CoverageForm 410-K10-Q8-K13D13G13F

Clean Harbors Inc

CLHCIK 0000822818 · Every Form 4 filed by insiders at this issuer. See financials →

Annual report (10-K)

Latest 10-K filed Feb 18, 2026. Sentiment + YoY language diff vs prior year. Read sections →

Signal:Neutral
Risk Factors:tone -0.0374Δ-0.000194% similar+40/-40
MD&A:tone -0.0059Δ-0.000388% similar+87/-78

Sentiment via Loughran-McDonald lexicon · YoY diff via Jaccard similarity + paragraph set difference.

Recent 8-K announcements

Per-item disclosure feed. Item 2.02 is the earnings release.

Top insiders

Most active reporters at Clean Harbors Inc

NameRolesFilings
Harrison Robert W.
Officer
12
Underwood Rebecca
Officer
11
Welch John R.
Director
11
Preston John T
Director
9
Polito Karyn
Director
7

Showing 11-15 of 26

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Top performers

Insiders ranked by realized 90-day signed return on their open-market trades at Clean Harbors Inc. Minimum 3 scored trades. Returns are signed - a sale followed by a rally counts against the insider.

#InsiderTradesWin rateAvgMedianBestWorst
1Robertson Andrea4100%+6.6%+7.0%+9.6%+3.0%
2Battles Michael Louis633%+1.4%-0.9%+27.6%-16.8%
3Banucci Eugene G30%-11.0%-9.6%-7.0%-16.3%
4Gabriel Sharon M.617%-8.8%-10.2%+0.7%-16.8%
5Welch John R.30%-7.8%-7.7%-3.6%-12.2%
6McKim Alan S1817%-7.3%-8.7%+23.8%-27.4%
7Weber Brian P617%-6.5%-9.6%+16.9%-19.4%
8Speights Robert633%-6.1%-3.5%+4.2%-19.8%
9Gerstenberg Eric W922%-5.6%-8.5%+22.3%-20.6%
10Preston John T333%-5.6%-3.0%+3.7%-17.6%

All filings

338 Form 4 / 4-A filings, newest first

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