ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

HARTFORD INVESTMENT MANAGEMENT CO's Holding History (CIK: 0000922439)

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

Q4 2025

Shares 14,768 Value ($000) $3,877 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 15,022 Value ($000) $4,114 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 15,273 Value ($000) $4,115 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 15,402 Value ($000) $3,905 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 15,636 Value ($000) $3,664 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 15,938 Value ($000) $4,069 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 16,303 Value ($000) $3,880 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 16,417 Value ($000) $3,791 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 17,108 Value ($000) $3,393 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 20,341 Value ($000) $3,446 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 20,576 Value ($000) $3,841 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 23,390 Value ($000) $3,872 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 20,417 Value ($000) $3 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 26,130 Value ($000) $3,774 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 26,882 Value ($000) $4,133 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 25,488 Value ($000) $4,500 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 27,307 Value ($000) $6,406 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 25,232 Value ($000) $5,264 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 28,144 Value ($000) $5,797 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 29,162 Value ($000) $6,243 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 30,297 Value ($000) $6,555 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 28,115 Value ($000) $5,619 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 28,974 Value ($000) $5,764 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 31,348 Value ($000) $4,885 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 31,233 Value ($000) $6,028 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 31,821 Value ($000) $6,302 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 27,980 Value ($000) $5,524 Avg Close $173.21 Range $164.99 - $187.12

Q1 2019

Shares 28,253 Value ($000) $4,988 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 72,294 Value ($000) $10,653 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 72,589 Value ($000) $11,381 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 29,697 Value ($000) $4,167 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 49,450 Value ($000) $6,778 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 53,609 Value ($000) $7,193 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 63,168 Value ($000) $8,124 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 63,899 Value ($000) $8,483 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 67,181 Value ($000) $8,420 Avg Close $111.04 Range $106.47 - $114.69

