IDACORP INC IDA
COM · Common Stock · CUSIP 451107106 · ISIN US4511071064
Electricity generating company
- SectorUtilities
- IndustryElectric Services
- HeadquartersBoise, ID
- Founded1998
- Websiteidacorpinc.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($70.9m this quarter). Holder counts are more reliable. Shares outstanding: 54.0m as of 2025-10-24, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $132.13. Options: 3 managers hold calls ($1.9m notional), 4 hold puts ($10.9m).
Trends to Q3 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 377 |
| Q4 2022 | 395 |
| Q1 2023 | 386 |
| Q2 2023 | 393 |
| Q3 2023 | 389 |
| Q4 2023 | 405 |
| Q1 2024 | 403 |
| Q2 2024 | 398 |
| Q3 2024 | 435 |
| Q4 2024 | 450 |
| Q1 2025 | 455 |
| Q2 2025 | 478 |
| Q3 2025 | 488 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2023 | 178 | 171 |
| Q1 2024 | 168 | 199 |
| Q2 2024 | 189 | 173 |
| Q3 2024 | 220 | 170 |
| Q4 2024 | 214 | 177 |
| Q1 2025 | 224 | 193 |
| Q2 2025 | 255 | 174 |
| Q3 2025 | 249 | 191 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q4 2024 | $2.0m | $10.5m | 5.21 |
| Q1 2025 | $2.2m | $7.4m | 3.41 |
| Q2 2025 | $311.7k | $15.4m | 49.37 |
| Q3 2025 | $1.9m | $10.9m | 5.84 |
Biggest buyers
| MORGAN STANLEY | Added | +539.7k |
| Zimmer Partners, LP | New | +537.5k |
| Invesco Ltd. | Added | +344.6k |
| JPMORGAN CHASE & CO | Added | +290.4k |
| ANCHOR CAPITAL ADVISORS LLC | Added | +254.4k |
| LORD, ABBETT & CO. LLC | Added | +194.2k |
| DEROY & DEVEREAUX PRIVATE INVESTMENT COUNSEL INC | New | +162.6k |
| REAVES W H & CO INC | Added | +133.8k |
| BARCLAYS PLC | Added | +99.3k |
| Squarepoint Ops LLC | Added | +97.3k |
Biggest sellers
| MILLENNIUM MANAGEMENT LLC | Reduced | -457.6k |
| CITADEL ADVISORS LLC | Reduced | -305.5k |
| ROYAL LONDON ASSET MANAGEMENT LTD | Sold out | -227.6k |
| FRANKLIN RESOURCES INC | Reduced | -165.7k |
| Balyasny Asset Management L.P. | Reduced | -116.6k |
| Ghisallo Capital Management LLC | Sold out | -100.0k |
| Verition Fund Management LLC | Reduced | -86.5k |
| DEPRINCE RACE & ZOLLO INC | Reduced | -83.8k |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -78.7k |
| TWO SIGMA INVESTMENTS, LP | Reduced | -71.2k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $1.2m9.1k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $462.5k3.5k shares |
| WOLVERINE TRADING, LLC | New | $209.1k1.6k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $4.4m33.3k shares |
| CITADEL ADVISORS LLC | Reduced | $3.2m24.2k shares |
| SIMPLEX TRADING, LLC | Added | $2.2m16.6k shares |
| JANE STREET GROUP, LLC | Added | $1.1m8.7k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.9% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 5.2% |
Fell to 5% or below in the last year: WELLINGTON MANAGEMENT GROUP LLP (4.4%, 2026-08-13), VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales in Q3 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 0 | — | 0 | — | — |
| Q2 2024 | 0 | — | 1 | $142.6k | — |
| Q3 2024 | 0 | — | 0 | — | — |
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 2 | $402.3k | — |
| Q2 2025 | 0 | — | 1 | $556.5k | — |
| Q3 2025 | 0 | — | 0 | — | — |
None reported in Q3 2025.
