NYSE:CLH

Clean Harbors Stock Insider Trading

Industrials > Waste Management

Buy CLH

*Your capital is at risk

$286.63

+10.64 (+3.86%)

At Close: Jun 03, 2026

Clean Harbors Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be negative at -90.32. In total, the insiders bought 75.67K and sold 297.75K CLH shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	-90.32
● Buy	75.67K shares
● Sell	297.75K shares
34% Buy Activity Negligible or No Correlation
Sell Signal Medium Confidence Mar 04, 2026 Analysis Breakdown: Strongly supported by a very low Insider Power Score of -90.32. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
Mar 13, 2026 Sell	Common Stock F-InKind	Gabriel Sharon M. EVP/cio (chesi)	Officer	727 Value: $210.1K
Mar 13, 2026 Sell	Common Stock D-Return	Underwood Rebecca President & EVP Facilities	CEO / President	1 401 Value: $0
Mar 13, 2026 Sell	Common Stock F-InKind	Underwood Rebecca President & EVP Facilities	CEO / President	125 Value: $36.1K
Mar 13, 2026 Sell	Common Stock D-Return	Weber Brian P EVP (chesi)	Officer	1 869 Value: $0
Mar 13, 2026 Sell	Common Stock F-InKind	Weber Brian P EVP (chesi)	Officer	960 Value: $277.4K
Mar 13, 2026 Sell	Common Stock D-Return	Gerstenberg Eric W Co-ceo	CEO / President	2 166 Value: $0
Mar 13, 2026 Sell	Common Stock F-InKind	Harrison Robert W. EVP, Ehs	Officer	18 Value: $5K
Mar 13, 2026 Sell	Common Stock D-Return	Dugas Eric J. EVP Chief Financial Officer	C-Suite Officer	1 324 Value: $0
Mar 13, 2026 Sell	Common Stock F-InKind	Mckim Alan S Exec Chair, CTO.	Officer	1 265 Value: $365.5K
Mar 13, 2026 Sell	Common Stock F-InKind	Battles Michael Louis Co-ceo	CEO / President	1 148 Value: $331.7K
Mar 04, 2026 Sell	Common Stock S-Sale	Mckim Alan S Exec Chair, CTO.	Officer	100 000 Value: $29.3M
Feb 23, 2026 Sell	Common Stock S-Sale	Gerstenberg Eric W Co-ceo	CEO / President	2 500 Value: $699.7K
Feb 20, 2026 Sell	Common Stock S-Sale	Gabriel Sharon M. EVP/cio (chesi)	Officer	3 540 Value: $998.5K
Feb 20, 2026 Sell	Common Stock S-Sale	Dugas Eric J. EVP Chief Financial Officer	C-Suite Officer	2 788 Value: $784.3K
Feb 19, 2026 Sell	Common Stock G-Gift	Mckim Alan S Exec Chair, CTO.	Officer	10 000 Value: $0
Feb 19, 2026 Sell	Common Stock S-Sale	Mckim Alan S Exec Chair, CTO.	Officer	100 000 Value: $28.1M
Feb 19, 2026 Sell	Common Stock S-Sale	Welch John R. Director	Director	750 Value: $204.8K
Feb 02, 2026 Sell	Common Stock F-InKind	Gabriel Sharon M. EVP/cio (chesi)	Officer	508 Value: $132.0K
Feb 02, 2026 Sell	Common Stock F-InKind	Gerstenberg Eric W Co-ceo	CEO / President	4 934 Value: $1.28M
Feb 02, 2026 Sell	Common Stock F-InKind	Harrison Robert W. EVP, Ehs	Officer	184 Value: $47.8K
Feb 02, 2026 Sell	Common Stock F-InKind	Battles Michael Louis Co-ceo	CEO / President	5 205 Value: $1.35M
Feb 02, 2026 Sell	Common Stock F-InKind	Weber Brian P EVP (chesi)	Officer	1 394 Value: $362.3K
Feb 02, 2026 Sell	Common Stock F-InKind	Underwood Rebecca President & EVP Facilities	CEO / President	425 Value: $110.5K
Feb 02, 2026 Sell	Common Stock F-InKind	Geer Charles H. Ii EVP, Industrial Services	Officer	197 Value: $51.2K
Feb 02, 2026 Sell	Common Stock F-InKind	Dugas Eric J. EVP Chief Financial Officer	C-Suite Officer	567 Value: $147.4K

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks

ABOUT CLEAN HARBORS INC

Clean Harbors, Inc. provides environmental and industrial services in North America. The company operates through two segments, Environmental Services and Safety-Kleen Sustainability Solutions. The Environmental Services segment collects, transports, treats, and disposes hazardous and non-hazardous waste, such as resource recovery, physical treatment, fuel blending, incineration, landfill disposal, wastewater treatment, lab chemicals disposal, an...

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