ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

BROWN BROTHERS HARRIMAN & CO's Holding History (CIK: 0000014661)

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

Q4 2025

Shares 169,806 Value ($000) $44,577 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 62,230 Value ($000) $17,042 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 62,250 Value ($000) $16,773 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 61,462 Value ($000) $15,582 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 63,597 Value ($000) $14,902 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 66,401 Value ($000) $16,954 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 67,110 Value ($000) $15,972 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 69,105 Value ($000) $15,956 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 72,713 Value ($000) $14,423 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 7,966 Value ($000) $1,349 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 9,037 Value ($000) $1,687 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 10,148 Value ($000) $1,680 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 10,906 Value ($000) $1,587 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 10,257 Value ($000) $1,481 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 11,165 Value ($000) $1,717 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 10,836 Value ($000) $1,913 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 19,121 Value ($000) $4,486 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 10,798 Value ($000) $2,253 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 12,750 Value ($000) $2,626 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 11,208 Value ($000) $2,399 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 11,772 Value ($000) $2,547 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 11,357 Value ($000) $2,270 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 11,610 Value ($000) $2,310 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 11,742 Value ($000) $1,830 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 30,485 Value ($000) $5,883 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 30,573 Value ($000) $6,055 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 30,427 Value ($000) $6,008 Avg Close $173.21 Range $164.99 - $187.12

Q1 2019

Shares 30,357 Value ($000) $5,359 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 26,697 Value ($000) $3,934 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 26,834 Value ($000) $4,207 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 19,310 Value ($000) $2,710 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 19,259 Value ($000) $2,640 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 13,835 Value ($000) $1,856 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 13,816 Value ($000) $1,777 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 15,816 Value ($000) $2,100 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 16,300 Value ($000) $2,043 Avg Close $111.04 Range $106.47 - $114.69

