LNTNasdaqElectric & Other Services CombinedFiscal year ends December 31
ALLIANT ENERGY CORP
Financials through Q1 FY2026, quarter ended Mar 31, 2026Last filing: 10-Q on Jul 31, 2026
$66.85−1.47 (-2.15%)
Close on Oct 19, 2026
- Market cap
- $17.30B
- P/E (TTM)
- 21.0
- Dividend yield
- 3.04%
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
97.7%
253M of 259M shares
Institutional holders
879
95 new, 65 sold out
Net institutional buying
26M
In Q2 2026
Insider trades, 12 months
0 buys · 1 sales
Net sold $7
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| BlackRock, Inc. | 23,143,382 | 9.10% | 13G (passive) amendment | Dec 31, 2023 |
| Vanguard Capital Management | 19,403,442 | 7.54% | 13G (passive) | Mar 31, 2026 |
| State Street Corporation | 16,243,234 | 6.30% | 13G (passive) amendment | Sep 30, 2024 |
| Vanguard Portfolio Management | 14,626,154 | 5.68% | 13G (passive) | Mar 31, 2026 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of LNT | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 24,986,672 | 9.64% | $1.91B | +487,232 | 0.03% |
| State Street Corp | 17,571,998 | 6.78% | $1.34B | +561,347 | 0.04% |
| Vanguard Capital Management LLC | 16,861,714 | 6.50% | $1.29B | +162,252 | 0.03% |
| Vanguard Portfolio Management LLC | 14,386,177 | 5.55% | $1.10B | −208,829 | 0.05% |
| Price T Rowe Associates Inc /Md/ | 11,515,298 | 4.44% | $878.50K | +904,652 | 0.09% |
| Jupiter Topco LLC | 10,977,426 | 4.23% | $837.47M | New | 0.34% |
| Nuveen, LLC | 7,890,946 | 3.04% | $602.00M | +450,560 | 0.14% |
| Geode Capital Management, LLC | 7,407,445 | 2.86% | $563.05M | +149,419 | 0.03% |
| Massachusetts Financial Services Co /Ma/ | 6,936,512 | 2.68% | $533.76M | −110,725 | 0.17% |
| Victory Capital Management Inc | 6,442,409 | 2.48% | $491.49M | −796,455 | 0.28% |
| Bank Of America Corp /De/ | 5,582,621 | 2.15% | $425.90M | +237,754 | 0.03% |
| FMR LLC | 5,043,741 | 1.95% | $384.79M | +2,181,315 | 0.02% |
| Invesco Ltd. | 4,912,484 | 1.89% | $374.77M | −75,964 | 0.03% |
| Franklin Resources Inc | 3,880,958 | 1.50% | $296.08M | −15,548 | 0.06% |
| Morgan Stanley | 3,392,292 | 1.31% | $258.80M | +41,117 | 0.01% |
| Deutsche Bank AG\ | 3,383,604 | 1.30% | $258.14M | +2,109,717 | 0.07% |
| Pictet Asset Management Holding SA | 3,335,106 | 1.29% | $254.44M | −76,944 | 0.24% |
| JPMorgan Chase & Co | 3,131,630 | 1.21% | $241.70M | +881,253 | 0.01% |
| Cohen & Steers, Inc. | 3,016,592 | 1.16% | $230.14K | −259,668 | 0.36% |
| Goldman Sachs Group Inc | 2,917,632 | 1.13% | $222.59M | +1,379,387 | 0.02% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 879 | 253M | 97.7% | 95 / 365 | 253 / 65 | 33M | 8M |
| Q1 2026 | 858 | 239M | 92.2% | 106 / 309 | 269 / 66 | 50M | 8M |
| Q4 2025 | 835 | 232M | 89.4% | 111 / 310 | 243 / 58 | 23M | 16M |
| Q3 2025 | 791 | 225M | 86.6% | 88 / 283 | 239 / 61 | 20M | 9M |
| Q2 2025 | 775 | 214M | 82.5% | 98 / 305 | 221 / 93 | 15M | 10M |
| Q1 2025 | 776 | 209M | 80.6% | 122 / 285 | 233 / 52 | 18M | 14M |
