ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's Holding History (CIK: 0001644956)

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

Q3 2022

Shares 4,273 Value ($000) $617 Avg Close $156.07 Range $138.29 - $171.23

Q2 2022

Shares 191,860 Value ($000) $29,500 Avg Close $158.99 Range $137.82 - $177.76

Q1 2022

Shares 192,127 Value ($000) $33,922 Avg Close $179.54 Range $147.91 - $226.74

Q4 2021

Shares 186,969 Value ($000) $43,861 Avg Close $215.53 Range $199.33 - $227.72

Q3 2021

Shares 164,405 Value ($000) $34,298 Avg Close $208.54 Range $195.25 - $219.93

Q2 2021

Shares 166,020 Value ($000) $34,195 Avg Close $206.33 Range $194.28 - $218.25

Q1 2021

Shares 171,701 Value ($000) $36,756 Avg Close $201.55 Range $190.45 - $215.84

Q4 2020

Shares 169,337 Value ($000) $36,638 Avg Close $197.47 Range $171.24 - $214.73

Q3 2020

Shares 207,807 Value ($000) $41,528 Avg Close $188.44 Range $172.53 - $201.15

Q2 2020

Shares 19,029 Value ($000) $3,786 Avg Close $182.16 Range $136.65 - $217.57

Q1 2020

Shares 29,529 Value ($000) $4,602 Avg Close $176.33 Range $117.17 - $198.13

Q4 2019

Shares 29,529 Value ($000) $5,699 Avg Close $177.67 Range $169.74 - $186.58

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2022	4,273	$617	$156.07	$138.29 - $171.23
Q2 2022	191,860	$29,500	$158.99	$137.82 - $177.76
Q1 2022	192,127	$33,922	$179.54	$147.91 - $226.74
Q4 2021	186,969	$43,861	$215.53	$199.33 - $227.72
Q3 2021	164,405	$34,298	$208.54	$195.25 - $219.93
Q2 2021	166,020	$34,195	$206.33	$194.28 - $218.25
Q1 2021	171,701	$36,756	$201.55	$190.45 - $215.84
Q4 2020	169,337	$36,638	$197.47	$171.24 - $214.73
Q3 2020	207,807	$41,528	$188.44	$172.53 - $201.15
Q2 2020	19,029	$3,786	$182.16	$136.65 - $217.57
Q1 2020	29,529	$4,602	$176.33	$117.17 - $198.13
Q4 2019	29,529	$5,699	$177.67	$169.74 - $186.58