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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
Syon Capital LLC4,226$990.9K0.05%+2,965+235.1%Added
Cambridge Investment Research Advisors, Inc.4,418$1.04M0.00%−415−8.6%Reduced
Pathstone Holdings, LLC4,440$1.04M0.00%−192−4.1%Reduced
Optas, LLC4,488$1.05M0.16%+4,488New
Baird Financial Group, Inc.4,497$1.05M0.00%+62+1.4%Added
Knollwood Investment Advisory, LLC4,500$1.06M0.10%00.0%Unchanged
Intesa Sanpaolo Wealth Management4,515$1.06M0.22%+4,515New
New York Life Investment Management LLC4,543$1.07M0.01%+4,543New
Advisor Group Holdings, Inc.4,553$1.07M0.00%+365+8.7%Added
AXA S.A.4,576$1.07M0.51%−788−14.7%Reduced
Commonwealth Equity Services, LLC4,631$1.09M0.00%+1,106+31.4%Added
Teacher Retirement System of Texas4,699$1.10M0.00%−5,407−53.5%Reduced
Concurrent Investment Advisors, LLC4,700$1.10M0.01%+3,181+209.4%Added
Franklin Resources Inc4,709$1.10M0.00%−138,082−96.7%Reduced
Xponance, Inc.4,724$1.11M0.01%−1,439−23.3%Reduced
Aaron Wealth Advisors4,853$1.14M0.06%+3,320+216.6%Added
Ashton Thomas Private Wealth, LLC4,952$1.16M0.03%+335+7.3%Added
Settian Capital LP5,000$1.17M0.78%00.0%Unchanged
Robeco Institutional Asset Management B.V.5,039$1.18M0.00%−2,223−30.6%Reduced
Public Employees Retirement Association of Colorado5,081$1.19M0.00%00.0%Unchanged
Truvestments Capital LLC5,214$1.22M0.22%+443+9.3%Added
LMCG Investments, LLC5,433$1.27M0.07%−190−3.4%Reduced
NVWM, LLC5,453$1.28M0.28%−105−1.9%Reduced
Maridea Wealth Management LLC5,746$1.35M0.20%+1,608+38.9%Added
Inscription Capital, LLC5,780$1.36M0.14%+2,435+72.8%Added
BNP Paribas Arbitrage, SA5,858$1.37M0.00%−1,187−16.8%Reduced
New Age Alpha Advisors, LLC5,876$1.38M0.06%−4,690−44.4%Reduced
Creative Planning5,935$1.39M0.00%−119−2.0%Reduced
Virginia Retirement Systems Et Al5,960$1.40M0.01%−7,100−54.4%Reduced
Captrust Financial Advisors5,989$1.40M0.00%−218−3.5%Reduced
Pacer Advisors, Inc.6,014$1.41M0.00%−636−9.6%Reduced
The PNC Financial Services Group, Inc.6,025$1.41M0.00%−78−1.3%Reduced
Wealth Enhancement Advisory Services, LLC5,840$1.43M0.00%+1,457+33.2%Added
Federation des caisses Desjardins du Quebec6,230$1.46M0.01%+461+8.0%Added
HighVista Strategies LLC6,243$1.46M0.38%−2,863−31.4%Reduced
South Dakota Investment Council6,329$1.48M0.03%−1,121−15.0%Reduced
Truist Financial Corp6,577$1.54M0.00%+116+1.8%Added
Fulcrum Asset Management LLP6,569$1.56M0.43%00.0%Unchanged
TimesSquare Capital Management, LLC6,770$1.59M0.02%00.0%Unchanged
Intech Investment Management LLC6,779$1.59M0.01%−5,091−42.9%Reduced
Okabena Investment Services Inc6,785$1.59M0.30%+545+8.7%Added
Aventail Capital Group, LP6,841$1.60M0.09%−18,839−73.4%Reduced
Wiley Bros.-Aintree Capital, LLC7,043$1.63M0.01%−543−7.2%Reduced
Southeast Asset Advisors Inc.6,964$1.63M0.16%+898+14.8%Added
Voya Investment Management LLC7,000$1.64M0.00%−8,216−54.0%Reduced
Congress Park Capital LLC7,102$1.67M0.50%−740−9.4%Reduced
Benjamin Edwards Inc7,242$1.70M0.02%+23+0.3%Added
Dana Investment Advisors, Inc.7,680$1.80M0.05%+142+1.9%Added
Shelton Capital Management7,765$1.82M0.04%−129−1.6%Reduced
HighTower Advisors, LLC7,906$1.85M0.00%+1,228+18.4%Added
