CLEAN HARBORS INC

Ticker: CLH CUSIP: 184496107 Class: EQTY

STRS OHIO's Holding History (CIK: 0000820478)

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

Q4 2025

Shares 21,413 Value ($000) $5,021 Avg Close $228.49 Range $201.34 - $248.07

Q3 2025

Shares 43,411 Value ($000) $10,081 Avg Close $236.75 Range $218.46 - $251.43

Q2 2025

Shares 42,059 Value ($000) $9,723 Avg Close $218.92 Range $178.29 - $235.43

Q1 2025

Shares 158,863 Value ($000) $31,312 Avg Close $218.84 Range $186.54 - $247.51

Q4 2024

Shares 162,191 Value ($000) $37,327 Avg Close $248.40 Range $220.10 - $267.11

Q3 2024

Shares 220,372 Value ($000) $53,266 Avg Close $235.10 Range $217.36 - $251.65

Q2 2024

Shares 217,439 Value ($000) $49,174 Avg Close $209.64 Range $189.32 - $231.15

Q1 2024

Shares 194,859 Value ($000) $39 Avg Close $179.73 Range $161.39 - $202.58

Q4 2023

Shares 193,721 Value ($000) $34 Avg Close $164.14 Range $132.92 - $179.49

Q3 2023

Shares 194,413 Value ($000) $33 Avg Close $168.59 Range $160.37 - $178.33

Q2 2023

Shares 183,886 Value ($000) $30 Avg Close $146.18 Range $129.70 - $164.80

Q1 2023

Shares 18,177 Value ($000) $3 Avg Close $130.22 Range $110.96 - $144.20

Q4 2022

Shares 20,868 Value ($000) $2 Avg Close $116.83 Range $109.07 - $125.41

Q3 2022

Shares 14,170 Value ($000) $1,558 Avg Close $107.08 Range $83.56 - $124.49

Q2 2022

Shares 17,732 Value ($000) $1,554 Avg Close $96.49 Range $81.56 - $115.00

Q1 2022

Shares 17,093 Value ($000) $1,908 Avg Close $98.73 Range $87.11 - $113.71

Q4 2021

Shares 17,878 Value ($000) $1,783 Avg Close $105.37 Range $90.25 - $118.89

Q3 2021

Shares 19,921 Value ($000) $2,069 Avg Close $98.39 Range $89.03 - $106.90

Q2 2021

Shares 20,613 Value ($000) $1,919 Avg Close $90.87 Range $83.56 - $96.47

Q1 2021

Shares 19,905 Value ($000) $1,673 Avg Close $84.13 Range $73.69 - $91.94

Q4 2020

Shares 15,470 Value ($000) $1,177 Avg Close $67.02 Range $52.22 - $77.16

Q2 2020

Shares 11,256 Value ($000) $675 Avg Close $55.73 Range $44.36 - $71.22

Q1 2020

Shares 11,536 Value ($000) $592 Avg Close $73.03 Range $29.45 - $88.40

Q4 2019

Shares 10,494 Value ($000) $899 Avg Close $81.27 Range $71.31 - $88.01

Q3 2019

Shares 4,981 Value ($000) $384 Avg Close $73.96 Range $67.83 - $80.06

Q2 2019

Shares 5,088 Value ($000) $361 Avg Close $69.62 Range $62.54 - $77.24

Q1 2019

Shares 5,789 Value ($000) $414 Avg Close $61.79 Range $48.13 - $72.26

Q4 2018

Shares 8,847 Value ($000) $436 Avg Close $62.29 Range $46.21 - $72.46

Q3 2018

Shares 7,185 Value ($000) $514 Avg Close $63.60 Range $54.90 - $72.50

Q2 2018

Shares 6,560 Value ($000) $364 Avg Close $51.36 Range $44.75 - $56.00

Q4 2014

Shares 186,734 Value ($000) $8,973 Avg Close $48.74 Range $43.05 - $53.84

Q3 2014

Shares 189,634 Value ($000) $10,225 Avg Close $58.81 Range $53.66 - $65.53

Q2 2014

Shares 189,634 Value ($000) $12,184 Avg Close $59.46 Range $52.02 - $64.30

Q1 2014

Shares 189,634 Value ($000) $10,390 Avg Close $54.49 Range $44.95 - $60.47

Q4 2013

Shares 196,234 Value ($000) $11,766 Avg Close $57.66 Range $51.77 - $64.12

Q3 2013

Shares 245,000 Value ($000) $14,372 Avg Close $55.80 Range $50.23 - $59.80

Q2 2013

Shares 200,000 Value ($000) $10,106 Avg Close $55.73 Range $50.37 - $61.28

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	21,413	$5,021	$228.49	$201.34 - $248.07
Q3 2025	43,411	$10,081	$236.75	$218.46 - $251.43
Q2 2025	42,059	$9,723	$218.92	$178.29 - $235.43
Q1 2025	158,863	$31,312	$218.84	$186.54 - $247.51
Q4 2024	162,191	$37,327	$248.40	$220.10 - $267.11
Q3 2024	220,372	$53,266	$235.10	$217.36 - $251.65
Q2 2024	217,439	$49,174	$209.64	$189.32 - $231.15
Q1 2024	194,859	$39	$179.73	$161.39 - $202.58
Q4 2023	193,721	$34	$164.14	$132.92 - $179.49
Q3 2023	194,413	$33	$168.59	$160.37 - $178.33
Q2 2023	183,886	$30	$146.18	$129.70 - $164.80
Q1 2023	18,177	$3	$130.22	$110.96 - $144.20
Q4 2022	20,868	$2	$116.83	$109.07 - $125.41
Q3 2022	14,170	$1,558	$107.08	$83.56 - $124.49
Q2 2022	17,732	$1,554	$96.49	$81.56 - $115.00
Q1 2022	17,093	$1,908	$98.73	$87.11 - $113.71
Q4 2021	17,878	$1,783	$105.37	$90.25 - $118.89
Q3 2021	19,921	$2,069	$98.39	$89.03 - $106.90
Q2 2021	20,613	$1,919	$90.87	$83.56 - $96.47
Q1 2021	19,905	$1,673	$84.13	$73.69 - $91.94
Q4 2020	15,470	$1,177	$67.02	$52.22 - $77.16
Q2 2020	11,256	$675	$55.73	$44.36 - $71.22
Q1 2020	11,536	$592	$73.03	$29.45 - $88.40
Q4 2019	10,494	$899	$81.27	$71.31 - $88.01
Q3 2019	4,981	$384	$73.96	$67.83 - $80.06
Q2 2019	5,088	$361	$69.62	$62.54 - $77.24
Q1 2019	5,789	$414	$61.79	$48.13 - $72.26
Q4 2018	8,847	$436	$62.29	$46.21 - $72.46
Q3 2018	7,185	$514	$63.60	$54.90 - $72.50
Q2 2018	6,560	$364	$51.36	$44.75 - $56.00
Q4 2014	186,734	$8,973	$48.74	$43.05 - $53.84
Q3 2014	189,634	$10,225	$58.81	$53.66 - $65.53
Q2 2014	189,634	$12,184	$59.46	$52.02 - $64.30
Q1 2014	189,634	$10,390	$54.49	$44.95 - $60.47
Q4 2013	196,234	$11,766	$57.66	$51.77 - $64.12
Q3 2013	245,000	$14,372	$55.80	$50.23 - $59.80
Q2 2013	200,000	$10,106	$55.73	$50.37 - $61.28