ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

ADAGE CAPITAL PARTNERS GP, L.L.C.'s Holding History (CIK: 0001165408)

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

Q4 2025

Shares 230,125 Value ($000) $60,412 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 202,125 Value ($000) $55,354 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 176,125 Value ($000) $47,455 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 185,025 Value ($000) $46,908 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 168,425 Value ($000) $39,465 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 247,725 Value ($000) $63,252 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 243,825 Value ($000) $58,030 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 248,925 Value ($000) $57,477 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 216,525 Value ($000) $42,948 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 252,225 Value ($000) $42,727 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 246,825 Value ($000) $46,080 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 248,125 Value ($000) $41,072 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 252,025 Value ($000) $36,685 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 252,625 Value ($000) $36,484 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 198,825 Value ($000) $30,571 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 260,325 Value ($000) $45,963 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 265,625 Value ($000) $62,313 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 336,625 Value ($000) $70,227 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 230,425 Value ($000) $47,461 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 218,925 Value ($000) $46,865 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 265,424 Value ($000) $57,427 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 135,024 Value ($000) $26,983 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 182,171 Value ($000) $36,243 Avg Close $182.16 Range $136.65 - $217.57

Q4 2019

Shares 353,980 Value ($000) $68,315 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 262,880 Value ($000) $52,061 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 88,480 Value ($000) $17,469 Avg Close $173.21 Range $164.99 - $187.12

Q4 2018

Shares 37,169 Value ($000) $5,477 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 9,565 Value ($000) $1,500 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 269,865 Value ($000) $37,870 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 349,665 Value ($000) $47,929 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 368,905 Value ($000) $49,500 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 466,072 Value ($000) $59,942 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 231,814 Value ($000) $30,773 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 199,837 Value ($000) $25,048 Avg Close $111.04 Range $106.47 - $114.69

