ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO's Holding History (CIK: 0001007280)

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

Q4 2025

Shares 100,438 Value ($000) $26,367 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 99,676 Value ($000) $27,297 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 101,775 Value ($000) $27,422 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 102,689 Value ($000) $26,034 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 106,087 Value ($000) $24,858 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 111,339 Value ($000) $28,428 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 112,243 Value ($000) $26,714 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 116,848 Value ($000) $26,980 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 125,384 Value ($000) $24,870 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 124,918 Value ($000) $21,161 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 135,526 Value ($000) $25,301 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 143,663 Value ($000) $23,781 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 154,599 Value ($000) $22,503 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 153,050 Value ($000) $22,103 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 151,944 Value ($000) $23,363 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 152,491 Value ($000) $26,924 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 158,523 Value ($000) $37,188 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 162,240 Value ($000) $33,847 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 161,907 Value ($000) $33,348 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 162,952 Value ($000) $34,883 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 151,300 Value ($000) $32,735 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 140,980 Value ($000) $28,173 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 137,150 Value ($000) $27,286 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 139,751 Value ($000) $21,777 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 157,393 Value ($000) $30,375 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 158,278 Value ($000) $31,345 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 157,452 Value ($000) $31,087 Avg Close $173.21 Range $164.99 - $187.12

Q1 2019

Shares 162,512 Value ($000) $28,690 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 194,012 Value ($000) $28,588 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 166,862 Value ($000) $26,161 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 169,252 Value ($000) $23,751 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 170,670 Value ($000) $23,394 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 177,158 Value ($000) $23,771 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 176,341 Value ($000) $22,679 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 173,850 Value ($000) $23,079 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 174,961 Value ($000) $21,930 Avg Close $111.04 Range $106.47 - $114.69

Q4 2016

Shares 174,961 Value ($000) $21,538 Avg Close $105.98 Range $100.13 - $110.74

Q3 2016

Shares 173,071 Value ($000) $21,066 Avg Close $108.98 Range $105.46 - $112.42

Q2 2016

Shares 173,071 Value ($000) $20,526 Avg Close $104.92 Range $98.81 - $109.58

Q1 2016

Shares 180,277 Value ($000) $20,104 Avg Close $95.34 Range $88.43 - $102.02

Q4 2015

Shares 192,096 Value ($000) $21,972 Avg Close $105.21 Range $98.01 - $109.49

Q3 2015

Shares 191,970 Value ($000) $21,063 Avg Close $99.79 Range $91.88 - $104.89

Q2 2015

Shares 195,121 Value ($000) $22,062 Avg Close $102.25 Range $97.79 - $105.41

Q1 2015

Shares 197,701 Value ($000) $22,613 Avg Close $97.19 Range $86.65 - $103.73

Q4 2014

Shares 193,572 Value ($000) $20,232 Avg Close $96.70 Range $89.74 - $101.94

Q3 2014

Shares 193,692 Value ($000) $22,242 Avg Close $99.26 Range $94.57 - $104.65

Q2 2014

Shares 205,416 Value ($000) $22,871 Avg Close $94.25 Range $89.51 - $98.33

Q1 2014

Shares 206,961 Value ($000) $22,350 Avg Close $91.92 Range $85.62 - $98.30

Q4 2013

Shares 224,272 Value ($000) $23,385 Avg Close $90.95 Range $84.34 - $94.74

Q3 2013

Shares 225,799 Value ($000) $22,300 Avg Close $81.20 Range $74.57 - $86.97

Q2 2013

Shares 232,769 Value ($000) $19,830 Avg Close $73.48 Range $68.51 - $77.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	100,438	$26,367	$265.71	$251.04 - $281.41
Q3 2025	99,676	$27,297	$270.32	$253.71 - $284.56
Q2 2025	101,775	$27,422	$252.35	$219.93 - $269.19
Q1 2025	102,689	$26,034	$249.61	$225.31 - $270.90
Q4 2024	106,087	$24,858	$245.53	$230.70 - $259.26
Q3 2024	111,339	$28,428	$241.07	$217.65 - $253.31
Q2 2024	112,243	$26,714	$227.14	$213.29 - $242.24
Q1 2024	116,848	$26,980	$207.94	$189.63 - $227.85
Q4 2023	125,384	$24,870	$175.85	$153.18 - $197.06
Q3 2023	124,918	$21,161	$177.30	$163.22 - $186.52
Q2 2023	135,526	$25,301	$167.31	$156.95 - $182.94
Q1 2023	143,663	$23,781	$150.99	$139.35 - $161.29
Q4 2022	154,599	$22,503	$141.81	$126.42 - $153.48
Q3 2022	153,050	$22,103	$156.07	$138.29 - $171.23
Q2 2022	151,944	$23,363	$158.99	$137.82 - $177.76
Q1 2022	152,491	$26,924	$179.54	$147.91 - $226.74
Q4 2021	158,523	$37,188	$215.53	$199.33 - $227.72
Q3 2021	162,240	$33,847	$208.54	$195.25 - $219.93
Q2 2021	161,907	$33,348	$206.33	$194.28 - $218.25
Q1 2021	162,952	$34,883	$201.55	$190.45 - $215.84
Q4 2020	151,300	$32,735	$197.47	$171.24 - $214.73
Q3 2020	140,980	$28,173	$188.44	$172.53 - $201.15
Q2 2020	137,150	$27,286	$182.16	$136.65 - $217.57
Q1 2020	139,751	$21,777	$176.33	$117.17 - $198.13
Q4 2019	157,393	$30,375	$177.67	$169.74 - $186.58
Q3 2019	158,278	$31,345	$187.16	$179.22 - $195.89
Q2 2019	157,452	$31,087	$173.21	$164.99 - $187.12
Q1 2019	162,512	$28,690	$150.92	$131.24 - $169.66
Q4 2018	194,012	$28,588	$141.48	$126.10 - $150.86
Q3 2018	166,862	$26,161	$137.00	$128.06 - $148.09
Q2 2018	169,252	$23,751	$132.91	$122.30 - $138.58
Q1 2018	170,670	$23,394	$123.54	$115.47 - $129.02
Q4 2017	177,158	$23,771	$121.85	$117.53 - $126.30
Q3 2017	176,341	$22,679	$120.10	$116.11 - $122.59
Q2 2017	173,850	$23,079	$117.68	$113.27 - $123.01
Q1 2017	174,961	$21,930	$111.04	$106.47 - $114.69
Q4 2016	174,961	$21,538	$105.98	$100.13 - $110.74
Q3 2016	173,071	$21,066	$108.98	$105.46 - $112.42
Q2 2016	173,071	$20,526	$104.92	$98.81 - $109.58
Q1 2016	180,277	$20,104	$95.34	$88.43 - $102.02
Q4 2015	192,096	$21,972	$105.21	$98.01 - $109.49
Q3 2015	191,970	$21,063	$99.79	$91.88 - $104.89
Q2 2015	195,121	$22,062	$102.25	$97.79 - $105.41
Q1 2015	197,701	$22,613	$97.19	$86.65 - $103.73
Q4 2014	193,572	$20,232	$96.70	$89.74 - $101.94
Q3 2014	193,692	$22,242	$99.26	$94.57 - $104.65
Q2 2014	205,416	$22,871	$94.25	$89.51 - $98.33
Q1 2014	206,961	$22,350	$91.92	$85.62 - $98.30
Q4 2013	224,272	$23,385	$90.95	$84.34 - $94.74
Q3 2013	225,799	$22,300	$81.20	$74.57 - $86.97
Q2 2013	232,769	$19,830	$73.48	$68.51 - $77.84