ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

NORTHEAST INVESTMENT MANAGEMENT's Holding History (CIK: 0001082215)

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

Q4 2025

Shares 5,753 Value ($000) $1,510 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 5,693 Value ($000) $1,559 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 5,744 Value ($000) $1,548 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 5,746 Value ($000) $1,457 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 5,527 Value ($000) $1,295 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 5,583 Value ($000) $1,426 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 5,531 Value ($000) $1,316 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 5,424 Value ($000) $1,252 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 5,489 Value ($000) $1,089 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 5,627 Value ($000) $953 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 5,580 Value ($000) $1,042 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 5,994 Value ($000) $992 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 23,157 Value ($000) $3 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 60,047 Value ($000) $8,672 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 77,894 Value ($000) $11,977 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 83,550 Value ($000) $14,752 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 89,172 Value ($000) $20,919 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 91,407 Value ($000) $19,069 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 94,097 Value ($000) $19,381 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 97,476 Value ($000) $20,867 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 95,550 Value ($000) $20,673 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 93,924 Value ($000) $18,770 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 92,715 Value ($000) $18,446 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 86,495 Value ($000) $13,479 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 83,587 Value ($000) $16,131 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 75,743 Value ($000) $15,000 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 70,134 Value ($000) $13,847 Avg Close $173.21 Range $164.99 - $187.12

Q1 2019

Shares 58,483 Value ($000) $10,325 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 48,374 Value ($000) $7,128 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 22,871 Value ($000) $3,586 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 4,954 Value ($000) $695 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 2,322 Value ($000) $318 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 2,322 Value ($000) $312 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 2,609 Value ($000) $336 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 2,043 Value ($000) $271 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 1,985 Value ($000) $249 Avg Close $111.04 Range $106.47 - $114.69

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	5,753	$1,510	$265.71	$251.04 - $281.41
Q3 2025	5,693	$1,559	$270.32	$253.71 - $284.56
Q2 2025	5,744	$1,548	$252.35	$219.93 - $269.19
Q1 2025	5,746	$1,457	$249.61	$225.31 - $270.90
Q4 2024	5,527	$1,295	$245.53	$230.70 - $259.26
Q3 2024	5,583	$1,426	$241.07	$217.65 - $253.31
Q2 2024	5,531	$1,316	$227.14	$213.29 - $242.24
Q1 2024	5,424	$1,252	$207.94	$189.63 - $227.85
Q4 2023	5,489	$1,089	$175.85	$153.18 - $197.06
Q3 2023	5,627	$953	$177.30	$163.22 - $186.52
Q2 2023	5,580	$1,042	$167.31	$156.95 - $182.94
Q1 2023	5,994	$992	$150.99	$139.35 - $161.29
Q4 2022	23,157	$3	$141.81	$126.42 - $153.48
Q3 2022	60,047	$8,672	$156.07	$138.29 - $171.23
Q2 2022	77,894	$11,977	$158.99	$137.82 - $177.76
Q1 2022	83,550	$14,752	$179.54	$147.91 - $226.74
Q4 2021	89,172	$20,919	$215.53	$199.33 - $227.72
Q3 2021	91,407	$19,069	$208.54	$195.25 - $219.93
Q2 2021	94,097	$19,381	$206.33	$194.28 - $218.25
Q1 2021	97,476	$20,867	$201.55	$190.45 - $215.84
Q4 2020	95,550	$20,673	$197.47	$171.24 - $214.73
Q3 2020	93,924	$18,770	$188.44	$172.53 - $201.15
Q2 2020	92,715	$18,446	$182.16	$136.65 - $217.57
Q1 2020	86,495	$13,479	$176.33	$117.17 - $198.13
Q4 2019	83,587	$16,131	$177.67	$169.74 - $186.58
Q3 2019	75,743	$15,000	$187.16	$179.22 - $195.89
Q2 2019	70,134	$13,847	$173.21	$164.99 - $187.12
Q1 2019	58,483	$10,325	$150.92	$131.24 - $169.66
Q4 2018	48,374	$7,128	$141.48	$126.10 - $150.86
Q3 2018	22,871	$3,586	$137.00	$128.06 - $148.09
Q2 2018	4,954	$695	$132.91	$122.30 - $138.58
Q1 2018	2,322	$318	$123.54	$115.47 - $129.02
Q4 2017	2,322	$312	$121.85	$117.53 - $126.30
Q3 2017	2,609	$336	$120.10	$116.11 - $122.59
Q2 2017	2,043	$271	$117.68	$113.27 - $123.01
Q1 2017	1,985	$249	$111.04	$106.47 - $114.69