CLEAN HARBORS INC

Ticker: CLH CUSIP: 184496107 Class: EQTY

STATE OF MICHIGAN RETIREMENT SYSTEM's Holding History (CIK: 0000762152)

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

Q4 2025

Shares 11,907 Value ($000) $2,792 Avg Close $228.49 Range $201.34 - $248.07

Q3 2025

Shares 12,007 Value ($000) $2,788 Avg Close $236.75 Range $218.46 - $251.43

Q2 2025

Shares 12,107 Value ($000) $2,799 Avg Close $218.92 Range $178.29 - $235.43

Q1 2025

Shares 12,107 Value ($000) $2,386 Avg Close $218.84 Range $186.54 - $247.51

Q4 2024

Shares 12,007 Value ($000) $2,763 Avg Close $248.40 Range $220.10 - $267.11

Q3 2024

Shares 12,007 Value ($000) $2,902 Avg Close $235.10 Range $217.36 - $251.65

Q2 2024

Shares 12,107 Value ($000) $2,738 Avg Close $209.64 Range $189.32 - $231.15

Q1 2024

Shares 12,307 Value ($000) $2,478 Avg Close $179.73 Range $161.39 - $202.58

Q4 2023

Shares 12,107 Value ($000) $2,113 Avg Close $164.14 Range $132.92 - $179.49

Q3 2023

Shares 12,007 Value ($000) $2,009 Avg Close $168.59 Range $160.37 - $178.33

Q2 2023

Shares 12,407 Value ($000) $2,040 Avg Close $146.18 Range $129.70 - $164.80

Q1 2023

Shares 12,707 Value ($000) $1,812 Avg Close $130.22 Range $110.96 - $144.20

Q4 2022

Shares 12,807 Value ($000) $1,462 Avg Close $116.83 Range $109.07 - $125.41

Q3 2022

Shares 12,707 Value ($000) $1,398 Avg Close $107.08 Range $83.56 - $124.49

Q2 2022

Shares 12,707 Value ($000) $1,114 Avg Close $96.49 Range $81.56 - $115.00

Q1 2022

Shares 12,707 Value ($000) $1,419 Avg Close $98.73 Range $87.11 - $113.71

Q4 2021

Shares 12,656 Value ($000) $1,263 Avg Close $105.37 Range $90.25 - $118.89

Q3 2021

Shares 12,556 Value ($000) $1,304 Avg Close $98.39 Range $89.03 - $106.90

Q2 2021

Shares 12,656 Value ($000) $1,179 Avg Close $90.87 Range $83.56 - $96.47

Q1 2021

Shares 18,656 Value ($000) $1,568 Avg Close $84.13 Range $73.69 - $91.94

Q4 2020

Shares 18,556 Value ($000) $1,412 Avg Close $67.02 Range $52.22 - $77.16

Q3 2020

Shares 18,656 Value ($000) $1,045 Avg Close $59.23 Range $52.29 - $67.07

Q2 2020

Shares 18,656 Value ($000) $1,119 Avg Close $55.73 Range $44.36 - $71.22

Q1 2020

Shares 14,200 Value ($000) $729 Avg Close $73.03 Range $29.45 - $88.40

Q4 2019

Shares 15,100 Value ($000) $1,295 Avg Close $81.27 Range $71.31 - $88.01

Q3 2019

Shares 14,900 Value ($000) $1,150 Avg Close $73.96 Range $67.83 - $80.06

Q2 2019

Shares 15,000 Value ($000) $1,067 Avg Close $69.62 Range $62.54 - $77.24

Q1 2019

Shares 18,100 Value ($000) $1,295 Avg Close $61.79 Range $48.13 - $72.26

Q4 2018

Shares 18,200 Value ($000) $898 Avg Close $62.29 Range $46.21 - $72.46

Q3 2018

Shares 18,900 Value ($000) $1,353 Avg Close $63.60 Range $54.90 - $72.50

Q2 2018

Shares 18,800 Value ($000) $1,044 Avg Close $51.36 Range $44.75 - $56.00

Q1 2018

Shares 18,700 Value ($000) $913 Avg Close $52.41 Range $46.62 - $57.97

Q4 2017

Shares 18,600 Value ($000) $1,008 Avg Close $54.14 Range $51.43 - $58.22

Q3 2017

Shares 19,600 Value ($000) $1,111 Avg Close $54.44 Range $49.63 - $58.28

Q2 2017

Shares 21,500 Value ($000) $1,200 Avg Close $57.50 Range $53.17 - $61.62

Q1 2017

Shares 21,200 Value ($000) $1,179 Avg Close $55.34 Range $52.77 - $59.17

Q4 2016

Shares 21,000 Value ($000) $1,169 Avg Close $50.41 Range $43.03 - $58.23

Q3 2016

Shares 21,100 Value ($000) $1,012 Avg Close $49.57 Range $44.91 - $53.79

Q2 2016

