X0303 4 2010-05-17 0 0000104918 AVISTA CORP AVA 0001174965 EIGUREN ROY LEWIS 1411 E MISSION AVE SPOKANE WA 99202 1 0 0 0 Common Stock 2010-05-17 4 A 0 477 20.96 A 10753 D Shares issued under the Long Term Incentive Plan (LTIP) as an award of stock for director compensation. The price per share (per LTIP) is the closing price on Friday, May 15, 2010. Shares issued as part of Mr. Dunham's directors retainer. /s/ Roy Lewis Eiguren 2010-05-17