M0.01%−2,801−8.3%Reduced
Mutual of America Capital Management LLC31,196$7.31M0.08%−10,134−24.5%Reduced
Eurizon Capital SGR S.p.A.31,994$7.50M0.02%+31,994New
SEI Investments Co32,271$7.57M0.01%−4,462−12.1%Reduced
T. Rowe Price Investment Management, Inc.34,081$7.99M0.01%+34,032+69,453.1%Added
Schroder Investment Management Group35,097$8.35M0.01%−5,491−13.5%Reduced
Manufacturers Life Insurance Company, The37,574$8.81M0.01%−918−2.4%Reduced
Daiwa Securities Group Inc.38,124$8.94M0.03%+2,612+7.4%Added
Wells Fargo & Company39,083$9.16M0.00%−14,505−27.1%Reduced
OP Asset Management Ltd39,090$9.17M0.11%−86,381−68.8%Reduced
Barclays PLC40,594$9.52M0.00%−13,297−24.7%Reduced
Ci Investments Inc.41,019$9.62M0.04%+3,682+9.9%Added
Danica Pension, Livsforsikringsaktieselskab41,930$9.83M0.14%00.0%Unchanged
Allianz Asset Management GmbH42,040$9.86M0.01%−143,315−77.3%Reduced
Millennium Management LLC43,592$10.2M0.01%+13,216+43.5%Added
State Board of Administration of Florida Retirement System43,939$10.3M0.02%−2,600−5.6%Reduced
Rivermont Capital Management LP44,262$10.4M2.47%−78,390−63.9%Reduced
Tectonic Advisors LLC45,522$10.7M0.56%+531+1.2%Added
Bayberry Capital Partners LP48,200$11.3M3.64%+48,200New
C WorldWide Group Holding A/S48,269$11.3M0.20%−2,275−4.5%Reduced
California State Teachers Retirement System48,300$11.3M0.01%+899+1.9%Added
Lombard Odier Asset Management (Europe) Ltd50,143$11.8M0.60%−26,644−34.7%Reduced
Rockefeller Capital Management L.P.50,858$11.9M0.02%−1,537−2.9%Reduced
State of Alaska, Department of Revenue53,010$12.4M0.13%−540−1.0%Reduced
Ameriprise Financial Inc53,011$12.4M0.00%−2,000−3.6%Reduced
Covea Finance53,087$12.4M0.41%−16,300−23.5%Reduced
Thrivent Financial for Lutherans53,090$12.4M0.02%−12,436−19.0%Reduced
Oppenheimer Asset Management Inc.54,299$12.7M0.16%−1,229−2.2%Reduced
La Banque Postale Asset Management SA54,355$12.7M0.15%−146,971−73.0%Reduced
J. Safra Sarasin Holding AG54,667$12.8M0.21%−5,088−8.5%Reduced
Chilton Investment Co LLC57,019$13.4M0.28%−77,274−57.5%Reduced
BNP PARIBAS ASSET MANAGEMENT Holding S.A.57,459$13.5M0.02%+28,354+97.4%Added
Picton Mahoney Asset Management57,494$13.5M0.15%−27,986−32.7%Reduced
Boothbay Fund Management, LLC57,586$13.5M0.35%−9,620−14.3%Reduced
New York State Teachers Retirement System57,757$13.5M0.03%−485−0.8%Reduced
Toroso Investments, LLC59,521$14.0M0.06%−606−1.0%Reduced
Perpetual Ltd59,854$14.0M0.20%−1,735−2.8%Reduced
Stifel Financial Corp60,013$14.1M0.01%−6,049−9.2%Reduced
Border to Coast Pensions Partnership Ltd60,000$14.1M0.25%−10,000−14.3%Reduced
Thornburg Investment Management Inc60,620$14.2M0.18%−433−0.7%Reduced
Charter Oak Advisors LP60,686$14.2M11.96%−3,900−6.0%Reduced
Envestnet Asset Management Inc61,510$14.4M0.00%−2,095−3.3%Reduced
SG Americas Securities, LLC62,621$14.7M0.02%+22,827+57.4%Added
State of Wisconsin Investment Board63,013$14.8M0.03%−17,294−21.5%Reduced
Alliancebernstein L.P.63,852$15.0M0.00%+928+1.5%Added
Marshall Wace, LLP64,581$15.1M0.01%+61,451+1,963.3%Added
Hallstatt Advisors L.P.65,101$15.3M11.37%+65,101New
Asset Management One Co.,Ltd.65,740$15.8M0.04%−20,617−23.9%Reduced
Needham Investment Management LLC68,856$16.1M1.02%+5,875+9.3%Added
Cramer Rosenthal McGlynn LLC69,318$16.3M1.05%−14,231−17.0%Reduced
GCM Grosvenor Holdings, LLC73,633$17.3M2.45%−2,067−2.7%Reduced
SG Capital Management LLC73,672$17.3M1.89%+73,672New
Legal & General Group Plc74,578$17.5M0.00%−12,816−14.7%Reduced
Price T Rowe Associates Inc75,101$17.6M0.00%−2,153−2.8%Reduced
Loomis Sayles & Co L P75,851$17.8M0.02%−47,136−38.3%Reduced
Citigroup Inc77,219$18.1M0.01%−170,933−68.9%Reduced
Sirios Capital Management L P77,980$18.3M2.28%+1,050+1.4%Added
Telemark Asset Management, LLC80,000$18.8M1.87%−30,000−27.3%Reduced
Fuller & Thaler Asset Management, Inc.80,791$18.9M0.06%−16,519−17.0%Reduced
Nuveen, LLC81,107$19.0M0.00%−720−0.9%Reduced
Nomura Asset Management International Inc.85,143$20.0M0.03%+85,143New
Munro Partners85,759$20.1M0.56%+8,755+11.4%Added
Retirement Systems of Alabama90,828$21.3M0.07%−677−0.7%Reduced
Fort Washington Investment Advisors Inc91,726$21.5M0.11%−23,061−20.1%Reduced
Allspring Global Investments Holdings, LLC90,251$22.0M0.04%+80+0.1%Added
Bank of Montreal93,718$22.0M0.01%+28,074+42.8%Added
Swiss National Bank100,500$23.6M0.01%+1,800+1.8%Added