ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

Asset Management One Co., Ltd.'s Holding History (CIK: 0001068855)

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

Q4 2025

Shares 113,460 Value ($000) $30,119 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 112,706 Value ($000) $30,866 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 111,897 Value ($000) $30,150 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 106,525 Value ($000) $27,006 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 101,001 Value ($000) $24,014 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 99,876 Value ($000) $25,501 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 99,896 Value ($000) $23,775 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 99,162 Value ($000) $22,897 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 103,407 Value ($000) $20,565 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 104,703 Value ($000) $17,737 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 105,368 Value ($000) $19,671 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 104,914 Value ($000) $17,366 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 101,046 Value ($000) $14,918 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 112,896 Value ($000) $16,304 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 114,787 Value ($000) $17,649 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 112,470 Value ($000) $19,857 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 117,400 Value ($000) $27,659 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 112,209 Value ($000) $23,409 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 117,726 Value ($000) $24,248 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 122,824 Value ($000) $26,292 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 127,917 Value ($000) $27,441 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 127,086 Value ($000) $25,397 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 130,898 Value ($000) $26,045 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 134,096 Value ($000) $20,894 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 132,753 Value ($000) $25,620 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 141,874 Value ($000) $28,096 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 138,722 Value ($000) $27,390 Avg Close $173.21 Range $164.99 - $187.12

Q1 2019

Shares 126,298 Value ($000) $22,296 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 410,545 Value ($000) $60,431 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 409,260 Value ($000) $64,165 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 410,725 Value ($000) $57,631 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 409,693 Value ($000) $56,156 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 412,974 Value ($000) $55,422 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 407,855 Value ($000) $52,468 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 411,180 Value ($000) $54,556 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 410,491 Value ($000) $51,451 Avg Close $111.04 Range $106.47 - $114.69

