CLEAN HARBORS INC

Ticker: CLH CUSIP: 184496107 Class: EQTY

TEACHERS RETIREMENT SYSTEM OF THE STATE OF KENTUCKY's Holding History (CIK: 0000714142)

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

Q4 2025

Shares 20,440 Value ($000) $5 Avg Close $228.49 Range $201.34 - $248.07

Q3 2025

Shares 21,392 Value ($000) $5 Avg Close $236.75 Range $218.46 - $251.43

Q2 2025

Shares 24,814 Value ($000) $6 Avg Close $218.92 Range $178.29 - $235.43

Q1 2025

Shares 23,349 Value ($000) $5 Avg Close $218.84 Range $186.54 - $247.51

Q4 2024

Shares 15,152 Value ($000) $3 Avg Close $248.40 Range $220.10 - $267.11

Q3 2024

Shares 15,942 Value ($000) $4 Avg Close $235.10 Range $217.36 - $251.65

Q2 2024

Shares 20,779 Value ($000) $5 Avg Close $209.64 Range $189.32 - $231.15

Q1 2024

Shares 20,779 Value ($000) $4 Avg Close $179.73 Range $161.39 - $202.58

Q4 2023

Shares 26,824 Value ($000) $5 Avg Close $164.14 Range $132.92 - $179.49

Q3 2023

Shares 28,935 Value ($000) $5 Avg Close $168.59 Range $160.37 - $178.33

Q2 2023

Shares 20,637 Value ($000) $3 Avg Close $146.18 Range $129.70 - $164.80

Q1 2023

Shares 24,095 Value ($000) $3 Avg Close $130.22 Range $110.96 - $144.20

Q4 2022

Shares 24,095 Value ($000) $3 Avg Close $116.83 Range $109.07 - $125.41

Q3 2022

Shares 23,193 Value ($000) $2,551 Avg Close $107.08 Range $83.56 - $124.49

Q1 2022

Shares 20,980 Value ($000) $2,342 Avg Close $98.73 Range $87.11 - $113.71

Q4 2021

Shares 21,095 Value ($000) $2,105 Avg Close $105.37 Range $90.25 - $118.89

Q3 2021

Shares 21,095 Value ($000) $2,192 Avg Close $98.39 Range $89.03 - $106.90

Q2 2021

Shares 21,095 Value ($000) $1,964 Avg Close $90.87 Range $83.56 - $96.47

Q1 2021

Shares 26,620 Value ($000) $2,238 Avg Close $84.13 Range $73.69 - $91.94

Q4 2020

Shares 28,543 Value ($000) $2,172 Avg Close $67.02 Range $52.22 - $77.16

Q3 2020

Shares 28,543 Value ($000) $1,599 Avg Close $59.23 Range $52.29 - $67.07

Q2 2020

Shares 27,971 Value ($000) $1,678 Avg Close $55.73 Range $44.36 - $71.22

Q1 2020

Shares 27,971 Value ($000) $1,436 Avg Close $73.03 Range $29.45 - $88.40

Q4 2019

Shares 28,141 Value ($000) $2,413 Avg Close $81.27 Range $71.31 - $88.01

Q3 2019

Shares 28,141 Value ($000) $2,172 Avg Close $73.96 Range $67.83 - $80.06

Q2 2019

Shares 28,141 Value ($000) $2,001 Avg Close $69.62 Range $62.54 - $77.24

Q1 2019

Shares 32,405 Value ($000) $2,318 Avg Close $61.79 Range $48.13 - $72.26

Q4 2018

Shares 32,405 Value ($000) $1,599 Avg Close $62.29 Range $46.21 - $72.46

Q3 2018

Shares 29,645 Value ($000) $2,122 Avg Close $63.60 Range $54.90 - $72.50

Q2 2018

Shares 30,189 Value ($000) $1,677 Avg Close $51.36 Range $44.75 - $56.00

Q1 2018

Shares 30,189 Value ($000) $1,474 Avg Close $52.41 Range $46.62 - $57.97

Q4 2017

Shares 8,530 Value ($000) $462 Avg Close $54.14 Range $51.43 - $58.22

Q3 2017

Shares 8,530 Value ($000) $484 Avg Close $54.44 Range $49.63 - $58.28

Q2 2017

Shares 8,530 Value ($000) $476 Avg Close $57.50 Range $53.17 - $61.62

Q1 2017

Shares 9,330 Value ($000) $519 Avg Close $55.34 Range $52.77 - $59.17

Q4 2016

Shares 13,000 Value ($000) $723 Avg Close $50.41 Range $43.03 - $58.23

Q3 2016

Shares 48,888 Value ($000) $2,346 Avg Close $49.57 Range $44.91 - $53.79

Q2 2016

Shares 60,695 Value ($000) $3,162 Avg Close $50.01 Range $46.40 - $54.54

