AVISTA CORP

Ticker: AVA CUSIP: 05379B107 Class: Common Stock

BROWN BROTHERS HARRIMAN & CO's Holding History (CIK: 0000014661)

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

Q4 2025

Shares 87 Value ($000) $3 Avg Close $38.78 Range $36.05 - $41.60

Q4 2023

Shares 275 Value ($000) $10 Avg Close $30.40 Range $27.22 - $33.43

Q3 2023

Shares 275 Value ($000) $9 Avg Close $31.62 Range $28.30 - $35.30

Q2 2023

Shares 275 Value ($000) $11 Avg Close $37.05 Range $33.57 - $39.26

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	87	$3	$38.78	$36.05 - $41.60
Q4 2023	275	$10	$30.40	$27.22 - $33.43
Q3 2023	275	$9	$31.62	$28.30 - $35.30
Q2 2023	275	$11	$37.05	$33.57 - $39.26