ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

MIDDLETON & CO INC/MA's Holding History (CIK: 0000919497)

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

Q4 2025

Shares 30,808 Value ($000) $8,088 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 31,025 Value ($000) $8,497 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 32,546 Value ($000) $8,769 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 33,972 Value ($000) $8,613 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 34,725 Value ($000) $8,137 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 35,268 Value ($000) $9,005 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 35,602 Value ($000) $8,473 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 37,442 Value ($000) $8,645 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 37,565 Value ($000) $7,451 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 37,880 Value ($000) $6,417 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 36,493 Value ($000) $6,813 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 35,061 Value ($000) $5,804 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 34,971 Value ($000) $5,090 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 36,951 Value ($000) $5,336 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 41,788 Value ($000) $6,425 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 43,012 Value ($000) $7,595 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 43,543 Value ($000) $10,214 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 43,668 Value ($000) $9,110 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 43,012 Value ($000) $8,859 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 45,425 Value ($000) $9,724 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 45,061 Value ($000) $9,749 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 43,070 Value ($000) $8,607 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 40,455 Value ($000) $8,049 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 39,545 Value ($000) $6,162 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 39,240 Value ($000) $7,573 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 38,896 Value ($000) $7,703 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 41,001 Value ($000) $8,095 Avg Close $173.21 Range $164.99 - $187.12

Q1 2019

Shares 44,059 Value ($000) $7,778 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 43,478 Value ($000) $6,406 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 38,800 Value ($000) $6,083 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 38,284 Value ($000) $5,372 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 35,620 Value ($000) $4,882 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 37,653 Value ($000) $5,052 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 33,803 Value ($000) $4,347 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 31,194 Value ($000) $4,141 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 24,042 Value ($000) $3,013 Avg Close $111.04 Range $106.47 - $114.69

Q4 2016

Shares 19,928 Value ($000) $2,336 Avg Close $105.98 Range $100.13 - $110.74

Q3 2016

Shares 11,778 Value ($000) $1,434 Avg Close $108.98 Range $105.46 - $112.42

Q2 2016

Shares 2,628 Value ($000) $312 Avg Close $104.92 Range $98.81 - $109.58

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	30,808	$8,088	$265.71	$251.04 - $281.41
Q3 2025	31,025	$8,497	$270.32	$253.71 - $284.56
Q2 2025	32,546	$8,769	$252.35	$219.93 - $269.19
Q1 2025	33,972	$8,613	$249.61	$225.31 - $270.90
Q4 2024	34,725	$8,137	$245.53	$230.70 - $259.26
Q3 2024	35,268	$9,005	$241.07	$217.65 - $253.31
Q2 2024	35,602	$8,473	$227.14	$213.29 - $242.24
Q1 2024	37,442	$8,645	$207.94	$189.63 - $227.85
Q4 2023	37,565	$7,451	$175.85	$153.18 - $197.06
Q3 2023	37,880	$6,417	$177.30	$163.22 - $186.52
Q2 2023	36,493	$6,813	$167.31	$156.95 - $182.94
Q1 2023	35,061	$5,804	$150.99	$139.35 - $161.29
Q4 2022	34,971	$5,090	$141.81	$126.42 - $153.48
Q3 2022	36,951	$5,336	$156.07	$138.29 - $171.23
Q2 2022	41,788	$6,425	$158.99	$137.82 - $177.76
Q1 2022	43,012	$7,595	$179.54	$147.91 - $226.74
Q4 2021	43,543	$10,214	$215.53	$199.33 - $227.72
Q3 2021	43,668	$9,110	$208.54	$195.25 - $219.93
Q2 2021	43,012	$8,859	$206.33	$194.28 - $218.25
Q1 2021	45,425	$9,724	$201.55	$190.45 - $215.84
Q4 2020	45,061	$9,749	$197.47	$171.24 - $214.73
Q3 2020	43,070	$8,607	$188.44	$172.53 - $201.15
Q2 2020	40,455	$8,049	$182.16	$136.65 - $217.57
Q1 2020	39,545	$6,162	$176.33	$117.17 - $198.13
Q4 2019	39,240	$7,573	$177.67	$169.74 - $186.58
Q3 2019	38,896	$7,703	$187.16	$179.22 - $195.89
Q2 2019	41,001	$8,095	$173.21	$164.99 - $187.12
Q1 2019	44,059	$7,778	$150.92	$131.24 - $169.66
Q4 2018	43,478	$6,406	$141.48	$126.10 - $150.86
Q3 2018	38,800	$6,083	$137.00	$128.06 - $148.09
Q2 2018	38,284	$5,372	$132.91	$122.30 - $138.58
Q1 2018	35,620	$4,882	$123.54	$115.47 - $129.02
Q4 2017	37,653	$5,052	$121.85	$117.53 - $126.30
Q3 2017	33,803	$4,347	$120.10	$116.11 - $122.59
Q2 2017	31,194	$4,141	$117.68	$113.27 - $123.01
Q1 2017	24,042	$3,013	$111.04	$106.47 - $114.69
Q4 2016	19,928	$2,336	$105.98	$100.13 - $110.74
Q3 2016	11,778	$1,434	$108.98	$105.46 - $112.42
Q2 2016	2,628	$312	$104.92	$98.81 - $109.58