AVISTA CORP

Ticker: AVA CUSIP: 05379B107 Class: Common Stock

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q2 2020

Shares 6,275 Value ($000) $228 Avg Close $30.48 Range $25.82 - $35.07

Q4 2018

Shares 10,814 Value ($000) $459 Avg Close $36.19 Range $30.77 - $38.41

Q3 2018

Shares 22,854 Value ($000) $1,156 Avg Close $37.08 Range $35.90 - $38.29

Q2 2018

Shares 47,355 Value ($000) $2,494 Avg Close $37.64 Range $36.23 - $38.27

Q1 2018

Shares 46,398 Value ($000) $2,377 Avg Close $36.12 Range $34.13 - $37.40

Q4 2017

Shares 74,509 Value ($000) $3,836 Avg Close $36.82 Range $36.30 - $37.16

Q3 2017

Shares 43,836 Value ($000) $2,269 Avg Close $35.25 Range $28.98 - $37.15

Q1 2014

Shares 83,300 Value ($000) $2,553 Avg Close $18.00 Range $17.07 - $19.19

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2020	6,275	$228	$30.48	$25.82 - $35.07
Q4 2018	10,814	$459	$36.19	$30.77 - $38.41
Q3 2018	22,854	$1,156	$37.08	$35.90 - $38.29
Q2 2018	47,355	$2,494	$37.64	$36.23 - $38.27
Q1 2018	46,398	$2,377	$36.12	$34.13 - $37.40
Q4 2017	74,509	$3,836	$36.82	$36.30 - $37.16
Q3 2017	43,836	$2,269	$35.25	$28.98 - $37.15
Q1 2014	83,300	$2,553	$18.00	$17.07 - $19.19