AVISTA CORP

Ticker: AVA CUSIP: 05379B107 Class: Common Stock

Board of Trustees of The Leland Stanford Junior University's Holding History (CIK: 0001315828)

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

Q4 2015

Shares 539,106 Value ($000) $19,068 Avg Close $22.74 Range $21.53 - $25.21

Q3 2015

Shares 539,106 Value ($000) $17,925 Avg Close $20.96 Range $19.68 - $22.33

Q2 2015

Shares 539,106 Value ($000) $16,524 Avg Close $20.96 Range $19.69 - $22.33

Q1 2015

Shares 538,920 Value ($000) $18,420 Avg Close $22.48 Range $20.78 - $24.58

Q4 2014

Shares 538,920 Value ($000) $19,051 Avg Close $21.73 Range $19.40 - $23.96

Q3 2014

Shares 538,920 Value ($000) $16,453 Avg Close $20.15 Range $19.08 - $21.13

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2015	539,106	$19,068	$22.74	$21.53 - $25.21
Q3 2015	539,106	$17,925	$20.96	$19.68 - $22.33
Q2 2015	539,106	$16,524	$20.96	$19.69 - $22.33
Q1 2015	538,920	$18,420	$22.48	$20.78 - $24.58
Q4 2014	538,920	$19,051	$21.73	$19.40 - $23.96
Q3 2014	538,920	$16,453	$20.15	$19.08 - $21.13