ECOLAB INC

Ticker: ECL CUSIP: 278865100 Class: COM

S&T Bank/PA's Holding History (CIK: 0001010911)

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

Q4 2025

Shares 22 Value ($000) $6 Avg Close $265.71 Range $251.04 - $281.41

Q3 2025

Shares 24 Value ($000) $7 Avg Close $270.32 Range $253.71 - $284.56

Q2 2025

Shares 24 Value ($000) $6 Avg Close $252.35 Range $219.93 - $269.19

Q1 2025

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

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	22	$6	$265.71	$251.04 - $281.41
Q3 2025	24	$7	$270.32	$253.71 - $284.56
Q2 2025	24	$6	$252.35	$219.93 - $269.19
Q1 2025	5	$1	$249.61	$225.31 - $270.90