AVISTA CORP

Ticker: AVA CUSIP: 05379B107 Class: Common Stock

Pentwater Capital Management LP's Holding History (CIK: 0001425851)

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

Q3 2018

Shares 1,367,721 Value ($000) $69,152 Avg Close $37.08 Range $35.90 - $38.29

Q2 2018

Shares 995,700 Value ($000) $52,434 Avg Close $37.64 Range $36.23 - $38.27

Q1 2018

Shares 864,000 Value ($000) $44,280 Avg Close $36.12 Range $34.13 - $37.40

Q4 2017

Shares 422,559 Value ($000) $21,758 Avg Close $36.82 Range $36.30 - $37.16

Q3 2017

Shares 268,755 Value ($000) $13,913 Avg Close $35.25 Range $28.98 - $37.15

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	1,367,721	$69,152	$37.08	$35.90 - $38.29
Q2 2018	995,700	$52,434	$37.64	$36.23 - $38.27
Q1 2018	864,000	$44,280	$36.12	$34.13 - $37.40
Q4 2017	422,559	$21,758	$36.82	$36.30 - $37.16
Q3 2017	268,755	$13,913	$35.25	$28.98 - $37.15