CLEAN HARBORS INC

Ticker: CLH CUSIP: 184496107 Class: EQTY

SEI INVESTMENTS CO's Holding History (CIK: 0000350894)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 32,271 Value ($000) $7,567 Avg Close $228.49 Range $201.34 - $248.07

Q3 2025

Shares 36,733 Value ($000) $8,530 Avg Close $236.75 Range $218.46 - $251.43

Q2 2025

Shares 37,493 Value ($000) $8,667 Avg Close $218.92 Range $178.29 - $235.43

Q1 2025

Shares 41,973 Value ($000) $8,273 Avg Close $218.84 Range $186.54 - $247.51

Q4 2024

Shares 49,957 Value ($000) $11,497 Avg Close $248.40 Range $220.10 - $267.11

Q3 2024

Shares 91,005 Value ($000) $21,997 Avg Close $235.10 Range $217.36 - $251.65

Q2 2024

Shares 110,951 Value ($000) $25,092 Avg Close $209.64 Range $189.32 - $231.15

Q1 2024

Shares 185,241 Value ($000) $37,291 Avg Close $179.73 Range $161.39 - $202.58

Q4 2023

Shares 169,846 Value ($000) $29,640 Avg Close $164.14 Range $132.92 - $179.49

Q3 2023

Shares 216,466 Value ($000) $36,228 Avg Close $168.59 Range $160.37 - $178.33

Q2 2023

Shares 253,307 Value ($000) $41,652 Avg Close $146.18 Range $129.70 - $164.80

Q1 2023

Shares 189,773 Value ($000) $27,054 Avg Close $130.22 Range $110.96 - $144.20

Q4 2022

Shares 80,137 Value ($000) $9,145 Avg Close $116.83 Range $109.07 - $125.41

Q3 2022

Shares 62,415 Value ($000) $6,865 Avg Close $107.08 Range $83.56 - $124.49

Q2 2022

Shares 64,277 Value ($000) $5,640 Avg Close $96.49 Range $81.56 - $115.00

Q1 2022

Shares 49,504 Value ($000) $5,523 Avg Close $98.73 Range $87.11 - $113.71

Q4 2021

Shares 44,668 Value ($000) $4,494 Avg Close $105.37 Range $90.25 - $118.89

Q3 2021

Shares 46,012 Value ($000) $4,796 Avg Close $98.39 Range $89.03 - $106.90

Q2 2021

Shares 62,996 Value ($000) $5,852 Avg Close $90.87 Range $83.56 - $96.47

Q1 2021

Shares 67,630 Value ($000) $5,643 Avg Close $84.13 Range $73.69 - $91.94

Q4 2020

Shares 76,508 Value ($000) $5,824 Avg Close $67.02 Range $52.22 - $77.16

Q3 2020

Shares 79,652 Value ($000) $4,492 Avg Close $59.23 Range $52.29 - $67.07

Q2 2020

Shares 96,969 Value ($000) $5,836 Avg Close $55.73 Range $44.36 - $71.22

Q1 2020

Shares 100,065 Value ($000) $5,153 Avg Close $73.03 Range $29.45 - $88.40

Q4 2019

Shares 89,655 Value ($000) $7,694 Avg Close $81.27 Range $71.31 - $88.01

Q3 2019

Shares 97,585 Value ($000) $7,544 Avg Close $73.96 Range $67.83 - $80.06

Q2 2019

Shares 99,798 Value ($000) $7,105 Avg Close $69.62 Range $62.54 - $77.24

Q1 2019

Shares 81,021 Value ($000) $5,810 Avg Close $61.79 Range $48.13 - $72.26

Q4 2018

Shares 138,159 Value ($000) $9,719 Avg Close $62.29 Range $46.21 - $72.46

Q3 2018

Shares 134,035 Value ($000) $9,594 Avg Close $63.60 Range $54.90 - $72.50

Q2 2018

Shares 194,530 Value ($000) $10,807 Avg Close $51.36 Range $44.75 - $56.00

Q1 2018

Shares 191,388 Value ($000) $9,341 Avg Close $52.41 Range $46.62 - $57.97

Q4 2017

Shares 312,198 Value ($000) $16,921 Avg Close $54.14 Range $51.43 - $58.22

Q3 2017

Shares 199,416 Value ($000) $11,307 Avg Close $54.44 Range $49.63 - $58.28

Q2 2017

