ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

OPPENHEIMER & CO INC's Holding History (CIK: 0000822581)

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

Q4 2025

Shares 4,965 Value ($000) $1,303 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 4,843 Value ($000) $1,326 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 4,845 Value ($000) $1,305 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

Shares 5,278 Value ($000) $1,338 Avg Close $249.61 Range $225.31 - $270.90

Q4 2024

Shares 4,394 Value ($000) $1,030 Avg Close $245.53 Range $230.70 - $259.26

Q3 2024

Shares 4,360 Value ($000) $1,113 Avg Close $241.07 Range $217.65 - $253.31

Q2 2024

Shares 4,710 Value ($000) $1,121 Avg Close $227.14 Range $213.29 - $242.24

Q1 2024

Shares 4,585 Value ($000) $1,059 Avg Close $207.94 Range $189.63 - $227.85

Q4 2023

Shares 5,697 Value ($000) $1,130 Avg Close $175.85 Range $153.18 - $197.06

Q3 2023

Shares 5,775 Value ($000) $978 Avg Close $177.30 Range $163.22 - $186.52

Q2 2023

Shares 5,763 Value ($000) $1,076 Avg Close $167.31 Range $156.95 - $182.94

Q1 2023

Shares 5,907 Value ($000) $978 Avg Close $150.99 Range $139.35 - $161.29

Q4 2022

Shares 5,737 Value ($000) $835 Avg Close $141.81 Range $126.42 - $153.48

Q3 2022

Shares 7,005 Value ($000) $1,012 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 6,412 Value ($000) $986 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 6,703 Value ($000) $1,183 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 6,258 Value ($000) $1,468 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 6,600 Value ($000) $1,377 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 8,687 Value ($000) $1,789 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 7,999 Value ($000) $1,712 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 8,690 Value ($000) $1,880 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 8,801 Value ($000) $1,759 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 9,715 Value ($000) $1,933 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 9,778 Value ($000) $1,524 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 8,206 Value ($000) $1,584 Avg Close $177.67 Range $169.74 - $186.58

