ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

KING LUTHER CAPITAL MANAGEMENT CORP's Holding History (CIK: 0000310051)

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

Q4 2025

Shares 933,077 Value ($000) $244,951 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 926,736 Value ($000) $253,796 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 908,118 Value ($000) $244,683 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 914,509 Value ($000) $231,846 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 916,647 Value ($000) $214,789 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 904,631 Value ($000) $230,979 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 897,367 Value ($000) $213,573 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 865,712 Value ($000) $199,893 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 671,840 Value ($000) $133,259 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 487,444 Value ($000) $82,573 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 469,941 Value ($000) $87,733 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 486,902 Value ($000) $80,597 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 802,718 Value ($000) $116,844 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 1,001,612 Value ($000) $144,653 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 1,007,867 Value ($000) $154,970 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 999,266 Value ($000) $176,430 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 996,597 Value ($000) $233,792 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 1,001,996 Value ($000) $209,036 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 1,004,324 Value ($000) $206,861 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 1,004,568 Value ($000) $215,048 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 1,001,275 Value ($000) $216,636 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 955,483 Value ($000) $190,944 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 956,640 Value ($000) $190,324 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 993,105 Value ($000) $154,755 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 1,022,931 Value ($000) $197,415 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 1,010,942 Value ($000) $200,207 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 1,010,176 Value ($000) $199,449 Avg Close $173.21 Range $164.99 - $187.12

Q1 2019

Shares 992,563 Value ($000) $175,227 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 866,021 Value ($000) $127,608 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 882,656 Value ($000) $138,383 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 882,339 Value ($000) $123,819 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 875,703 Value ($000) $120,033 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 838,511 Value ($000) $112,511 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 820,822 Value ($000) $105,566 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 817,279 Value ($000) $108,494 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 813,554 Value ($000) $101,971 Avg Close $111.04 Range $106.47 - $114.69

Q4 2016

Shares 791,074 Value ($000) $92,730 Avg Close $105.98 Range $100.13 - $110.74

Q3 2016

Shares 756,909 Value ($000) $92,131 Avg Close $108.98 Range $105.46 - $112.42

Q2 2016

Shares 718,526 Value ($000) $85,217 Avg Close $104.92 Range $98.81 - $109.58

Q1 2016

Shares 546,158 Value ($000) $60,908 Avg Close $95.34 Range $88.43 - $102.02

Q4 2015

Shares 417,389 Value ($000) $47,741 Avg Close $105.21 Range $98.01 - $109.49

Q3 2015

Shares 366,510 Value ($000) $40,213 Avg Close $99.79 Range $91.88 - $104.89

Q2 2015

Shares 8,175 Value ($000) $924 Avg Close $102.25 Range $97.79 - $105.41

Q1 2015

Shares 8,175 Value ($000) $935 Avg Close $97.19 Range $86.65 - $103.73

Q4 2014

Shares 8,175 Value ($000) $854 Avg Close $96.70 Range $89.74 - $101.94

Q3 2014

Shares 8,175 Value ($000) $939 Avg Close $99.26 Range $94.57 - $104.65

Q2 2014

Shares 8,175 Value ($000) $910 Avg Close $94.25 Range $89.51 - $98.33

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	933,077	$244,951	$265.71	$251.04 - $281.41
Q3 2025	926,736	$253,796	$270.32	$253.71 - $284.56
Q2 2025	908,118	$244,683	$252.35	$219.93 - $269.19
Q1 2025	914,509	$231,846	$249.61	$225.31 - $270.90
Q4 2024	916,647	$214,789	$245.53	$230.70 - $259.26
Q3 2024	904,631	$230,979	$241.07	$217.65 - $253.31
Q2 2024	897,367	$213,573	$227.14	$213.29 - $242.24
Q1 2024	865,712	$199,893	$207.94	$189.63 - $227.85
Q4 2023	671,840	$133,259	$175.85	$153.18 - $197.06
Q3 2023	487,444	$82,573	$177.30	$163.22 - $186.52
Q2 2023	469,941	$87,733	$167.31	$156.95 - $182.94
Q1 2023	486,902	$80,597	$150.99	$139.35 - $161.29
Q4 2022	802,718	$116,844	$141.81	$126.42 - $153.48
Q3 2022	1,001,612	$144,653	$156.07	$138.29 - $171.23
Q2 2022	1,007,867	$154,970	$158.99	$137.82 - $177.76
Q1 2022	999,266	$176,430	$179.54	$147.91 - $226.74
Q4 2021	996,597	$233,792	$215.53	$199.33 - $227.72
Q3 2021	1,001,996	$209,036	$208.54	$195.25 - $219.93
Q2 2021	1,004,324	$206,861	$206.33	$194.28 - $218.25
Q1 2021	1,004,568	$215,048	$201.55	$190.45 - $215.84
Q4 2020	1,001,275	$216,636	$197.47	$171.24 - $214.73
Q3 2020	955,483	$190,944	$188.44	$172.53 - $201.15
Q2 2020	956,640	$190,324	$182.16	$136.65 - $217.57
Q1 2020	993,105	$154,755	$176.33	$117.17 - $198.13
Q4 2019	1,022,931	$197,415	$177.67	$169.74 - $186.58
Q3 2019	1,010,942	$200,207	$187.16	$179.22 - $195.89
Q2 2019	1,010,176	$199,449	$173.21	$164.99 - $187.12
Q1 2019	992,563	$175,227	$150.92	$131.24 - $169.66
Q4 2018	866,021	$127,608	$141.48	$126.10 - $150.86
Q3 2018	882,656	$138,383	$137.00	$128.06 - $148.09
Q2 2018	882,339	$123,819	$132.91	$122.30 - $138.58
Q1 2018	875,703	$120,033	$123.54	$115.47 - $129.02
Q4 2017	838,511	$112,511	$121.85	$117.53 - $126.30
Q3 2017	820,822	$105,566	$120.10	$116.11 - $122.59
Q2 2017	817,279	$108,494	$117.68	$113.27 - $123.01
Q1 2017	813,554	$101,971	$111.04	$106.47 - $114.69
Q4 2016	791,074	$92,730	$105.98	$100.13 - $110.74
Q3 2016	756,909	$92,131	$108.98	$105.46 - $112.42
Q2 2016	718,526	$85,217	$104.92	$98.81 - $109.58
Q1 2016	546,158	$60,908	$95.34	$88.43 - $102.02
Q4 2015	417,389	$47,741	$105.21	$98.01 - $109.49
Q3 2015	366,510	$40,213	$99.79	$91.88 - $104.89
Q2 2015	8,175	$924	$102.25	$97.79 - $105.41
Q1 2015	8,175	$935	$97.19	$86.65 - $103.73
Q4 2014	8,175	$854	$96.70	$89.74 - $101.94
Q3 2014	8,175	$939	$99.26	$94.57 - $104.65
Q2 2014	8,175	$910	$94.25	$89.51 - $98.33