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 | ||||||
|---|---|---|---|---|---|---|
| CO-CEO | Sale | 2,500 | $803K | Aug 18 | SEC ↗ | |
| CO-CEO | Sale | 1,000 | $293K | Aug 14 | SEC ↗ | |
GERSTENBERG ERIC WFirst in 5 months | CO-CEO | Sale | 2,500 | $700K | Aug 14 | SEC ↗ |
Dugas Eric J.First in 6 months | EVP CHIEF FINANCIAL OFFICER | Sale | 2,788 | $784K | Aug 14 | SEC ↗ |
Robertson AndreaFirst filing | Director | Sale | 789 | $248K | Aug 3 | SEC ↗ |
States LaurenFirst filing | Director | Sale | 789 | $226K | May 27 | SEC ↗ |
Polito KarynFirst filing | Director | Purchase | 460 | $136K | May 14 | SEC ↗ |
Reed Marcy L.First filing | Director | Sale | 836 | $241K | Mar 19 | SEC ↗ |
Weber Brian PFirst filing | EVP (CHESI) | Sale | 4,683 | $1.4M | Mar 17 | SEC ↗ |
| EXEC CHAIR, CTO. | Sale | 100,000 | $29.3M | Mar 5 | SEC ↗ | |
MCKIM ALAN SFirst filing | EXEC CHAIR, CTO. | Sale | 100,000 | $28.1M | Feb 23 | SEC ↗ |
Welch John R.First filing | Director | Sale | 750 | $205K | Feb 20 | SEC ↗ |
Gabriel Sharon M.First filing | EVP/CIO (CHESI) | Sale | 3,540 | $999K | Feb 20 | SEC ↗ |
GERSTENBERG ERIC WFirst filing | CO-CEO | Sale | 601 | $145K | Dec 17 | SEC ↗ |
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.