ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

DUNCKER STREETT & CO INC's Holding History (CIK: 0001020585)

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

Q4 2025

Shares 6,558 Value ($000) $1,722 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 6,556 Value ($000) $1,796 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 6,607 Value ($000) $1,780 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 6,761 Value ($000) $1,714 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 7,092 Value ($000) $1,662 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 7,656 Value ($000) $1,955 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 7,655 Value ($000) $1,822 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 7,653 Value ($000) $1,767 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 8,740 Value ($000) $1,734 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 8,738 Value ($000) $1,480 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 9,636 Value ($000) $1,799 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 9,642 Value ($000) $1,596 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 9,865 Value ($000) $1,436 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 12,405 Value ($000) $1,792 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 13,189 Value ($000) $2,028 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 13,477 Value ($000) $2,379 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 14,077 Value ($000) $3,302 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 14,255 Value ($000) $2,974 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 17,177 Value ($000) $3,538 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 21,687 Value ($000) $4,643 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 30,275 Value ($000) $6,550 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 30,474 Value ($000) $6,090 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 30,193 Value ($000) $6,007 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 30,763 Value ($000) $4,794 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 31,008 Value ($000) $5,984 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 30,772 Value ($000) $6,094 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 30,981 Value ($000) $6,117 Avg Close $173.21 Range $164.99 - $187.12

Q1 2019

Shares 31,054 Value ($000) $5,483 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 30,553 Value ($000) $4,502 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 31,631 Value ($000) $4,959 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 31,730 Value ($000) $4,453 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 31,778 Value ($000) $4,356 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 31,796 Value ($000) $4,266 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 25,795 Value ($000) $3,318 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 25,993 Value ($000) $3,451 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 26,017 Value ($000) $3,261 Avg Close $111.04 Range $106.47 - $114.69

