ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

TWO SIGMA INVESTMENTS, LP's Holding History (CIK: 0001179392)

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

Q4 2025

Shares 340,458 Value ($000) $89,377 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 231,461 Value ($000) $63,388 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 163,885 Value ($000) $44,157 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 406,261 Value ($000) $102,995 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 355,425 Value ($000) $83,283 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 420,344 Value ($000) $107,326 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 307,004 Value ($000) $73,067 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 338,465 Value ($000) $78,152 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 410,424 Value ($000) $81,408 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 359,329 Value ($000) $60,870 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 352,338 Value ($000) $65,778 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 961,398 Value ($000) $159,140 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 661,192 Value ($000) $96,243 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 374,744 Value ($000) $54,121 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 614,598 Value ($000) $94,501 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 671,454 Value ($000) $118,552 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 751,201 Value ($000) $176,224 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 694,587 Value ($000) $144,905 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 243,976 Value ($000) $50,252 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 178,810 Value ($000) $38,278 Avg Close $201.55 Range $190.45 - $215.84

Q3 2020

Shares 189,858 Value ($000) $37,941 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 33,474 Value ($000) $6,660 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 55,994 Value ($000) $8,726 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 162,522 Value ($000) $31,365 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 1,094 Value ($000) $217 Avg Close $187.16 Range $179.22 - $195.89

Q1 2019

Shares 2,350 Value ($000) $415 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 2,653 Value ($000) $391 Avg Close $141.48 Range $126.10 - $150.86

Q2 2018

Shares 25,598 Value ($000) $3,592 Avg Close $132.91 Range $122.30 - $138.58

Q3 2017

Shares 15,801 Value ($000) $2,032 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 1,594 Value ($000) $212 Avg Close $117.68 Range $113.27 - $123.01

Q4 2016

Shares 17,498 Value ($000) $2,051 Avg Close $105.98 Range $100.13 - $110.74

Q3 2016

Shares 12,060 Value ($000) $1,468 Avg Close $108.98 Range $105.46 - $112.42

Q3 2015

Shares 23,571 Value ($000) $2,586 Avg Close $99.79 Range $91.88 - $104.89

Q4 2014

Shares 145,963 Value ($000) $15,256 Avg Close $96.70 Range $89.74 - $101.94

Q2 2014

Shares 90,323 Value ($000) $10,057 Avg Close $94.25 Range $89.51 - $98.33

Q2 2013

Shares 108,412 Value ($000) $9,236 Avg Close $73.48 Range $68.51 - $77.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	340,458	$89,377	$265.71	$251.04 - $281.41
Q3 2025	231,461	$63,388	$270.32	$253.71 - $284.56
Q2 2025	163,885	$44,157	$252.35	$219.93 - $269.19
Q1 2025	406,261	$102,995	$249.61	$225.31 - $270.90
Q4 2024	355,425	$83,283	$245.53	$230.70 - $259.26
Q3 2024	420,344	$107,326	$241.07	$217.65 - $253.31
Q2 2024	307,004	$73,067	$227.14	$213.29 - $242.24
Q1 2024	338,465	$78,152	$207.94	$189.63 - $227.85
Q4 2023	410,424	$81,408	$175.85	$153.18 - $197.06
Q3 2023	359,329	$60,870	$177.30	$163.22 - $186.52
Q2 2023	352,338	$65,778	$167.31	$156.95 - $182.94
Q1 2023	961,398	$159,140	$150.99	$139.35 - $161.29
Q4 2022	661,192	$96,243	$141.81	$126.42 - $153.48
Q3 2022	374,744	$54,121	$156.07	$138.29 - $171.23
Q2 2022	614,598	$94,501	$158.99	$137.82 - $177.76
Q1 2022	671,454	$118,552	$179.54	$147.91 - $226.74
Q4 2021	751,201	$176,224	$215.53	$199.33 - $227.72
Q3 2021	694,587	$144,905	$208.54	$195.25 - $219.93
Q2 2021	243,976	$50,252	$206.33	$194.28 - $218.25
Q1 2021	178,810	$38,278	$201.55	$190.45 - $215.84
Q3 2020	189,858	$37,941	$188.44	$172.53 - $201.15
Q2 2020	33,474	$6,660	$182.16	$136.65 - $217.57
Q1 2020	55,994	$8,726	$176.33	$117.17 - $198.13
Q4 2019	162,522	$31,365	$177.67	$169.74 - $186.58
Q3 2019	1,094	$217	$187.16	$179.22 - $195.89
Q1 2019	2,350	$415	$150.92	$131.24 - $169.66
Q4 2018	2,653	$391	$141.48	$126.10 - $150.86
Q2 2018	25,598	$3,592	$132.91	$122.30 - $138.58
Q3 2017	15,801	$2,032	$120.10	$116.11 - $122.59
Q2 2017	1,594	$212	$117.68	$113.27 - $123.01
Q4 2016	17,498	$2,051	$105.98	$100.13 - $110.74
Q3 2016	12,060	$1,468	$108.98	$105.46 - $112.42
Q3 2015	23,571	$2,586	$99.79	$91.88 - $104.89
Q4 2014	145,963	$15,256	$96.70	$89.74 - $101.94
Q2 2014	90,323	$10,057	$94.25	$89.51 - $98.33
Q2 2013	108,412	$9,236	$73.48	$68.51 - $77.84