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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 2021

Institutional positions in Clean Harbors Inc as of Jun 30, 2021. 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
286
−2 vs. Q1 2021
Shares held
48.2M
+523.0K (+1.1%) vs. Q1 2021
Total value
$4.48B
+$473.5M (+11.8%) vs. Q1 2021
New holders
30
100 more added
Sold out
32
108 more reduced

1 institution that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2021: 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 2021: 286 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 2021: $4.48B
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 2021

Shares, value and share of portfolio for each institution holding Clean Harbors Inc; share changes are against Q1 2021.

Institutions holding CLH in Q2 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Nomura Holdings Inc0$00.00%−6,000−100.0%Sold out
CIBC World Markets Corp0$00.00%−5,413−100.0%Sold out
Fulcrum Asset Management LLP0$00.00%–Sold out
Wealthspire Advisors, LLC0$00.00%−3,884−100.0%Sold out
Virtu Financial LLC0$00.00%−3,844−100.0%Sold out
Susquehanna International Group, LLP0$00.00%−3,754−100.0%Sold out
Centiva Capital, LP0$00.00%−3,699−100.0%Sold out
Mirabella Financial Services LLP0$00.00%−3,497−100.0%Sold out
Jackson Creek Investment Advisors LLC0$00.00%−3,229−100.0%Sold out
D. E. Shaw & Co., Inc.0$00.00%−3,096−100.0%Sold out
Sowell Financial Services LLC0$00.00%−2,518−100.0%Sold out
Guggenheim Capital LLC0$00.00%−2,472−100.0%Sold out
XTX Topco Ltd0$00.00%−2,436−100.0%Sold out
Simplex Trading, LLC0$00.00%−474−100.0%Sold out
First Bank & Trust0$00.00%−371−100.0%Sold out
FORA Capital, LLC0$00.00%−221−100.0%Sold out
International Assets Investment Management, LLC0$00.00%−47−100.0%Sold out
Ameritas Investment Company, LLC0$00.00%−26−100.0%Sold out
Waddell & Reed Financial Inc––––Not filed