ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

Ledyard National Bank's Holding History (CIK: 0001310658)

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

Q4 2025

Shares 1,212 Value ($000) $318 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 1,211 Value ($000) $332 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 1,205 Value ($000) $325 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 1,151 Value ($000) $292 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 1,145 Value ($000) $268 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 1,114 Value ($000) $284 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 1,148 Value ($000) $273 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 1,143 Value ($000) $264 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 1,143 Value ($000) $227 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 1,403 Value ($000) $238 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 1,513 Value ($000) $282 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 1,506 Value ($000) $249 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 1,496 Value ($000) $218 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 1,496 Value ($000) $216 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 1,613 Value ($000) $248 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 1,595 Value ($000) $282 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 3,953 Value ($000) $928 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 4,703 Value ($000) $982 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 4,828 Value ($000) $994 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 5,088 Value ($000) $1,089 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 5,963 Value ($000) $1,290 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 6,126 Value ($000) $1,224 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 5,608 Value ($000) $1,116 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 8,250 Value ($000) $1,286 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 8,175 Value ($000) $1,578 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 8,175 Value ($000) $1,619 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 8,175 Value ($000) $1,614 Avg Close $173.21 Range $164.99 - $187.12

Q1 2019

Shares 8,925 Value ($000) $1,576 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 23,392 Value ($000) $3,447 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 22,308 Value ($000) $3,497 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 22,550 Value ($000) $3,164 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 23,760 Value ($000) $3,257 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 25,307 Value ($000) $3,396 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 26,064 Value ($000) $3,352 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 26,554 Value ($000) $3,525 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 39,763 Value ($000) $4,984 Avg Close $111.04 Range $106.47 - $114.69

Q4 2016

Shares 39,914 Value ($000) $4,679 Avg Close $105.98 Range $100.13 - $110.74

Q3 2016

Shares 40,618 Value ($000) $4,944 Avg Close $108.98 Range $105.46 - $112.42

Q2 2016

Shares 41,992 Value ($000) $4,980 Avg Close $104.92 Range $98.81 - $109.58

Q1 2016

Shares 42,942 Value ($000) $4,789 Avg Close $95.34 Range $88.43 - $102.02

Q4 2015

Shares 44,867 Value ($000) $5,132 Avg Close $105.21 Range $98.01 - $109.49

Q3 2015

Shares 44,177 Value ($000) $4,847 Avg Close $99.79 Range $91.88 - $104.89

Q2 2015

Shares 43,942 Value ($000) $4,969 Avg Close $102.25 Range $97.79 - $105.41

Q1 2015

Shares 42,702 Value ($000) $4,884 Avg Close $97.19 Range $86.65 - $103.73

Q4 2014

Shares 4,827 Value ($000) $505 Avg Close $96.70 Range $89.74 - $101.94

Q3 2014

Shares 4,627 Value ($000) $531 Avg Close $99.26 Range $94.57 - $104.65

Q2 2014

Shares 4,567 Value ($000) $508 Avg Close $94.25 Range $89.51 - $98.33

Q1 2014

Shares 4,567 Value ($000) $493 Avg Close $91.92 Range $85.62 - $98.30

Q4 2013

Shares 6,835 Value ($000) $713 Avg Close $90.95 Range $84.34 - $94.74

Q3 2013

Shares 7,135 Value ($000) $705 Avg Close $81.20 Range $74.57 - $86.97

Q2 2013

Shares 6,562 Value ($000) $559 Avg Close $73.48 Range $68.51 - $77.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,212	$318	$265.71	$251.04 - $281.41
Q3 2025	1,211	$332	$270.32	$253.71 - $284.56
Q2 2025	1,205	$325	$252.35	$219.93 - $269.19
Q1 2025	1,151	$292	$249.61	$225.31 - $270.90
Q4 2024	1,145	$268	$245.53	$230.70 - $259.26
Q3 2024	1,114	$284	$241.07	$217.65 - $253.31
Q2 2024	1,148	$273	$227.14	$213.29 - $242.24
Q1 2024	1,143	$264	$207.94	$189.63 - $227.85
Q4 2023	1,143	$227	$175.85	$153.18 - $197.06
Q3 2023	1,403	$238	$177.30	$163.22 - $186.52
Q2 2023	1,513	$282	$167.31	$156.95 - $182.94
Q1 2023	1,506	$249	$150.99	$139.35 - $161.29
Q4 2022	1,496	$218	$141.81	$126.42 - $153.48
Q3 2022	1,496	$216	$156.07	$138.29 - $171.23
Q2 2022	1,613	$248	$158.99	$137.82 - $177.76
Q1 2022	1,595	$282	$179.54	$147.91 - $226.74
Q4 2021	3,953	$928	$215.53	$199.33 - $227.72
Q3 2021	4,703	$982	$208.54	$195.25 - $219.93
Q2 2021	4,828	$994	$206.33	$194.28 - $218.25
Q1 2021	5,088	$1,089	$201.55	$190.45 - $215.84
Q4 2020	5,963	$1,290	$197.47	$171.24 - $214.73
Q3 2020	6,126	$1,224	$188.44	$172.53 - $201.15
Q2 2020	5,608	$1,116	$182.16	$136.65 - $217.57
Q1 2020	8,250	$1,286	$176.33	$117.17 - $198.13
Q4 2019	8,175	$1,578	$177.67	$169.74 - $186.58
Q3 2019	8,175	$1,619	$187.16	$179.22 - $195.89
Q2 2019	8,175	$1,614	$173.21	$164.99 - $187.12
Q1 2019	8,925	$1,576	$150.92	$131.24 - $169.66
Q4 2018	23,392	$3,447	$141.48	$126.10 - $150.86
Q3 2018	22,308	$3,497	$137.00	$128.06 - $148.09
Q2 2018	22,550	$3,164	$132.91	$122.30 - $138.58
Q1 2018	23,760	$3,257	$123.54	$115.47 - $129.02
Q4 2017	25,307	$3,396	$121.85	$117.53 - $126.30
Q3 2017	26,064	$3,352	$120.10	$116.11 - $122.59
Q2 2017	26,554	$3,525	$117.68	$113.27 - $123.01
Q1 2017	39,763	$4,984	$111.04	$106.47 - $114.69
Q4 2016	39,914	$4,679	$105.98	$100.13 - $110.74
Q3 2016	40,618	$4,944	$108.98	$105.46 - $112.42
Q2 2016	41,992	$4,980	$104.92	$98.81 - $109.58
Q1 2016	42,942	$4,789	$95.34	$88.43 - $102.02
Q4 2015	44,867	$5,132	$105.21	$98.01 - $109.49
Q3 2015	44,177	$4,847	$99.79	$91.88 - $104.89
Q2 2015	43,942	$4,969	$102.25	$97.79 - $105.41
Q1 2015	42,702	$4,884	$97.19	$86.65 - $103.73
Q4 2014	4,827	$505	$96.70	$89.74 - $101.94
Q3 2014	4,627	$531	$99.26	$94.57 - $104.65
Q2 2014	4,567	$508	$94.25	$89.51 - $98.33
Q1 2014	4,567	$493	$91.92	$85.62 - $98.30
Q4 2013	6,835	$713	$90.95	$84.34 - $94.74
Q3 2013	7,135	$705	$81.20	$74.57 - $86.97
Q2 2013	6,562	$559	$73.48	$68.51 - $77.84