Q4 2016

Shares 10,658 Value ($000) $1,249 Avg Close $105.98 Range $100.13 - $110.74

Q3 2016

Shares 10,906 Value ($000) $1,327 Avg Close $108.98 Range $105.46 - $112.42

Q2 2016

Shares 11,646 Value ($000) $1,381 Avg Close $104.92 Range $98.81 - $109.58

Q1 2016

Shares 10,950 Value ($000) $1,221 Avg Close $95.34 Range $88.43 - $102.02

Q4 2015

Shares 10,633 Value ($000) $1,216 Avg Close $105.21 Range $98.01 - $109.49

Q3 2015

Shares 10,818 Value ($000) $1,187 Avg Close $99.79 Range $91.88 - $104.89

Q2 2015

Shares 11,717 Value ($000) $1,325 Avg Close $102.25 Range $97.79 - $105.41

Q1 2015

Shares 6,975 Value ($000) $798 Avg Close $97.19 Range $86.65 - $103.73

Q4 2014

Shares 15,375 Value ($000) $1,607 Avg Close $96.70 Range $89.74 - $101.94

Q3 2014

Shares 15,820 Value ($000) $1,817 Avg Close $99.26 Range $94.57 - $104.65

Q2 2014

Shares 15,945 Value ($000) $1,775 Avg Close $94.25 Range $89.51 - $98.33

Q1 2014

Shares 16,213 Value ($000) $1,751 Avg Close $91.92 Range $85.62 - $98.30

Q4 2013

Shares 19,799 Value ($000) $2,064 Avg Close $90.95 Range $84.34 - $94.74

Q3 2013

Shares 18,755 Value ($000) $1,852 Avg Close $81.20 Range $74.57 - $86.97

Q2 2013

Shares 45,936 Value ($000) $3,913 Avg Close $73.48 Range $68.51 - $77.84

Q1 2013

Shares 31,133 Value ($000) $2,496 Avg Close $65.61 Range $62.45 - $70.20

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	169,806	$44,577	$265.71	$251.04 - $281.41
Q3 2025	62,230	$17,042	$270.32	$253.71 - $284.56
Q2 2025	62,250	$16,773	$252.35	$219.93 - $269.19
Q1 2025	61,462	$15,582	$249.61	$225.31 - $270.90
Q4 2024	63,597	$14,902	$245.53	$230.70 - $259.26
Q3 2024	66,401	$16,954	$241.07	$217.65 - $253.31
Q2 2024	67,110	$15,972	$227.14	$213.29 - $242.24
Q1 2024	69,105	$15,956	$207.94	$189.63 - $227.85
Q4 2023	72,713	$14,423	$175.85	$153.18 - $197.06
Q3 2023	7,966	$1,349	$177.30	$163.22 - $186.52
Q2 2023	9,037	$1,687	$167.31	$156.95 - $182.94
Q1 2023	10,148	$1,680	$150.99	$139.35 - $161.29
Q4 2022	10,906	$1,587	$141.81	$126.42 - $153.48
Q3 2022	10,257	$1,481	$156.07	$138.29 - $171.23
Q2 2022	11,165	$1,717	$158.99	$137.82 - $177.76
Q1 2022	10,836	$1,913	$179.54	$147.91 - $226.74
Q4 2021	19,121	$4,486	$215.53	$199.33 - $227.72
Q3 2021	10,798	$2,253	$208.54	$195.25 - $219.93
Q2 2021	12,750	$2,626	$206.33	$194.28 - $218.25
Q1 2021	11,208	$2,399	$201.55	$190.45 - $215.84
Q4 2020	11,772	$2,547	$197.47	$171.24 - $214.73
Q3 2020	11,357	$2,270	$188.44	$172.53 - $201.15
Q2 2020	11,610	$2,310	$182.16	$136.65 - $217.57
Q1 2020	11,742	$1,830	$176.33	$117.17 - $198.13
Q4 2019	30,485	$5,883	$177.67	$169.74 - $186.58
Q3 2019	30,573	$6,055	$187.16	$179.22 - $195.89
Q2 2019	30,427	$6,008	$173.21	$164.99 - $187.12
Q1 2019	30,357	$5,359	$150.92	$131.24 - $169.66
Q4 2018	26,697	$3,934	$141.48	$126.10 - $150.86
Q3 2018	26,834	$4,207	$137.00	$128.06 - $148.09
Q2 2018	19,310	$2,710	$132.91	$122.30 - $138.58
Q1 2018	19,259	$2,640	$123.54	$115.47 - $129.02
Q4 2017	13,835	$1,856	$121.85	$117.53 - $126.30
Q3 2017	13,816	$1,777	$120.10	$116.11 - $122.59
Q2 2017	15,816	$2,100	$117.68	$113.27 - $123.01
Q1 2017	16,300	$2,043	$111.04	$106.47 - $114.69
Q4 2016	10,658	$1,249	$105.98	$100.13 - $110.74
Q3 2016	10,906	$1,327	$108.98	$105.46 - $112.42
Q2 2016	11,646	$1,381	$104.92	$98.81 - $109.58
Q1 2016	10,950	$1,221	$95.34	$88.43 - $102.02
Q4 2015	10,633	$1,216	$105.21	$98.01 - $109.49
Q3 2015	10,818	$1,187	$99.79	$91.88 - $104.89
Q2 2015	11,717	$1,325	$102.25	$97.79 - $105.41
Q1 2015	6,975	$798	$97.19	$86.65 - $103.73
Q4 2014	15,375	$1,607	$96.70	$89.74 - $101.94
Q3 2014	15,820	$1,817	$99.26	$94.57 - $104.65
Q2 2014	15,945	$1,775	$94.25	$89.51 - $98.33
Q1 2014	16,213	$1,751	$91.92	$85.62 - $98.30
Q4 2013	19,799	$2,064	$90.95	$84.34 - $94.74
Q3 2013	18,755	$1,852	$81.20	$74.57 - $86.97
Q2 2013	45,936	$3,913	$73.48	$68.51 - $77.84
Q1 2013	31,133	$2,496	$65.61	$62.45 - $70.20