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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 2026

Institutional positions in Clean Harbors Inc as of Jun 30, 2026. 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
663
+45 vs. Q1 2026
Shares held
49.4M
+2.48M (+5.3%) vs. Q1 2026
Total value
$14.8B
+$1.31B (+9.8%) vs. Q1 2026
New holders
100
205 more added
Sold out
55
251 more reduced

8 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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 2026: 663 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 2026: $14.8B
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 2026

Shares, value and share of portfolio for each institution holding Clean Harbors Inc; share changes are against Q1 2026.

Institutions holding CLH in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Lombard Odier Asset Management (Europe) Ltd14,600$4.36M0.19%−1,186−7.5%Reduced
Louisiana State Employees Retirement System14,500$4.33M0.06%−100−0.7%Reduced
Yousif Capital Management, LLC14,210$4.25M0.05%−1,075−7.0%Reduced
Scotia Capital Inc.14,056$4.20M0.02%−217−1.5%Reduced
Investors Towarzystwo Funduszy Inwestycyjnych Spolka Akcyjna14,032$4.19M1.40%−3,075−18.0%Reduced
Arizona State Retirement System13,870$4.14M0.02%−80−0.6%Reduced
Summit Trail Advisors, LLC13,629$4.07M0.05%+850+6.7%Added
Montanaro Asset Management Ltd13,500$4.03M1.27%+9,900+275.0%Added
Fifth Third Bancorp13,284$3.97M0.01%−1,487−10.1%Reduced
Panagora Asset Management Inc13,069$3.90M0.01%+11,414+689.7%Added
Vanguard Investments Australia, Ltd.12,963$3.87M0.01%+174+1.4%Added
Oak Thistle LLC12,748$3.81M0.37%−1,958−13.3%Reduced
Bridges Investment Management Inc12,120$3.62M0.04%+52+0.4%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys11,892$3.55M0.02%−692−5.5%Reduced
Cerity Partners LLC11,805$3.53M0.00%+1,361+13.0%Added
State of Michigan Retirement System11,607$3.47M0.02%−500−4.1%Reduced
Aquatic Capital Management LLC11,370$3.40M0.12%+9,897+671.9%Added
Northwestern Mutual Investment Management Company, LLC11,174$3.34M0.04%−79−0.7%Reduced
Colony Group, LLC11,124$3.32M0.00%−3,122−21.9%Reduced
TD Asset Management Inc11,064$3.31M0.00%−1,734−13.5%Reduced
Edentree Asset Management Ltd11,002$3.28M1.00%00.0%Unchanged
Deroy & Devereaux Private Investment Counsel Inc10,840$3.24M0.14%−85−0.8%Reduced
M&T Bank Corp10,830$3.24M0.01%−415−3.7%Reduced
Y-Intercept (Hong Kong) Ltd10,690$3.19M0.06%+10,690New
Gradient Investments LLC10,687$3.19M0.04%+513+5.0%Added
JustInvest LLC10,581$3.16M0.03%−574−5.1%Reduced
FORA Capital, LLC10,374$3.10M0.21%+9,125+730.6%Added
New Mexico Educational Retirement Board10,300$3.08M0.08%00.0%Unchanged
Creative Planning10,270$3.07M0.00%+3,042+42.1%Added
Oregon Public Employees Retirement Fund10,253$3.06M0.03%−63−0.6%Reduced
Jain Global LLC10,245$3.06M0.04%+10,245New
K.J. Harrison & Partners Inc10,225$3.05M0.43%−2,070−16.8%Reduced
Advisors Asset Management, Inc.10,154$3.03M0.05%−1,826−15.2%Reduced
Wealth Enhancement Advisory Services, LLC9,924$3.02M0.01%+5,298+114.5%Added
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main10,101$3.02M0.00%−10,449−50.8%Reduced
SMA Capital LLC10,000$2.99M1.25%+10,000New
Agf Management Ltd9,998$2.99M0.01%−3,093−23.6%Reduced
EverSource Wealth Advisors, LLC9,546$2.85M0.10%−402−4.0%Reduced
Robeco Schweiz AG9,500$2.84M0.05%00.0%Unchanged
Algert Global LLC9,250$2.76M0.03%+9,250New
Vestmark Advisory Solutions, Inc.9,233$2.76M0.03%+2,549+38.1%Added
