ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

Arizona State Retirement System's Holding History (CIK: 0001558481)

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

Q4 2025

Shares 72,358 Value ($000) $18,995 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 74,560 Value ($000) $20,419 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 74,625 Value ($000) $20,107 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 74,789 Value ($000) $18,961 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 73,518 Value ($000) $17,227 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 73,691 Value ($000) $18,816 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 74,601 Value ($000) $17,755 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 73,643 Value ($000) $17,004 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 72,174 Value ($000) $14,316 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 72,532 Value ($000) $12,287 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 73,234 Value ($000) $13,672 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 69,993 Value ($000) $11,586 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 69,887 Value ($000) $10,173 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 69,884 Value ($000) $10,093 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 70,802 Value ($000) $10,887 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 70,770 Value ($000) $12,495 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 70,518 Value ($000) $16,543 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 71,763 Value ($000) $14,971 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 71,977 Value ($000) $14,825 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 72,396 Value ($000) $15,498 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 83,919 Value ($000) $18,157 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 77,551 Value ($000) $15,498 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 59,900 Value ($000) $11,917 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 75,087 Value ($000) $11,701 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 66,244 Value ($000) $12,784 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 63,921 Value ($000) $12,659 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 64,977 Value ($000) $12,829 Avg Close $173.21 Range $164.99 - $187.12

Q1 2019

Shares 67,969 Value ($000) $11,999 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 72,768 Value ($000) $10,722 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 77,231 Value ($000) $12,108 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 77,829 Value ($000) $10,922 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 73,613 Value ($000) $10,090 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 75,113 Value ($000) $10,079 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 72,885 Value ($000) $9,374 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 77,936 Value ($000) $10,346 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 80,136 Value ($000) $10,044 Avg Close $111.04 Range $106.47 - $114.69

Q4 2016

Shares 79,936 Value ($000) $9,370 Avg Close $105.98 Range $100.13 - $110.74

Q3 2016

Shares 79,636 Value ($000) $9,693 Avg Close $108.98 Range $105.46 - $112.42

Q2 2016

Shares 79,736 Value ($000) $9,457 Avg Close $104.92 Range $98.81 - $109.58

Q1 2016

Shares 88,436 Value ($000) $9,862 Avg Close $95.34 Range $88.43 - $102.02

Q4 2015

Shares 87,836 Value ($000) $10,047 Avg Close $105.21 Range $98.01 - $109.49

Q3 2015

Shares 107,336 Value ($000) $11,777 Avg Close $99.79 Range $91.88 - $104.89

Q4 2014

Shares 139,836 Value ($000) $14,615 Avg Close $96.70 Range $89.74 - $101.94

Q3 2014

Shares 139,036 Value ($000) $15,965 Avg Close $99.26 Range $94.57 - $104.65

Q2 2014

Shares 142,436 Value ($000) $15,858 Avg Close $94.25 Range $89.51 - $98.33

Q1 2014

Shares 141,536 Value ($000) $15,284 Avg Close $91.92 Range $85.62 - $98.30

Q4 2013

Shares 143,836 Value ($000) $14,997 Avg Close $90.95 Range $84.34 - $94.74

Q3 2013

Shares 151,636 Value ($000) $14,975 Avg Close $81.20 Range $74.57 - $86.97

Q2 2013

Shares 149,636 Value ($000) $12,747 Avg Close $73.48 Range $68.51 - $77.84

Q1 2013

Shares 149,436 Value ($000) $11,981 Avg Close $65.61 Range $62.45 - $70.20

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	72,358	$18,995	$265.71	$251.04 - $281.41
Q3 2025	74,560	$20,419	$270.32	$253.71 - $284.56
Q2 2025	74,625	$20,107	$252.35	$219.93 - $269.19
Q1 2025	74,789	$18,961	$249.61	$225.31 - $270.90
Q4 2024	73,518	$17,227	$245.53	$230.70 - $259.26
Q3 2024	73,691	$18,816	$241.07	$217.65 - $253.31
Q2 2024	74,601	$17,755	$227.14	$213.29 - $242.24
Q1 2024	73,643	$17,004	$207.94	$189.63 - $227.85
Q4 2023	72,174	$14,316	$175.85	$153.18 - $197.06
Q3 2023	72,532	$12,287	$177.30	$163.22 - $186.52
Q2 2023	73,234	$13,672	$167.31	$156.95 - $182.94
Q1 2023	69,993	$11,586	$150.99	$139.35 - $161.29
Q4 2022	69,887	$10,173	$141.81	$126.42 - $153.48
Q3 2022	69,884	$10,093	$156.07	$138.29 - $171.23
Q2 2022	70,802	$10,887	$158.99	$137.82 - $177.76
Q1 2022	70,770	$12,495	$179.54	$147.91 - $226.74
Q4 2021	70,518	$16,543	$215.53	$199.33 - $227.72
Q3 2021	71,763	$14,971	$208.54	$195.25 - $219.93
Q2 2021	71,977	$14,825	$206.33	$194.28 - $218.25
Q1 2021	72,396	$15,498	$201.55	$190.45 - $215.84
Q4 2020	83,919	$18,157	$197.47	$171.24 - $214.73
Q3 2020	77,551	$15,498	$188.44	$172.53 - $201.15
Q2 2020	59,900	$11,917	$182.16	$136.65 - $217.57
Q1 2020	75,087	$11,701	$176.33	$117.17 - $198.13
Q4 2019	66,244	$12,784	$177.67	$169.74 - $186.58
Q3 2019	63,921	$12,659	$187.16	$179.22 - $195.89
Q2 2019	64,977	$12,829	$173.21	$164.99 - $187.12
Q1 2019	67,969	$11,999	$150.92	$131.24 - $169.66
Q4 2018	72,768	$10,722	$141.48	$126.10 - $150.86
Q3 2018	77,231	$12,108	$137.00	$128.06 - $148.09
Q2 2018	77,829	$10,922	$132.91	$122.30 - $138.58
Q1 2018	73,613	$10,090	$123.54	$115.47 - $129.02
Q4 2017	75,113	$10,079	$121.85	$117.53 - $126.30
Q3 2017	72,885	$9,374	$120.10	$116.11 - $122.59
Q2 2017	77,936	$10,346	$117.68	$113.27 - $123.01
Q1 2017	80,136	$10,044	$111.04	$106.47 - $114.69
Q4 2016	79,936	$9,370	$105.98	$100.13 - $110.74
Q3 2016	79,636	$9,693	$108.98	$105.46 - $112.42
Q2 2016	79,736	$9,457	$104.92	$98.81 - $109.58
Q1 2016	88,436	$9,862	$95.34	$88.43 - $102.02
Q4 2015	87,836	$10,047	$105.21	$98.01 - $109.49
Q3 2015	107,336	$11,777	$99.79	$91.88 - $104.89
Q4 2014	139,836	$14,615	$96.70	$89.74 - $101.94
Q3 2014	139,036	$15,965	$99.26	$94.57 - $104.65
Q2 2014	142,436	$15,858	$94.25	$89.51 - $98.33
Q1 2014	141,536	$15,284	$91.92	$85.62 - $98.30
Q4 2013	143,836	$14,997	$90.95	$84.34 - $94.74
Q3 2013	151,636	$14,975	$81.20	$74.57 - $86.97
Q2 2013	149,636	$12,747	$73.48	$68.51 - $77.84
Q1 2013	149,436	$11,981	$65.61	$62.45 - $70.20