Susquehanna Portfolio Strategies, LLC8,018$1.88M0.03%−36,792−82.1%Reduced
Cerity Partners LLC8,172$1.92M0.00%+264+3.3%Added
Coyle Financial Counsel LLC8,236$1.93M0.41%−1,337−14.0%Reduced
CAPROCK Group, Inc.8,520$2.00M0.04%+7,436+686.0%Added
Fideuram - Intesa Sanpaolo Private Banking S.P.A.8,745$2.05M0.07%+8,745New
Russell Investments Group, Ltd.8,958$2.10M0.00%+566+6.7%Added
Colonial Trust Advisors9,188$2.15M0.16%−222−2.4%Reduced
Jane Street Group, LLC9,356$2.19M0.00%−30,277−76.4%Reduced
Oak Thistle LLC9,509$2.23M0.31%+5,778+154.9%Added
Vestmark Advisory Solutions, Inc.9,662$2.27M0.03%+2,334+31.9%Added
Advisors Asset Management, Inc.9,749$2.29M0.04%−3,056−23.9%Reduced
EverSource Wealth Advisors, LLC9,887$2.32M0.09%−340−3.3%Reduced
Oregon Public Employees Retirement Fund10,036$2.35M0.03%−140−1.4%Reduced
JustInvest LLC10,238$2.40M0.02%+778+8.2%Added
New Mexico Educational Retirement Board10,300$2.42M0.07%00.0%Unchanged
Bridges Investment Management Inc10,416$2.44M0.03%+516+5.2%Added
Mercer Global Advisors Inc10,521$2.47M0.00%+3,037+40.6%Added
Alphadyne Asset Management LP10,683$2.50M0.25%+10,683New
Lansing Management LP10,760$2.52M1.68%+10,760New
Groupe la Francaise10,780$2.53M0.04%00.0%Unchanged
Deroy & Devereaux Private Investment Counsel Inc10,875$2.55M0.12%+10,875New
Credit Agricole S A10,897$2.56M0.01%+10,897New
Edentree Asset Management Ltd11,002$2.58M0.79%00.0%Unchanged
Summit Trail Advisors, LLC11,102$2.60M0.05%+7,611+218.0%Added
Northwestern Mutual Investment Management Company, LLC11,237$2.63M0.03%00.0%Unchanged
State of Michigan Retirement System11,907$2.79M0.01%−100−0.8%Reduced
Colony Group, LLC12,291$2.88M0.00%+10,822+736.7%Added
Shay Capital LLC12,523$2.94M0.47%+12,523New
Commonwealth of Pennsylvania Public School Empls Retrmt Sys12,569$2.95M0.01%−370−2.9%Reduced
CI Private Wealth, LLC12,682$2.97M0.00%+7,667+152.9%Added
K.J. Harrison & Partners Inc13,095$3.07M0.41%−2,200−14.4%Reduced
Holocene Advisors, LP13,598$3.19M0.01%−3,743−21.6%Reduced
Louisiana State Employees Retirement System13,900$3.26M0.06%−100−0.7%Reduced
Arizona State Retirement System14,072$3.30M0.02%−991−6.6%Reduced
Scotia Capital Inc.14,382$3.37M0.01%+20+0.1%Added
M&T Bank Corp14,614$3.43M0.01%+3,463+31.1%Added
Pacific Capital Partners Ltd14,750$3.46M3.67%−1,000−6.3%Reduced
Comerica Bank14,937$3.50M0.01%−79,255−84.1%Reduced
PKO Investment Management Joint-Stock Co15,000$3.52M0.28%00.0%Unchanged
State of New Jersey Common Pension Fund D15,244$3.57M0.01%00.0%Unchanged
Public Employees Retirement System of Ohio15,247$3.58M0.01%−577−3.6%Reduced
Verition Fund Management LLC15,428$3.62M0.02%−20,130−56.6%Reduced
Union Bancaire Privee, UBP SA15,137$3.64M0.06%−1,584−9.5%Reduced
Schonfeld Strategic Advisors LLC16,000$3.75M0.02%+16,000New
Prelude Capital Management, LLC16,114$3.78M0.28%+3,054+23.4%Added
Bell Asset Management Ltd16,511$3.88M1.04%−3,374−17.0%Reduced
Ameritas Investment Partners, Inc.16,735$3.92M0.12%−895−5.1%Reduced
KLP Kapitalforvaltning AS16,800$3.94M0.02%+1,100+7.0%Added
Cetera Investment Advisers16,823$3.94M0.00%−85−0.5%Reduced
Van Eck Associates Corp17,049$4.00M0.00%−301−1.7%Reduced