Alliant Energy Corporation (LNT) Ownership
LNT ownership summary
as of October 18, 2026- Institutions
- 99.1% of shares outstanding
- Insiders
- 0.15% of shares outstanding
- Shares outstanding
- 259.3M
- Float
- 258.4M shares available to trade
- Short interest
- 12.21% 27.7M shares short
- Days to cover
- 10.74 short interest up 8.5% vs prior month
- Institutions 99.09%
- Insiders 0.15%
- Other investors 0.76%
LNT top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 9.64% | 25.0M | $1.71B | +487,232 (+2.0%) | June 30, 2026 |
| 2 | State Street Corp | 6.78% | 17.6M | $1.20B | +561,347 (+3.3%) | June 30, 2026 |
| 3 | Vanguard Capital Management, LLC | 6.50% | 16.9M | $1.15B | +162,252 (+1.0%) | June 30, 2026 |
| 4 | Vanguard Portfolio Management, LLC | 5.55% | 14.4M | $982.9M | −208,829 (−1.4%) | June 30, 2026 |
| 5 | T. Rowe Price Associates, Inc. | 4.44% | 11.5M | $786.7M | +904,652 (+8.5%) | June 30, 2026 |
| 6 | HHG PLC | 4.35% | 11.3M | $770.2M | +138,683 (+1.2%) | March 31, 2026 |
| 7 | Jupiter Topco LLC | 4.23% | 11.0M | $750.0M | +11.0M (0.0%) | June 30, 2026 |
| 8 | Nuveen, LLC | 3.04% | 7.9M | $539.1M | +450,560 (+6.1%) | June 30, 2026 |
| 9 | Geode Capital Management, LLC | 2.86% | 7.4M | $506.1M | +149,419 (+2.1%) | June 30, 2026 |
| 10 | Massachusetts Financial Services Company | 2.68% | 6.9M | $473.9M | −110,725 (−1.6%) | June 30, 2026 |
| 11 | Victory Capital Management Inc. | 2.48% | 6.4M | $440.1M | −796,455 (−11.0%) | June 30, 2026 |
| 12 | Bank of America Corp | 2.15% | 5.6M | $381.4M | +237,754 (+4.4%) | June 30, 2026 |
| 13 | FMR Inc | 1.95% | 5.0M | $344.6M | +2.2M (+76.2%) | June 30, 2026 |
| 14 | Amvescap Plc. | 1.89% | 4.9M | $335.6M | −75,964 (−1.5%) | June 30, 2026 |
| 15 | Franklin Templeton Inc | 1.50% | 3.9M | $265.1M | −15,548 (−0.4%) | June 30, 2026 |
| 16 | Morgan Stanley - Brokerage Accounts | 1.31% | 3.4M | $231.8M | +41,117 (+1.2%) | June 30, 2026 |
| 17 | Deutsche Bank AG | 1.30% | 3.4M | $231.2M | +2.1M (+165.6%) | June 30, 2026 |
| 18 | Pictet Asset Manangement SA | 1.29% | 3.3M | $227.9M | −76,944 (−2.3%) | June 30, 2026 |
| 19 | JPMorgan Chase & Co | 1.21% | 3.1M | $214.0M | +881,253 (+39.2%) | June 30, 2026 |
| 20 | Cohen & Steers Inc | 1.16% | 3.0M | $206.1M | −259,668 (−7.9%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 13 holders added 19.3M shares and 7 cut 1.5M.
