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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, Q1 2026

Institutional positions in Clean Harbors Inc as of Mar 31, 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
626
+66 vs. Q4 2025
Shares held
49.3M
+3.03M (+6.5%) vs. Q4 2025
Total value
$14.1B
+$3.28B (+30.2%) vs. Q4 2025
New holders
115
211 more added
Sold out
49
197 more reduced

8 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2026: 626 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 heldQ1 2026: $14.1B
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, Q1 2026

Shares, value and share of portfolio for each institution holding Clean Harbors Inc; share changes are against Q4 2025.

Institutions holding CLH in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.4,802,492$1.38B0.02%+201,106+4.4%Added
Wellington Management Group LLP3,577,034$1.03B0.19%−1,605,504−31.0%Reduced
Janus Henderson Group PLC2,355,394$675.4M0.32%−20,694−0.9%Reduced
Vanguard Capital Management LLC2,169,364$622.0M0.02%+2,169,364New
FMR LLC2,101,179$602.5M0.03%+1,729,033+464.6%Added
Vanguard Portfolio Management LLC1,962,951$562.8M0.03%+1,962,951New
Lone Pine Capital LLCSuperinvestorLone Pine Capital1,754,950$503.2M4.01%+376,825+27.3%Added
State Street Corp1,537,297$440.8M0.02%+34,201+2.3%Added
D1 Capital Partners L.P.SuperinvestorD1 Capital Partners1,338,281$383.7M3.42%−1,443,601−51.9%Reduced
Pictet Asset Management Holding SA1,242,142$356.1M0.38%−643,588−34.1%Reduced
Clearbridge Investments, LLC1,202,777$344.9M0.30%−126,649−9.5%Reduced
Select Equity Group, L.P.1,131,602$324.5M1.73%+282,103+33.2%Added
Durable Capital Partners LP1,050,973$301.3M3.10%+216,210+25.9%Added
Geode Capital Management, LLC945,892$271.3M0.02%+28,113+3.1%Added
Bessemer Group Inc932,027$267.2M0.42%+16,747+1.8%Added
Snyder Capital Management L P929,327$266.5M5.17%−220,861−19.2%Reduced
Goldman Sachs Group Inc929,077$266.4M0.04%+669,618+258.1%Added
First Trust Advisors LP778,441$223.2M0.16%+70,447+10.0%Added
Two Sigma Investments, LP724,028$207.6M0.17%+231,242+46.9%Added
Dimensional Fund Advisors LP608,709$174.5M0.04%−10,903−1.8%Reduced
Nordea Investment Management AB568,408$159.3M0.15%−472,186−45.4%Reduced
UBS Asset Management Americas Inc517,561$148.4M0.03%−77,904−13.1%Reduced
FIL Ltd509,679$146.1M0.11%+156,989+44.5%Added
T. Rowe Price Investment Management, Inc.477,287$136.9M0.09%+443,206+1,300.4%Added
Charles Schwab Investment Management Inc474,647$136.1M0.02%−2,793−0.6%Reduced
Northern Trust Corp448,670$128.6M0.02%−8,130−1.8%Reduced
William Blair Investment Management, LLC443,098$127.0M0.42%+103,747+30.6%Added
Invesco Ltd.421,460$120.8M0.01%+60,910+16.9%Added
Vaughan Nelson Investment Management, L.P.386,540$110.8M1.11%+15,665+4.2%Added
Bank of New York Mellon Corp382,228$109.6M0.02%−16,232−4.1%Reduced
Quantinno Capital Management LP380,945$109.2M0.18%+50,702+15.4%Added
Davenport & Co LLC342,582$98.2M0.54%−80,487−19.0%Reduced
Bank of America Corp311,907$89.4M0.01%−99,157−24.1%Reduced
Vanguard Fiduciary Trust Co309,653$88.8M0.02%+309,653New
Morgan Stanley290,329$83.2M0.01%+26,087+9.9%Added
Westfield Capital Management Co LP261,092$74.9M0.31%+15,498+6.3%Added
M.D. Sass Investors Services, Inc.252,540$72.4M5.49%−81,658−24.4%Reduced
Silvercrest Asset Management Group LLC240,299$68.9M0.50%−9,762−3.9%Reduced
UBS Group AG226,301$64.9M0.01%−329,901−59.3%Reduced
JPMorgan Chase & Co214,132$59.9M0.00%+14,642+7.3%Added
12th Street Asset Management Company, LLC204,716$58.7M9.60%−5,523−2.6%Reduced
Neuberger Berman Group LLC194,039$55.6M0.04%+19,623+11.3%Added
