EG
Eric W Gerstenberg
Co-Ceo

Eric W Gerstenberg insider trades: Clean Harbors (CLH) stock sales

Co-Ceo, Clean Harbors Last trade Aug 14, 2026 137 Form 4 filings
$2.9M
Sold, last 12 months
6 sales
$0
Bought, last 12 months
0 buys
36
Open-market trades
since 2005
2
Companies
last trade 2026

Trades on the price chart

Daily close, with an arrow on each day they bought or sold

Companies

Where Eric reports to the SEC

Open-market buys and sales

36 trades reported on SEC Form 4, newest first

DateStockTypeValue
Aug 14, 2026CLH↓ Sell$803K
Mar 18, 2026CLH↓ Sell$293K
Mar 18, 2026CLH↓ Sell$293K
Feb 23, 2026CLH↓ Sell$700K
Feb 23, 2026CLH↓ Sell$700K
Dec 16, 2025CLH↓ Sell$145K
Jun 6, 2025CLH↓ Sell$1.8M
Nov 15, 2024CLH↓ Sell$1.5M
Mar 15, 2024CLH↓ Sell$2.9M
Nov 22, 2023CLH↓ Sell$1.3M
Jul 3, 2023CLH↓ Sell$1.6M
Mar 15, 2023CLH↓ Sell$65K
Dec 21, 2022CLH↓ Sell$1.9M
Mar 25, 2022CLH↓ Sell$739K
Aug 20, 2021CLH↓ Sell$1.8M
Aug 20, 2020CLH↓ Sell$1.3M
Aug 8, 2019CLH↓ Sell$1.6M
Jun 25, 2018CLH↓ Sell$442K
Dec 27, 2017CLH↓ Sell$377K
Dec 26, 2017CLH↓ Sell$273K
Aug 24, 2017CLH↓ Sell$235K
Dec 9, 2016CLH↓ Sell$416K
Sep 9, 2015CLH↓ Sell$811K
Oct 1, 2013CLH↓ Sell$59K
Aug 9, 2012CLH↓ Sell$220K
May 21, 2012CLH↓ Sell$184K
Jul 6, 2011CLH↓ Sell$128K
Sep 3, 2010CLH↓ Sell$95K
Oct 2, 2009CLH↓ Sell$27K
Aug 22, 2008CLHB↓ Sell$634K
Apr 4, 2007CLHB↓ Sell$360K
Jan 11, 2007CLHB↓ Sell$54K
Sep 26, 2006CLHB↓ Sell$42K
Sep 29, 2005CLHB↓ Sell$33K
Jun 13, 2005CLHB↓ Sell$352K
May 2, 2005CLHB↓ Sell$119K

Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.

Other CLH insiders

Open-market trades in the last 12 months

About Eric W Gerstenberg's insider trades

Eric W Gerstenberg is Co-Ceo at Clean Harbors (CLH). Since May 2, 2005, Eric has reported no open-market purchases and 36 sales worth $24.2M on SEC Form 4. In the last 12 months: 6 sales ($2.9M).

Their filings also include shares withheld for taxes (76 filings), grants and awards (28 filings), shares returned to the company (11 filings), option exercises (7 filings). These aren't open-market trades and aren't counted above.

How to read insider trades

Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every CLH insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.