LNT top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 3.16% | 8.2M | $560.0M | −20,901 (−0.3%) | August 31, 2026 |
| 2 | Janus Henderson Enterprise D | 2.67% | 6.9M | $472.5M | — | August 31, 2026 |
| 3 | Vanguard 500 Index Investor | 2.63% | 6.8M | $465.2M | −49,471 (−0.7%) | September 30, 2026 |
| 4 | Vanguard Small Cap Index | 2.25% | 5.8M | $398.9M | +2.9M (+96.5%) | September 30, 2026 |
| 5 | State Street®UtilSelSectSPDR®ETF | 1.72% | 4.5M | $304.4M | +45,843 (+1.0%) | September 30, 2026 |
| 6 | Victory Sycamore Established Value R | 1.64% | 4.2M | $290.4M | −575,000 (−11.9%) | June 30, 2026 |
| 7 | Vanguard MStar Small Cap Value Index | 1.46% | 3.8M | $259.5M | +1.9M (+101.3%) | September 30, 2026 |
| 8 | Franklin Utilities A1 | 1.35% | 3.5M | $239.1M | — | September 30, 2026 |
| 9 | iShares Core S&P 500 ETF | 1.33% | 3.4M | $235.6M | −5,550 (−0.2%) | September 30, 2026 |
| 10 | Fidelity 500 Index | 1.29% | 3.4M | $229.1M | +12,890 (+0.4%) | August 31, 2026 |
| 11 | iShares Select Dividend ETF | 1.26% | 3.3M | $222.6M | −1,118 (−0.0%) | September 30, 2026 |
| 12 | State Street® SPDR® S&P 500® ETF | 1.22% | 3.2M | $215.9M | — | September 30, 2026 |
| 13 | Invesco S&P 500® Equal Weight ETF | 1.11% | 2.9M | $196.9M | −5,985 (−0.2%) | September 30, 2026 |
| 14 | CREF Total Global Stock Account R3 | 0.96% | 2.5M | $169.7M | −4,332 (−0.2%) | August 31, 2026 |
| 15 | State Street® SPDR® S&P® Dividend ETF | 0.94% | 2.4M | $165.8M | — | September 30, 2026 |
| 16 | MFS Mid Cap Value A | 0.88% | 2.3M | $155.3M | −26,660 (−1.2%) | August 31, 2026 |
| 17 | T. Rowe Price Equity Income | 0.77% | 2.0M | $136.6M | −53,200 (−2.6%) | September 30, 2026 |
| 18 | Reaves Utility Income | 0.67% | 1.7M | $118.5M | −128,715 (−6.9%) | June 30, 2026 |
| 19 | Pictet Glbl Sel Fd Glbl Utilities Eq P | 0.65% | 1.7M | $115.3M | −21,136 (−1.2%) | May 31, 2026 |
| 20 | Fidelity Select Utilities | 0.63% | 1.6M | $112.5M | −133,500 (−7.5%) | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
LNT insider transactions
latest 4| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2025-08-13 | Lisa C. McClain | Sell | $65.37 | — | — |
| 2025-08-04 | Lisa C. McClain | Buy | $66.34 | — | — |
| 2024-02-20 | Lisa M Barton | Buy | $48.56 | 1,100 | $53,416 |
| 2024-02-20 | Raja Sundararajan | Buy | $48.26 | 500 | $24,130 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
LNT shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns LNT
Institutional investors own 99.1% of Alliant Energy's shares and insiders 0.15%. The largest holder is BlackRock Inc with 9.64% of the shares (25.0M), as of June 30, 2026. Among the top 20 institutions, 13 added shares and 7 reduced their stake in the latest filings. Short interest is 12.21% of the float, or 10.74 days of average trading volume. The share count rose 16.8% since 2014.
Related: LNT analyst forecast, LNT key metrics, LNT dividend history. See the LNT stock overview for the latest quote and news.
LNT ownership FAQ
Who owns the most Alliant Energy stock?
The largest shareholders of Alliant Energy are BlackRock Inc (9.64%), State Street Corp (6.78%), Vanguard Capital Management, LLC (6.50%), Vanguard Portfolio Management, LLC (5.55%), T. Rowe Price Associates, Inc. (4.44%).
What percentage of Alliant Energy is owned by institutions?
Institutions hold 99.1% of Alliant Energy's shares outstanding; insiders hold 0.15%.
Which funds own Alliant Energy?
The largest fund holders of Alliant Energy are Vanguard MStar Total Stk Mkt Idx Invest (3.16%), Janus Henderson Enterprise D (2.67%), Vanguard 500 Index Investor (2.63%), Vanguard Small Cap Index (2.25%), State Street®UtilSelSectSPDR®ETF (1.72%).
What is Alliant Energy's short interest?
27.7M shares of Alliant Energy were sold short, 12.21% of the float; at the average daily volume it would take 10.74 days to cover.
Are insiders buying or selling Alliant Energy?
Of the latest 4 reported insider transactions in Alliant Energy (since February 20, 2024), 3 were purchases and 1 were sales.
How many shares of Alliant Energy are outstanding?
Alliant Energy has 259.3M shares outstanding, of which 258.4M are in the public float.
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