Q4 2016

Shares 376,737 Value ($000) $44,161 Avg Close $105.98 Range $100.13 - $110.74

Q3 2016

Shares 406,937 Value ($000) $49,532 Avg Close $108.98 Range $105.46 - $112.42

Q2 2016

Shares 389,637 Value ($000) $46,211 Avg Close $104.92 Range $98.81 - $109.58

Q1 2016

Shares 401,837 Value ($000) $44,813 Avg Close $95.34 Range $88.43 - $102.02

Q4 2015

Shares 402,038 Value ($000) $45,985 Avg Close $105.21 Range $98.01 - $109.49

Q3 2015

Shares 404,938 Value ($000) $44,431 Avg Close $99.79 Range $91.88 - $104.89

Q2 2015

Shares 669,938 Value ($000) $75,751 Avg Close $102.25 Range $97.79 - $105.41

Q1 2015

Shares 594,938 Value ($000) $68,050 Avg Close $97.19 Range $86.65 - $103.73

Q4 2014

Shares 1,645,547 Value ($000) $171,993 Avg Close $96.70 Range $89.74 - $101.94

Q3 2014

Shares 647,138 Value ($000) $74,312 Avg Close $99.26 Range $94.57 - $104.65

Q2 2014

Shares 853,138 Value ($000) $94,989 Avg Close $94.25 Range $89.51 - $98.33

Q1 2014

Shares 709,638 Value ($000) $77,634 Avg Close $91.92 Range $85.62 - $98.30

Q4 2013

Shares 416,638 Value ($000) $43,444 Avg Close $90.95 Range $84.34 - $94.74

Q3 2013

Shares 408,638 Value ($000) $40,358 Avg Close $81.20 Range $74.57 - $86.97

Q2 2013

Shares 938,638 Value ($000) $79,963 Avg Close $73.48 Range $68.51 - $77.84

Q1 2013

Shares 383,627 Value ($000) $30,760 Avg Close $65.61 Range $62.45 - $70.20

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	230,125	$60,412	$265.71	$251.04 - $281.41
Q3 2025	202,125	$55,354	$270.32	$253.71 - $284.56
Q2 2025	176,125	$47,455	$252.35	$219.93 - $269.19
Q1 2025	185,025	$46,908	$249.61	$225.31 - $270.90
Q4 2024	168,425	$39,465	$245.53	$230.70 - $259.26
Q3 2024	247,725	$63,252	$241.07	$217.65 - $253.31
Q2 2024	243,825	$58,030	$227.14	$213.29 - $242.24
Q1 2024	248,925	$57,477	$207.94	$189.63 - $227.85
Q4 2023	216,525	$42,948	$175.85	$153.18 - $197.06
Q3 2023	252,225	$42,727	$177.30	$163.22 - $186.52
Q2 2023	246,825	$46,080	$167.31	$156.95 - $182.94
Q1 2023	248,125	$41,072	$150.99	$139.35 - $161.29
Q4 2022	252,025	$36,685	$141.81	$126.42 - $153.48
Q3 2022	252,625	$36,484	$156.07	$138.29 - $171.23
Q2 2022	198,825	$30,571	$158.99	$137.82 - $177.76
Q1 2022	260,325	$45,963	$179.54	$147.91 - $226.74
Q4 2021	265,625	$62,313	$215.53	$199.33 - $227.72
Q3 2021	336,625	$70,227	$208.54	$195.25 - $219.93
Q2 2021	230,425	$47,461	$206.33	$194.28 - $218.25
Q1 2021	218,925	$46,865	$201.55	$190.45 - $215.84
Q4 2020	265,424	$57,427	$197.47	$171.24 - $214.73
Q3 2020	135,024	$26,983	$188.44	$172.53 - $201.15
Q2 2020	182,171	$36,243	$182.16	$136.65 - $217.57
Q4 2019	353,980	$68,315	$177.67	$169.74 - $186.58
Q3 2019	262,880	$52,061	$187.16	$179.22 - $195.89
Q2 2019	88,480	$17,469	$173.21	$164.99 - $187.12
Q4 2018	37,169	$5,477	$141.48	$126.10 - $150.86
Q3 2018	9,565	$1,500	$137.00	$128.06 - $148.09
Q2 2018	269,865	$37,870	$132.91	$122.30 - $138.58
Q1 2018	349,665	$47,929	$123.54	$115.47 - $129.02
Q4 2017	368,905	$49,500	$121.85	$117.53 - $126.30
Q3 2017	466,072	$59,942	$120.10	$116.11 - $122.59
Q2 2017	231,814	$30,773	$117.68	$113.27 - $123.01
Q1 2017	199,837	$25,048	$111.04	$106.47 - $114.69
Q4 2016	376,737	$44,161	$105.98	$100.13 - $110.74
Q3 2016	406,937	$49,532	$108.98	$105.46 - $112.42
Q2 2016	389,637	$46,211	$104.92	$98.81 - $109.58
Q1 2016	401,837	$44,813	$95.34	$88.43 - $102.02
Q4 2015	402,038	$45,985	$105.21	$98.01 - $109.49
Q3 2015	404,938	$44,431	$99.79	$91.88 - $104.89
Q2 2015	669,938	$75,751	$102.25	$97.79 - $105.41
Q1 2015	594,938	$68,050	$97.19	$86.65 - $103.73
Q4 2014	1,645,547	$171,993	$96.70	$89.74 - $101.94
Q3 2014	647,138	$74,312	$99.26	$94.57 - $104.65
Q2 2014	853,138	$94,989	$94.25	$89.51 - $98.33
Q1 2014	709,638	$77,634	$91.92	$85.62 - $98.30
Q4 2013	416,638	$43,444	$90.95	$84.34 - $94.74
Q3 2013	408,638	$40,358	$81.20	$74.57 - $86.97
Q2 2013	938,638	$79,963	$73.48	$68.51 - $77.84
Q1 2013	383,627	$30,760	$65.61	$62.45 - $70.20