Dudediligence.

Clean Harbors, Inc

CLHNYSE · Hazardous Waste Management
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Last 12 months

Sales planned on beside the trades reported on , and whether each names a .

Planned ·

$65.9M

13 notices · 229,343 sh

Oct 2025 to Oct 2026

Reported ·

$62.3M

11 sales · 1 buy · $135,760 bought

Oct 2025 to Jun 2026

The two figures cover different periods.

None of the 11 reported sales carry the 10b5-1 box. Together they are 0.41% of the shares on issue.

PLANNED · FORM 144Oct 2025 to Oct 2026REPORTED · FORM 4Oct 2025 to Jun 2026N2025DJ2026FMAMJJASO2026-08-14: GERSTENBERG ERIC W, Form 1442026-08-03: ANDREA ROBERTSON, Form 1442026-05-26: LAUREN STATES, Form 1442026-03-18: GERSTENBERG ERIC W, Form 1442026-03-18: MARCY REED, Form 1442026-03-17: BRIAN WEBER, Form 1442026-03-04: Alan S. McKim, Form 1442026-02-23: GERSTENBERG ERIC W, Form 1442026-02-20: SHARON M GABRIEL, Form 1442026-02-20: ERIC DUGAS, Form 1442026-02-19: Alan S. McKim, Form 1442026-02-19: JOHN WELCH, Form 1442025-12-15: GERSTENBERG ERIC W, Form 1442025-12-16: GERSTENBERG ERIC W, sold2026-02-19: MCKIM ALAN S, sold2026-02-19: Welch John R., sold2026-02-20: Dugas Eric J., sold2026-02-20: Gabriel Sharon M., sold2026-02-23: GERSTENBERG ERIC W, sold2026-03-04: MCKIM ALAN S, sold2026-03-17: Weber Brian P, sold2026-03-18: GERSTENBERG ERIC W, sold2026-03-18: Reed Marcy L., sold2026-05-11: Polito Karyn, bought2026-05-26: States Lauren, sold
under a no plan named▼ sale▲ buysize is dollars

Form 144 notices, newest first

2026-08-14GERSTENBERG ERIC W, CO-CEO$805,000
2,500 shno plan dateForm 4s on file end Jun 23144 ↗
2026-08-03ANDREA ROBERTSON, Director$247,752
789 shno plan dateForm 4s on file end Jun 23144 ↗
2026-05-26LAUREN STATES, Director$225,804
789 shno plan date144 ↗
Form 4, 2026-05-27: sold 789 at $286.19 Form 4 ↗
2026-03-18GERSTENBERG ERIC W, CO-CEO$290,000
1,000 shno plan date144 ↗
Form 4, 2026-03-19: sold 1,000 at $293.00 Form 4 ↗
2026-03-18MARCY REED, Director$240,715
836 shno plan date144 ↗
Form 4, 2026-03-19: sold 836 at $287.94 Form 4 ↗
2026-03-17BRIAN WEBER, EVP (CHESI)$1,373,922
4,683 shno plan date144 ↗
Form 4, 2026-03-17: sold 4,683 at $293.39 Form 4 ↗
2026-03-04Alan S. McKim, EXEC CHAIR, CTO.$29.3M
100,000 shno plan date144 ↗
Form 4, 2026-03-05: sold 100,000 at $292.65 Form 4 ↗
2026-02-23GERSTENBERG ERIC W, CO-CEO$712,000
2,500 shno plan date144 ↗
Form 4, 2026-02-24: sold 2,500 at $279.86 Form 4 ↗
2026-02-20SHARON M GABRIEL, EVP/CIO (CHESI)$998,528
3,540 shno plan date144 ↗
Form 4, 2026-02-20: sold 3,540 at $282.07 Form 4 ↗
2026-02-20ERIC DUGAS, EVP CHIEF FINANCIAL OFFICER$784,292
2,788 shno plan date144 ↗
Form 4, 2026-02-20: sold 2,788 at $281.31 Form 4 ↗
2026-02-19Alan S. McKim, EXEC CHAIR, CTO.$30.5M
108,567 shno plan date144 ↗
Form 4, 2026-02-23: sold 100,000 at $281.14 Form 4 ↗
2026-02-19JOHN WELCH, Director$204,806
750 shno plan date144 ↗
Form 4, 2026-02-20: sold 750 at $273.07 Form 4 ↗
2025-12-15GERSTENBERG ERIC W, CO-CEO$145,000
601 shno plan date144 ↗
Form 4, 2025-12-17: sold 601 at $240.90 Form 4 ↗