ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

HEADINVEST, LLC's Holding History (CIK: 0001372130)

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

Q4 2025

Shares 12,199 Value ($000) $3,202 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 12,379 Value ($000) $3,390 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 12,519 Value ($000) $3,373 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 16,682 Value ($000) $4,229 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 17,311 Value ($000) $4,056 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 17,601 Value ($000) $4,494 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 18,141 Value ($000) $4,318 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 18,241 Value ($000) $4,212 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 18,647 Value ($000) $3,699 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 19,877 Value ($000) $3,317 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 20,822 Value ($000) $3,839 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 23,796 Value ($000) $3,939 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 25,055 Value ($000) $3,647 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 26,787 Value ($000) $3,869 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 26,886 Value ($000) $4,134 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 27,362 Value ($000) $4,831 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 27,693 Value ($000) $6,497 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 27,623 Value ($000) $5,763 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 27,615 Value ($000) $5,687 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 27,356 Value ($000) $5,856 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 27,295 Value ($000) $5,906 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 26,468 Value ($000) $5,289 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 26,578 Value ($000) $5,288 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 26,578 Value ($000) $4,142 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 26,689 Value ($000) $5,151 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 27,342 Value ($000) $5,415 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 28,822 Value ($000) $5,691 Avg Close $173.21 Range $164.99 - $187.12

Q1 2019

Shares 28,067 Value ($000) $4,955 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 56,514 Value ($000) $8,327 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 28,387 Value ($000) $4,451 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 28,647 Value ($000) $4,020 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 28,557 Value ($000) $3,914 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 28,697 Value ($000) $3,851 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 28,592 Value ($000) $3,736 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 28,436 Value ($000) $3,775 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 28,236 Value ($000) $3,539 Avg Close $111.04 Range $106.47 - $114.69

Q4 2016

Shares 28,190 Value ($000) $3,304 Avg Close $105.98 Range $100.13 - $110.74

Q3 2016

Shares 28,210 Value ($000) $3,359 Avg Close $108.98 Range $105.46 - $112.42

Q2 2016

Shares 24,450 Value ($000) $2,900 Avg Close $104.92 Range $98.81 - $109.58

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	12,199	$3,202	$265.71	$251.04 - $281.41
Q3 2025	12,379	$3,390	$270.32	$253.71 - $284.56
Q2 2025	12,519	$3,373	$252.35	$219.93 - $269.19
Q1 2025	16,682	$4,229	$249.61	$225.31 - $270.90
Q4 2024	17,311	$4,056	$245.53	$230.70 - $259.26
Q3 2024	17,601	$4,494	$241.07	$217.65 - $253.31
Q2 2024	18,141	$4,318	$227.14	$213.29 - $242.24
Q1 2024	18,241	$4,212	$207.94	$189.63 - $227.85
Q4 2023	18,647	$3,699	$175.85	$153.18 - $197.06
Q3 2023	19,877	$3,317	$177.30	$163.22 - $186.52
Q2 2023	20,822	$3,839	$167.31	$156.95 - $182.94
Q1 2023	23,796	$3,939	$150.99	$139.35 - $161.29
Q4 2022	25,055	$3,647	$141.81	$126.42 - $153.48
Q3 2022	26,787	$3,869	$156.07	$138.29 - $171.23
Q2 2022	26,886	$4,134	$158.99	$137.82 - $177.76
Q1 2022	27,362	$4,831	$179.54	$147.91 - $226.74
Q4 2021	27,693	$6,497	$215.53	$199.33 - $227.72
Q3 2021	27,623	$5,763	$208.54	$195.25 - $219.93
Q2 2021	27,615	$5,687	$206.33	$194.28 - $218.25
Q1 2021	27,356	$5,856	$201.55	$190.45 - $215.84
Q4 2020	27,295	$5,906	$197.47	$171.24 - $214.73
Q3 2020	26,468	$5,289	$188.44	$172.53 - $201.15
Q2 2020	26,578	$5,288	$182.16	$136.65 - $217.57
Q1 2020	26,578	$4,142	$176.33	$117.17 - $198.13
Q4 2019	26,689	$5,151	$177.67	$169.74 - $186.58
Q3 2019	27,342	$5,415	$187.16	$179.22 - $195.89
Q2 2019	28,822	$5,691	$173.21	$164.99 - $187.12
Q1 2019	28,067	$4,955	$150.92	$131.24 - $169.66
Q4 2018	56,514	$8,327	$141.48	$126.10 - $150.86
Q3 2018	28,387	$4,451	$137.00	$128.06 - $148.09
Q2 2018	28,647	$4,020	$132.91	$122.30 - $138.58
Q1 2018	28,557	$3,914	$123.54	$115.47 - $129.02
Q4 2017	28,697	$3,851	$121.85	$117.53 - $126.30
Q3 2017	28,592	$3,736	$120.10	$116.11 - $122.59
Q2 2017	28,436	$3,775	$117.68	$113.27 - $123.01
Q1 2017	28,236	$3,539	$111.04	$106.47 - $114.69
Q4 2016	28,190	$3,304	$105.98	$100.13 - $110.74
Q3 2016	28,210	$3,359	$108.98	$105.46 - $112.42
Q2 2016	24,450	$2,900	$104.92	$98.81 - $109.58