IDACORP, Inc.
US ˙ NYSE ˙ US4511071064

SecurityIDA / IDACORP, Inc.
InstitutionFirst Manhattan Co
Latest Disclosed Ownership39,073 shares
Latest Disclosed Value $ 5,586,267
First Manhattan Co reports 9.81% decrease in ownership of IDA / IDACORP, Inc.

On May 15, 2026 - First Manhattan Co filed a 13F-HR form disclosing ownership of 39,073 shares of IDACORP, Inc. (US:IDA) valued at $5,586,267 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 43,325 shares of IDACORP, Inc.. This represents a change in shares of -9.81% during the quarter. The current value of the position is $5,340,498 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F IDACORP COM 451107106 39,073 -4,252 -9.81 5,586 1.88 0.0155
2026-02-17 2025-12-31 13F IDACORP COM 451107106 43,325 75 0.17 5,483 -4.06 0.0144
2025-11-14 2025-09-30 13F IDACORP COM 451107106 43,250 -1,785 -3.96 5,715 9.92 0.0151
2025-08-14 2025-06-30 13F IDACORP COM 451107106 45,035 -935 -2.03 5,199 -2.68 0.0147
2025-05-15 2025-03-31 13F IDACORP COM 451107106 45,970 -2,630 -5.41 5,343 0.58 0.0156
2025-02-14 2024-12-31 13F IDACORP COM 451107106 48,600 -2,035 -4.02 5,311 1.76 0.0156
2024-11-14 2024-09-30 13F IDACORP COM 451107106 50,635 -625 -1.22 5,220 9.32 0.0155
2024-08-15 2024-06-30 13F/A-1 IDACORP COM 451107106 51,260 -1,300 -2.47 4,775 -2.21 0.0153
2024-08-14 2024-06-30 13F IDACORP COM 451107106 51,260 -1,300 4,775 0.0153
2024-05-15 2024-03-31 13F IDACORP COM 451107106 52,560 -1,990 -3.65 4,882 -8.97 0.0158
2024-02-13 2023-12-31 13F IDACORP COM 451107106 54,550 1,225 2.30 5,363 7.41 0.0186
2023-11-14 2023-09-30 13F IDACORP COM 451107106 53,325 4,217 8.59 4,994 -0.89 0.0184
2023-08-14 2023-06-30 13F IDACORP COM 451107106 49,108 -8,641 -14.96 5,038 -19.46 0.0185
2023-05-15 2023-03-31 13F IDACORP COM 451107106 57,749 -11,490 -16.59 6,256 -16.23 0.0240
2023-02-14 2022-12-31 13F IDACORP COM 451107106 69,239 -750 -1.07 7,467 7.76 0.0274
2022-11-14 2022-09-30 13F IDACORP COM 451107106 69,989 0 0.00 6,929 -6.53 0.0293
2022-08-15 2022-06-30 13F IDACORP COM 451107106 69,989 -8,154 -10.43 7,413 -17.76 0.0299
2022-05-16 2022-03-31 13F IDACORP COM 451107106 78,143 3,000 3.99 9,014 5.87 0.0295
2022-02-14 2021-12-31 13F IDACORP COM 451107106 75,143 12,100 19.19 8,514 30.64 0.0281
2021-11-15 2021-09-30 13F IDACORP COM 451107106 63,043 0 0.00 6,517 6.04 0.0240
2021-08-16 2021-06-30 13F IDACORP COM 451107106 63,043 -1,400 -2.17 6,146 -4.59 0.0224
2021-05-14 2021-03-31 13F IDACORP COM 451107106 64,443 -416 -0.64 6,442 3.44 0.0278
2021-02-16 2020-12-31 13F IDACORP COM 451107106 64,859 -700 -1.07 6,228 18.90 0.0298
2020-11-12 2020-09-30 13F IDACORP COMMON 451107106 65,559 2,068 3.26 5,238 -5.57 0.0270
2020-08-14 2020-06-30 13F IDACORP COMMON 451107106 63,491 -24,530 -27.87 5,547 -28.21 0.0321
