R. John Welch

Insider Trading: Sales

Symbol	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
CLH	$228.51	1,250	$285,637.50	11,402	2025-05-28	Filing
CLH	$150.43	1,000	$150,430.00	12,427	2023-06-02	Filing
CLH	$99.05	5,500	$544,775.00	10,173	2021-08-05	Filing