CLEAN HARBORS INC

Ticker: CLH CUSIP: 184496107 Class: EQTY

Arizona State Retirement System's Holding History (CIK: 0001558481)

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

Q4 2025

Shares 14,072 Value ($000) $3,300 Avg Close $228.49 Range $201.34 - $248.07

Q3 2025

Shares 15,063 Value ($000) $3,498 Avg Close $236.75 Range $218.46 - $251.43

Q2 2025

Shares 14,932 Value ($000) $3,452 Avg Close $218.92 Range $178.29 - $235.43

Q1 2025

Shares 14,688 Value ($000) $2,895 Avg Close $218.84 Range $186.54 - $247.51

Q4 2024

Shares 14,880 Value ($000) $3,424 Avg Close $248.40 Range $220.10 - $267.11

Q3 2024

Shares 14,755 Value ($000) $3,566 Avg Close $235.10 Range $217.36 - $251.65

Q2 2024

Shares 14,346 Value ($000) $3,244 Avg Close $209.64 Range $189.32 - $231.15

Q1 2024

Shares 14,121 Value ($000) $2,843 Avg Close $179.73 Range $161.39 - $202.58

Q4 2023

Shares 14,381 Value ($000) $2,510 Avg Close $164.14 Range $132.92 - $179.49

Q3 2023

Shares 14,635 Value ($000) $2,449 Avg Close $168.59 Range $160.37 - $178.33

Q2 2023

Shares 14,643 Value ($000) $2,408 Avg Close $146.18 Range $129.70 - $164.80

Q1 2023

Shares 14,884 Value ($000) $2,122 Avg Close $130.22 Range $110.96 - $144.20

Q4 2022

Shares 14,503 Value ($000) $1,655 Avg Close $116.83 Range $109.07 - $125.41

Q3 2022

Shares 14,052 Value ($000) $1,545 Avg Close $107.08 Range $83.56 - $124.49

Q2 2022

Shares 14,007 Value ($000) $1,228 Avg Close $96.49 Range $81.56 - $115.00

Q1 2022

Shares 13,973 Value ($000) $1,560 Avg Close $98.73 Range $87.11 - $113.71

Q4 2021

Shares 13,910 Value ($000) $1,388 Avg Close $105.37 Range $90.25 - $118.89

Q3 2021

Shares 14,120 Value ($000) $1,467 Avg Close $98.39 Range $89.03 - $106.90

Q2 2021

Shares 14,150 Value ($000) $1,318 Avg Close $90.87 Range $83.56 - $96.47

Q1 2021

Shares 15,278 Value ($000) $1,284 Avg Close $84.13 Range $73.69 - $91.94

Q4 2020

Shares 15,331 Value ($000) $1,167 Avg Close $67.02 Range $52.22 - $77.16

Q3 2020

Shares 15,931 Value ($000) $893 Avg Close $59.23 Range $52.29 - $67.07

Q2 2020

Shares 11,971 Value ($000) $718 Avg Close $55.73 Range $44.36 - $71.22

Q1 2020

Shares 12,447 Value ($000) $639 Avg Close $73.03 Range $29.45 - $88.40

Q4 2019

Shares 29,116 Value ($000) $2,497 Avg Close $81.27 Range $71.31 - $88.01

Q3 2019

Shares 32,030 Value ($000) $2,473 Avg Close $73.96 Range $67.83 - $80.06

Q2 2019

Shares 36,900 Value ($000) $2,624 Avg Close $69.62 Range $62.54 - $77.24

Q1 2019

Shares 36,498 Value ($000) $2,611 Avg Close $61.79 Range $48.13 - $72.26

Q4 2018

Shares 36,579 Value ($000) $1,805 Avg Close $62.29 Range $46.21 - $72.46

Q3 2018

Shares 36,242 Value ($000) $2,594 Avg Close $63.60 Range $54.90 - $72.50

Q2 2018

Shares 35,500 Value ($000) $1,972 Avg Close $51.36 Range $44.75 - $56.00

Q1 2018

Shares 34,790 Value ($000) $1,698 Avg Close $52.41 Range $46.62 - $57.97

Q4 2017

Shares 37,290 Value ($000) $2,021 Avg Close $54.14 Range $51.43 - $58.22

Q3 2017

Shares 29,469 Value ($000) $1,671 Avg Close $54.44 Range $49.63 - $58.28

Q2 2017

Shares 21,900 Value ($000) $1,223 Avg Close $57.50 Range $53.17 - $61.62

Q1 2017

Shares 21,700 Value ($000) $1,207 Avg Close $55.34 Range $52.77 - $59.17

Q4 2016

Shares 23,354 Value ($000) $1,300 Avg Close $50.41 Range $43.03 - $58.23

Q3 2016

Shares 20,454 Value ($000) $981 Avg Close $49.57 Range $44.91 - $53.79