Q1 2016

Shares 63,800 Value ($000) $3,148 Avg Close $43.78 Range $37.09 - $49.97

Q4 2015

Shares 67,900 Value ($000) $2,828 Avg Close $43.45 Range $39.89 - $48.05

Q3 2015

Shares 67,900 Value ($000) $2,986 Avg Close $49.63 Range $43.00 - $54.31

Q2 2015

Shares 67,900 Value ($000) $3,649 Avg Close $55.82 Range $50.65 - $59.29

Q1 2015

Shares 72,874 Value ($000) $4,138 Avg Close $51.78 Range $44.70 - $58.44

Q4 2014

Shares 72,160 Value ($000) $3,467 Avg Close $48.74 Range $43.05 - $53.84

Q3 2014

Shares 75,115 Value ($000) $4,050 Avg Close $58.81 Range $53.66 - $65.53

Q2 2014

Shares 77,315 Value ($000) $4,967 Avg Close $59.46 Range $52.02 - $64.30

Q1 2014

Shares 81,745 Value ($000) $4,479 Avg Close $54.49 Range $44.95 - $60.47

Q4 2013

Shares 69,470 Value ($000) $4,166 Avg Close $57.66 Range $51.77 - $64.12

Q3 2013

Shares 59,646 Value ($000) $3,499 Avg Close $55.80 Range $50.23 - $59.80

Q2 2013

Shares 12,400 Value ($000) $627 Avg Close $55.73 Range $50.37 - $61.28

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	20,440	$5	$228.49	$201.34 - $248.07
Q3 2025	21,392	$5	$236.75	$218.46 - $251.43
Q2 2025	24,814	$6	$218.92	$178.29 - $235.43
Q1 2025	23,349	$5	$218.84	$186.54 - $247.51
Q4 2024	15,152	$3	$248.40	$220.10 - $267.11
Q3 2024	15,942	$4	$235.10	$217.36 - $251.65
Q2 2024	20,779	$5	$209.64	$189.32 - $231.15
Q1 2024	20,779	$4	$179.73	$161.39 - $202.58
Q4 2023	26,824	$5	$164.14	$132.92 - $179.49
Q3 2023	28,935	$5	$168.59	$160.37 - $178.33
Q2 2023	20,637	$3	$146.18	$129.70 - $164.80
Q1 2023	24,095	$3	$130.22	$110.96 - $144.20
Q4 2022	24,095	$3	$116.83	$109.07 - $125.41
Q3 2022	23,193	$2,551	$107.08	$83.56 - $124.49
Q1 2022	20,980	$2,342	$98.73	$87.11 - $113.71
Q4 2021	21,095	$2,105	$105.37	$90.25 - $118.89
Q3 2021	21,095	$2,192	$98.39	$89.03 - $106.90
Q2 2021	21,095	$1,964	$90.87	$83.56 - $96.47
Q1 2021	26,620	$2,238	$84.13	$73.69 - $91.94
Q4 2020	28,543	$2,172	$67.02	$52.22 - $77.16
Q3 2020	28,543	$1,599	$59.23	$52.29 - $67.07
Q2 2020	27,971	$1,678	$55.73	$44.36 - $71.22
Q1 2020	27,971	$1,436	$73.03	$29.45 - $88.40
Q4 2019	28,141	$2,413	$81.27	$71.31 - $88.01
Q3 2019	28,141	$2,172	$73.96	$67.83 - $80.06
Q2 2019	28,141	$2,001	$69.62	$62.54 - $77.24
Q1 2019	32,405	$2,318	$61.79	$48.13 - $72.26
Q4 2018	32,405	$1,599	$62.29	$46.21 - $72.46
Q3 2018	29,645	$2,122	$63.60	$54.90 - $72.50
Q2 2018	30,189	$1,677	$51.36	$44.75 - $56.00
Q1 2018	30,189	$1,474	$52.41	$46.62 - $57.97
Q4 2017	8,530	$462	$54.14	$51.43 - $58.22
Q3 2017	8,530	$484	$54.44	$49.63 - $58.28
Q2 2017	8,530	$476	$57.50	$53.17 - $61.62
Q1 2017	9,330	$519	$55.34	$52.77 - $59.17
Q4 2016	13,000	$723	$50.41	$43.03 - $58.23
Q3 2016	48,888	$2,346	$49.57	$44.91 - $53.79
Q2 2016	60,695	$3,162	$50.01	$46.40 - $54.54
Q1 2016	63,800	$3,148	$43.78	$37.09 - $49.97
Q4 2015	67,900	$2,828	$43.45	$39.89 - $48.05
Q3 2015	67,900	$2,986	$49.63	$43.00 - $54.31
Q2 2015	67,900	$3,649	$55.82	$50.65 - $59.29
Q1 2015	72,874	$4,138	$51.78	$44.70 - $58.44
Q4 2014	72,160	$3,467	$48.74	$43.05 - $53.84
Q3 2014	75,115	$4,050	$58.81	$53.66 - $65.53
Q2 2014	77,315	$4,967	$59.46	$52.02 - $64.30
Q1 2014	81,745	$4,479	$54.49	$44.95 - $60.47
Q4 2013	69,470	$4,166	$57.66	$51.77 - $64.12
Q3 2013	59,646	$3,499	$55.80	$50.23 - $59.80
Q2 2013	12,400	$627	$55.73	$50.37 - $61.28