CLH
CLEAN HARBORS INC · Transportation & Utilities · Market cap $16.9B
Insiders sold $3.1M net in the last 90 days ·4 sellers, 0 buyers· latest Form 4 filed Aug 18, 2026
Insider Buying
$136K
reported purchases (SEC code P)
Insider Selling
$63.4M
reported sales (SEC code S)
Unique Insiders
10
in the rolling window
Latest filing
Aug 18, 2026
GERSTENBERG ERIC W
CLEAN HARBORS INC (CLH) has 72 SEC Form 4 filings (102 transaction rows) in the rolling window, disclosed by 10 distinct insiders. Most recent filing: Aug 18, 2026.
Inside the rolling window, 10 insiders at CLEAN HARBORS INC reported 1 open-market purchase totaling $136K and 13 open-market sales totaling $63.4M. The most active filer is CO-CEO GERSTENBERG ERIC W with 4 filings. Insiders have net sold $63.1M over the trailing 6 months. The most recent open-market filing is a sale of 2,500 shares by CO-CEO GERSTENBERG ERIC W, dated Aug 14, 2026, worth $803K.
- Industry:Waste Management
- CEO:Eric W. Gerstenberg
- Employees:22,155
- HQ:Norwell, MA, US
- IPO:1987-11-24
| Source | |||||||
|---|---|---|---|---|---|---|---|
| CO-CEO | Sale | 2,500 | $803K | Aug 18 | -0.1% | SEC ↗ | |
| CO-CEO | Sale | 1,000 | $293K | Aug 14 | -0.8% | SEC ↗ | |
GERSTENBERG ERIC WFirst in 5 months | CO-CEO | Sale | 2,500 | $700K | Aug 14 | -0.8% | SEC ↗ |
Dugas Eric J.First in 6 months | EVP CHIEF FINANCIAL OFFICER | Sale | 2,788 | $784K | Aug 14 | -0.8% | SEC ↗ |
Robertson AndreaFirst filing | Director | Sale | 789 | $248K | Aug 3 | +2.7% | SEC ↗ |
States LaurenFirst filing | Director | Sale | 789 | $226K | May 27 | +12.9% | SEC ↗ |
Polito KarynFirst filing | Director | Purchase | 460 | $136K | May 14 | +3.5% | SEC ↗ |
Reed Marcy L.First filing | Director | Sale | 836 | $241K | Mar 19 | +10.3% | SEC ↗ |
Weber Brian PFirst filing | EVP (CHESI) | Sale | 4,683 | $1.4M | Mar 17 | +9.9% | 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 ↗ |
Earnings: last 7 quarters
Congress trading CLH 17 all-time
- DRep. April DelaneySale$50,001 - $100,0002026-08-25
- 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 McClain DelaneySale$1,001 - $15,0002026-07-24
- DRep. April McClain DelaneySale$1,001 - $15,0002026-07-28
STOCK Act disclosures are filed up to 45 days after the trade. Amount is a disclosed range, not an exact figure.
Frequently asked questions
How many SEC Form 4 insider filings does CLH have?
CLEAN HARBORS INC (CLH) has 72 SEC Form 4 filings (102 transaction rows) in the rolling 365-day window, disclosed by 10 distinct insiders. Most recent filing: Aug 18, 2026.
When was the most recent SEC Form 4 filing for CLH?
The most recent Form 4 filing for CLH on Tracefour is dated Aug 18, 2026.
Who is the most active insider at CLH?
The most active SEC Form 4 filer at CLH in the rolling window is CO-CEO GERSTENBERG ERIC W, with 4 filings.
What is the net insider flow at CLH over the last 6 months?
Over the trailing 180 days, insiders at CLH have net sold $63.1M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at CLH in the current window?
Inside the rolling window, insiders at CLH bought $136K and sold $63.4M based on SEC Form 4 filings.
Can I get alerts for CLH insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at CLEAN HARBORS INC (CLH). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
CLEAN HARBORS INC is in the Transportation & Utilities sector.