Holders, Q3 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.02% of their portfolio | 6.5m $858.8m | Reduced -10.3k |
| VANGUARD GROUP INC 0.01% of their portfolio | 6.0m $797.5m | Reduced -23.8k |
| WELLINGTON MANAGEMENT GROUP LLP 0.08% of their portfolio | 3.3m $439.2m | Reduced -78.7k |
| MORGAN STANLEY 0.02% of their portfolio | 1.9m $253.1m | Added +539.7k |
| T. Rowe Price Investment Management, Inc. 0.15% of their portfolio | 1.9m $251.3m | Added +22.4k |
| STATE STREET CORP 0.01% of their portfolio | 1.9m $248.0m | Added +3.3k |
| REAVES W H & CO INC 4.00% of their portfolio | 1.7m $224.7m | Added +133.8k |
| JENNISON ASSOCIATES LLC 0.11% of their portfolio | 1.4m $181.1m | Added +46.4k |
| ALLIANCEBERNSTEIN L.P. 0.06% of their portfolio | 1.4m $180.6m | Reduced -38.1k |
| NEUBERGER BERMAN GROUP LLC 0.12% of their portfolio | 1.2m $163.6m | Added +16.2k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 1.0m $138.5m | Added +26.8k |
| VICTORY CAPITAL MANAGEMENT INC 0.07% of their portfolio | 844.5k $111.6m | Reduced -54.4k |
| FMR LLC 0.01% of their portfolio | 841.5k $111.2m | Added +30.0k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 743.5k $98.3m | Added +13.0k |
| FIRST TRUST ADVISORS LP 0.07% of their portfolio | 743.0k $98.2m | Reduced -12.1k |
| LORD, ABBETT & CO. LLC 0.28% of their portfolio | 723.2k $95.6m | Added +194.2k |
| GW&K Investment Management, LLC 0.78% of their portfolio | 669.7k $88.5m | Reduced -26.4k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 666.3k $88.1m | Reduced -5.6k |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.21% of their portfolio | 623.1k $82.3m | Reduced -14.1k |
| Pictet Asset Management Holding SA 0.08% of their portfolio | 613.1k $81.0m | Added +81.3k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 608.5k $80.4m | Added +290.4k |
| Invesco Ltd. 0.01% of their portfolio | 591.8k $78.2m | Added +344.6k |
| Boston Trust Walden Corp 0.53% of their portfolio | 551.4k $72.9m | Reduced -15.4k |
| Zimmer Partners, LP 1.74% of their portfolio | 537.5k $71.0m | New |
| Bank of New York Mellon Corp 0.01% of their portfolio | 499.9k $66.1m | Reduced -2.5k |
| PRINCIPAL FINANCIAL GROUP INC 0.03% of their portfolio | 486.6k $64.3m | Reduced -17.9k |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 484.6k $64.0m | Reduced -34.8k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 467.3k $61.8m | Added +2.4k |
| PALISADE CAPITAL MANAGEMENT, LP 1.64% of their portfolio | 455.5k $60.2m | Reduced -7.4k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 435.3k $57.5m | Added +80.1k |
| ANCHOR CAPITAL ADVISORS LLC 1.62% of their portfolio | 423.4k $56.0m | Added +254.4k |
| SOROS FUND MANAGEMENT LLC 0.84% of their portfolio | 403.9k $53.4m | Reduced -2.5k |
| Capital International Investors 0.01% of their portfolio | 377.3k $49.9m | Unchanged |
| Energy Income Partners, LLC 0.93% of their portfolio | 363.1k $48.0m | Reduced -14.5k |
| SCHRODER INVESTMENT MANAGEMENT GROUP 0.03% of their portfolio | 340.5k $44.5m | Reduced -50.2k |
| RAYMOND JAMES FINANCIAL INC 0.01% of their portfolio | 335.7k $44.4m | Added +11.1k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 333.2k $44.0m | Reduced -53.8k |
| TWO SIGMA INVESTMENTS, LP 0.07% of their portfolio | 329.0k $43.5m | Reduced -71.2k |
| WESTWOOD HOLDINGS GROUP INC 0.29% of their portfolio | 310.1k $41.0m | Reduced -11.5k |
| UBS Group AG 0.01% of their portfolio | 295.5k $39.1m | Added +44.4k |
| Legal & General Group Plc 0.01% of their portfolio | 289.8k $38.3m | Reduced -7.6k |
| FRANKLIN RESOURCES INC 0.01% of their portfolio | 289.6k $38.3m | Reduced -165.7k |
| MAIRS & POWER INC 0.36% of their portfolio | 287.2k $37.9m | Added +42.7k |
| Brookfield Corp /ON/ 0.04% of their portfolio | 284.9k $37.7m | Reduced -8.9k |
| SEI INVESTMENTS CO 0.03% of their portfolio | 229.3k $30.3m | Added +1.9k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.05% of their portfolio | 227.5k $30.1m | Reduced -30.0k |
| Squarepoint Ops LLC 0.06% of their portfolio | 219.9k $29.1m | Added +97.3k |
| WELLS FARGO & COMPANY/MN 0.01% of their portfolio | 218.7k $28.9m | Added +42.3k |
| Nuveen, LLC 0.01% of their portfolio | 217.4k $28.7m | Added +49.6k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.07% of their portfolio | 214.1k $28.3m | Reduced -17.3k |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 211.4k $27.9m | Added +25.6k |
