Insider Trading — QuoTrend

Welch John R. – Insider Transactions

Ticker	Owner	Relationship	Date	Transaction	Cost	#Shares	Value ($)	#Shares Total	SEC Form 4
CLH	Welch John R.	Director	Feb 19 '26	Sale	273.07	750	204,803	10,237	Feb 20
CLH	Welch John R.	Director	May 28 '25	Sale	228.51	1,250	285,638	11,402	May 29
CLH	Welch John R.	Director	Jun 02 '23	Sale	150.43	1,000	150,430	12,427	Jun 05