John R. Welch Clean Harbors Inc (CLH) insider trading activity

John R. Welch is of CLEAN HARBORS INC. Currently has a direct ownership of 11,402 shares of CLH, which is worth approximately $2.59 Million. The most recent transaction as insider was on May 28, 2025, when has been sold 1,250 shares (Common Stock) at a price of $228.51 per share, resulting in proceeds of $285,637. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 11.4K

3.89% 3M change

3.89% 12M change

Total Value Held $2.59 Million

John R. Welch Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
May 28 2025	SELL Open market or private sale	$285,637 $228.51 p/Share	1,250 Reduced 9.88%	11,402 Common Stock
May 21 2025	BUY Grant, award, or other acquisition	-	789 Added 5.87%	12,652 Common Stock
May 22 2024	BUY Grant, award, or other acquisition	-	836 Added 6.58%	11,863 Common Stock
Feb 26 2024	SELL Bona fide gift	-	1,400 Reduced 11.27%	11,027 Common Stock
Jun 02 2023	SELL Open market or private sale	$150,430 $150.43 p/Share	1,000 Reduced 7.45%	12,427 Common Stock
May 24 2023	BUY Grant, award, or other acquisition	-	1,148 Added 7.88%	13,427 Common Stock
May 25 2022	BUY Grant, award, or other acquisition	-	1,849 Added 13.09%	12,279 Common Stock
Jan 03 2022	BUY Grant, award, or other acquisition	-	257 Added 2.4%	10,430 Common Stock
Aug 05 2021	SELL Open market or private sale	$544,775 $99.05 p/Share	5,500 Reduced 35.09%	10,173 Common Stock
Jun 03 2021	BUY Grant, award, or other acquisition	-	1,513 Added 8.8%	15,673 Common Stock

JRW

John R. Welch

Weston, MA

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