ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

TEACHER RETIREMENT SYSTEM OF TEXAS's Holding History (CIK: 0000796848)

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

Q4 2025

Shares 113,169 Value ($000) $29,709 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 167,304 Value ($000) $45,818 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 139,746 Value ($000) $37,653 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 149,132 Value ($000) $37,808 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 233,452 Value ($000) $55 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 230,713 Value ($000) $59 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 224,641 Value ($000) $53 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 179,015 Value ($000) $41 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 131,376 Value ($000) $26 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 87,131 Value ($000) $15 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 68,928 Value ($000) $13 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 83,211 Value ($000) $14 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 28,384 Value ($000) $4 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 36,829 Value ($000) $5,319 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 45,845 Value ($000) $7,049 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 77,943 Value ($000) $13,762 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 49,984 Value ($000) $11,726 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 41,206 Value ($000) $8,596 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 53,700 Value ($000) $11,061 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 28,878 Value ($000) $6,182 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 32,185 Value ($000) $6,964 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 48,682 Value ($000) $9,729 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 37,982 Value ($000) $7,557 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 56,935 Value ($000) $8,872 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 146,951 Value ($000) $28,360 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 131,960 Value ($000) $26,133 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 233,239 Value ($000) $46,051 Avg Close $173.21 Range $164.99 - $187.12

Q1 2019

Shares 255,316 Value ($000) $45,073 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 252,548 Value ($000) $37,213 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 235,696 Value ($000) $36,952 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 222,589 Value ($000) $31,236 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 194,629 Value ($000) $26,678 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 167,702 Value ($000) $22,502 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 226,959 Value ($000) $29,189 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 99,847 Value ($000) $13,255 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 84,791 Value ($000) $10,628 Avg Close $111.04 Range $106.47 - $114.69

Q4 2016

Shares 2,751 Value ($000) $322 Avg Close $105.98 Range $100.13 - $110.74

Q3 2016

Shares 10,210 Value ($000) $1,243 Avg Close $108.98 Range $105.46 - $112.42

Q2 2016

Shares 18,973 Value ($000) $2,250 Avg Close $104.92 Range $98.81 - $109.58

Q1 2016

Shares 14,473 Value ($000) $1,614 Avg Close $95.34 Range $88.43 - $102.02

Q4 2015

Shares 155,372 Value ($000) $17,771 Avg Close $105.21 Range $98.01 - $109.49

Q3 2015

Shares 195,949 Value ($000) $21,500 Avg Close $99.79 Range $91.88 - $104.89

Q2 2015

Shares 10,450 Value ($000) $1,182 Avg Close $102.25 Range $97.79 - $105.41

Q1 2015

Shares 8,186 Value ($000) $936 Avg Close $97.19 Range $86.65 - $103.73

Q4 2014

Shares 8,168 Value ($000) $854 Avg Close $96.70 Range $89.74 - $101.94

Q3 2014

Shares 154,300 Value ($000) $17,718 Avg Close $99.26 Range $94.57 - $104.65

Q2 2014

Shares 155,743 Value ($000) $17,340 Avg Close $94.25 Range $89.51 - $98.33

Q3 2013

Shares 173,466 Value ($000) $17,132 Avg Close $81.20 Range $74.57 - $86.97

Q2 2013

Shares 171,943 Value ($000) $14,648 Avg Close $73.48 Range $68.51 - $77.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	113,169	$29,709	$265.71	$251.04 - $281.41
Q3 2025	167,304	$45,818	$270.32	$253.71 - $284.56
Q2 2025	139,746	$37,653	$252.35	$219.93 - $269.19
Q1 2025	149,132	$37,808	$249.61	$225.31 - $270.90
Q4 2024	233,452	$55	$245.53	$230.70 - $259.26
Q3 2024	230,713	$59	$241.07	$217.65 - $253.31
Q2 2024	224,641	$53	$227.14	$213.29 - $242.24
Q1 2024	179,015	$41	$207.94	$189.63 - $227.85
Q4 2023	131,376	$26	$175.85	$153.18 - $197.06
Q3 2023	87,131	$15	$177.30	$163.22 - $186.52
Q2 2023	68,928	$13	$167.31	$156.95 - $182.94
Q1 2023	83,211	$14	$150.99	$139.35 - $161.29
Q4 2022	28,384	$4	$141.81	$126.42 - $153.48
Q3 2022	36,829	$5,319	$156.07	$138.29 - $171.23
Q2 2022	45,845	$7,049	$158.99	$137.82 - $177.76
Q1 2022	77,943	$13,762	$179.54	$147.91 - $226.74
Q4 2021	49,984	$11,726	$215.53	$199.33 - $227.72
Q3 2021	41,206	$8,596	$208.54	$195.25 - $219.93
Q2 2021	53,700	$11,061	$206.33	$194.28 - $218.25
Q1 2021	28,878	$6,182	$201.55	$190.45 - $215.84
Q4 2020	32,185	$6,964	$197.47	$171.24 - $214.73
Q3 2020	48,682	$9,729	$188.44	$172.53 - $201.15
Q2 2020	37,982	$7,557	$182.16	$136.65 - $217.57
Q1 2020	56,935	$8,872	$176.33	$117.17 - $198.13
Q4 2019	146,951	$28,360	$177.67	$169.74 - $186.58
Q3 2019	131,960	$26,133	$187.16	$179.22 - $195.89
Q2 2019	233,239	$46,051	$173.21	$164.99 - $187.12
Q1 2019	255,316	$45,073	$150.92	$131.24 - $169.66
Q4 2018	252,548	$37,213	$141.48	$126.10 - $150.86
Q3 2018	235,696	$36,952	$137.00	$128.06 - $148.09
Q2 2018	222,589	$31,236	$132.91	$122.30 - $138.58
Q1 2018	194,629	$26,678	$123.54	$115.47 - $129.02
Q4 2017	167,702	$22,502	$121.85	$117.53 - $126.30
Q3 2017	226,959	$29,189	$120.10	$116.11 - $122.59
Q2 2017	99,847	$13,255	$117.68	$113.27 - $123.01
Q1 2017	84,791	$10,628	$111.04	$106.47 - $114.69
Q4 2016	2,751	$322	$105.98	$100.13 - $110.74
Q3 2016	10,210	$1,243	$108.98	$105.46 - $112.42
Q2 2016	18,973	$2,250	$104.92	$98.81 - $109.58
Q1 2016	14,473	$1,614	$95.34	$88.43 - $102.02
Q4 2015	155,372	$17,771	$105.21	$98.01 - $109.49
Q3 2015	195,949	$21,500	$99.79	$91.88 - $104.89
Q2 2015	10,450	$1,182	$102.25	$97.79 - $105.41
Q1 2015	8,186	$936	$97.19	$86.65 - $103.73
Q4 2014	8,168	$854	$96.70	$89.74 - $101.94
Q3 2014	154,300	$17,718	$99.26	$94.57 - $104.65
Q2 2014	155,743	$17,340	$94.25	$89.51 - $98.33
Q3 2013	173,466	$17,132	$81.20	$74.57 - $86.97
Q2 2013	171,943	$14,648	$73.48	$68.51 - $77.84