X0304 4 2012-02-17 0 0000104918 AVISTA CORP AVA 0001174958 MEYER DAVID J 1411 E MISSION AVE SPOKANE WA 99202 0 1 0 0 Vice President Common Stock 2012-02-17 4 M 0 6000 10.17 A 14425 D Common Stock 2012-02-17 4 S 0 6000 25.6 D 8425 D Common Stock held in 401(k) Investment Plan 3635 I by Trustee Common Stock held in Executive Deferral Account 7588 I by Trustee Common Stock held in IRA at DA Davidson 1142 I held by Trustee Exercise of Stock Option 10.17 2012-02-17 4 M 0 6000 25.6 D 2012-11-07 Common Stock 6000 20250 D Exercise of Sale of Option Grant expiring 11/07/2012. Options vest in four (4) equal installments beginning the first anniversary date of the grant. Mr. Meyer acquired the option grant of 26,250 11/07/2002. Total refelcts that number of derivative securities remaining for this particular grant. The price per share represents the average price for four individual blocks sold on 2/17/2012 ($25.61 per share for 1600 shares, $25.62 per share for 1400 shares, $25.58 per share for 2300 shares and 25.60 per share for 700 shares) /s/ David J Meyer 2012-02-21