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CLHClean Harbors Inc

John Welch

Director at Clean Harbors Inc, as of May 22, 2026Sold $205K of stock in the past 12 months: 100% with no plan disclosed.

Updated Oct 15, 2026 from SEC filings · covers Oct 16, 2025 to Oct 15, 2026
6.6%
share of stake sold at Clean Harbors Inc
11K
shares held after the latest filing, Clean Harbors Inc
Vested shares reported on Forms 3, 4 and 5 only. Not the insider's whole wealth.
1
company filed for

Selling by month

Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.

No plan disclosedOne dollar scale for every month; the tallest bar is labeled
OctNovDecJanFeb 2026: $205K no plan disclosed$205KFebMarAprMayJunJulAugSepOct

Pattern

What the filings show, past 12 months. Nothing here rates or predicts.

Roles from filings

Every company we track where this person has filed, newest filing first.

CompanyTitleFirst filingLatest filing
Clean Harbors Inc (CLH)DirectorJun 19, 2014May 22, 2026

Recent filings

The last 3 days with transactions, newest first, one line per trade date. Each number links to an SEC filing.

This page shows only what this person reported on SEC ownership filings. See the methodology. Spotted something wrong? Report an error.