2020-05-06 2020-03-31 13F IDACORP COMMON 451107106 88,021 -450 -0.51 7,727 -18.22 0.0501
2020-02-13 2019-12-31 13F IDACORP COMMON 451107106 88,471 -4,099 -4.43 9,448 -9.41 0.0474
2019-11-13 2019-09-30 13F IDACORP COMMON 451107106 92,570 -1,343 -1.43 10,429 10.58 0.0575
2019-08-16 2019-06-30 13F IDACORP COMMON 451107106 93,913 -1,000 -1.05 9,431 -0.17 0.0524
2019-04-12 2019-03-31 13F IDACORP COMMON 451107106 94,913 -1,400 -1.45 9,447 5.41 0.0545
2019-01-30 2018-12-31 13F IDACORP COMMON 451107106 96,313 -300 -0.31 8,962 -6.51 0.0558
2018-10-15 2018-09-30 13F IDACORP COMMON 451107106 96,613 -2,360 -2.38 9,586 5.01 0.0511
2018-08-01 2018-06-30 13F IDACORP COMMON 451107106 98,973 2,135 2.20 9,129 6.81 0.0526
2018-04-20 2018-03-31 13F IDACORP COMMON 451107106 96,838 -1,000 -1.02 8,547 -4.37 0.0486
2018-01-22 2017-12-31 13F IDACORP COMMON 451107106 97,838 2,030 2.12 8,938 6.10 0.0490
2017-10-25 2017-09-30 13F IDACORP COMMON 451107106 95,808 -1,000 -1.03 8,424 1.96 0.0482
2017-08-10 2017-06-30 13F/A-2 IDACORP COMMON 451107106 96,808 9,235 10.55 8,262 13.72 0.0482
2017-08-01 2017-06-30 13F/A-1 IDACORP COMMON 451107106 96,808 0 8,262 0.0482
2017-07-28 2017-06-30 13F IDACORP COMMON 451107106 96,808 9,235 8,262
2017-04-25 2017-03-31 13F/A-1 IDACORP COMMON 451107106 87,573 -840 -0.95 7,265 2.02 0.0432
2017-04-24 2017-03-31 13F IDACORP COMMON 451107106 90,731 7,102
2017-01-25 2016-12-31 13F IDACORP COMMON 451107106 88,413 -2,318 -2.55 7,121 0.27 0.0433
2016-10-20 2016-09-30 13F IDACORP COMMON 451107106 90,731 -2,509 -2.69 7,102 -6.37 0.0433
2016-07-14 2016-06-30 13F IDACORP COMMON 451107106 93,240 100 0.11 7,585 9.18 0.0466
2016-04-22 2016-03-31 13F IDACORP COMMON 451107106 93,140 -280 -0.30 6,947 9.37 0.0427
2016-01-20 2015-12-31 13F IDACORP COMMON 451107106 93,420 -3,250 -3.36 6,352 1.55 0.0390
2015-10-26 2015-09-30 13F IDACORP COMMON 451107106 96,670 6,000 6.62 6,255 22.89 0.0402
2015-07-17 2015-06-30 13F IDACORP COMMON 451107106 90,670 -400 -0.44 5,090 -11.09 0.0301
2015-04-30 2015-03-31 13F IDACORP COMMON 451107106 91,070 -200 -0.22 5,725 -5.23 0.0330
2015-01-20 2014-12-31 13F IDACORP COMMON 451107106 91,270 -2,135 -2.29 6,041 20.65 0.0342
2014-10-23 2014-09-30 13F IDACORP COMMON 451107106 93,405 -1,400 -1.48 5,007 -8.66 0.0291
2014-08-14 2014-06-30 13F/A-1 IDACORP COMMON 451107106 94,805 -200 -0.21 5,482 4.04 0.0347
2014-05-16 2014-03-31 13F IDACORP COMMON 451107106 95,005 0 0.00 5,269 6.98 0.0347
2014-02-04 2013-12-31 13F IDACORP COMMON 451107106 95,005 -500 -0.52 4,925 6.56 0.0326
2013-10-29 2013-09-30 13F IDACORP COMMON 451107106 95,505 -300 -0.31 4,622 -8.40 0.0323
2013-08-13 2013-06-30 13F IDACORP COMMON 451107106 95,805 95,805 5,046 0.0347
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.