Shares 189,586 Value ($000) $10,585 Avg Close $57.50 Range $53.17 - $61.62

Q1 2017

Shares 184,409 Value ($000) $10,257 Avg Close $55.34 Range $52.77 - $59.17

Q4 2016

Shares 213,135 Value ($000) $11,861 Avg Close $50.41 Range $43.03 - $58.23

Q3 2016

Shares 219,886 Value ($000) $10,550 Avg Close $49.57 Range $44.91 - $53.79

Q2 2016

Shares 206,352 Value ($000) $10,753 Avg Close $50.01 Range $46.40 - $54.54

Q1 2016

Shares 210,576 Value ($000) $10,391 Avg Close $43.78 Range $37.09 - $49.97

Q4 2015

Shares 263,229 Value ($000) $10,963 Avg Close $43.45 Range $39.89 - $48.05

Q3 2015

Shares 15,588 Value ($000) $686 Avg Close $49.63 Range $43.00 - $54.31

Q2 2015

Shares 13,976 Value ($000) $751 Avg Close $55.82 Range $50.65 - $59.29

Q1 2015

Shares 13,732 Value ($000) $776 Avg Close $51.78 Range $44.70 - $58.44

Q4 2014

Shares 12,038 Value ($000) $578 Avg Close $48.74 Range $43.05 - $53.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	32,271	$7,567	$228.49	$201.34 - $248.07
Q3 2025	36,733	$8,530	$236.75	$218.46 - $251.43
Q2 2025	37,493	$8,667	$218.92	$178.29 - $235.43
Q1 2025	41,973	$8,273	$218.84	$186.54 - $247.51
Q4 2024	49,957	$11,497	$248.40	$220.10 - $267.11
Q3 2024	91,005	$21,997	$235.10	$217.36 - $251.65
Q2 2024	110,951	$25,092	$209.64	$189.32 - $231.15
Q1 2024	185,241	$37,291	$179.73	$161.39 - $202.58
Q4 2023	169,846	$29,640	$164.14	$132.92 - $179.49
Q3 2023	216,466	$36,228	$168.59	$160.37 - $178.33
Q2 2023	253,307	$41,652	$146.18	$129.70 - $164.80
Q1 2023	189,773	$27,054	$130.22	$110.96 - $144.20
Q4 2022	80,137	$9,145	$116.83	$109.07 - $125.41
Q3 2022	62,415	$6,865	$107.08	$83.56 - $124.49
Q2 2022	64,277	$5,640	$96.49	$81.56 - $115.00
Q1 2022	49,504	$5,523	$98.73	$87.11 - $113.71
Q4 2021	44,668	$4,494	$105.37	$90.25 - $118.89
Q3 2021	46,012	$4,796	$98.39	$89.03 - $106.90
Q2 2021	62,996	$5,852	$90.87	$83.56 - $96.47
Q1 2021	67,630	$5,643	$84.13	$73.69 - $91.94
Q4 2020	76,508	$5,824	$67.02	$52.22 - $77.16
Q3 2020	79,652	$4,492	$59.23	$52.29 - $67.07
Q2 2020	96,969	$5,836	$55.73	$44.36 - $71.22
Q1 2020	100,065	$5,153	$73.03	$29.45 - $88.40
Q4 2019	89,655	$7,694	$81.27	$71.31 - $88.01
Q3 2019	97,585	$7,544	$73.96	$67.83 - $80.06
Q2 2019	99,798	$7,105	$69.62	$62.54 - $77.24
Q1 2019	81,021	$5,810	$61.79	$48.13 - $72.26
Q4 2018	138,159	$9,719	$62.29	$46.21 - $72.46
Q3 2018	134,035	$9,594	$63.60	$54.90 - $72.50
Q2 2018	194,530	$10,807	$51.36	$44.75 - $56.00
Q1 2018	191,388	$9,341	$52.41	$46.62 - $57.97
Q4 2017	312,198	$16,921	$54.14	$51.43 - $58.22
Q3 2017	199,416	$11,307	$54.44	$49.63 - $58.28
Q2 2017	189,586	$10,585	$57.50	$53.17 - $61.62
Q1 2017	184,409	$10,257	$55.34	$52.77 - $59.17
Q4 2016	213,135	$11,861	$50.41	$43.03 - $58.23
Q3 2016	219,886	$10,550	$49.57	$44.91 - $53.79
Q2 2016	206,352	$10,753	$50.01	$46.40 - $54.54
Q1 2016	210,576	$10,391	$43.78	$37.09 - $49.97
Q4 2015	263,229	$10,963	$43.45	$39.89 - $48.05
Q3 2015	15,588	$686	$49.63	$43.00 - $54.31
Q2 2015	13,976	$751	$55.82	$50.65 - $59.29
Q1 2015	13,732	$776	$51.78	$44.70 - $58.44
Q4 2014	12,038	$578	$48.74	$43.05 - $53.84