| Q4 2024 | 718 | 214M | 82.4% | 109 / 261 | 215 / 57 | 17M | 12M |
| Q3 2024 | 680 | 208M | 80.3% | 91 / 256 | 211 / 61 | 34M | 7M |
| Q2 2024 | 657 | 205M | 79.2% | 76 / 245 | 221 / 46 | 10M | 15M |
| Q1 2024 | 630 | 211M | 81.4% | 67 / 235 | 233 / 83 | 20M | 17M |
| Q4 2023 | 652 | 207M | 80.0% | 96 / 225 | 233 / 46 | 18M | 11M |
| Q3 2023 | 614 | 201M | 77.4% | 52 / 227 | 225 / 64 | 16M | 7M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of LNT | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 8,197,420 | 3.16% | $625.38M | 0.03% | Jun 30, 2026 |
| Janus Henderson Enterprise Fund | 6,915,472 | 2.67% | $527.58M | 2.36% | Jun 30, 2026 |
| Vanguard 500 Index Fund | 6,690,044 | 2.58% | $510.38M | 0.03% | Jun 30, 2026 |
| Victory Sycamore Established Value Fund | 4,250,000 | 1.64% | $324.23M | 2.10% | Jun 30, 2026 |
| State Street(R) Utilities Select Sector SPDR(R) ETF | 4,202,674 | 1.62% | $320.62M | 1.39% | Jun 30, 2026 |
| iShares Core S&P 500 ETF | 3,550,665 | 1.37% | $270.88M | 0.03% | Jun 30, 2026 |
| Franklin Utilities Fund | 3,500,000 | 1.35% | $267.02M | 3.49% | Jun 30, 2026 |
| Fidelity 500 Index Fund | 3,289,539 | 1.27% | $235.56M | 0.03% | May 31, 2026 |
| iShares Select Dividend ETF | 3,256,660 | 1.26% | $230.51M | 0.98% | Jul 31, 2026 |
| Vanguard Small-Cap Index Fund | 2,959,836 | 1.14% | $225.81M | 0.12% | Jun 30, 2026 |
| Vanguard Mid-Cap Index Fund | 2,798,362 | 1.08% | $213.49M | 0.10% | Jun 30, 2026 |
| State Street(R) SPDR(R) S&P(R) Dividend ETF | 2,666,355 | 1.03% | $203.42M | 0.95% | Jun 30, 2026 |
| College Retirement Equities Fund - Total Global Stock Account | 2,653,835 | 1.02% | $202.46M | 0.14% | Jun 30, 2026 |
| Invesco S&P 500 Equal Weight ETF | 2,553,032 | 0.98% | $180.70M | 0.19% | Jul 31, 2026 |
| MFS Mid Cap Value Fund | 2,253,428 | 0.87% | $171.91M | 0.99% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Lisa M. Barton | President and CEO, Director | 106,519 | 0.04% | Feb 23, 2026 |
| Robert J. Durian | EVP and CFO | 163,796 | 0.06% | Aug 12, 2026 |
| Antonio P. Smyth | Executive Vice President | 20,678 | 0.01% | Apr 16, 2026 |
| Rebecca C. Valcq | Vice President | 2,335 | 0.00% | Mar 19, 2026 |
| Raja Sundararajan | Executive Vice President | 44,374 | 0.02% | Feb 23, 2026 |
| Leon David A. de | Senior Vice President | 49,987 | 0.02% | Feb 23, 2026 |
| Mayuri Farlinger | Vice President | 20,170 | 0.01% | Feb 23, 2026 |
| Dylan Syse | CAO and Controller | 3,776 | 0.00% | Feb 23, 2026 |
| Benjamin M. Bilitz | CAO and Controller | 19,420 | 0.01% | Feb 24, 2025 |
| Patrick E. Allen | Director | 1,632 | 0.00% | Jul 14, 2026 |
| Nancy Joy Falotico | Director | 1,210 | 0.00% | Jul 14, 2026 |
| Manu Asthana | Director | 1,000 | 0.00% | Jul 14, 2026 |
| Stephanie Cox | Director | 500 | 0.00% | Jul 14, 2026 |
| Ignacio A. Cortina | Director | 100 | 0.00% | Jul 14, 2026 |
| Roger K. Newport | Director | 1,000 | 0.00% | Jul 14, 2026 |
| Michael Dennis Garcia | Director | 10 | 0.00% | Jul 14, 2026 |