DekaBank Deutsche Girozentrale180,000$51.7M0.09%00.0%Unchanged
AQR Capital Management LLC180,668$50.6M0.02%+159,384+748.8%Added
Raymond James Financial Inc173,700$49.8M0.02%+11,043+6.8%Added
Federated Hermes, Inc.169,284$48.5M0.08%+4,481+2.7%Added
Oberweis Asset Management Inc144,355$41.4M1.22%+27,485+23.5%Added
Leeward Investments, LLC - MA140,651$40.3M1.99%−4,323−3.0%Reduced
Natixis Advisors, L.P.140,485$40.3M0.06%−4,355−3.0%Reduced
Vontobel Holding Ltd.138,096$39.6M0.14%−23,143−14.4%Reduced
Grantham, Mayo, Van Otterloo & Co. LLC135,593$38.9M0.10%+26,772+24.6%Added
Gotham Asset Management, LLC134,631$38.6M0.12%+22,337+19.9%Added
Rhumbline Advisers133,743$38.3M0.03%+3,567+2.7%Added
Jane Street Group, LLC132,797$38.1M0.04%+123,441+1,319.4%Added
Mirova130,675$37.5M1.52%+130,675New
Hood River Capital Management LLC124,275$35.6M0.36%−2,490−2.0%Reduced
Impax Asset Management Group plc122,986$35.3M0.25%−25,619−17.2%Reduced
Principal Financial Group Inc112,106$32.1M0.02%+4,097+3.8%Added
Swedbank AB110,000$31.5M0.03%−40,000−26.7%Reduced
Trinity Street Asset Management LLP109,391$31.4M2.15%−7,786−6.6%Reduced
Amundi106,516$30.5M0.01%−80,885−43.2%Reduced
Spirepoint Private Client, LLC106,046$30.4M2.89%+194+0.2%Added
California Public Employees Retirement System104,730$30.0M0.02%−3,172−2.9%Reduced
Royal Bank of Canada104,313$29.9M0.01%−10,037−8.8%Reduced
Swiss National Bank100,400$28.8M0.02%−100−0.1%Reduced
Telemark Asset Management, LLC100,000$28.7M2.65%+20,000+25.0%Added
OP Asset Management Ltd99,201$28.4M0.29%+60,111+153.8%Added
Visualize Group LP96,300$27.6M11.37%+96,300New
Handelsbanken Fonder AB93,344$26.8M0.09%−12,272−11.6%Reduced
Retirement Systems of Alabama92,124$26.4M0.09%+1,296+1.4%Added
Allspring Global Investments Holdings, LLC90,265$26.2M0.04%+140.0%Added
Cresset Asset Management, LLC88,224$25.3M0.11%−16,558−15.8%Reduced
Bank of Montreal88,052$25.2M0.01%−5,666−6.0%Reduced
Jupiter Asset Management Ltd82,925$23.8M0.13%−24,359−22.7%Reduced
Loomis Sayles & Co L P74,783$21.4M0.03%−1,068−1.4%Reduced
Victory Capital Management Inc73,660$21.1M0.01%−55,641−43.0%Reduced
Thrivent Financial for Lutherans72,103$20.7M0.04%+19,013+35.8%Added
Toroso Investments, LLC71,946$20.6M0.06%+12,425+20.9%Added
Fort Washington Investment Advisors Inc71,277$20.4M0.11%−20,449−22.3%Reduced
Nuveen, LLC68,966$19.8M0.01%−12,141−15.0%Reduced
Needham Investment Management LLC68,856$19.7M1.01%00.0%Unchanged
Legal & General Group Plc68,746$19.7M0.00%−5,832−7.8%Reduced
Millennium Management LLC63,880$18.3M0.01%+20,288+46.5%Added
Charter Oak Advisors LP63,214$18.1M10.99%+2,528+4.2%Added
Asset Management One Co.,Ltd.62,011$17.8M0.05%−3,729−5.7%Reduced
Jones Financial Companies LLLP62,587$17.5M0.01%+61,571+6,060.1%Added
Perpetual Ltd60,786$17.4M0.27%+932+1.6%Added
State of Wisconsin Investment Board60,636$17.4M0.04%−2,377−3.8%Reduced
Citigroup Inc60,506$17.3M0.01%−16,713−21.6%Reduced
Credit Agricole S A60,444$17.3M0.06%+49,547+454.7%Added
Envestnet Asset Management Inc60,170$17.3M0.00%−1,340−2.2%Reduced
California State Teachers Retirement System59,158$17.0M0.02%+10,858+22.5%Added
Alliancebernstein L.P.70,426$16.5M0.01%+6,574+10.3%Added
Picton Mahoney Asset Management57,420$16.5M0.17%−74−0.1%Reduced
Sirios Capital Management L P57,213$16.4M1.99%−20,767−26.6%Reduced
Point72 Asset Management, L.P.56,597$16.2M0.03%−182,112−76.3%Reduced
New York State Teachers Retirement System56,124$16.1M0.03%−1,633−2.8%Reduced
Fuller & Thaler Asset Management, Inc.54,253$15.6M0.05%−26,538−32.8%Reduced
GCM Grosvenor Holdings, LLC53,804$15.4M1.71%−19,829−26.9%Reduced
State of Alaska, Department of Revenue53,145$15.2M0.16%+135+0.3%Added