ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

BANK OF MONTREAL /CAN/'s Holding History (CIK: 0000927971)

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

Q4 2025

Shares 263,046 Value ($000) $69,055 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 277,289 Value ($000) $75,938 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 248,711 Value ($000) $67,013 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 258,831 Value ($000) $65,619 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 361,663 Value ($000) $84,745 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 278,384 Value ($000) $70,874 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 394,756 Value ($000) $96,640 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 336,211 Value ($000) $77,722 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 273,396 Value ($000) $54,392 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 221,391 Value ($000) $39,452 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 212,281 Value ($000) $39,835 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 241,155 Value ($000) $40,010 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 285,509 Value ($000) $42,019 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 260,803 Value ($000) $38,565 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 301,732 Value ($000) $47,510 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 362,350 Value ($000) $65,390 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 491,451 Value ($000) $115,290 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 558,838 Value ($000) $119,658 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 582,154 Value ($000) $121,153 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 521,390 Value ($000) $112,604 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 519,834 Value ($000) $114,914 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 414,907 Value ($000) $81,501 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 443,012 Value ($000) $87,497 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 372,720 Value ($000) $56,714 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 475,832 Value ($000) $91,831 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 396,194 Value ($000) $78,462 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 435,956 Value ($000) $86,077 Avg Close $173.21 Range $164.99 - $187.12

Q1 2019

Shares 327,140 Value ($000) $57,753 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 368,864 Value ($000) $54,352 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 307,791 Value ($000) $48,256 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 223,233 Value ($000) $31,326 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 284,820 Value ($000) $39,042 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 263,448 Value ($000) $35,350 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 200,170 Value ($000) $25,744 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 192,419 Value ($000) $25,543 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 186,447 Value ($000) $23,370 Avg Close $111.04 Range $106.47 - $114.69

