X0306 4 2016-08-11 0001057877 IDACORP INC IDA 0001202061 KEEN J LAMONT 1221 WEST IDAHO BOISE ID 83702 1 0 0 0 Common Stock 2016-08-11 4 S 0 2715 78.533 D 52554.941 D Common Stock 2016-08-11 4 S 0 1285 78.553 D 51269.941 D Common Stock 291.455 I By Spouse The sales reported on this Form 4 were effected pursuant to Rule 10b5-1 trading plans adopted by the reporting person in August 2015. This transaction was executed in multiple trades at prices ranging from $78.39 to $78.63. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. This transaction was executed in multiple trades at prices ranging from $78.39 to $78.66. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. Includes 530.941 reinvestment shares to date. /s/Patrick A. Harrington, Attorney-in-Fact 2016-08-15