LNT Institutional Ownership & Shareholders
ALLIANT ENERGY CORP (LNT) is currently held by 864 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $18.83B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of LNT tracked by InsiderSet, reporting ownership valued at approximately $1.91B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $1.66B, representing an estimated loss of -12.89% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 51% of the total disclosed LNT value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., State Street Corp, Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in ALLIANT ENERGY CORP (LNT).
This page ranks the largest institutional LNT shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
864
Total Reported Value
$18.83B
Largest Holder
Blackrock, Inc.
Largest Position
$1.91B
Insider Transactions (90d)
1
Latest Filing Quarter
Q2 2026
New Institutional Positions
62
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.03% | 24,986,672 | $1,906,233,150 | $1,660,614,221 | -$245,618,929 | -12.89% | |
| State Street Corp | 0.04% | 17,571,998 | $1,340,567,727 | $1,167,834,987 | -$172,732,740 | -12.89% | |
| Vanguard Capital Management Llc | 0.03% | 16,861,714 | $1,286,380,161 | $1,120,629,512 | -$165,750,649 | -12.89% | |
| Vanguard Portfolio Management Llc | 0.05% | 14,386,177 | $1,097,521,443 | $956,105,323 | -$141,416,120 | -12.89% | |
| Price T Rowe Associates Inc | 0.09% | 11,515,298 | $878,504,000 | $765,306,705 | -$113,197,295 | -12.89% | |
| Janus Henderson Group Plc | 0.40% | 11,273,621 | $808,995,539 | $749,244,852 | -$59,750,687 | -7.39% | |
| Nuveen, Llc | 0.14% | 7,890,946 | $602,000,160 | $524,432,271 | -$77,567,889 | -12.89% | |
| Geode Capital Management, Llc | 0.03% | 7,407,445 | $563,048,881 | $492,298,795 | -$70,750,086 | -12.57% | |
| Massachusetts Financial Services Co | 0.17% | 6,936,512 | $533,760,499 | $461,000,588 | -$72,759,911 | -13.63% | |
| Victory Capital Management Inc | 0.28% | 6,442,409 | $491,491,383 | $428,162,502 | -$63,328,881 | -12.89% | |
| Bank Of America Corp | 0.03% | 5,582,621 | $425,898,125 | $371,020,992 | -$54,877,133 | -12.89% | |
| Fmr Llc | 0.02% | 5,043,741 | $384,786,997 | $335,207,027 | -$49,579,970 | -12.89% | |
| Invesco Ltd. | 0.03% | 4,912,484 | $374,773,431 | $326,483,687 | -$48,289,744 | -12.89% | |
| Morgan Stanley | 0.01% | 3,392,292 | $258,798,124 | $225,451,726 | -$33,346,398 | -12.89% | |
| Deutsche Bank Ag\ | 0.08% | 3,383,604 | $258,135,149 | $224,874,322 | -$33,260,827 | -12.89% | |
| Pictet Asset Management Holding Sa | 0.24% | 3,335,106 | $254,435,237 | $221,651,145 | -$32,784,092 | -12.89% | |
| Jpmorgan Chase & Co | 0.01% | 3,131,630 | $241,699,333 | $208,128,130 | -$33,571,203 | -13.89% | |
| Cohen & Steers, Inc. | 0.36% | 3,016,592 | $230,136,000 | $200,482,704 | -$29,653,296 | -12.89% | |
| Goldman Sachs Group Inc | 0.02% | 2,917,632 | $222,586,175 | $193,905,823 | -$28,680,352 | -12.89% | |
| Reaves W H & Co Inc | 3.22% | 2,784,686 | $212,443,695 | $185,070,232 | -$27,373,463 | -12.89% | |
| Mairs & Power Growth Fund | Andrew R. Adams | 1.86% | 2,657,913 | $202,772,183 | $176,644,898 | -$26,127,285 | -12.89% |
| Barclays Plc | 0.06% | 2,639,212 | $201,345,485 | $175,402,030 | -$25,943,455 | -12.89% | |
| Charles Schwab Investment Management Inc | 0.02% | 2,410,742 | $183,915,507 | $160,217,913 | -$23,697,594 | -12.89% | |
| Northern Trust Corp | 0.02% | 2,139,993 | $163,260,066 | $142,223,935 | -$21,036,131 | -12.89% | |
| Point72 Asset Management, L.P. | 0.24% | 2,094,866 | $159,817,327 | $139,224,794 | -$20,592,533 | -12.89% | |
| Magellan Asset Management Ltd | 3.39% | 1,987,533 | $151,628,893 | $132,091,443 | -$19,537,450 | -12.89% | |
| Duff & Phelps Investment Management Co | 1.41% | 1,964,325 | $149,858,354 | $130,549,039 | -$19,309,315 | -12.89% | |
| Legal & General Group Plc | 0.03% | 1,887,114 | $143,967,676 | $125,417,596 | -$18,550,080 | -12.88% | |