Q3 2019

Shares 9,247 Value ($000) $1,832 Avg Close $187.16 Range $179.22 - $195.89

Q2 2019

Shares 11,245 Value ($000) $2,220 Avg Close $173.21 Range $164.99 - $187.12

Q1 2019

Shares 11,780 Value ($000) $2,079 Avg Close $150.92 Range $131.24 - $169.66

Q4 2018

Shares 9,717 Value ($000) $1,431 Avg Close $141.48 Range $126.10 - $150.86

Q3 2018

Shares 10,009 Value ($000) $1,569 Avg Close $137.00 Range $128.06 - $148.09

Q2 2018

Shares 10,457 Value ($000) $1,467 Avg Close $132.91 Range $122.30 - $138.58

Q1 2018

Shares 11,382 Value ($000) $1,560 Avg Close $123.54 Range $115.47 - $129.02

Q4 2017

Shares 11,279 Value ($000) $1,514 Avg Close $121.85 Range $117.53 - $126.30

Q3 2017

Shares 12,014 Value ($000) $1,545 Avg Close $120.10 Range $116.11 - $122.59

Q2 2017

Shares 11,423 Value ($000) $1,517 Avg Close $117.68 Range $113.27 - $123.01

Q1 2017

Shares 13,604 Value ($000) $1,705 Avg Close $111.04 Range $106.47 - $114.69

Q4 2016

Shares 13,362 Value ($000) $1,566 Avg Close $105.98 Range $100.13 - $110.74

Q3 2016

Shares 41,401 Value ($000) $5,039 Avg Close $108.98 Range $105.46 - $112.42

Q2 2016

Shares 46,708 Value ($000) $5,539 Avg Close $104.92 Range $98.81 - $109.58

Q1 2016

Shares 45,348 Value ($000) $5,056 Avg Close $95.34 Range $88.43 - $102.02

Q4 2015

Shares 53,528 Value ($000) $6,122 Avg Close $105.21 Range $98.01 - $109.49

Q3 2015

Shares 15,409 Value ($000) $1,691 Avg Close $99.79 Range $91.88 - $104.89

Q2 2015

Shares 8,795 Value ($000) $994 Avg Close $102.25 Range $97.79 - $105.41

Q1 2015

Shares 9,111 Value ($000) $1,042 Avg Close $97.19 Range $86.65 - $103.73

Q4 2014

Shares 10,744 Value ($000) $1,123 Avg Close $96.70 Range $89.74 - $101.94

Q3 2014

Shares 11,614 Value ($000) $1,333 Avg Close $99.26 Range $94.57 - $104.65

Q2 2014

Shares 13,485 Value ($000) $1,501 Avg Close $94.25 Range $89.51 - $98.33

Q1 2014

Shares 13,116 Value ($000) $1,417 Avg Close $91.92 Range $85.62 - $98.30

Q4 2013

Shares 14,305 Value ($000) $1,492 Avg Close $90.95 Range $84.34 - $94.74

Q3 2013

Shares 14,319 Value ($000) $1,414 Avg Close $81.20 Range $74.57 - $86.97

Q2 2013

Shares 13,563 Value ($000) $1,155 Avg Close $73.48 Range $68.51 - $77.84

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	4,965	$1,303	$265.71	$251.04 - $281.41
Q3 2025	4,843	$1,326	$270.32	$253.71 - $284.56
Q2 2025	4,845	$1,305	$252.35	$219.93 - $269.19
Q1 2025	5,278	$1,338	$249.61	$225.31 - $270.90
Q4 2024	4,394	$1,030	$245.53	$230.70 - $259.26
Q3 2024	4,360	$1,113	$241.07	$217.65 - $253.31
Q2 2024	4,710	$1,121	$227.14	$213.29 - $242.24
Q1 2024	4,585	$1,059	$207.94	$189.63 - $227.85
Q4 2023	5,697	$1,130	$175.85	$153.18 - $197.06
Q3 2023	5,775	$978	$177.30	$163.22 - $186.52
Q2 2023	5,763	$1,076	$167.31	$156.95 - $182.94
Q1 2023	5,907	$978	$150.99	$139.35 - $161.29
Q4 2022	5,737	$835	$141.81	$126.42 - $153.48
Q3 2022	7,005	$1,012	$156.07	$138.29 - $171.23
Q2 2022	6,412	$986	$158.99	$137.82 - $177.76
Q1 2022	6,703	$1,183	$179.54	$147.91 - $226.74
Q4 2021	6,258	$1,468	$215.53	$199.33 - $227.72
Q3 2021	6,600	$1,377	$208.54	$195.25 - $219.93
Q2 2021	8,687	$1,789	$206.33	$194.28 - $218.25
Q1 2021	7,999	$1,712	$201.55	$190.45 - $215.84
Q4 2020	8,690	$1,880	$197.47	$171.24 - $214.73
Q3 2020	8,801	$1,759	$188.44	$172.53 - $201.15
Q2 2020	9,715	$1,933	$182.16	$136.65 - $217.57
Q1 2020	9,778	$1,524	$176.33	$117.17 - $198.13
Q4 2019	8,206	$1,584	$177.67	$169.74 - $186.58
Q3 2019	9,247	$1,832	$187.16	$179.22 - $195.89
Q2 2019	11,245	$2,220	$173.21	$164.99 - $187.12
Q1 2019	11,780	$2,079	$150.92	$131.24 - $169.66
Q4 2018	9,717	$1,431	$141.48	$126.10 - $150.86
Q3 2018	10,009	$1,569	$137.00	$128.06 - $148.09
Q2 2018	10,457	$1,467	$132.91	$122.30 - $138.58
Q1 2018	11,382	$1,560	$123.54	$115.47 - $129.02
Q4 2017	11,279	$1,514	$121.85	$117.53 - $126.30
Q3 2017	12,014	$1,545	$120.10	$116.11 - $122.59
Q2 2017	11,423	$1,517	$117.68	$113.27 - $123.01
Q1 2017	13,604	$1,705	$111.04	$106.47 - $114.69
Q4 2016	13,362	$1,566	$105.98	$100.13 - $110.74
Q3 2016	41,401	$5,039	$108.98	$105.46 - $112.42
Q2 2016	46,708	$5,539	$104.92	$98.81 - $109.58
Q1 2016	45,348	$5,056	$95.34	$88.43 - $102.02
Q4 2015	53,528	$6,122	$105.21	$98.01 - $109.49
Q3 2015	15,409	$1,691	$99.79	$91.88 - $104.89
Q2 2015	8,795	$994	$102.25	$97.79 - $105.41
Q1 2015	9,111	$1,042	$97.19	$86.65 - $103.73
Q4 2014	10,744	$1,123	$96.70	$89.74 - $101.94
Q3 2014	11,614	$1,333	$99.26	$94.57 - $104.65
Q2 2014	13,485	$1,501	$94.25	$89.51 - $98.33
Q1 2014	13,116	$1,417	$91.92	$85.62 - $98.30
Q4 2013	14,305	$1,492	$90.95	$84.34 - $94.74
Q3 2013	14,319	$1,414	$81.20	$74.57 - $86.97
Q2 2013	13,563	$1,155	$73.48	$68.51 - $77.84