| Christie Raymond | Director | 250 | 0.00% | Jul 14, 2026 |
| John O. Larsen | Director | 301,500 | 0.12% | Feb 24, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Robert J. Durian EVP and CFO | Aug 10, 2026 | Sale | −0.1 | $68.60 | $7 | 158,146 |
| Antonio P. Smyth Executive Vice President | Apr 15, 2026 | Tax withholding | −1,259 | $72.18 | $90.87K | 20,678 |
| Rebecca C. Valcq Vice President | Feb 19, 2026 | Tax withholding | −438 | $70.01 | $30.66K | 2,335 |
| Leon David A. de Senior Vice President | Feb 19, 2026 | Tax withholding | −5,207 | $70.01 | $364.54K | 47,708 |
| Leon David A. de Senior Vice President | Feb 19, 2026 | Award | +2,306 | – | – | 52,915 |
| Leon David A. de Senior Vice President | Feb 19, 2026 | Award | +8,616 | – | – | 50,609 |
| Rebecca C. Valcq Vice President | Feb 19, 2026 | Award | +1,004 | – | – | 2,773 |
| Robert J. Durian EVP and CFO | Feb 19, 2026 | Award | +27,882 | – | – | 167,806 |
| Robert J. Durian EVP and CFO | Feb 19, 2026 | Award | +5,950 | – | – | 173,756 |
| Robert J. Durian EVP and CFO | Feb 19, 2026 | Tax withholding | −16,630 | $70.01 | $1.16M | 157,126 |
| Dylan Syse CAO and Controller | Feb 19, 2026 | Award | +1,063 | – | – | 3,776 |
| Dylan Syse CAO and Controller | Feb 19, 2026 | Award | +750 | – | – | 4,526 |
| Dylan Syse CAO and Controller | Feb 19, 2026 | Tax withholding | −506 | $70.01 | $35.43K | 4,020 |
| Mayuri Farlinger Vice President | Feb 19, 2026 | Award | +3,026 | – | – | 10,513 |
| Mayuri Farlinger Vice President | Feb 19, 2026 | Tax withholding | −1,179 | $70.01 | $82.54K | 10,432 |
| Mayuri Farlinger Vice President | Feb 19, 2026 | Award | +1,098 | – | – | 11,611 |
| Raja Sundararajan Executive Vice President | Feb 19, 2026 | Award | +8,784 | – | – | 44,374 |
| Raja Sundararajan Executive Vice President | Feb 19, 2026 | Award | +18,768 | – | – | 35,590 |
| Raja Sundararajan Executive Vice President | Feb 19, 2026 | Tax withholding | −11,324 | $70.01 | $792.79K | 33,050 |
| Lisa M. Barton President and CEO, Director | Feb 19, 2026 | Award | +47,533 | – | – | 106,519 |
| Lisa M. Barton President and CEO, Director | Feb 19, 2026 | Award | +29,527 | – | – | 136,046 |
| Lisa M. Barton President and CEO, Director | Feb 19, 2026 | Tax withholding | −28,594 | $70.01 | $2.00M | 107,452 |
| Antonio P. Smyth Executive Vice President | Feb 19, 2026 | Award | +5,240 | – | – | 28,081 |
| Antonio P. Smyth Executive Vice President | Feb 19, 2026 | Tax withholding | −6,226 | $70.01 | $435.88K | 21,855 |
| Antonio P. Smyth Executive Vice President | Feb 19, 2026 | Award | +13,114 | – | – | 22,841 |
| Antonio P. Smyth Executive Vice President | Apr 15, 2025 | Award | +9,727 | – | – | 9,727 |
| Benjamin M. Bilitz CAO and Controller | Feb 20, 2025 | Tax withholding | −1,339 | $61.62 | $82.51K | 19,420 |
| Benjamin M. Bilitz CAO and Controller | Feb 20, 2025 | Award | +1,590.02 | – | – | 19,822 |
| Benjamin M. Bilitz CAO and Controller | Feb 20, 2025 | Award | +937 | – | – | 20,759 |