Q4 2016

Shares 167,396 Value ($000) $19,541 Avg Close $105.98 Range $100.13 - $110.74

Q3 2016

Shares 165,398 Value ($000) $20,133 Avg Close $108.98 Range $105.46 - $112.42

Q2 2016

Shares 165,032 Value ($000) $19,574 Avg Close $104.92 Range $98.81 - $109.58

Q1 2016

Shares 159,354 Value ($000) $17,770 Avg Close $95.34 Range $88.43 - $102.02

Q4 2015

Shares 177,464 Value ($000) $20,298 Avg Close $105.21 Range $98.01 - $109.49

Q3 2015

Shares 185,144 Value ($000) $20,314 Avg Close $99.79 Range $91.88 - $104.89

Q2 2015

Shares 182,512 Value ($000) $20,636 Avg Close $102.25 Range $97.79 - $105.41

Q1 2015

Shares 181,662 Value ($000) $20,778 Avg Close $97.19 Range $86.65 - $103.73

Q4 2014

Shares 165,242 Value ($000) $17,272 Avg Close $96.70 Range $89.74 - $101.94

Q3 2014

Shares 146,603 Value ($000) $16,833 Avg Close $99.26 Range $94.57 - $104.65

Q2 2014

Shares 163,929 Value ($000) $18,253 Avg Close $94.25 Range $89.51 - $98.33

Q1 2014

Shares 91,870 Value ($000) $9,921 Avg Close $91.92 Range $85.62 - $98.30

Q4 2013

Shares 93,278 Value ($000) $9,726 Avg Close $90.95 Range $84.34 - $94.74

Q3 2013

Shares 93,288 Value ($000) $9,214 Avg Close $81.20 Range $74.57 - $86.97

Q2 2013

Shares 87,175 Value ($000) $7,427 Avg Close $73.48 Range $68.51 - $77.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	263,046	$69,055	$265.71	$251.04 - $281.41
Q3 2025	277,289	$75,938	$270.32	$253.71 - $284.56
Q2 2025	248,711	$67,013	$252.35	$219.93 - $269.19
Q1 2025	258,831	$65,619	$249.61	$225.31 - $270.90
Q4 2024	361,663	$84,745	$245.53	$230.70 - $259.26
Q3 2024	278,384	$70,874	$241.07	$217.65 - $253.31
Q2 2024	394,756	$96,640	$227.14	$213.29 - $242.24
Q1 2024	336,211	$77,722	$207.94	$189.63 - $227.85
Q4 2023	273,396	$54,392	$175.85	$153.18 - $197.06
Q3 2023	221,391	$39,452	$177.30	$163.22 - $186.52
Q2 2023	212,281	$39,835	$167.31	$156.95 - $182.94
Q1 2023	241,155	$40,010	$150.99	$139.35 - $161.29
Q4 2022	285,509	$42,019	$141.81	$126.42 - $153.48
Q3 2022	260,803	$38,565	$156.07	$138.29 - $171.23
Q2 2022	301,732	$47,510	$158.99	$137.82 - $177.76
Q1 2022	362,350	$65,390	$179.54	$147.91 - $226.74
Q4 2021	491,451	$115,290	$215.53	$199.33 - $227.72
Q3 2021	558,838	$119,658	$208.54	$195.25 - $219.93
Q2 2021	582,154	$121,153	$206.33	$194.28 - $218.25
Q1 2021	521,390	$112,604	$201.55	$190.45 - $215.84
Q4 2020	519,834	$114,914	$197.47	$171.24 - $214.73
Q3 2020	414,907	$81,501	$188.44	$172.53 - $201.15
Q2 2020	443,012	$87,497	$182.16	$136.65 - $217.57
Q1 2020	372,720	$56,714	$176.33	$117.17 - $198.13
Q4 2019	475,832	$91,831	$177.67	$169.74 - $186.58
Q3 2019	396,194	$78,462	$187.16	$179.22 - $195.89
Q2 2019	435,956	$86,077	$173.21	$164.99 - $187.12
Q1 2019	327,140	$57,753	$150.92	$131.24 - $169.66
Q4 2018	368,864	$54,352	$141.48	$126.10 - $150.86
Q3 2018	307,791	$48,256	$137.00	$128.06 - $148.09
Q2 2018	223,233	$31,326	$132.91	$122.30 - $138.58
Q1 2018	284,820	$39,042	$123.54	$115.47 - $129.02
Q4 2017	263,448	$35,350	$121.85	$117.53 - $126.30
Q3 2017	200,170	$25,744	$120.10	$116.11 - $122.59
Q2 2017	192,419	$25,543	$117.68	$113.27 - $123.01
Q1 2017	186,447	$23,370	$111.04	$106.47 - $114.69
Q4 2016	167,396	$19,541	$105.98	$100.13 - $110.74
Q3 2016	165,398	$20,133	$108.98	$105.46 - $112.42
Q2 2016	165,032	$19,574	$104.92	$98.81 - $109.58
Q1 2016	159,354	$17,770	$95.34	$88.43 - $102.02
Q4 2015	177,464	$20,298	$105.21	$98.01 - $109.49
Q3 2015	185,144	$20,314	$99.79	$91.88 - $104.89
Q2 2015	182,512	$20,636	$102.25	$97.79 - $105.41
Q1 2015	181,662	$20,778	$97.19	$86.65 - $103.73
Q4 2014	165,242	$17,272	$96.70	$89.74 - $101.94
Q3 2014	146,603	$16,833	$99.26	$94.57 - $104.65
Q2 2014	163,929	$18,253	$94.25	$89.51 - $98.33
Q1 2014	91,870	$9,921	$91.92	$85.62 - $98.30
Q4 2013	93,278	$9,726	$90.95	$84.34 - $94.74
Q3 2013	93,288	$9,214	$81.20	$74.57 - $86.97
Q2 2013	87,175	$7,427	$73.48	$68.51 - $77.84