ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

DEARBORN PARTNERS LLC's Holding History (CIK: 0001206792)

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

Q4 2025

Shares 5,628 Value ($000) $1,477 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 5,857 Value ($000) $1,604 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 6,397 Value ($000) $1,724 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 6,697 Value ($000) $1,698 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 6,763 Value ($000) $1,585 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 6,863 Value ($000) $1,752 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 6,863 Value ($000) $1,633 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 7,039 Value ($000) $1,625 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 6,892 Value ($000) $1,367 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 6,892 Value ($000) $1,168 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 6,465 Value ($000) $1,207 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 7,129 Value ($000) $1,180 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 7,747 Value ($000) $1,128 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 7,735 Value ($000) $1,117 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 7,722 Value ($000) $1,187 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 7,962 Value ($000) $1,406 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 8,068 Value ($000) $1,893 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 8,448 Value ($000) $1,762 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 8,491 Value ($000) $1,749 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 8,771 Value ($000) $1,878 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 9,018 Value ($000) $1,951 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 9,018 Value ($000) $1,802 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 9,165 Value ($000) $1,823 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 9,766 Value ($000) $1,522 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 9,554 Value ($000) $1,844 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 10,109 Value ($000) $2,002 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 10,096 Value ($000) $1,993 Avg Close $173.21 Range $164.99 - $187.12

Q1 2019

Shares 10,125 Value ($000) $1,787 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 10,762 Value ($000) $1,586 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 11,189 Value ($000) $1,754 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 10,419 Value ($000) $1,462 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 10,643 Value ($000) $1,459 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 10,873 Value ($000) $1,459 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 10,925 Value ($000) $1,405 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 17,490 Value ($000) $2,322 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 17,227 Value ($000) $2,159 Avg Close $111.04 Range $106.47 - $114.69

Q4 2016

Shares 17,243 Value ($000) $2,021 Avg Close $105.98 Range $100.13 - $110.74

Q3 2016

Shares 17,101 Value ($000) $2,082 Avg Close $108.98 Range $105.46 - $112.42

Q2 2016

Shares 16,551 Value ($000) $1,963 Avg Close $104.92 Range $98.81 - $109.58

Q1 2016

Shares 16,189 Value ($000) $1,805 Avg Close $95.34 Range $88.43 - $102.02

Q4 2015

Shares 8,468 Value ($000) $969 Avg Close $105.21 Range $98.01 - $109.49

Q3 2015

Shares 22,437 Value ($000) $2,462 Avg Close $99.79 Range $91.88 - $104.89

Q2 2015

Shares 24,248 Value ($000) $2,742 Avg Close $102.25 Range $97.79 - $105.41

Q1 2015

Shares 35,662 Value ($000) $4,079 Avg Close $97.19 Range $86.65 - $103.73

Q4 2014

Shares 40,845 Value ($000) $4,269 Avg Close $96.70 Range $89.74 - $101.94

Q3 2014

Shares 42,307 Value ($000) $4,858 Avg Close $99.26 Range $94.57 - $104.65

Q2 2014

Shares 41,462 Value ($000) $4,616 Avg Close $94.25 Range $89.51 - $98.33

Q1 2014

Shares 41,558 Value ($000) $4,488 Avg Close $91.92 Range $85.62 - $98.30

Q4 2013

Shares 41,981 Value ($000) $4,377 Avg Close $90.95 Range $84.34 - $94.74

Q3 2013

Shares 41,452 Value ($000) $4,094 Avg Close $81.20 Range $74.57 - $86.97

Q2 2013

Shares 47,598 Value ($000) $4,055 Avg Close $73.48 Range $68.51 - $77.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	5,628	$1,477	$265.71	$251.04 - $281.41
Q3 2025	5,857	$1,604	$270.32	$253.71 - $284.56
Q2 2025	6,397	$1,724	$252.35	$219.93 - $269.19
Q1 2025	6,697	$1,698	$249.61	$225.31 - $270.90
Q4 2024	6,763	$1,585	$245.53	$230.70 - $259.26
Q3 2024	6,863	$1,752	$241.07	$217.65 - $253.31
Q2 2024	6,863	$1,633	$227.14	$213.29 - $242.24
Q1 2024	7,039	$1,625	$207.94	$189.63 - $227.85
Q4 2023	6,892	$1,367	$175.85	$153.18 - $197.06
Q3 2023	6,892	$1,168	$177.30	$163.22 - $186.52
Q2 2023	6,465	$1,207	$167.31	$156.95 - $182.94
Q1 2023	7,129	$1,180	$150.99	$139.35 - $161.29
Q4 2022	7,747	$1,128	$141.81	$126.42 - $153.48
Q3 2022	7,735	$1,117	$156.07	$138.29 - $171.23
Q2 2022	7,722	$1,187	$158.99	$137.82 - $177.76
Q1 2022	7,962	$1,406	$179.54	$147.91 - $226.74
Q4 2021	8,068	$1,893	$215.53	$199.33 - $227.72
Q3 2021	8,448	$1,762	$208.54	$195.25 - $219.93
Q2 2021	8,491	$1,749	$206.33	$194.28 - $218.25
Q1 2021	8,771	$1,878	$201.55	$190.45 - $215.84
Q4 2020	9,018	$1,951	$197.47	$171.24 - $214.73
Q3 2020	9,018	$1,802	$188.44	$172.53 - $201.15
Q2 2020	9,165	$1,823	$182.16	$136.65 - $217.57
Q1 2020	9,766	$1,522	$176.33	$117.17 - $198.13
Q4 2019	9,554	$1,844	$177.67	$169.74 - $186.58
Q3 2019	10,109	$2,002	$187.16	$179.22 - $195.89
Q2 2019	10,096	$1,993	$173.21	$164.99 - $187.12
Q1 2019	10,125	$1,787	$150.92	$131.24 - $169.66
Q4 2018	10,762	$1,586	$141.48	$126.10 - $150.86
Q3 2018	11,189	$1,754	$137.00	$128.06 - $148.09
Q2 2018	10,419	$1,462	$132.91	$122.30 - $138.58
Q1 2018	10,643	$1,459	$123.54	$115.47 - $129.02
Q4 2017	10,873	$1,459	$121.85	$117.53 - $126.30
Q3 2017	10,925	$1,405	$120.10	$116.11 - $122.59
Q2 2017	17,490	$2,322	$117.68	$113.27 - $123.01
Q1 2017	17,227	$2,159	$111.04	$106.47 - $114.69
Q4 2016	17,243	$2,021	$105.98	$100.13 - $110.74
Q3 2016	17,101	$2,082	$108.98	$105.46 - $112.42
Q2 2016	16,551	$1,963	$104.92	$98.81 - $109.58
Q1 2016	16,189	$1,805	$95.34	$88.43 - $102.02
Q4 2015	8,468	$969	$105.21	$98.01 - $109.49
Q3 2015	22,437	$2,462	$99.79	$91.88 - $104.89
Q2 2015	24,248	$2,742	$102.25	$97.79 - $105.41
Q1 2015	35,662	$4,079	$97.19	$86.65 - $103.73
Q4 2014	40,845	$4,269	$96.70	$89.74 - $101.94
Q3 2014	42,307	$4,858	$99.26	$94.57 - $104.65
Q2 2014	41,462	$4,616	$94.25	$89.51 - $98.33
Q1 2014	41,558	$4,488	$91.92	$85.62 - $98.30
Q4 2013	41,981	$4,377	$90.95	$84.34 - $94.74
Q3 2013	41,452	$4,094	$81.20	$74.57 - $86.97
Q2 2013	47,598	$4,055	$73.48	$68.51 - $77.84