ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

WEBSTER BANK, N. A.'s Holding History (CIK: 0001105837)

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

Q4 2025

Shares 15,698 Value ($000) $4,121 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 16,382 Value ($000) $4,486 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 16,443 Value ($000) $4,430 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 17,149 Value ($000) $4,348 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 17,367 Value ($000) $4,069 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 18,182 Value ($000) $4,642 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 19,357 Value ($000) $4,607 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 19,348 Value ($000) $4,467 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 19,747 Value ($000) $3,917 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 19,487 Value ($000) $3,301 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 19,393 Value ($000) $3,620 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 19,033 Value ($000) $3,151 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 19,673 Value ($000) $3 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 21,022 Value ($000) $3,036 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 21,022 Value ($000) $3,232 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 21,716 Value ($000) $3,834 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 21,624 Value ($000) $5,072 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 21,902 Value ($000) $4,569 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 24,581 Value ($000) $5,062 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 24,066 Value ($000) $5,152 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 24,368 Value ($000) $5,272 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 24,057 Value ($000) $4,808 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 24,162 Value ($000) $4,807 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 24,859 Value ($000) $3,874 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 24,611 Value ($000) $4,750 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 24,887 Value ($000) $4,929 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 25,404 Value ($000) $5,016 Avg Close $173.21 Range $164.99 - $187.12

Q1 2019

Shares 25,876 Value ($000) $4,568 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 25,745 Value ($000) $3,794 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 26,215 Value ($000) $4,110 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 28,080 Value ($000) $3,941 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 29,042 Value ($000) $3,981 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 28,568 Value ($000) $3,834 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 29,454 Value ($000) $3,788 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 29,179 Value ($000) $3,873 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 29,355 Value ($000) $3,679 Avg Close $111.04 Range $106.47 - $114.69

Q4 2016

Shares 27,325 Value ($000) $3,203 Avg Close $105.98 Range $100.13 - $110.74

Q3 2016

Shares 27,069 Value ($000) $3,294 Avg Close $108.98 Range $105.46 - $112.42

Q2 2016

Shares 26,491 Value ($000) $3,142 Avg Close $104.92 Range $98.81 - $109.58

Q1 2016

Shares 26,971 Value ($000) $3,008 Avg Close $95.34 Range $88.43 - $102.02

Q4 2015

Shares 26,171 Value ($000) $2,993 Avg Close $105.21 Range $98.01 - $109.49

Q3 2015

Shares 25,611 Value ($000) $2,810 Avg Close $99.79 Range $91.88 - $104.89

Q2 2015

Shares 25,526 Value ($000) $2,886 Avg Close $102.25 Range $97.79 - $105.41

Q1 2015

Shares 25,833 Value ($000) $2,955 Avg Close $97.19 Range $86.65 - $103.73

Q4 2014

Shares 25,897 Value ($000) $2,707 Avg Close $96.70 Range $89.74 - $101.94

Q3 2014

Shares 26,387 Value ($000) $3,030 Avg Close $99.26 Range $94.57 - $104.65

Q2 2014

Shares 27,662 Value ($000) $3,080 Avg Close $94.25 Range $89.51 - $98.33

Q1 2014

Shares 56,109 Value ($000) $6,060 Avg Close $91.92 Range $85.62 - $98.30

Q4 2013

Shares 55,290 Value ($000) $5,765 Avg Close $90.95 Range $84.34 - $94.74

Q3 2013

Shares 57,980 Value ($000) $5,727 Avg Close $81.20 Range $74.57 - $86.97

Q2 2013

Shares 57,690 Value ($000) $4,915 Avg Close $73.48 Range $68.51 - $77.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	15,698	$4,121	$265.71	$251.04 - $281.41
Q3 2025	16,382	$4,486	$270.32	$253.71 - $284.56
Q2 2025	16,443	$4,430	$252.35	$219.93 - $269.19
Q1 2025	17,149	$4,348	$249.61	$225.31 - $270.90
Q4 2024	17,367	$4,069	$245.53	$230.70 - $259.26
Q3 2024	18,182	$4,642	$241.07	$217.65 - $253.31
Q2 2024	19,357	$4,607	$227.14	$213.29 - $242.24
Q1 2024	19,348	$4,467	$207.94	$189.63 - $227.85
Q4 2023	19,747	$3,917	$175.85	$153.18 - $197.06
Q3 2023	19,487	$3,301	$177.30	$163.22 - $186.52
Q2 2023	19,393	$3,620	$167.31	$156.95 - $182.94
Q1 2023	19,033	$3,151	$150.99	$139.35 - $161.29
Q4 2022	19,673	$3	$141.81	$126.42 - $153.48
Q3 2022	21,022	$3,036	$156.07	$138.29 - $171.23
Q2 2022	21,022	$3,232	$158.99	$137.82 - $177.76
Q1 2022	21,716	$3,834	$179.54	$147.91 - $226.74
Q4 2021	21,624	$5,072	$215.53	$199.33 - $227.72
Q3 2021	21,902	$4,569	$208.54	$195.25 - $219.93
Q2 2021	24,581	$5,062	$206.33	$194.28 - $218.25
Q1 2021	24,066	$5,152	$201.55	$190.45 - $215.84
Q4 2020	24,368	$5,272	$197.47	$171.24 - $214.73
Q3 2020	24,057	$4,808	$188.44	$172.53 - $201.15
Q2 2020	24,162	$4,807	$182.16	$136.65 - $217.57
Q1 2020	24,859	$3,874	$176.33	$117.17 - $198.13
Q4 2019	24,611	$4,750	$177.67	$169.74 - $186.58
Q3 2019	24,887	$4,929	$187.16	$179.22 - $195.89
Q2 2019	25,404	$5,016	$173.21	$164.99 - $187.12
Q1 2019	25,876	$4,568	$150.92	$131.24 - $169.66
Q4 2018	25,745	$3,794	$141.48	$126.10 - $150.86
Q3 2018	26,215	$4,110	$137.00	$128.06 - $148.09
Q2 2018	28,080	$3,941	$132.91	$122.30 - $138.58
Q1 2018	29,042	$3,981	$123.54	$115.47 - $129.02
Q4 2017	28,568	$3,834	$121.85	$117.53 - $126.30
Q3 2017	29,454	$3,788	$120.10	$116.11 - $122.59
Q2 2017	29,179	$3,873	$117.68	$113.27 - $123.01
Q1 2017	29,355	$3,679	$111.04	$106.47 - $114.69
Q4 2016	27,325	$3,203	$105.98	$100.13 - $110.74
Q3 2016	27,069	$3,294	$108.98	$105.46 - $112.42
Q2 2016	26,491	$3,142	$104.92	$98.81 - $109.58
Q1 2016	26,971	$3,008	$95.34	$88.43 - $102.02
Q4 2015	26,171	$2,993	$105.21	$98.01 - $109.49
Q3 2015	25,611	$2,810	$99.79	$91.88 - $104.89
Q2 2015	25,526	$2,886	$102.25	$97.79 - $105.41
Q1 2015	25,833	$2,955	$97.19	$86.65 - $103.73
Q4 2014	25,897	$2,707	$96.70	$89.74 - $101.94
Q3 2014	26,387	$3,030	$99.26	$94.57 - $104.65
Q2 2014	27,662	$3,080	$94.25	$89.51 - $98.33
Q1 2014	56,109	$6,060	$91.92	$85.62 - $98.30
Q4 2013	55,290	$5,765	$90.95	$84.34 - $94.74
Q3 2013	57,980	$5,727	$81.20	$74.57 - $86.97
Q2 2013	57,690	$4,915	$73.48	$68.51 - $77.84