Shares 21,000 Value ($000) $1,094 Avg Close $50.01 Range $46.40 - $54.54

Q1 2016

Shares 20,900 Value ($000) $1,031 Avg Close $43.78 Range $37.09 - $49.97

Q4 2015

Shares 20,700 Value ($000) $862 Avg Close $43.45 Range $39.89 - $48.05

Q3 2015

Shares 24,200 Value ($000) $1,064 Avg Close $49.63 Range $43.00 - $54.31

Q2 2015

Shares 24,300 Value ($000) $1,306 Avg Close $55.82 Range $50.65 - $59.29

Q1 2015

Shares 24,300 Value ($000) $1,380 Avg Close $51.78 Range $44.70 - $58.44

Q4 2014

Shares 26,000 Value ($000) $1,249 Avg Close $48.74 Range $43.05 - $53.84

Q3 2014

Shares 26,200 Value ($000) $1,413 Avg Close $58.81 Range $53.66 - $65.53

Q2 2014

Shares 26,100 Value ($000) $1,677 Avg Close $59.46 Range $52.02 - $64.30

Q1 2014

Shares 26,000 Value ($000) $1,425 Avg Close $54.49 Range $44.95 - $60.47

Q4 2013

Shares 25,800 Value ($000) $1,547 Avg Close $57.66 Range $51.77 - $64.12

Q3 2013

Shares 25,700 Value ($000) $1,508 Avg Close $55.80 Range $50.23 - $59.80

Q2 2013

Shares 24,800 Value ($000) $1,253 Avg Close $55.73 Range $50.37 - $61.28

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	11,907	$2,792	$228.49	$201.34 - $248.07
Q3 2025	12,007	$2,788	$236.75	$218.46 - $251.43
Q2 2025	12,107	$2,799	$218.92	$178.29 - $235.43
Q1 2025	12,107	$2,386	$218.84	$186.54 - $247.51
Q4 2024	12,007	$2,763	$248.40	$220.10 - $267.11
Q3 2024	12,007	$2,902	$235.10	$217.36 - $251.65
Q2 2024	12,107	$2,738	$209.64	$189.32 - $231.15
Q1 2024	12,307	$2,478	$179.73	$161.39 - $202.58
Q4 2023	12,107	$2,113	$164.14	$132.92 - $179.49
Q3 2023	12,007	$2,009	$168.59	$160.37 - $178.33
Q2 2023	12,407	$2,040	$146.18	$129.70 - $164.80
Q1 2023	12,707	$1,812	$130.22	$110.96 - $144.20
Q4 2022	12,807	$1,462	$116.83	$109.07 - $125.41
Q3 2022	12,707	$1,398	$107.08	$83.56 - $124.49
Q2 2022	12,707	$1,114	$96.49	$81.56 - $115.00
Q1 2022	12,707	$1,419	$98.73	$87.11 - $113.71
Q4 2021	12,656	$1,263	$105.37	$90.25 - $118.89
Q3 2021	12,556	$1,304	$98.39	$89.03 - $106.90
Q2 2021	12,656	$1,179	$90.87	$83.56 - $96.47
Q1 2021	18,656	$1,568	$84.13	$73.69 - $91.94
Q4 2020	18,556	$1,412	$67.02	$52.22 - $77.16
Q3 2020	18,656	$1,045	$59.23	$52.29 - $67.07
Q2 2020	18,656	$1,119	$55.73	$44.36 - $71.22
Q1 2020	14,200	$729	$73.03	$29.45 - $88.40
Q4 2019	15,100	$1,295	$81.27	$71.31 - $88.01
Q3 2019	14,900	$1,150	$73.96	$67.83 - $80.06
Q2 2019	15,000	$1,067	$69.62	$62.54 - $77.24
Q1 2019	18,100	$1,295	$61.79	$48.13 - $72.26
Q4 2018	18,200	$898	$62.29	$46.21 - $72.46
Q3 2018	18,900	$1,353	$63.60	$54.90 - $72.50
Q2 2018	18,800	$1,044	$51.36	$44.75 - $56.00
Q1 2018	18,700	$913	$52.41	$46.62 - $57.97
Q4 2017	18,600	$1,008	$54.14	$51.43 - $58.22
Q3 2017	19,600	$1,111	$54.44	$49.63 - $58.28
Q2 2017	21,500	$1,200	$57.50	$53.17 - $61.62
Q1 2017	21,200	$1,179	$55.34	$52.77 - $59.17
Q4 2016	21,000	$1,169	$50.41	$43.03 - $58.23
Q3 2016	21,100	$1,012	$49.57	$44.91 - $53.79
Q2 2016	21,000	$1,094	$50.01	$46.40 - $54.54
Q1 2016	20,900	$1,031	$43.78	$37.09 - $49.97
Q4 2015	20,700	$862	$43.45	$39.89 - $48.05
Q3 2015	24,200	$1,064	$49.63	$43.00 - $54.31
Q2 2015	24,300	$1,306	$55.82	$50.65 - $59.29
Q1 2015	24,300	$1,380	$51.78	$44.70 - $58.44
Q4 2014	26,000	$1,249	$48.74	$43.05 - $53.84
Q3 2014	26,200	$1,413	$58.81	$53.66 - $65.53
Q2 2014	26,100	$1,677	$59.46	$52.02 - $64.30
Q1 2014	26,000	$1,425	$54.49	$44.95 - $60.47
Q4 2013	25,800	$1,547	$57.66	$51.77 - $64.12
Q3 2013	25,700	$1,508	$55.80	$50.23 - $59.80
Q2 2013	24,800	$1,253	$55.73	$50.37 - $61.28