AVISTA CORP

Ticker: AVA CUSIP: 05379B107 Class: Common Stock

BRITISH COLUMBIA INVESTMENT MANAGEMENT Corp's Holding History (CIK: 0001228242)

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

Q4 2014
Shares 11,545 Value ($000) $408 Avg Close $21.73 Range $19.40 - $23.96
Q3 2014
Shares 11,545 Value ($000) $352 Avg Close $20.15 Range $19.08 - $21.13
Q2 2014
Shares 11,545 Value ($000) $387 Avg Close $19.80 Range $18.69 - $21.12
Q1 2014
Shares 10,573 Value ($000) $324 Avg Close $18.00 Range $17.07 - $19.19
Q4 2013
Shares 10,573 Value ($000) $298 Avg Close $16.79 Range $15.77 - $17.52
Q3 2013
Shares 10,573 Value ($000) $279 Avg Close $16.58 Range $15.56 - $17.59
Q2 2013
Shares 9,974 Value ($000) $269 Avg Close $16.44 Range $15.47 - $17.44
Q1 2013
Shares 9,974 Value ($000) $273 Avg Close $15.28 Range $14.20 - $16.38
Q4 2012
Shares 8,979 Value ($000) $216 Avg Close — Range —
Q3 2012
Shares 8,979 Value ($000) $231 Avg Close — Range —
Q2 2012
Shares 8,979 Value ($000) $240 Avg Close — Range —
Q1 2012
Shares 8,979 Value ($000) $230 Avg Close — Range —
Q4 2011
Shares 8,064 Value ($000) $208 Avg Close — Range —