Q4 2016

Shares 28,490 Value ($000) $3,339 Avg Close $105.98 Range $100.13 - $110.74

Q3 2016

Shares 28,364 Value ($000) $3,453 Avg Close $108.98 Range $105.46 - $112.42

Q2 2016

Shares 28,362 Value ($000) $3,364 Avg Close $104.92 Range $98.81 - $109.58

Q1 2016

Shares 28,141 Value ($000) $3,138 Avg Close $95.34 Range $88.43 - $102.02

Q4 2015

Shares 29,361 Value ($000) $3,358 Avg Close $105.21 Range $98.01 - $109.49

Q3 2015

Shares 30,110 Value ($000) $3,304 Avg Close $99.79 Range $91.88 - $104.89

Q2 2015

Shares 30,708 Value ($000) $3,472 Avg Close $102.25 Range $97.79 - $105.41

Q1 2015

Shares 35,289 Value ($000) $4,036 Avg Close $97.19 Range $86.65 - $103.73

Q4 2014

Shares 34,732 Value ($000) $3,630 Avg Close $96.70 Range $89.74 - $101.94

Q3 2014

Shares 34,661 Value ($000) $3,980 Avg Close $99.26 Range $94.57 - $104.65

Q2 2014

Shares 37,950 Value ($000) $4,225 Avg Close $94.25 Range $89.51 - $98.33

Q1 2014

Shares 35,427 Value ($000) $3,826 Avg Close $91.92 Range $85.62 - $98.30

Q4 2013

Shares 36,425 Value ($000) $3,798 Avg Close $90.95 Range $84.34 - $94.74

Q3 2013

Shares 37,424 Value ($000) $3,696 Avg Close $81.20 Range $74.57 - $86.97

Q2 2013

Shares 40,760 Value ($000) $3,472 Avg Close $73.48 Range $68.51 - $77.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	6,558	$1,722	$265.71	$251.04 - $281.41
Q3 2025	6,556	$1,796	$270.32	$253.71 - $284.56
Q2 2025	6,607	$1,780	$252.35	$219.93 - $269.19
Q1 2025	6,761	$1,714	$249.61	$225.31 - $270.90
Q4 2024	7,092	$1,662	$245.53	$230.70 - $259.26
Q3 2024	7,656	$1,955	$241.07	$217.65 - $253.31
Q2 2024	7,655	$1,822	$227.14	$213.29 - $242.24
Q1 2024	7,653	$1,767	$207.94	$189.63 - $227.85
Q4 2023	8,740	$1,734	$175.85	$153.18 - $197.06
Q3 2023	8,738	$1,480	$177.30	$163.22 - $186.52
Q2 2023	9,636	$1,799	$167.31	$156.95 - $182.94
Q1 2023	9,642	$1,596	$150.99	$139.35 - $161.29
Q4 2022	9,865	$1,436	$141.81	$126.42 - $153.48
Q3 2022	12,405	$1,792	$156.07	$138.29 - $171.23
Q2 2022	13,189	$2,028	$158.99	$137.82 - $177.76
Q1 2022	13,477	$2,379	$179.54	$147.91 - $226.74
Q4 2021	14,077	$3,302	$215.53	$199.33 - $227.72
Q3 2021	14,255	$2,974	$208.54	$195.25 - $219.93
Q2 2021	17,177	$3,538	$206.33	$194.28 - $218.25
Q1 2021	21,687	$4,643	$201.55	$190.45 - $215.84
Q4 2020	30,275	$6,550	$197.47	$171.24 - $214.73
Q3 2020	30,474	$6,090	$188.44	$172.53 - $201.15
Q2 2020	30,193	$6,007	$182.16	$136.65 - $217.57
Q1 2020	30,763	$4,794	$176.33	$117.17 - $198.13
Q4 2019	31,008	$5,984	$177.67	$169.74 - $186.58
Q3 2019	30,772	$6,094	$187.16	$179.22 - $195.89
Q2 2019	30,981	$6,117	$173.21	$164.99 - $187.12
Q1 2019	31,054	$5,483	$150.92	$131.24 - $169.66
Q4 2018	30,553	$4,502	$141.48	$126.10 - $150.86
Q3 2018	31,631	$4,959	$137.00	$128.06 - $148.09
Q2 2018	31,730	$4,453	$132.91	$122.30 - $138.58
Q1 2018	31,778	$4,356	$123.54	$115.47 - $129.02
Q4 2017	31,796	$4,266	$121.85	$117.53 - $126.30
Q3 2017	25,795	$3,318	$120.10	$116.11 - $122.59
Q2 2017	25,993	$3,451	$117.68	$113.27 - $123.01
Q1 2017	26,017	$3,261	$111.04	$106.47 - $114.69
Q4 2016	28,490	$3,339	$105.98	$100.13 - $110.74
Q3 2016	28,364	$3,453	$108.98	$105.46 - $112.42
Q2 2016	28,362	$3,364	$104.92	$98.81 - $109.58
Q1 2016	28,141	$3,138	$95.34	$88.43 - $102.02
Q4 2015	29,361	$3,358	$105.21	$98.01 - $109.49
Q3 2015	30,110	$3,304	$99.79	$91.88 - $104.89
Q2 2015	30,708	$3,472	$102.25	$97.79 - $105.41
Q1 2015	35,289	$4,036	$97.19	$86.65 - $103.73
Q4 2014	34,732	$3,630	$96.70	$89.74 - $101.94
Q3 2014	34,661	$3,980	$99.26	$94.57 - $104.65
Q2 2014	37,950	$4,225	$94.25	$89.51 - $98.33
Q1 2014	35,427	$3,826	$91.92	$85.62 - $98.30
Q4 2013	36,425	$3,798	$90.95	$84.34 - $94.74
Q3 2013	37,424	$3,696	$81.20	$74.57 - $86.97
Q2 2013	40,760	$3,472	$73.48	$68.51 - $77.84