CLEAN HARBORS INC

Ticker: CLH CUSIP: 184496107 Class: EQTY

Louisiana State Employees Retirement System's Holding History (CIK: 0001537191)

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

Q4 2025

Shares 13,900 Value ($000) $3,259 Avg Close $228.49 Range $201.34 - $248.07

Q3 2025

Shares 14,000 Value ($000) $3,251 Avg Close $236.75 Range $218.46 - $251.43

Q2 2025

Shares 14,200 Value ($000) $3,283 Avg Close $218.92 Range $178.29 - $235.43

Q1 2025

Shares 14,200 Value ($000) $2,799 Avg Close $218.84 Range $186.54 - $247.51

Q4 2024

Shares 14,100 Value ($000) $3,245 Avg Close $248.40 Range $220.10 - $267.11

Q3 2024

Shares 14,100 Value ($000) $3,408 Avg Close $235.10 Range $217.36 - $251.65

Q2 2024

Shares 14,200 Value ($000) $3,211 Avg Close $209.64 Range $189.32 - $231.15

Q1 2024

Shares 14,500 Value ($000) $2,919 Avg Close $179.73 Range $161.39 - $202.58

Q4 2023

Shares 14,100 Value ($000) $2,461 Avg Close $164.14 Range $132.92 - $179.49

Q3 2023

Shares 14,300 Value ($000) $2,393 Avg Close $168.59 Range $160.37 - $178.33

Q2 2023

Shares 14,700 Value ($000) $2,417 Avg Close $146.18 Range $129.70 - $164.80

Q1 2023

Shares 13,300 Value ($000) $1,896 Avg Close $130.22 Range $110.96 - $144.20

Q4 2022

Shares 13,500 Value ($000) $2 Avg Close $116.83 Range $109.07 - $125.41

Q3 2022

Shares 13,400 Value ($000) $1,474 Avg Close $107.08 Range $83.56 - $124.49

Q2 2022

Shares 13,200 Value ($000) $1,189 Avg Close $96.49 Range $81.56 - $115.00

Q1 2022

Shares 13,100 Value ($000) $1,442 Avg Close $98.73 Range $87.11 - $113.71

Q4 2021

Shares 12,900 Value ($000) $1,287 Avg Close $105.37 Range $90.25 - $118.89

Q3 2021

Shares 12,800 Value ($000) $1,330 Avg Close $98.39 Range $89.03 - $106.90

Q2 2021

Shares 13,000 Value ($000) $1,211 Avg Close $90.87 Range $83.56 - $96.47

Q1 2021

Shares 13,100 Value ($000) $1,101 Avg Close $84.13 Range $73.69 - $91.94

Q4 2020

Shares 12,700 Value ($000) $966 Avg Close $67.02 Range $52.22 - $77.16

Q3 2020

Shares 12,800 Value ($000) $717 Avg Close $59.23 Range $52.29 - $67.07

Q2 2020

Shares 12,800 Value ($000) $768 Avg Close $55.73 Range $44.36 - $71.22

Q1 2020

Shares 12,400 Value ($000) $637 Avg Close $73.03 Range $29.45 - $88.40

Q4 2019

Shares 12,400 Value ($000) $1,063 Avg Close $81.27 Range $71.31 - $88.01

Q3 2019

Shares 12,400 Value ($000) $957 Avg Close $73.96 Range $67.83 - $80.06

Q2 2019

Shares 13,000 Value ($000) $907 Avg Close $69.62 Range $62.54 - $77.24

Q1 2019

Shares 13,600 Value ($000) $973 Avg Close $61.79 Range $48.13 - $72.26

Q4 2018

Shares 13,500 Value ($000) $666 Avg Close $62.29 Range $46.21 - $72.46

Q3 2018

Shares 14,000 Value ($000) $1,002 Avg Close $63.60 Range $54.90 - $72.50

Q2 2018

Shares 13,800 Value ($000) $767 Avg Close $51.36 Range $44.75 - $56.00

Q1 2018

Shares 13,500 Value ($000) $659 Avg Close $52.41 Range $46.62 - $57.97

Q4 2017

Shares 13,100 Value ($000) $710 Avg Close $54.14 Range $51.43 - $58.22

Q3 2017

Shares 13,900 Value ($000) $788 Avg Close $54.44 Range $49.63 - $58.28

Q2 2017

Shares 13,600 Value ($000) $759 Avg Close $57.50 Range $53.17 - $61.62

Q1 2017

Shares 13,200 Value ($000) $734 Avg Close $55.34 Range $52.77 - $59.17

Q4 2016

Shares 12,900 Value ($000) $718 Avg Close $50.41 Range $43.03 - $58.23

