CLEAN HARBORS INC

Ticker: CLH CUSIP: 184496107 Class: EQTY

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0001081019)

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

Q4 2025

Shares 48,300 Value ($000) $11,325 Avg Close $228.49 Range $201.34 - $248.07

Q3 2025

Shares 47,401 Value ($000) $11,007 Avg Close $236.75 Range $218.46 - $251.43

Q2 2025

Shares 47,408 Value ($000) $10,960 Avg Close $218.92 Range $178.29 - $235.43

Q1 2025

Shares 47,408 Value ($000) $9,344 Avg Close $218.84 Range $186.54 - $247.51

Q4 2024

Shares 47,948 Value ($000) $11,035 Avg Close $248.40 Range $220.10 - $267.11

Q3 2024

Shares 48,473 Value ($000) $11,716 Avg Close $235.10 Range $217.36 - $251.65

Q2 2024

Shares 50,077 Value ($000) $11,325 Avg Close $209.64 Range $189.32 - $231.15

Q1 2024

Shares 51,366 Value ($000) $10,340 Avg Close $179.73 Range $161.39 - $202.58

Q4 2023

Shares 54,362 Value ($000) $9,487 Avg Close $164.14 Range $132.92 - $179.49

Q3 2023

Shares 56,717 Value ($000) $9,492 Avg Close $168.59 Range $160.37 - $178.33

Q2 2023

Shares 63,098 Value ($000) $10,375 Avg Close $146.18 Range $129.70 - $164.80

Q1 2023

Shares 64,209 Value ($000) $9,154 Avg Close $130.22 Range $110.96 - $144.20

Q4 2022

Shares 65,191 Value ($000) $7,440 Avg Close $116.83 Range $109.07 - $125.41

Q3 2022

Shares 64,744 Value ($000) $7,121 Avg Close $107.08 Range $83.56 - $124.49

Q2 2022

Shares 65,963 Value ($000) $5,783 Avg Close $96.49 Range $81.56 - $115.00

Q1 2022

Shares 65,825 Value ($000) $7,349 Avg Close $98.73 Range $87.11 - $113.71

Q4 2021

Shares 71,420 Value ($000) $7,126 Avg Close $105.37 Range $90.25 - $118.89

Q3 2021

Shares 85,988 Value ($000) $8,932 Avg Close $98.39 Range $89.03 - $106.90

Q2 2021

Shares 86,181 Value ($000) $8,027 Avg Close $90.87 Range $83.56 - $96.47

Q1 2021

Shares 89,386 Value ($000) $7,514 Avg Close $84.13 Range $73.69 - $91.94

Q4 2020

Shares 89,649 Value ($000) $6,822 Avg Close $67.02 Range $52.22 - $77.16

Q3 2020

Shares 88,167 Value ($000) $4,940 Avg Close $59.23 Range $52.29 - $67.07

Q2 2020

Shares 86,557 Value ($000) $5,192 Avg Close $55.73 Range $44.36 - $71.22

Q1 2020

Shares 85,808 Value ($000) $4,405 Avg Close $73.03 Range $29.45 - $88.40

Q4 2019

Shares 79,751 Value ($000) $6,839 Avg Close $81.27 Range $71.31 - $88.01

Q3 2019

Shares 82,123 Value ($000) $6,340 Avg Close $73.96 Range $67.83 - $80.06

Q2 2019

Shares 81,901 Value ($000) $5,823 Avg Close $69.62 Range $62.54 - $77.24

Q1 2019

Shares 81,441 Value ($000) $5,825 Avg Close $61.79 Range $48.13 - $72.26

Q4 2018

Shares 83,168 Value ($000) $4,104 Avg Close $62.29 Range $46.21 - $72.46

Q3 2018

Shares 83,955 Value ($000) $6,009 Avg Close $63.60 Range $54.90 - $72.50

Q2 2018

Shares 83,943 Value ($000) $4,663 Avg Close $51.36 Range $44.75 - $56.00

Q1 2018

Shares 81,723 Value ($000) $3,989 Avg Close $52.41 Range $46.62 - $57.97

Q4 2017

Shares 84,537 Value ($000) $4,582 Avg Close $54.14 Range $51.43 - $58.22

Q3 2017

Shares 85,311 Value ($000) $4,837 Avg Close $54.44 Range $49.63 - $58.28

Q2 2017

Shares 94,238 Value ($000) $5,261 Avg Close $57.50 Range $53.17 - $61.62

Q1 2017

Shares 106,829 Value ($000) $5,942 Avg Close $55.34 Range $52.77 - $59.17

Q4 2016

Shares 111,729 Value ($000) $6,218 Avg Close $50.41 Range $43.03 - $58.23

Q3 2016

Shares 114,529 Value ($000) $5,495 Avg Close $49.57 Range $44.91 - $53.79

Q2 2016

Shares 113,629 Value ($000) $5,921 Avg Close $50.01 Range $46.40 - $54.54

Q1 2016