Q2 2016

Shares 20,454 Value ($000) $1,066 Avg Close $50.01 Range $46.40 - $54.54

Q1 2016

Shares 24,954 Value ($000) $1,231 Avg Close $43.78 Range $37.09 - $49.97

Q4 2015

Shares 24,854 Value ($000) $1,035 Avg Close $43.45 Range $39.89 - $48.05

Q3 2015

Shares 24,059 Value ($000) $1,058 Avg Close $49.63 Range $43.00 - $54.31

Q4 2014

Shares 37,100 Value ($000) $1,782 Avg Close $48.74 Range $43.05 - $53.84

Q3 2014

Shares 35,600 Value ($000) $1,919 Avg Close $58.81 Range $53.66 - $65.53

Q2 2014

Shares 37,700 Value ($000) $2,422 Avg Close $59.46 Range $52.02 - $64.30

Q1 2014

Shares 36,600 Value ($000) $2,005 Avg Close $54.49 Range $44.95 - $60.47

Q4 2013

Shares 40,200 Value ($000) $2,410 Avg Close $57.66 Range $51.77 - $64.12

Q3 2013

Shares 43,600 Value ($000) $2,557 Avg Close $55.80 Range $50.23 - $59.80

Q2 2013

Shares 41,100 Value ($000) $2,076 Avg Close $55.73 Range $50.37 - $61.28

Q1 2013

Shares 39,100 Value ($000) $2,271 Avg Close $54.78 Range $48.22 - $60.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	14,072	$3,300	$228.49	$201.34 - $248.07
Q3 2025	15,063	$3,498	$236.75	$218.46 - $251.43
Q2 2025	14,932	$3,452	$218.92	$178.29 - $235.43
Q1 2025	14,688	$2,895	$218.84	$186.54 - $247.51
Q4 2024	14,880	$3,424	$248.40	$220.10 - $267.11
Q3 2024	14,755	$3,566	$235.10	$217.36 - $251.65
Q2 2024	14,346	$3,244	$209.64	$189.32 - $231.15
Q1 2024	14,121	$2,843	$179.73	$161.39 - $202.58
Q4 2023	14,381	$2,510	$164.14	$132.92 - $179.49
Q3 2023	14,635	$2,449	$168.59	$160.37 - $178.33
Q2 2023	14,643	$2,408	$146.18	$129.70 - $164.80
Q1 2023	14,884	$2,122	$130.22	$110.96 - $144.20
Q4 2022	14,503	$1,655	$116.83	$109.07 - $125.41
Q3 2022	14,052	$1,545	$107.08	$83.56 - $124.49
Q2 2022	14,007	$1,228	$96.49	$81.56 - $115.00
Q1 2022	13,973	$1,560	$98.73	$87.11 - $113.71
Q4 2021	13,910	$1,388	$105.37	$90.25 - $118.89
Q3 2021	14,120	$1,467	$98.39	$89.03 - $106.90
Q2 2021	14,150	$1,318	$90.87	$83.56 - $96.47
Q1 2021	15,278	$1,284	$84.13	$73.69 - $91.94
Q4 2020	15,331	$1,167	$67.02	$52.22 - $77.16
Q3 2020	15,931	$893	$59.23	$52.29 - $67.07
Q2 2020	11,971	$718	$55.73	$44.36 - $71.22
Q1 2020	12,447	$639	$73.03	$29.45 - $88.40
Q4 2019	29,116	$2,497	$81.27	$71.31 - $88.01
Q3 2019	32,030	$2,473	$73.96	$67.83 - $80.06
Q2 2019	36,900	$2,624	$69.62	$62.54 - $77.24
Q1 2019	36,498	$2,611	$61.79	$48.13 - $72.26
Q4 2018	36,579	$1,805	$62.29	$46.21 - $72.46
Q3 2018	36,242	$2,594	$63.60	$54.90 - $72.50
Q2 2018	35,500	$1,972	$51.36	$44.75 - $56.00
Q1 2018	34,790	$1,698	$52.41	$46.62 - $57.97
Q4 2017	37,290	$2,021	$54.14	$51.43 - $58.22
Q3 2017	29,469	$1,671	$54.44	$49.63 - $58.28
Q2 2017	21,900	$1,223	$57.50	$53.17 - $61.62
Q1 2017	21,700	$1,207	$55.34	$52.77 - $59.17
Q4 2016	23,354	$1,300	$50.41	$43.03 - $58.23
Q3 2016	20,454	$981	$49.57	$44.91 - $53.79
Q2 2016	20,454	$1,066	$50.01	$46.40 - $54.54
Q1 2016	24,954	$1,231	$43.78	$37.09 - $49.97
Q4 2015	24,854	$1,035	$43.45	$39.89 - $48.05
Q3 2015	24,059	$1,058	$49.63	$43.00 - $54.31
Q4 2014	37,100	$1,782	$48.74	$43.05 - $53.84
Q3 2014	35,600	$1,919	$58.81	$53.66 - $65.53
Q2 2014	37,700	$2,422	$59.46	$52.02 - $64.30
Q1 2014	36,600	$2,005	$54.49	$44.95 - $60.47
Q4 2013	40,200	$2,410	$57.66	$51.77 - $64.12
Q3 2013	43,600	$2,557	$55.80	$50.23 - $59.80
Q2 2013	41,100	$2,076	$55.73	$50.37 - $61.28
Q1 2013	39,100	$2,271	$54.78	$48.22 - $60.00