CLH

CLEAN HARBORS INC

Latest Form 4:Sale$803KbyGERSTENBERG ERIC W (CO-CEO) · filed Aug 18, 2026

CLEAN HARBORS INC (CLH) has 73 SEC Form 4 filings (104 transaction rows) in the rolling window, disclosed by 10 distinct insiders. Most recent filing: Aug 18, 2026.

The most active filer is CO-CEO GERSTENBERG ERIC W with 4 filings. Insiders have net sold $63.1M over the trailing 6 months.

  • Industry:Waste Management
  • CEO:Eric W. Gerstenberg
  • Employees:22,796
  • HQ:Norwell, MA, US
  • IPO:1987-11-24

Insider Buying

$136K

reported purchases (SEC code P)

Insider Selling

$63.4M

reported sales (SEC code S)

Unique Insiders

10

in the rolling window

Market Cap

$16.4B

latest known value

Source
Sale$803KAug 18SEC ↗
Sale$293KAug 14SEC ↗
GERSTENBERG ERIC WFirst in 5 months
Sale$700KAug 14SEC ↗
Dugas Eric J.First in 6 months
Sale$784KAug 14SEC ↗
Robertson AndreaFirst filing
Sale$248KAug 3SEC ↗
States LaurenFirst filing
Sale$226KMay 27SEC ↗
Polito KarynFirst filing
Purchase$136KMay 14SEC ↗
Reed Marcy L.First filing
Sale$241KMar 19SEC ↗
Weber Brian PFirst filing
Sale$1.4MMar 17SEC ↗
Sale$29.3MMar 5SEC ↗
MCKIM ALAN SFirst filing
Sale$28.1MFeb 23SEC ↗
Welch John R.First filing
Sale$205KFeb 20SEC ↗
Gabriel Sharon M.First filing
Sale$999KFeb 20SEC ↗
GERSTENBERG ERIC WFirst filing
Sale$145KDec 17SEC ↗

Congress trading CLH

See timeline →
  • DRep. April DelaneySale$1,001 - $15,0002026-07-24
  • DRep. April DelaneySale$1,001 - $15,0002026-07-27
  • DRep. April DelaneySale$1,001 - $15,0002026-07-28
  • DRep. April DelaneySale$1,001 - $15,0002026-04-30

STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.

Related companies

CLEAN HARBORS INC is in the Transportation & Utilities sector.