Shares 125,776 Value ($000) $6,206 Avg Close $43.78 Range $37.09 - $49.97

Q4 2015

Shares 109,854 Value ($000) $4,575 Avg Close $43.45 Range $39.89 - $48.05

Q3 2015

Shares 108,156 Value ($000) $4,756 Avg Close $49.63 Range $43.00 - $54.31

Q2 2015

Shares 107,148 Value ($000) $5,758 Avg Close $55.82 Range $50.65 - $59.29

Q1 2015

Shares 112,266 Value ($000) $6,374 Avg Close $51.78 Range $44.70 - $58.44

Q4 2014

Shares 114,156 Value ($000) $5,485 Avg Close $48.74 Range $43.05 - $53.84

Q3 2014

Shares 113,073 Value ($000) $6,097 Avg Close $58.81 Range $53.66 - $65.53

Q2 2014

Shares 110,906 Value ($000) $7,126 Avg Close $59.46 Range $52.02 - $64.30

Q1 2014

Shares 110,106 Value ($000) $6,033 Avg Close $54.49 Range $44.95 - $60.47

Q4 2013

Shares 109,606 Value ($000) $6,572 Avg Close $57.66 Range $51.77 - $64.12

Q3 2013

Shares 108,906 Value ($000) $6,388 Avg Close $55.80 Range $50.23 - $59.80

Q2 2013

Shares 105,483 Value ($000) $5,330 Avg Close $55.73 Range $50.37 - $61.28

Q1 2013

Shares 93,372 Value ($000) $5,424 Avg Close $54.78 Range $48.22 - $60.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	48,300	$11,325	$228.49	$201.34 - $248.07
Q3 2025	47,401	$11,007	$236.75	$218.46 - $251.43
Q2 2025	47,408	$10,960	$218.92	$178.29 - $235.43
Q1 2025	47,408	$9,344	$218.84	$186.54 - $247.51
Q4 2024	47,948	$11,035	$248.40	$220.10 - $267.11
Q3 2024	48,473	$11,716	$235.10	$217.36 - $251.65
Q2 2024	50,077	$11,325	$209.64	$189.32 - $231.15
Q1 2024	51,366	$10,340	$179.73	$161.39 - $202.58
Q4 2023	54,362	$9,487	$164.14	$132.92 - $179.49
Q3 2023	56,717	$9,492	$168.59	$160.37 - $178.33
Q2 2023	63,098	$10,375	$146.18	$129.70 - $164.80
Q1 2023	64,209	$9,154	$130.22	$110.96 - $144.20
Q4 2022	65,191	$7,440	$116.83	$109.07 - $125.41
Q3 2022	64,744	$7,121	$107.08	$83.56 - $124.49
Q2 2022	65,963	$5,783	$96.49	$81.56 - $115.00
Q1 2022	65,825	$7,349	$98.73	$87.11 - $113.71
Q4 2021	71,420	$7,126	$105.37	$90.25 - $118.89
Q3 2021	85,988	$8,932	$98.39	$89.03 - $106.90
Q2 2021	86,181	$8,027	$90.87	$83.56 - $96.47
Q1 2021	89,386	$7,514	$84.13	$73.69 - $91.94
Q4 2020	89,649	$6,822	$67.02	$52.22 - $77.16
Q3 2020	88,167	$4,940	$59.23	$52.29 - $67.07
Q2 2020	86,557	$5,192	$55.73	$44.36 - $71.22
Q1 2020	85,808	$4,405	$73.03	$29.45 - $88.40
Q4 2019	79,751	$6,839	$81.27	$71.31 - $88.01
Q3 2019	82,123	$6,340	$73.96	$67.83 - $80.06
Q2 2019	81,901	$5,823	$69.62	$62.54 - $77.24
Q1 2019	81,441	$5,825	$61.79	$48.13 - $72.26
Q4 2018	83,168	$4,104	$62.29	$46.21 - $72.46
Q3 2018	83,955	$6,009	$63.60	$54.90 - $72.50
Q2 2018	83,943	$4,663	$51.36	$44.75 - $56.00
Q1 2018	81,723	$3,989	$52.41	$46.62 - $57.97
Q4 2017	84,537	$4,582	$54.14	$51.43 - $58.22
Q3 2017	85,311	$4,837	$54.44	$49.63 - $58.28
Q2 2017	94,238	$5,261	$57.50	$53.17 - $61.62
Q1 2017	106,829	$5,942	$55.34	$52.77 - $59.17
Q4 2016	111,729	$6,218	$50.41	$43.03 - $58.23
Q3 2016	114,529	$5,495	$49.57	$44.91 - $53.79
Q2 2016	113,629	$5,921	$50.01	$46.40 - $54.54
Q1 2016	125,776	$6,206	$43.78	$37.09 - $49.97
Q4 2015	109,854	$4,575	$43.45	$39.89 - $48.05
Q3 2015	108,156	$4,756	$49.63	$43.00 - $54.31
Q2 2015	107,148	$5,758	$55.82	$50.65 - $59.29
Q1 2015	112,266	$6,374	$51.78	$44.70 - $58.44
Q4 2014	114,156	$5,485	$48.74	$43.05 - $53.84
Q3 2014	113,073	$6,097	$58.81	$53.66 - $65.53
Q2 2014	110,906	$7,126	$59.46	$52.02 - $64.30
Q1 2014	110,106	$6,033	$54.49	$44.95 - $60.47
Q4 2013	109,606	$6,572	$57.66	$51.77 - $64.12
Q3 2013	108,906	$6,388	$55.80	$50.23 - $59.80
Q2 2013	105,483	$5,330	$55.73	$50.37 - $61.28
Q1 2013	93,372	$5,424	$54.78	$48.22 - $60.00