Q3 2016

Shares 13,500 Value ($000) $648 Avg Close $49.57 Range $44.91 - $53.79

Q2 2016

Shares 13,900 Value ($000) $724 Avg Close $50.01 Range $46.40 - $54.54

Q1 2016

Shares 14,500 Value ($000) $715 Avg Close $43.78 Range $37.09 - $49.97

Q4 2015

Shares 14,500 Value ($000) $604 Avg Close $43.45 Range $39.89 - $48.05

Q3 2015

Shares 14,300 Value ($000) $629 Avg Close $49.63 Range $43.00 - $54.31

Q2 2015

Shares 14,100 Value ($000) $758 Avg Close $55.82 Range $50.65 - $59.29

Q1 2015

Shares 13,700 Value ($000) $778 Avg Close $51.78 Range $44.70 - $58.44

Q4 2014

Shares 14,900 Value ($000) $716 Avg Close $48.74 Range $43.05 - $53.84

Q3 2014

Shares 15,000 Value ($000) $809 Avg Close $58.81 Range $53.66 - $65.53

Q2 2014

Shares 14,900 Value ($000) $957 Avg Close $59.46 Range $52.02 - $64.30

Q1 2014

Shares 14,800 Value ($000) $811 Avg Close $54.49 Range $44.95 - $60.47

Q4 2013

Shares 15,100 Value ($000) $905 Avg Close $57.66 Range $51.77 - $64.12

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	13,900	$3,259	$228.49	$201.34 - $248.07
Q3 2025	14,000	$3,251	$236.75	$218.46 - $251.43
Q2 2025	14,200	$3,283	$218.92	$178.29 - $235.43
Q1 2025	14,200	$2,799	$218.84	$186.54 - $247.51
Q4 2024	14,100	$3,245	$248.40	$220.10 - $267.11
Q3 2024	14,100	$3,408	$235.10	$217.36 - $251.65
Q2 2024	14,200	$3,211	$209.64	$189.32 - $231.15
Q1 2024	14,500	$2,919	$179.73	$161.39 - $202.58
Q4 2023	14,100	$2,461	$164.14	$132.92 - $179.49
Q3 2023	14,300	$2,393	$168.59	$160.37 - $178.33
Q2 2023	14,700	$2,417	$146.18	$129.70 - $164.80
Q1 2023	13,300	$1,896	$130.22	$110.96 - $144.20
Q4 2022	13,500	$2	$116.83	$109.07 - $125.41
Q3 2022	13,400	$1,474	$107.08	$83.56 - $124.49
Q2 2022	13,200	$1,189	$96.49	$81.56 - $115.00
Q1 2022	13,100	$1,442	$98.73	$87.11 - $113.71
Q4 2021	12,900	$1,287	$105.37	$90.25 - $118.89
Q3 2021	12,800	$1,330	$98.39	$89.03 - $106.90
Q2 2021	13,000	$1,211	$90.87	$83.56 - $96.47
Q1 2021	13,100	$1,101	$84.13	$73.69 - $91.94
Q4 2020	12,700	$966	$67.02	$52.22 - $77.16
Q3 2020	12,800	$717	$59.23	$52.29 - $67.07
Q2 2020	12,800	$768	$55.73	$44.36 - $71.22
Q1 2020	12,400	$637	$73.03	$29.45 - $88.40
Q4 2019	12,400	$1,063	$81.27	$71.31 - $88.01
Q3 2019	12,400	$957	$73.96	$67.83 - $80.06
Q2 2019	13,000	$907	$69.62	$62.54 - $77.24
Q1 2019	13,600	$973	$61.79	$48.13 - $72.26
Q4 2018	13,500	$666	$62.29	$46.21 - $72.46
Q3 2018	14,000	$1,002	$63.60	$54.90 - $72.50
Q2 2018	13,800	$767	$51.36	$44.75 - $56.00
Q1 2018	13,500	$659	$52.41	$46.62 - $57.97
Q4 2017	13,100	$710	$54.14	$51.43 - $58.22
Q3 2017	13,900	$788	$54.44	$49.63 - $58.28
Q2 2017	13,600	$759	$57.50	$53.17 - $61.62
Q1 2017	13,200	$734	$55.34	$52.77 - $59.17
Q4 2016	12,900	$718	$50.41	$43.03 - $58.23
Q3 2016	13,500	$648	$49.57	$44.91 - $53.79
Q2 2016	13,900	$724	$50.01	$46.40 - $54.54
Q1 2016	14,500	$715	$43.78	$37.09 - $49.97
Q4 2015	14,500	$604	$43.45	$39.89 - $48.05
Q3 2015	14,300	$629	$49.63	$43.00 - $54.31
Q2 2015	14,100	$758	$55.82	$50.65 - $59.29
Q1 2015	13,700	$778	$51.78	$44.70 - $58.44
Q4 2014	14,900	$716	$48.74	$43.05 - $53.84
Q3 2014	15,000	$809	$58.81	$53.66 - $65.53
Q2 2014	14,900	$957	$59.46	$52.02 - $64.30
Q1 2014	14,800	$811	$54.49	$44.95 - $60.47
Q4 2013	15,100	$905	$57.66	$51.77 - $64.12