Q4 2016

Shares 71,373 Value ($000) $8,366 Avg Close $105.98 Range $100.13 - $110.74

Q3 2016

Shares 68,972 Value ($000) $8,395 Avg Close $108.98 Range $105.46 - $112.42

Q2 2016

Shares 67,043 Value ($000) $7,951 Avg Close $104.92 Range $98.81 - $109.58

Q1 2016

Shares 64,694 Value ($000) $7,215 Avg Close $95.34 Range $88.43 - $102.02

Q4 2015

Shares 64,436 Value ($000) $7,370 Avg Close $105.21 Range $98.01 - $109.49

Q3 2015

Shares 66,264 Value ($000) $7,270 Avg Close $99.79 Range $91.88 - $104.89

Q2 2015

Shares 66,402 Value ($000) $7,508 Avg Close $102.25 Range $97.79 - $105.41

Q1 2015

Shares 65,366 Value ($000) $7,477 Avg Close $97.19 Range $86.65 - $103.73

Q4 2014

Shares 67,549 Value ($000) $7,060 Avg Close $96.70 Range $89.74 - $101.94

Q3 2014

Shares 68,945 Value ($000) $7,917 Avg Close $99.26 Range $94.57 - $104.65

Q2 2014

Shares 71,496 Value ($000) $7,960 Avg Close $94.25 Range $89.51 - $98.33

Q1 2014

Shares 73,153 Value ($000) $7,900 Avg Close $91.92 Range $85.62 - $98.30

Q4 2013

Shares 74,913 Value ($000) $7,811 Avg Close $90.95 Range $84.34 - $94.74

Q3 2013

Shares 79,814 Value ($000) $7,882 Avg Close $81.20 Range $74.57 - $86.97

Q2 2013

Shares 81,810 Value ($000) $6,969 Avg Close $73.48 Range $68.51 - $77.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	14,768	$3,877	$265.71	$251.04 - $281.41
Q3 2025	15,022	$4,114	$270.32	$253.71 - $284.56
Q2 2025	15,273	$4,115	$252.35	$219.93 - $269.19
Q1 2025	15,402	$3,905	$249.61	$225.31 - $270.90
Q4 2024	15,636	$3,664	$245.53	$230.70 - $259.26
Q3 2024	15,938	$4,069	$241.07	$217.65 - $253.31
Q2 2024	16,303	$3,880	$227.14	$213.29 - $242.24
Q1 2024	16,417	$3,791	$207.94	$189.63 - $227.85
Q4 2023	17,108	$3,393	$175.85	$153.18 - $197.06
Q3 2023	20,341	$3,446	$177.30	$163.22 - $186.52
Q2 2023	20,576	$3,841	$167.31	$156.95 - $182.94
Q1 2023	23,390	$3,872	$150.99	$139.35 - $161.29
Q4 2022	20,417	$3	$141.81	$126.42 - $153.48
Q3 2022	26,130	$3,774	$156.07	$138.29 - $171.23
Q2 2022	26,882	$4,133	$158.99	$137.82 - $177.76
Q1 2022	25,488	$4,500	$179.54	$147.91 - $226.74
Q4 2021	27,307	$6,406	$215.53	$199.33 - $227.72
Q3 2021	25,232	$5,264	$208.54	$195.25 - $219.93
Q2 2021	28,144	$5,797	$206.33	$194.28 - $218.25
Q1 2021	29,162	$6,243	$201.55	$190.45 - $215.84
Q4 2020	30,297	$6,555	$197.47	$171.24 - $214.73
Q3 2020	28,115	$5,619	$188.44	$172.53 - $201.15
Q2 2020	28,974	$5,764	$182.16	$136.65 - $217.57
Q1 2020	31,348	$4,885	$176.33	$117.17 - $198.13
Q4 2019	31,233	$6,028	$177.67	$169.74 - $186.58
Q3 2019	31,821	$6,302	$187.16	$179.22 - $195.89
Q2 2019	27,980	$5,524	$173.21	$164.99 - $187.12
Q1 2019	28,253	$4,988	$150.92	$131.24 - $169.66
Q4 2018	72,294	$10,653	$141.48	$126.10 - $150.86
Q3 2018	72,589	$11,381	$137.00	$128.06 - $148.09
Q2 2018	29,697	$4,167	$132.91	$122.30 - $138.58
Q1 2018	49,450	$6,778	$123.54	$115.47 - $129.02
Q4 2017	53,609	$7,193	$121.85	$117.53 - $126.30
Q3 2017	63,168	$8,124	$120.10	$116.11 - $122.59
Q2 2017	63,899	$8,483	$117.68	$113.27 - $123.01
Q1 2017	67,181	$8,420	$111.04	$106.47 - $114.69
Q4 2016	71,373	$8,366	$105.98	$100.13 - $110.74
Q3 2016	68,972	$8,395	$108.98	$105.46 - $112.42
Q2 2016	67,043	$7,951	$104.92	$98.81 - $109.58
Q1 2016	64,694	$7,215	$95.34	$88.43 - $102.02
Q4 2015	64,436	$7,370	$105.21	$98.01 - $109.49
Q3 2015	66,264	$7,270	$99.79	$91.88 - $104.89
Q2 2015	66,402	$7,508	$102.25	$97.79 - $105.41
Q1 2015	65,366	$7,477	$97.19	$86.65 - $103.73
Q4 2014	67,549	$7,060	$96.70	$89.74 - $101.94
Q3 2014	68,945	$7,917	$99.26	$94.57 - $104.65
Q2 2014	71,496	$7,960	$94.25	$89.51 - $98.33
Q1 2014	73,153	$7,900	$91.92	$85.62 - $98.30
Q4 2013	74,913	$7,811	$90.95	$84.34 - $94.74
Q3 2013	79,814	$7,882	$81.20	$74.57 - $86.97
Q2 2013	81,810	$6,969	$73.48	$68.51 - $77.84