ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

EVERETT HARRIS & CO /CA/'s Holding History (CIK: 0001009254)

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

Q4 2025

Shares 73,957 Value ($000) $19,415 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 74,380 Value ($000) $20,370 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 74,706 Value ($000) $20,129 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 74,689 Value ($000) $18,935 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 74,714 Value ($000) $17,507 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 74,114 Value ($000) $18,924 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 74,914 Value ($000) $17,830 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 74,903 Value ($000) $17,295 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 74,903 Value ($000) $14,857 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 74,903 Value ($000) $12,689 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 74,903 Value ($000) $13,984 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 74,903 Value ($000) $12,399 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 75,802 Value ($000) $11,034 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 77,036 Value ($000) $11,126 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 76,996 Value ($000) $11,839 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 78,538 Value ($000) $13,867 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 78,476 Value ($000) $18,410 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 78,496 Value ($000) $16,376 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 78,496 Value ($000) $16,168 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 78,496 Value ($000) $16,804 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 80,274 Value ($000) $17,368 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 82,321 Value ($000) $16,451 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 82,446 Value ($000) $16,403 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 82,546 Value ($000) $12,863 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 82,813 Value ($000) $15,982 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 83,270 Value ($000) $16,491 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 83,570 Value ($000) $16,500 Avg Close $173.21 Range $164.99 - $187.12

Q1 2019

Shares 83,795 Value ($000) $14,793 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 83,995 Value ($000) $12,377 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 86,993 Value ($000) $13,639 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 89,093 Value ($000) $12,502 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 90,018 Value ($000) $12,339 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 90,318 Value ($000) $12,119 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 90,343 Value ($000) $11,619 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 90,593 Value ($000) $12,026 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 91,263 Value ($000) $11,439 Avg Close $111.04 Range $106.47 - $114.69