| DEPRINCE RACE & ZOLLO INC 0.56% of their portfolio | 211.1k $27.9m | Reduced -83.8k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.03% of their portfolio | 181.6k $24.0m | Added +1.1k |
| TWO SIGMA ADVISERS, LP 0.05% of their portfolio | 179.5k $23.7m | Reduced -50.5k |
| Tributary Capital Management, LLC 2.09% of their portfolio | 174.7k $23.1m | Reduced -8.7k |
| California Public Employees Retirement System 0.01% of their portfolio | 172.1k $22.7m | Reduced -35.7k |
| RHUMBLINE ADVISERS 0.02% of their portfolio | 172.0k $22.7m | Added +14.1k |
| Leeward Investments, LLC - MA 1.14% of their portfolio | 168.3k $22.2m | Reduced -3.8k |
| DEROY & DEVEREAUX PRIVATE INVESTMENT COUNSEL INC 1.07% of their portfolio | 162.6k $21.5m | New |
| Beck Bode, LLC 3.40% of their portfolio | 159.4k $21.1m | Added +2.9k |
| Retirement Systems of Alabama 0.06% of their portfolio | 146.4k $19.4m | Reduced -698 |
| Ceredex Value Advisors LLC 0.45% of their portfolio | 146.3k $19.3m | Reduced -23.6k |
| STRS OHIO 0.07% of their portfolio | 137.9k $18.2m | Reduced -5.9k |
| Freestone Grove Partners LP 0.14% of their portfolio | 137.4k $18.2m | Added +21.9k |
| Yaupon Capital Management LP 0.91% of their portfolio | 133.9k $17.7m | Reduced -28.0k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 133.2k $17.6m | Reduced -67.5k |
| Aberdeen Group plc 0.03% of their portfolio | 130.5k $17.1m | Added +14.5k |
| BARCLAYS PLC 0.01% of their portfolio | 128.7k $17.0m | Added +99.3k |
| RENAISSANCE TECHNOLOGIES LLC 0.02% of their portfolio | 128.2k $16.9m | Added +24.7k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.06% of their portfolio | 126.8k $16.8m | Reduced -1.8k |
| LVM CAPITAL MANAGEMENT LTD/MI 1.60% of their portfolio | 126.1k $16.7m | Added +800 |
| KENNEDY CAPITAL MANAGEMENT LLC 0.35% of their portfolio | 118.3k $15.6m | Reduced -5.7k |
| DEUTSCHE BANK AG\ 0.01% of their portfolio | 117.4k $15.5m | Added +277 |
| Swiss National Bank 0.01% of their portfolio | 104.7k $13.8m | Added +1.5k |
| COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 0.07% of their portfolio | 102.6k $13.6m | Reduced -16.5k |
| NISA INVESTMENT ADVISORS, LLC 0.05% of their portfolio | 100.8k $13.3m | Added +989 |
| Burkehill Global Management, LP 0.75% of their portfolio | 100.0k $13.2m | Unchanged |
| Verition Fund Management LLC 0.07% of their portfolio | 94.3k $12.5m | Reduced -86.5k |
| First Eagle Investment Management, LLC 0.02% of their portfolio | 91.3k $12.1m | Reduced -641 |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 91.3k $12.1m | Added +25.4k |
| Cubist Systematic Strategies, LLC 0.17% of their portfolio | 89.7k $11.9m | Reduced -12.2k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 85.4k $11.3m | Reduced -37.9k |
| Schonfeld Strategic Advisors LLC 0.08% of their portfolio | 82.2k $10.9m | Added +75.1k |
| AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 82.0k $10.8m | Added +22.2k |
| Clark Capital Management Group, Inc. 0.07% of their portfolio | 80.6k $10.7m | Reduced -15.0k |
| Gotham Asset Management, LLC 0.05% of their portfolio | 80.4k $10.6m | Added +53.2k |
| Connor, Clark & Lunn Investment Management Ltd. 0.03% of their portfolio | 76.6k $10.1m | Added +23.5k |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.02% of their portfolio | 75.1k $9.9m | Added +7.2k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.02% of their portfolio | 73.3k $9.7m | Reduced -4.3k |
| CITIGROUP INC 0.01% of their portfolio | 72.9k $9.6m | Added +37.0k |
| NATIXIS ADVISORS, LLC 0.01% of their portfolio | 71.3k $9.4m | Added +6.9k |
| DARK FOREST CAPITAL MANAGEMENT LP 0.35% of their portfolio | 71.3k $9.4m | Added +68.6k |
| Trexquant Investment LP 0.09% of their portfolio | 67.4k $8.9m | Added +44.6k |
| Jump Financial, LLC 0.10% of their portfolio | 61.7k $8.2m | Added +2.5k |
| HRT FINANCIAL LP 0.04% of their portfolio | 60.7k $8.0m | Added +14.1k |
| River Road Asset Management, LLC 0.08% of their portfolio | 56.8k $7.5m | Reduced -97 |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 52.7k $7.0m | Added +7.2k |
| MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio | 52.5k $6.9m | Reduced -457.6k |
| Quantinno Capital Management LP 0.02% of their portfolio | 51.3k $6.8m | Added +19.0k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 51.3k $6.8m | Added +3 |