| Jennison Associates Llc | 0.08% | 1,713,259 | $130,704,529 | $113,863,193 | -$16,841,336 | -12.89% | |
| Bank Of New York Mellon Corp | 0.02% | 1,470,879 | $112,213,371 | $97,754,618 | -$14,458,753 | -12.89% | |
| Vanguard Fiduciary Trust Co | 0.02% | 1,450,067 | $110,625,611 | $96,371,453 | -$14,254,158 | -12.89% | |
| Johnson Investment Counsel Inc | 0.80% | 1,435,378 | $109,504,960 | $95,395,222 | -$14,109,738 | -12.89% | |
| Dimensional Fund Advisors Lp | 0.02% | 1,428,178 | $108,967,897 | $94,916,710 | -$14,051,187 | -12.89% | |
| Merewether Investment Management, Lp | 2.03% | 1,412,803 | $107,782,741 | $93,894,887 | -$13,887,854 | -12.89% | |
| Squarepoint Ops Llc | 0.20% | 1,345,323 | $102,634,692 | $89,410,167 | -$13,224,525 | -12.89% | |
| Neuberger Berman Group Llc | 0.07% | 1,327,963 | $101,310,284 | $88,256,421 | -$13,053,863 | -12.89% | |
| Alliancebernstein L.P. | 0.03% | 1,271,608 | $91,250,590 | $84,511,068 | -$6,739,522 | -7.39% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.02% | 1,186,759 | $85,161,826 | $78,872,003 | -$6,289,823 | -7.39% | |
| Ubs Group Ag | 0.01% | 1,114,148 | $84,998,352 | $74,046,276 | -$10,952,076 | -12.89% | |
| Vaughan Nelson Investment Management, L.P. | 0.74% | 1,099,030 | $83,844,998 | $73,041,534 | -$10,803,464 | -12.89% | |
| Thrivent Financial For Lutherans | 0.14% | 1,065,784 | $81,309,000 | $70,832,005 | -$10,476,995 | -12.89% | |
| Envestnet Asset Management Inc | 0.02% | 936,127 | $71,417,092 | $62,215,000 | -$9,202,092 | -12.88% | |
| Voloridge Investment Management, Llc | 0.30% | 918,789 | $70,094,413 | $61,062,717 | -$9,031,696 | -12.89% | |
| First Trust Advisors Lp | 0.04% | 915,921 | $69,875,574 | $60,872,110 | -$9,003,464 | -12.88% | |
| Citigroup Inc | 0.03% | 901,063 | $68,742,096 | $59,884,647 | -$8,857,449 | -12.89% | |
| Principal Financial Group Inc | 0.03% | 878,479 | $67,021,766 | $58,383,714 | -$8,638,052 | -12.89% | |
| Toronto Dominion Bank | 0.11% | 877,473 | $66,942,415 | $58,316,856 | -$8,625,559 | -12.89% | |
| Energy Income Partners, Llc | 0.99% | 826,750 | $63,072,758 | $54,945,805 | -$8,126,953 | -12.89% | |
| Bahl & Gaynor Inc | 0.29% | 818,318 | $62,429,480 | $54,385,414 | -$8,044,066 | -12.89% | |
| Lpl Financial Llc | 0.01% | 797,231 | $60,820,726 | $52,983,972 | -$7,836,754 | -12.89% |
Frequently asked questions about LNT
Who are the largest institutional holders of LNT?
The largest institutional holders of LNT reported in the latest SEC Form 13F filings include Blackrock, Inc., State Street Corp, Vanguard Capital Management Llc, Vanguard Portfolio Management Llc, and Price T Rowe Associates Inc. InsiderSet ranks institutional holders by their latest reported LNT position.
What is LNT institutional ownership?
This page tracks LNT positions reported by institutional investment managers through SEC Form 13F. ALLIANT ENERGY CORP (LNT) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own LNT?
InsiderSet currently tracks 864 institutional managers reporting LNT holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of LNT shareholders.
How much LNT stock do institutions own?
Institutional investment managers disclosed approximately $18.83B in LNT holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was LNT institutional ownership last updated?
The latest LNT institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional LNT holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its LNT position after the reporting date.
Are institutions buying or selling LNT?
Institutional buying and selling can be analyzed by comparing LNT positions across consecutive 13F reporting periods. InsiderSet's LNT Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View LNT ownership changes.
How has LNT institutional ownership changed over time?
InsiderSet tracks LNT institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.