Sandler Capital Management8,985$2.68M1.59%−2,042−18.5%Reduced
Union Bancaire Privee, UBP SA8,812$2.64M0.04%−324−3.5%Reduced
Winton Group Ltd8,760$2.62M0.08%+8,760New
Colonial Trust Advisors8,691$2.60M0.18%−437−4.8%Reduced
Marshall Wace, LLP8,667$2.59M0.00%−35,810−80.5%Reduced
Groupe la Francaise8,588$2.57M0.03%−1,712−16.6%Reduced
Teacher Retirement System of Texas8,562$2.56M0.01%+772+9.9%Added
Shelton Capital Management7,709$2.30M0.04%00.0%Unchanged
Captrust Financial Advisors7,636$2.28M0.00%+1,059+16.1%Added
HighTower Advisors, LLC7,518$2.25M0.00%−898−10.7%Reduced
Amundi7,436$2.22M0.00%−99,080−93.0%Reduced
Dana Investment Advisors, Inc.7,273$2.17M0.06%−270−3.6%Reduced
Maridea Wealth Management LLC7,065$2.11M0.23%+207+3.0%Added
Quantbot Technologies LP6,997$2.09M0.08%+6,997New
Xponance, Inc.6,985$2.09M0.01%+853+13.9%Added
The PNC Financial Services Group, Inc.6,955$2.08M0.00%+229+3.4%Added
CAPROCK Group, Inc.6,854$2.05M0.04%−644−8.6%Reduced
TimesSquare Capital Management, LLC6,796$2.03M0.03%00.0%Unchanged
Daiwa Securities Group Inc.6,780$2.03M0.00%−2,509−27.0%Reduced
Fulcrum Asset Management LLP6,569$1.97M0.20%−8,986−57.8%Reduced
Trexquant Investment LP6,478$1.94M0.01%+6,478New
Congress Park Capital LLC6,452$1.93M0.52%−645−9.1%Reduced
Numerai GP LLC6,424$1.92M0.16%+287+4.7%Added
Campbell & CO Investment Adviser LLC6,421$1.92M0.10%+2,452+61.8%Added
Southeast Asset Advisors Inc.6,343$1.89M0.19%−2,416−27.6%Reduced
Headlands Technologies LLC6,134$1.83M0.19%+3,274+114.5%Added
Bridgefront Capital, LLC6,091$1.82M0.48%+6,091New
Voya Investment Management LLC6,062$1.81M0.00%+511+9.2%Added
XTX Topco Ltd6,039$1.80M0.02%+2,143+55.0%Added
Allstate Corp5,990$1.79M0.02%+98+1.7%Added
South Dakota Investment Council5,989$1.79M0.03%+160+2.7%Added
Gallo Partners, LP5,968$1.78M3.95%−4,081−40.6%Reduced
Verition Fund Management LLC5,949$1.78M0.01%+3,621+155.5%Added
Coyle Financial Counsel LLC5,865$1.75M0.32%−1,761−23.1%Reduced
Lisanti Capital Growth, LLC5,745$1.72M0.38%+2,045+55.3%Added
Truvestments Capital LLC5,707$1.70M0.25%+319+5.9%Added
New Age Alpha Advisors, LLC5,653$1.69M0.07%−96−1.7%Reduced
Federation des caisses Desjardins du Quebec5,651$1.69M0.01%+504+9.8%Added
Pacer Advisors, Inc.5,583$1.67M0.00%−381−6.4%Reduced
Wiley Bros.-Aintree Capital, LLC5,325$1.59M0.01%−1,014−16.0%Reduced
Longaeva Partners L.P.5,261$1.57M0.05%+5,261New
Truist Financial Corp5,249$1.57M0.00%+230+4.6%Added
Jefferies Financial Group Inc.5,185$1.55M0.01%+231+4.7%Added
Advisor Group Holdings, Inc.5,132$1.53M0.00%−116−2.2%Reduced
NVWM, LLC5,128$1.53M0.31%−289−5.3%Reduced
Public Employees Retirement Association of Colorado4,997$1.49M0.01%−84−1.7%Reduced
Machina Capital S.A.S.4,990$1.49M0.24%+4,990New
Fox Run Management, L.L.C.4,816$1.44M0.24%+1,659+52.5%Added
Nisa Investment Advisors, LLC4,812$1.44M0.00%+639+15.3%Added
Pathstone Holdings, LLC4,800$1.43M0.00%+241+5.3%Added
Inscription Capital, LLC4,751$1.42M0.13%−141−2.9%Reduced
Baird Financial Group, Inc.4,705$1.41M0.00%+229+5.1%Added
LMCG Investments, LLC4,580$1.37M0.07%−180−3.8%Reduced
O'Shaughnessy Asset Management, LLC4,547$1.36M0.01%−301−6.2%Reduced
Concurrent Investment Advisors, LLC4,540$1.36M0.01%+89+2.0%Added
Knollwood Investment Advisory, LLC4,500$1.34M0.12%00.0%Unchanged
Benjamin Edwards Inc4,442$1.33M0.01%−3,002−40.3%Reduced
Robeco Institutional Asset Management B.V.4,414$1.32M0.00%−252−5.4%Reduced
Ethic Inc.4,343$1.30M0.02%+1,002+30.0%Added