ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

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

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

Q4 2025

Shares 19,768 Value ($000) $5 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 19,768 Value ($000) $5 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 19,768 Value ($000) $5 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 19,478 Value ($000) $5 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 18,851 Value ($000) $4 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 18,851 Value ($000) $5 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 20,056 Value ($000) $5 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 20,675 Value ($000) $5 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 21,707 Value ($000) $4 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 22,308 Value ($000) $4 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 22,308 Value ($000) $4 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 23,170 Value ($000) $4 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 23,170 Value ($000) $3 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 23,170 Value ($000) $3,347 Avg Close $156.07 Range $138.29 - $171.23

Q1 2022

Shares 17,578 Value ($000) $3,104 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 18,343 Value ($000) $4,303 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 18,850 Value ($000) $3,932 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 18,850 Value ($000) $3,883 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 18,850 Value ($000) $4,035 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 20,600 Value ($000) $4,457 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 22,100 Value ($000) $4,416 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 23,100 Value ($000) $4,596 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 25,900 Value ($000) $4,036 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 25,250 Value ($000) $4,873 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 25,250 Value ($000) $5,001 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 23,750 Value ($000) $4,689 Avg Close $173.21 Range $164.99 - $187.12

Q1 2019

Shares 25,250 Value ($000) $4,458 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 27,250 Value ($000) $4,015 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 25,150 Value ($000) $3,943 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 27,650 Value ($000) $3,880 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 27,650 Value ($000) $3,790 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 26,750 Value ($000) $3,589 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 27,300 Value ($000) $3,511 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 27,300 Value ($000) $3,624 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 28,800 Value ($000) $3,610 Avg Close $111.04 Range $106.47 - $114.69

Q4 2016

Shares 31,200 Value ($000) $3,657 Avg Close $105.98 Range $100.13 - $110.74

Q3 2016

Shares 34,600 Value ($000) $4,212 Avg Close $108.98 Range $105.46 - $112.42

Q2 2016

Shares 34,600 Value ($000) $4,104 Avg Close $104.92 Range $98.81 - $109.58

Q1 2016

Shares 35,400 Value ($000) $3,948 Avg Close $95.34 Range $88.43 - $102.02

Q4 2015

Shares 35,400 Value ($000) $4,049 Avg Close $105.21 Range $98.01 - $109.49

Q3 2015

Shares 36,800 Value ($000) $4,038 Avg Close $99.79 Range $91.88 - $104.89

Q2 2015

Shares 36,800 Value ($000) $4,161 Avg Close $102.25 Range $97.79 - $105.41

Q1 2015

Shares 39,500 Value ($000) $4,518 Avg Close $97.19 Range $86.65 - $103.73

Q4 2014

Shares 41,100 Value ($000) $4,296 Avg Close $96.70 Range $89.74 - $101.94

Q3 2014

Shares 41,000 Value ($000) $4,708 Avg Close $99.26 Range $94.57 - $104.65

Q2 2014

Shares 41,000 Value ($000) $4,565 Avg Close $94.25 Range $89.51 - $98.33

Q1 2014

Shares 44,000 Value ($000) $4,752 Avg Close $91.92 Range $85.62 - $98.30

Q4 2013

Shares 44,000 Value ($000) $4,588 Avg Close $90.95 Range $84.34 - $94.74

Q3 2013

Shares 45,400 Value ($000) $4,484 Avg Close $81.20 Range $74.57 - $86.97

Q2 2013

Shares 48,300 Value ($000) $4,115 Avg Close $73.48 Range $68.51 - $77.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	19,768	$5	$265.71	$251.04 - $281.41
Q3 2025	19,768	$5	$270.32	$253.71 - $284.56
Q2 2025	19,768	$5	$252.35	$219.93 - $269.19
Q1 2025	19,478	$5	$249.61	$225.31 - $270.90
Q4 2024	18,851	$4	$245.53	$230.70 - $259.26
Q3 2024	18,851	$5	$241.07	$217.65 - $253.31
Q2 2024	20,056	$5	$227.14	$213.29 - $242.24
Q1 2024	20,675	$5	$207.94	$189.63 - $227.85
Q4 2023	21,707	$4	$175.85	$153.18 - $197.06
Q3 2023	22,308	$4	$177.30	$163.22 - $186.52
Q2 2023	22,308	$4	$167.31	$156.95 - $182.94
Q1 2023	23,170	$4	$150.99	$139.35 - $161.29
Q4 2022	23,170	$3	$141.81	$126.42 - $153.48
Q3 2022	23,170	$3,347	$156.07	$138.29 - $171.23
Q1 2022	17,578	$3,104	$179.54	$147.91 - $226.74
Q4 2021	18,343	$4,303	$215.53	$199.33 - $227.72
Q3 2021	18,850	$3,932	$208.54	$195.25 - $219.93
Q2 2021	18,850	$3,883	$206.33	$194.28 - $218.25
Q1 2021	18,850	$4,035	$201.55	$190.45 - $215.84
Q4 2020	20,600	$4,457	$197.47	$171.24 - $214.73
Q3 2020	22,100	$4,416	$188.44	$172.53 - $201.15
Q2 2020	23,100	$4,596	$182.16	$136.65 - $217.57
Q1 2020	25,900	$4,036	$176.33	$117.17 - $198.13
Q4 2019	25,250	$4,873	$177.67	$169.74 - $186.58
Q3 2019	25,250	$5,001	$187.16	$179.22 - $195.89
Q2 2019	23,750	$4,689	$173.21	$164.99 - $187.12
Q1 2019	25,250	$4,458	$150.92	$131.24 - $169.66
Q4 2018	27,250	$4,015	$141.48	$126.10 - $150.86
Q3 2018	25,150	$3,943	$137.00	$128.06 - $148.09
Q2 2018	27,650	$3,880	$132.91	$122.30 - $138.58
Q1 2018	27,650	$3,790	$123.54	$115.47 - $129.02
Q4 2017	26,750	$3,589	$121.85	$117.53 - $126.30
Q3 2017	27,300	$3,511	$120.10	$116.11 - $122.59
Q2 2017	27,300	$3,624	$117.68	$113.27 - $123.01
Q1 2017	28,800	$3,610	$111.04	$106.47 - $114.69
Q4 2016	31,200	$3,657	$105.98	$100.13 - $110.74
Q3 2016	34,600	$4,212	$108.98	$105.46 - $112.42
Q2 2016	34,600	$4,104	$104.92	$98.81 - $109.58
Q1 2016	35,400	$3,948	$95.34	$88.43 - $102.02
Q4 2015	35,400	$4,049	$105.21	$98.01 - $109.49
Q3 2015	36,800	$4,038	$99.79	$91.88 - $104.89
Q2 2015	36,800	$4,161	$102.25	$97.79 - $105.41
Q1 2015	39,500	$4,518	$97.19	$86.65 - $103.73
Q4 2014	41,100	$4,296	$96.70	$89.74 - $101.94
Q3 2014	41,000	$4,708	$99.26	$94.57 - $104.65
Q2 2014	41,000	$4,565	$94.25	$89.51 - $98.33
Q1 2014	44,000	$4,752	$91.92	$85.62 - $98.30
Q4 2013	44,000	$4,588	$90.95	$84.34 - $94.74
Q3 2013	45,400	$4,484	$81.20	$74.57 - $86.97
Q2 2013	48,300	$4,115	$73.48	$68.51 - $77.84