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Who owns Clean Harbors (CLH) stock

625 funds reported Clean Harbors (CLH) shares in their latest 13F filings, worth $16.1B in all. The largest holder is BlackRock ($1.5B). Last quarter 274 funds added to their stakes and 273 cut them. Members of Congress and other officials disclosed 8 trades (2 buys, 6 sales).

Largest holders of CLH (13F)Largest holders of CLH (13F)BlackRock$1.5BVanguard Group$1.1BWellington Management Group LLP$943MFMR LLC$897MJanus Henderson Group$675MVanguard Capital Management LLC$652MVanguard Portfolio Management LLC$593MJupiter Topco LLC$478MState Street$473MD1 Capital Partners L.P.$393M

Largest holders (13F)

FundSharesValueChangeQuarter
BlackRock5,076,220$1.5Bincrease2026-06-30
Vanguard Group4,489,676$1.1Bdecrease2025-12-31
Wellington Management Group LLP3,155,233$943Mdecrease2026-06-30
FMR LLC3,002,654$897Mincrease2026-06-30
Janus Henderson Group2,355,394$675Mdecrease2026-03-31
Vanguard Capital Management LLC2,182,972$652Mincrease2026-06-30
Vanguard Portfolio Management LLC1,983,336$593Mincrease2026-06-30
Jupiter Topco LLC1,598,574$478Mbase2026-06-30
State Street1,582,004$473Mincrease2026-06-30
D1 Capital Partners L.P.1,315,501$393Mdecrease2026-06-30
Geode Capital Management, LLC1,129,240$337Mincrease2026-06-30
Clearbridge Investments, LLC1,126,744$337Mdecrease2026-06-30
First Trust Advisors LP993,170$297Mincrease2026-06-30
Snyder Capital Management L P922,182$276Mdecrease2026-06-30
Goldman Sachs Group900,225$269Mdecrease2026-06-30

Trades by Congress and other officials

DateWhoTradeAmount
2026-08-25April McClain Delaneysale$50K–$100K
2026-07-28April McClain Delaneypartial sale$1K–$15K
2026-07-27April McClain Delaneypartial sale$1K–$15K
2026-07-24April McClain Delaneypartial sale$1K–$15K
2026-05-01April McClain Delaneypartial sale$1K–$15K
2026-04-30April McClain Delaneypartial sale$1K–$15K
2026-02-23April McClain Delaneypurchase$15K–$50K
2025-12-03April McClain Delaneypurchase$1K–$15K

Clean Harbors' latest quarter

Clean Harbors, Q3 2026: revenue $1.9B (+21% year over year), operating margin 17.0%, net earnings $208M, operating cash flow $419M. The chart follows the revenue to costs, profit and cash.

Questions

Who owns the most CLH stock?

By the latest 13F filings: BlackRock ($1.5B); Vanguard Group ($1.1B); Wellington Management Group LLP ($943M); FMR LLC ($897M); Janus Henderson Group ($675M).

Has Congress traded CLH stock?

Officials disclosed 8 trades on file: 2 buys and 6 sales. The latest: April McClain Delaney, sale on 2026-08-25.

What is the short interest in CLH?

1,189,180 shares were sold short at the 2026-10-15 settlement, 10.29% of the float.

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Updated Nov 8, 2026. Read automatically from SEC filings and public data; errors are possible. Not investment advice.