ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

ALERUS FINANCIAL NA's Holding History (CIK: 0000919458)

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

Q4 2025

Shares 1,094 Value ($000) $287 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 1,094 Value ($000) $300 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 1,094 Value ($000) $295 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 1,102 Value ($000) $279 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 5,275 Value ($000) $1,236 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 5,348 Value ($000) $1,366 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 6,051 Value ($000) $1,440 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 6,051 Value ($000) $1,397 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 6,120 Value ($000) $1,214 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 6,233 Value ($000) $1,056 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 6,233 Value ($000) $1,164 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 5,135 Value ($000) $850 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 5,336 Value ($000) $777 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 5,336 Value ($000) $770 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 5,539 Value ($000) $852 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 5,609 Value ($000) $990 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 5,954 Value ($000) $1,396 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 6,169 Value ($000) $1,287 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 5,908 Value ($000) $1,217 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 10,194 Value ($000) $2,182 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 10,342 Value ($000) $2,237 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 10,217 Value ($000) $2,042 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 16,106 Value ($000) $3,204 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 16,464 Value ($000) $2,566 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 14,724 Value ($000) $2,842 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 5,976 Value ($000) $1,183 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 5,976 Value ($000) $1,180 Avg Close $173.21 Range $164.99 - $187.12

Q1 2019

Shares 6,053 Value ($000) $1,069 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 6,189 Value ($000) $912 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 6,329 Value ($000) $992 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 6,460 Value ($000) $907 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 6,548 Value ($000) $898 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 6,548 Value ($000) $879 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 6,618 Value ($000) $851 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 6,600 Value ($000) $876 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 6,600 Value ($000) $827 Avg Close $111.04 Range $106.47 - $114.69

Q4 2016

Shares 6,600 Value ($000) $774 Avg Close $105.98 Range $100.13 - $110.74

Q3 2016

Shares 6,600 Value ($000) $803 Avg Close $108.98 Range $105.46 - $112.42

Q2 2016

Shares 6,600 Value ($000) $783 Avg Close $104.92 Range $98.81 - $109.58

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,094	$287	$265.71	$251.04 - $281.41
Q3 2025	1,094	$300	$270.32	$253.71 - $284.56
Q2 2025	1,094	$295	$252.35	$219.93 - $269.19
Q1 2025	1,102	$279	$249.61	$225.31 - $270.90
Q4 2024	5,275	$1,236	$245.53	$230.70 - $259.26
Q3 2024	5,348	$1,366	$241.07	$217.65 - $253.31
Q2 2024	6,051	$1,440	$227.14	$213.29 - $242.24
Q1 2024	6,051	$1,397	$207.94	$189.63 - $227.85
Q4 2023	6,120	$1,214	$175.85	$153.18 - $197.06
Q3 2023	6,233	$1,056	$177.30	$163.22 - $186.52
Q2 2023	6,233	$1,164	$167.31	$156.95 - $182.94
Q1 2023	5,135	$850	$150.99	$139.35 - $161.29
Q4 2022	5,336	$777	$141.81	$126.42 - $153.48
Q3 2022	5,336	$770	$156.07	$138.29 - $171.23
Q2 2022	5,539	$852	$158.99	$137.82 - $177.76
Q1 2022	5,609	$990	$179.54	$147.91 - $226.74
Q4 2021	5,954	$1,396	$215.53	$199.33 - $227.72
Q3 2021	6,169	$1,287	$208.54	$195.25 - $219.93
Q2 2021	5,908	$1,217	$206.33	$194.28 - $218.25
Q1 2021	10,194	$2,182	$201.55	$190.45 - $215.84
Q4 2020	10,342	$2,237	$197.47	$171.24 - $214.73
Q3 2020	10,217	$2,042	$188.44	$172.53 - $201.15
Q2 2020	16,106	$3,204	$182.16	$136.65 - $217.57
Q1 2020	16,464	$2,566	$176.33	$117.17 - $198.13
Q4 2019	14,724	$2,842	$177.67	$169.74 - $186.58
Q3 2019	5,976	$1,183	$187.16	$179.22 - $195.89
Q2 2019	5,976	$1,180	$173.21	$164.99 - $187.12
Q1 2019	6,053	$1,069	$150.92	$131.24 - $169.66
Q4 2018	6,189	$912	$141.48	$126.10 - $150.86
Q3 2018	6,329	$992	$137.00	$128.06 - $148.09
Q2 2018	6,460	$907	$132.91	$122.30 - $138.58
Q1 2018	6,548	$898	$123.54	$115.47 - $129.02
Q4 2017	6,548	$879	$121.85	$117.53 - $126.30
Q3 2017	6,618	$851	$120.10	$116.11 - $122.59
Q2 2017	6,600	$876	$117.68	$113.27 - $123.01
Q1 2017	6,600	$827	$111.04	$106.47 - $114.69
Q4 2016	6,600	$774	$105.98	$100.13 - $110.74
Q3 2016	6,600	$803	$108.98	$105.46 - $112.42
Q2 2016	6,600	$783	$104.92	$98.81 - $109.58