ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

Northstar Group, Inc.'s Holding History (CIK: 0001631408)

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

Q4 2025

Shares 24,462 Value ($000) $6,422 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 24,736 Value ($000) $6,774 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 24,770 Value ($000) $6,674 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 24,930 Value ($000) $6,320 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 25,026 Value ($000) $5,864 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 24,998 Value ($000) $6,383 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 24,990 Value ($000) $5,948 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 25,029 Value ($000) $5,779 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 25,019 Value ($000) $4,963 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 25,006 Value ($000) $4,236 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 24,979 Value ($000) $4,664 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 25,521 Value ($000) $4,225 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 27,232 Value ($000) $3,964 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 28,472 Value ($000) $4,112 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 28,799 Value ($000) $4,428 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 29,182 Value ($000) $5,153 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 29,157 Value ($000) $6,840 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 28,731 Value ($000) $5,994 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 27,933 Value ($000) $5,753 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 26,972 Value ($000) $5,774 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 25,284 Value ($000) $5,470 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 25,039 Value ($000) $5,004 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 23,555 Value ($000) $4,686 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 23,643 Value ($000) $3,689 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 21,578 Value ($000) $4,165 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 18,924 Value ($000) $3,747 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 17,631 Value ($000) $3,481 Avg Close $173.21 Range $164.99 - $187.12

Q1 2019

Shares 16,315 Value ($000) $2,885 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 15,577 Value ($000) $2,295 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 15,389 Value ($000) $2,412 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 14,556 Value ($000) $2,042 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 12,965 Value ($000) $1,777 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 10,855 Value ($000) $1,463 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 9,930 Value ($000) $1,303 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 7,540 Value ($000) $1,001 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 3,325 Value ($000) $418 Avg Close $111.04 Range $106.47 - $114.69

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	24,462	$6,422	$265.71	$251.04 - $281.41
Q3 2025	24,736	$6,774	$270.32	$253.71 - $284.56
Q2 2025	24,770	$6,674	$252.35	$219.93 - $269.19
Q1 2025	24,930	$6,320	$249.61	$225.31 - $270.90
Q4 2024	25,026	$5,864	$245.53	$230.70 - $259.26
Q3 2024	24,998	$6,383	$241.07	$217.65 - $253.31
Q2 2024	24,990	$5,948	$227.14	$213.29 - $242.24
Q1 2024	25,029	$5,779	$207.94	$189.63 - $227.85
Q4 2023	25,019	$4,963	$175.85	$153.18 - $197.06
Q3 2023	25,006	$4,236	$177.30	$163.22 - $186.52
Q2 2023	24,979	$4,664	$167.31	$156.95 - $182.94
Q1 2023	25,521	$4,225	$150.99	$139.35 - $161.29
Q4 2022	27,232	$3,964	$141.81	$126.42 - $153.48
Q3 2022	28,472	$4,112	$156.07	$138.29 - $171.23
Q2 2022	28,799	$4,428	$158.99	$137.82 - $177.76
Q1 2022	29,182	$5,153	$179.54	$147.91 - $226.74
Q4 2021	29,157	$6,840	$215.53	$199.33 - $227.72
Q3 2021	28,731	$5,994	$208.54	$195.25 - $219.93
Q2 2021	27,933	$5,753	$206.33	$194.28 - $218.25
Q1 2021	26,972	$5,774	$201.55	$190.45 - $215.84
Q4 2020	25,284	$5,470	$197.47	$171.24 - $214.73
Q3 2020	25,039	$5,004	$188.44	$172.53 - $201.15
Q2 2020	23,555	$4,686	$182.16	$136.65 - $217.57
Q1 2020	23,643	$3,689	$176.33	$117.17 - $198.13
Q4 2019	21,578	$4,165	$177.67	$169.74 - $186.58
Q3 2019	18,924	$3,747	$187.16	$179.22 - $195.89
Q2 2019	17,631	$3,481	$173.21	$164.99 - $187.12
Q1 2019	16,315	$2,885	$150.92	$131.24 - $169.66
Q4 2018	15,577	$2,295	$141.48	$126.10 - $150.86
Q3 2018	15,389	$2,412	$137.00	$128.06 - $148.09
Q2 2018	14,556	$2,042	$132.91	$122.30 - $138.58
Q1 2018	12,965	$1,777	$123.54	$115.47 - $129.02
Q4 2017	10,855	$1,463	$121.85	$117.53 - $126.30
Q3 2017	9,930	$1,303	$120.10	$116.11 - $122.59
Q2 2017	7,540	$1,001	$117.68	$113.27 - $123.01
Q1 2017	3,325	$418	$111.04	$106.47 - $114.69