X0306 4 2020-11-09 0 0000764622 PINNACLE WEST CAPITAL CORP PNW 0001628362 Smith Robert Edgar 400 NORTH FIFTH STREET MAIL STATION 8602 PHOENIX AZ 85004 0 1 0 0 SVP and General Counsel Common Stock 2020-11-09 4 A 0 834 0.00 A 2118 D Common Stock 2020-11-09 4 F 0 371 87.94 D 1747 D Common Stock 2020-11-09 4 A 0 61 0.00 A 1808 D Common Stock 2020-11-09 4 F 0 28 87.94 D 1780 D Shares acquired upon the vesting of a portion of the performance shares granted in 2017 that were tied to the operational performance metric. Shares retained by the Company for the purpose of meeting tax withholding requirements. The recipient retained all other shares. Represents shares of common stock received by the individual in settlement of dividend rights that vested in connection with the performance shares that vested on November 9, 2020. /s/ Diane Wood, Attorney-in-Fact 2020-11-12