Rebecca Underwood

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
1 Feb 25	CLH Clean Harbors	Common Stock	Payment of exercise	Dispose F	No	No	233	299	69.67 k	18,562
1 Feb 25	CLH Clean Harbors	Common Stock	Grant	Acquire A	No	No	0	2,587	0.00	18,861
1 Feb 25	CLH Clean Harbors	Common Stock	Grant	Acquire A	No	No	0	863	0.00	16,274
15 Dec 24	CLH Clean Harbors	Common Stock	Payment of exercise	Dispose F	No	No	244.28	88	21.50 k	15,411
1 Jul 24	CLH Clean Harbors	Common Stock	Payment of exercise	Dispose F	No	No	220.63	1,051	231.88 k	15,499
15 Mar 24	CLH Clean Harbors	Common Stock	Payment of exercise	Dispose F	No	No	187.84	86	16.15 k	16,550
1 Feb 24	CLH Clean Harbors	Common Stock	Grant	Acquire A	No	No	0	2,803	0.00	16,636
1 Feb 24	CLH Clean Harbors	Common Stock	Grant	Acquire A	No	No	0	765	0.00	13,833

Data from 3, 4 and 5 filings. Values as filed, not updated for current price.