Q4 2016

Shares 452,297 Value ($000) $53,035 Avg Close $105.98 Range $100.13 - $110.74

Q3 2016

Shares 29,740 Value ($000) $3,596 Avg Close $108.98 Range $105.46 - $112.42

Q2 2016

Shares 28,807 Value ($000) $3,374 Avg Close $104.92 Range $98.81 - $109.58

Q1 2016

Shares 29,560 Value ($000) $3,318 Avg Close $95.34 Range $88.43 - $102.02

Q4 2015

Shares 23,787 Value ($000) $2,761 Avg Close $105.21 Range $98.01 - $109.49

Q3 2015

Shares 25,033 Value ($000) $2,717 Avg Close $99.79 Range $91.88 - $104.89

Q2 2015

Shares 25,033 Value ($000) $2,827 Avg Close $102.25 Range $97.79 - $105.41

Q1 2015

Shares 26,416 Value ($000) $3,031 Avg Close $97.19 Range $86.65 - $103.73

Q4 2014

Shares 26,416 Value ($000) $2,811 Avg Close $96.70 Range $89.74 - $101.94

Q3 2014

Shares 31,644 Value ($000) $3,674 Avg Close $99.26 Range $94.57 - $104.65

Q2 2014

Shares 31,038 Value ($000) $3,381 Avg Close $94.25 Range $89.51 - $98.33

Q1 2014

Shares 31,038 Value ($000) $3,304 Avg Close $91.92 Range $85.62 - $98.30

Q4 2013

Shares 30,883 Value ($000) $3,225 Avg Close $90.95 Range $84.34 - $94.74

Q3 2013

Shares 41,454 Value ($000) $4,071 Avg Close $81.20 Range $74.57 - $86.97

Q2 2013

Shares 39,290 Value ($000) $3,365 Avg Close $73.48 Range $68.51 - $77.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	113,460	$30,119	$265.71	$251.04 - $281.41
Q3 2025	112,706	$30,866	$270.32	$253.71 - $284.56
Q2 2025	111,897	$30,150	$252.35	$219.93 - $269.19
Q1 2025	106,525	$27,006	$249.61	$225.31 - $270.90
Q4 2024	101,001	$24,014	$245.53	$230.70 - $259.26
Q3 2024	99,876	$25,501	$241.07	$217.65 - $253.31
Q2 2024	99,896	$23,775	$227.14	$213.29 - $242.24
Q1 2024	99,162	$22,897	$207.94	$189.63 - $227.85
Q4 2023	103,407	$20,565	$175.85	$153.18 - $197.06
Q3 2023	104,703	$17,737	$177.30	$163.22 - $186.52
Q2 2023	105,368	$19,671	$167.31	$156.95 - $182.94
Q1 2023	104,914	$17,366	$150.99	$139.35 - $161.29
Q4 2022	101,046	$14,918	$141.81	$126.42 - $153.48
Q3 2022	112,896	$16,304	$156.07	$138.29 - $171.23
Q2 2022	114,787	$17,649	$158.99	$137.82 - $177.76
Q1 2022	112,470	$19,857	$179.54	$147.91 - $226.74
Q4 2021	117,400	$27,659	$215.53	$199.33 - $227.72
Q3 2021	112,209	$23,409	$208.54	$195.25 - $219.93
Q2 2021	117,726	$24,248	$206.33	$194.28 - $218.25
Q1 2021	122,824	$26,292	$201.55	$190.45 - $215.84
Q4 2020	127,917	$27,441	$197.47	$171.24 - $214.73
Q3 2020	127,086	$25,397	$188.44	$172.53 - $201.15
Q2 2020	130,898	$26,045	$182.16	$136.65 - $217.57
Q1 2020	134,096	$20,894	$176.33	$117.17 - $198.13
Q4 2019	132,753	$25,620	$177.67	$169.74 - $186.58
Q3 2019	141,874	$28,096	$187.16	$179.22 - $195.89
Q2 2019	138,722	$27,390	$173.21	$164.99 - $187.12
Q1 2019	126,298	$22,296	$150.92	$131.24 - $169.66
Q4 2018	410,545	$60,431	$141.48	$126.10 - $150.86
Q3 2018	409,260	$64,165	$137.00	$128.06 - $148.09
Q2 2018	410,725	$57,631	$132.91	$122.30 - $138.58
Q1 2018	409,693	$56,156	$123.54	$115.47 - $129.02
Q4 2017	412,974	$55,422	$121.85	$117.53 - $126.30
Q3 2017	407,855	$52,468	$120.10	$116.11 - $122.59
Q2 2017	411,180	$54,556	$117.68	$113.27 - $123.01
Q1 2017	410,491	$51,451	$111.04	$106.47 - $114.69
Q4 2016	452,297	$53,035	$105.98	$100.13 - $110.74
Q3 2016	29,740	$3,596	$108.98	$105.46 - $112.42
Q2 2016	28,807	$3,374	$104.92	$98.81 - $109.58
Q1 2016	29,560	$3,318	$95.34	$88.43 - $102.02
Q4 2015	23,787	$2,761	$105.21	$98.01 - $109.49
Q3 2015	25,033	$2,717	$99.79	$91.88 - $104.89
Q2 2015	25,033	$2,827	$102.25	$97.79 - $105.41
Q1 2015	26,416	$3,031	$97.19	$86.65 - $103.73
Q4 2014	26,416	$2,811	$96.70	$89.74 - $101.94
Q3 2014	31,644	$3,674	$99.26	$94.57 - $104.65
Q2 2014	31,038	$3,381	$94.25	$89.51 - $98.33
Q1 2014	31,038	$3,304	$91.92	$85.62 - $98.30
Q4 2013	30,883	$3,225	$90.95	$84.34 - $94.74
Q3 2013	41,454	$4,071	$81.20	$74.57 - $86.97
Q2 2013	39,290	$3,365	$73.48	$68.51 - $77.84