X0508 4 2026-02-20 0001057877 IDACORP INC IDA 0001969668 Hilton Julia A 1221 W IDAHO STREET BOISE ID 83702 0 1 0 0 VP and General Counsel 0 Common Stock 2026-02-20 4 A 0 629 A 3627.640 D Common Stock 2026-02-20 4 F 0 315 139.89 D 3312.640 D Common Stock 2026-02-23 4 S 0 1000 142.789 D 2312.640 D Restricted Stock Units 2026-02-20 4 A 0 566 0.00 A Common Stock 566 566 D These shares were received for no consideration upon the satisfaction of performance criteria underlying an award of performance-based units for the 2023-2025 performance period. Includes 334.640 shares in the reporting person's dividend reinvestment plan to date. This transaction was executed in multiple trades at prices ranging from $142.72 to $142.98. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC, the issuer or security holder of the issuer, full information regarding the number of shares and prices at which the transaction was effected. Each restricted stock unit represents a contingent right to receive one share of IDA common stock. The restricted stock units vest on January 1, 2029. /s/ Cheryl W. Thompson, Attorney-in-Fact 2026-02-24