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CLEAN HARBORS INC (CLH)

Institutional ownership, SEC filings and insider activity

Sector: Infrastructure & Utilities · SEC CIK 0000822818 · EDGAR filings · Updated 2026-07-20

CLEAN HARBORS INC (CLH) has reported institutional ownership of 93.3%, with 621 institutional managers holding positions valued at $14.1B per the latest 13F reporting period.

Institutional ownership
93.3%
Institutional managers
621
Reported 13F value
$14.1B
Insider activity
116 trans.
−$87.7M net selling

Latest updates

Institutional ownership overview

According to SEC 13F filings tracked by Sightfile, CLEAN HARBORS INC has 621 institutional holders and institutional ownership of 93.3%.

Insider activity

Insiders reported 116 transactions (1 buys, 19 sells) across 22 reporting insiders, with a net reported value of −$87.7M.

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Sightfile provides information only — not investment advice, recommendations, or an assessment of any security. Data is derived from official public sources (SEC EDGAR and U.S. government agencies), may contain errors or delays, and should be verified against the source filing before relying on it.
Data sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-07-20.