Q4 2016

Shares 91,555 Value ($000) $10,732 Avg Close $105.98 Range $100.13 - $110.74

Q3 2016

Shares 93,725 Value ($000) $11,408 Avg Close $108.98 Range $105.46 - $112.42

Q2 2016

Shares 93,725 Value ($000) $11,116 Avg Close $104.92 Range $98.81 - $109.58

Q1 2016

Shares 95,025 Value ($000) $10,597 Avg Close $95.34 Range $88.43 - $102.02

Q4 2015

Shares 96,125 Value ($000) $10,995 Avg Close $105.21 Range $98.01 - $109.49

Q3 2015

Shares 96,125 Value ($000) $10,547 Avg Close $99.79 Range $91.88 - $104.89

Q2 2015

Shares 96,659 Value ($000) $10,929 Avg Close $102.25 Range $97.79 - $105.41

Q1 2015

Shares 99,854 Value ($000) $11,421 Avg Close $97.19 Range $86.65 - $103.73

Q4 2014

Shares 99,954 Value ($000) $10,447 Avg Close $96.70 Range $89.74 - $101.94

Q3 2014

Shares 101,128 Value ($000) $11,613 Avg Close $99.26 Range $94.57 - $104.65

Q2 2014

Shares 101,978 Value ($000) $11,354 Avg Close $94.25 Range $89.51 - $98.33

Q1 2014

Shares 102,028 Value ($000) $11,018 Avg Close $91.92 Range $85.62 - $98.30

Q4 2013

Shares 102,028 Value ($000) $10,638 Avg Close $90.95 Range $84.34 - $94.74

Q3 2013

Shares 102,028 Value ($000) $10,076 Avg Close $81.20 Range $74.57 - $86.97

Q2 2013

Shares 102,028 Value ($000) $8,692 Avg Close $73.48 Range $68.51 - $77.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	73,957	$19,415	$265.71	$251.04 - $281.41
Q3 2025	74,380	$20,370	$270.32	$253.71 - $284.56
Q2 2025	74,706	$20,129	$252.35	$219.93 - $269.19
Q1 2025	74,689	$18,935	$249.61	$225.31 - $270.90
Q4 2024	74,714	$17,507	$245.53	$230.70 - $259.26
Q3 2024	74,114	$18,924	$241.07	$217.65 - $253.31
Q2 2024	74,914	$17,830	$227.14	$213.29 - $242.24
Q1 2024	74,903	$17,295	$207.94	$189.63 - $227.85
Q4 2023	74,903	$14,857	$175.85	$153.18 - $197.06
Q3 2023	74,903	$12,689	$177.30	$163.22 - $186.52
Q2 2023	74,903	$13,984	$167.31	$156.95 - $182.94
Q1 2023	74,903	$12,399	$150.99	$139.35 - $161.29
Q4 2022	75,802	$11,034	$141.81	$126.42 - $153.48
Q3 2022	77,036	$11,126	$156.07	$138.29 - $171.23
Q2 2022	76,996	$11,839	$158.99	$137.82 - $177.76
Q1 2022	78,538	$13,867	$179.54	$147.91 - $226.74
Q4 2021	78,476	$18,410	$215.53	$199.33 - $227.72
Q3 2021	78,496	$16,376	$208.54	$195.25 - $219.93
Q2 2021	78,496	$16,168	$206.33	$194.28 - $218.25
Q1 2021	78,496	$16,804	$201.55	$190.45 - $215.84
Q4 2020	80,274	$17,368	$197.47	$171.24 - $214.73
Q3 2020	82,321	$16,451	$188.44	$172.53 - $201.15
Q2 2020	82,446	$16,403	$182.16	$136.65 - $217.57
Q1 2020	82,546	$12,863	$176.33	$117.17 - $198.13
Q4 2019	82,813	$15,982	$177.67	$169.74 - $186.58
Q3 2019	83,270	$16,491	$187.16	$179.22 - $195.89
Q2 2019	83,570	$16,500	$173.21	$164.99 - $187.12
Q1 2019	83,795	$14,793	$150.92	$131.24 - $169.66
Q4 2018	83,995	$12,377	$141.48	$126.10 - $150.86
Q3 2018	86,993	$13,639	$137.00	$128.06 - $148.09
Q2 2018	89,093	$12,502	$132.91	$122.30 - $138.58
Q1 2018	90,018	$12,339	$123.54	$115.47 - $129.02
Q4 2017	90,318	$12,119	$121.85	$117.53 - $126.30
Q3 2017	90,343	$11,619	$120.10	$116.11 - $122.59
Q2 2017	90,593	$12,026	$117.68	$113.27 - $123.01
Q1 2017	91,263	$11,439	$111.04	$106.47 - $114.69
Q4 2016	91,555	$10,732	$105.98	$100.13 - $110.74
Q3 2016	93,725	$11,408	$108.98	$105.46 - $112.42
Q2 2016	93,725	$11,116	$104.92	$98.81 - $109.58
Q1 2016	95,025	$10,597	$95.34	$88.43 - $102.02
Q4 2015	96,125	$10,995	$105.21	$98.01 - $109.49
Q3 2015	96,125	$10,547	$99.79	$91.88 - $104.89
Q2 2015	96,659	$10,929	$102.25	$97.79 - $105.41
Q1 2015	99,854	$11,421	$97.19	$86.65 - $103.73
Q4 2014	99,954	$10,447	$96.70	$89.74 - $101.94
Q3 2014	101,128	$11,613	$99.26	$94.57 - $104.65
Q2 2014	101,978	$11,354	$94.25	$89.51 - $98.33
Q1 2014	102,028	$11,018	$91.92	$85.62 - $98.30
Q4 2013	102,028	$10,638	$90.95	$84.34 - $94.74
Q3 2013	102,028	$10,076	$81.20	$74.57 - $86.97
Q2 2013	102,028	$8,692	$73.48	$68.51 - $77.84