| Leon David A. de Senior Vice President | Feb 20, 2025 | Tax withholding | −2,560 | $61.62 | $157.75K | 40,827 |
| Leon David A. de Senior Vice President | Feb 20, 2025 | Award | +2,532 | – | – | 43,387 |
| Leon David A. de Senior Vice President | Feb 20, 2025 | Award | +3,256.2 | – | – | 40,855 |
| Mayuri Farlinger Vice President | Feb 20, 2025 | Tax withholding | −560 | $61.62 | $34.51K | 6,406 |
| Mayuri Farlinger Vice President | Feb 20, 2025 | Award | +1,021.81 | – | – | 5,810 |
| Mayuri Farlinger Vice President | Feb 20, 2025 | Award | +1,156 | – | – | 6,966 |
| John O. Larsen Director | Feb 20, 2025 | Tax withholding | −24,461 | $61.62 | $1.51M | 289,939 |
| John O. Larsen Director | Feb 20, 2025 | Award | +32,198.95 | – | – | 314,400 |
| Raja Sundararajan Executive Vice President | Feb 20, 2025 | Award | +5,802 | – | – | 16,358 |
| Lisa M. Barton President and CEO, Director | Feb 20, 2025 | Award | +21,266 | – | – | 57,710 |
| Robert J. Durian EVP and CFO | Feb 20, 2025 | Tax withholding | −7,401 | $61.62 | $456.05K | 135,643 |
| Robert J. Durian EVP and CFO | Feb 20, 2025 | Award | +9,472.04 | – | – | 136,512 |
| Robert J. Durian EVP and CFO | Feb 20, 2025 | Award | +6,532 | – | – | 143,044 |
| Benjamin M. Bilitz CAO and Controller | Nov 20, 2024 | Gift | −850 | – | – | 18,012 |
| Mayuri Farlinger Vice President | May 7, 2024 | Award | +236 | – | – | 4,631 |
| Leon David A. de Senior Vice President | May 7, 2024 | Award | +465 | – | – | 36,835 |
| Raja Sundararajan Executive Vice President | Feb 20, 2024 | Buy | +500 | $48.26 | $24.13K | 10,556 |
| Lisa M. Barton President and CEO, Director | Feb 20, 2024 | Buy | +1,100 | $48.56 | $53.42K | 36,444 |
| Leon David A. de Senior Vice President | Feb 15, 2024 | Award | +2,386 | – | – | 40,436 |
| Leon David A. de Senior Vice President | Feb 15, 2024 | Award | +6,981 | – | – | 38,050 |
| Leon David A. de Senior Vice President | Feb 15, 2024 | Tax withholding | −4,269 | $48.40 | $206.62K | 36,167 |
| Raja Sundararajan Executive Vice President | Feb 15, 2024 | Award | +5,269 | – | – | 10,056 |
| Benjamin M. Bilitz CAO and Controller | Feb 15, 2024 | Award | +3,600 | – | – | 19,463 |
| Benjamin M. Bilitz CAO and Controller | Feb 15, 2024 | Award | +1,139 | – | – | 20,602 |
| Benjamin M. Bilitz CAO and Controller | Feb 15, 2024 | Tax withholding | −2,261 | $48.40 | $109.43K | 18,341 |
| Terry L. Kouba Senior Vice President | Feb 15, 2024 | Award | +6,981 | – | – | 44,564 |
| Terry L. Kouba Senior Vice President | Feb 15, 2024 | Tax withholding | −4,101 | $48.40 | $198.49K | 42,849 |
| Terry L. Kouba Senior Vice President | Feb 15, 2024 | Award | +2,386 | – | – | 46,950 |
| Lisa M. Barton President and CEO, Director | Feb 15, 2024 | Award | +23,321 | – | – | 35,344 |
| Robert J. Durian EVP and CFO | Feb 15, 2024 | Award | +22,012 | – | – | 128,467 |
| Robert J. Durian EVP and CFO | Feb 15, 2024 | Tax withholding | −13,902 | $48.40 | $672.86K | 122,287 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.