During the nine months ended September 30, 2026, IDACORP issued an aggregate of 2,996,285 shares of common stock using original issuances of shares. IDACORP granted 71,855 restricted stock unit awards and issued 55,032 shares of common stock to employees pursuant to the IDACORP, Inc. 2000 Long-Term Incentive and Compensation Plan, and issued an additional 31,837 shares of common stock pursuant to director equity compensation plans. IDACORP issued 31,323 shares of common

At-the-Market Offering Programs (2024 & 2026 ATM Series): On May 15, 2026, IDACORP entered into an Equity Distribution Agreement pursuant to which it may issue, offer, and sell, from time to time, up to an aggregate gross sales price of $600 million of shares of its common stock through the 2026 ATM, which includes the ability to enter into FSAs. At September 30, 2026, IDACORP had $66.5 million of remaining capacity under its 2026 ATM. Before the 2026 ATM became effective, IDACORP had available the 2024 ATM providing for the sale of up to an aggregate gross sales price of $300 million of shares of its common stock. Upon effectiveness of the 2026 ATM, the 2024 ATM terminated with respect to new issuances.

During the nine months ended September 30, 2026, IDACORP executed FSAs under its 2024 ATM and 2026 ATM with various counterparties who borrowed and sold 4,926,437 shares of IDACORP’s common stock at an aggregate gross sales price of $689.0 million, including approximately $7.0 million in commissions and fees payable by IDACORP to the counterparties upon settlement.


Maturity Date	ATM Series	Shares	Net Proceeds Available		Forward Price
March 31, 2027	2024	530,000	$	74,183	$	139.97
March 31, 2027	2024	245,830	34,802		141.57
March 31, 2027	2024	325,561	45,072		138.44
May 28, 2027	2026	534,111	74,567		139.61
May 28, 2027	2026	530,000	74,030		139.68
December 3, 2027	2026	830,000	112,556		135.61
February 29, 2028	2026	141,446	19,865		140.45
February 29, 2028	2026	889,489	124,222		139.66
February 29, 2028	2026	900,000	125,176		139.08
Total / Weighted Average Forward Price		4,926,437	$	684,473	$	138.94

The FSAs will be physically settled with common shares issued by IDACORP, unless IDACORP elects to settle the agreements in net cash or net shares, subject to certain conditions. On a settlement date or dates, if IDACORP elects to physically settle the FSAs, IDACORP will issue shares of common stock to the various counterparties at the then-applicable forward sale price and receive issuance proceeds at that time.

At September 30, 2026, IDACORP could have settled all its outstanding FSAs under the ATMs with physical delivery of 4,926,437 shares of common stock to the counterparties in exchange for cash of $684.5 million. At September 30, 2026, IDACORP could have settled the FSAs with net receipt from various counterparties of approximately $3.3 million of cash or approximately 26,319 shares of common stock, if IDACORP had elected to net cash or net share settle, respectively. The FSAs have been classified as an equity transaction because they are indexed to IDACORP’s common stock and the other requirements necessary for equity classification are met. As a result of the equity classification, no gain or loss will be recognized within earnings due to subsequent changes in the fair value of the FSAs.

$500.0 million. In conjunction with this offering, underwriters exercised an option to purchase 675,675 additional shares for an additional aggregate amount of $75.0 million. The 5,180,180 shares were sold by IDACORP to the underwriters under FSAs, which provide for settlement on a settlement date or dates to be specified at IDACORP’s discretion, but which is expected to occur on or prior to November 9, 2026. The forward sale price was initially $107.67 per share and is subject to certain adjustments in accordance with the terms of the FSAs through the date or dates of settlement.


Settlement Date	Settlement Shares	Net Cash Proceeds(1)		Forward Settlement Price
May 28, 2026	695,884	$	75,000	$	107.78
July 13, 2026	1,726,727	186,775		108.17
October 15, 2026	1,030,843	$	111,443	$	108.11
Total / Weighted Average Forward Settlement Price	3,453,454	$	373,218	$	108.07

At September 30, 2026, IDACORP could have settled the remaining outstanding FSAs with physical delivery of 2,757,569 shares of common stock to the counterparties in exchange for cash of $297.7 million. The FSAs could have also been settled at September 30, 2026, with delivery of approximately $89.2 million of cash or approximately 634,702 shares of common stock to the counterparties, if IDACORP had elected to net cash or net share settle, respectively. The FSAs have been classified as an equity transaction because they are indexed to IDACORP’s common stock and the other requirements necessary for equity classification are met. As a result of the equity classification, no gain or loss will be recognized within earnings due to subsequent changes in the fair value of the FSAs.

FSA Earnings Per Share Dilution: Prior to settlement, the potentially issuable shares pursuant to the FSAs will be reflected in IDACORP’s diluted earnings per share calculations using the treasury stock method. Under this method, the number of shares of IDACORP’s common stock used in calculating diluted earnings per share for a reporting period would be increased by the number of shares, if any, that would be issued upon physical settlement of the FSAs, less the number of shares that could be purchased by IDACORP in the market with the proceeds received from issuance (based on the average market price during that reporting period). Share dilution occurs when the average market price of IDACORP’s stock during the reporting period is higher than the then-applicable forward sale price as of the end of the reporting period. For the three months and nine months ended September 30, 2026, approximately 758,000 and 1,074,000 incremental shares, respectively, were included in the calculation of diluted earnings per share related to the securities under the FSAs. For the three months and nine months ended September 30, 2025, approximately 744,000 and 311,000 incremental shares, respectively, were included in the calculation of diluted earnings per share related to the securities under the FSAs. See Note 7 - "Earnings Per Share" for additional information on IDACORP's diluted earnings per share.

Idaho Power’s ability to pay dividends on its common stock held by IDACORP, and IDACORP’s ability to pay dividends on its common stock, are limited to the extent payment of such dividends would violate the covenants in their respective credit facilities or Idaho Power’s Statement of Policy and Code of Conduct. A covenant under IDACORP’s credit facility and Idaho Power’s credit facility requires IDACORP and Idaho Power to maintain leverage ratios of consolidated indebtedness to consolidated total capitalization, as defined therein, of no more than 65 percent at the end of each fiscal quarter. At September 30, 2026, the leverage ratios for IDACORP and Idaho Power, as defined in the credit facilities, were each 51

percent. Based on these restrictions, IDACORP’s and Idaho Power’s potential dividends were limited to $1.8 billion and $1.7 billion, respectively, at September 30, 2026. There are additional facility covenants, subject to exceptions, that prohibit or restrict the sale or disposition of property without consent and any agreements restricting dividend payments to IDACORP and Idaho Power from any material subsidiary. At September 30, 2026, IDACORP and Idaho Power were in compliance with those covenants.

Idaho Power’s Statement of Policy and Code of Conduct relating to transactions between and among Idaho Power, IDACORP, and other affiliates, which was approved by the IPUC in April 2008, provides that Idaho Power will not pay any dividends to IDACORP that will reduce Idaho Power’s common equity capital below 35 percent of its total adjusted capital without IPUC approval. At September 30, 2026, Idaho Power's common equity capital was 49 percent of its total adjusted capital. Further, Idaho Power must obtain approval from the OPUC before it can directly or indirectly loan funds or issue notes or give credit on its books to IDACORP.

In addition to contractual restrictions on the amount and payment of dividends, the Federal Power Act prohibits the payment of dividends from "capital accounts." The term "capital account" is undefined in the Federal Power Act or its regulations, but Idaho Power does not believe the restriction would limit Idaho Power's ability to pay dividends out of current year earnings or retained earnings.