Security Snapshot

ALLIANT ENERGY CORP - COM (LNT) Institutional Ownership

CUSIP: 018802108

13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026

Latest Period

Q4 2025

Institutions Reporting

829

Shares (Excl. Options)

231,092,622

Price

$65.01

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Type / Class
Equity / COM
Symbol
LNT on Nasdaq
Price per share
$71.76
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
231,092,622
Total reported value
$15,020,836,759
% of total 13F portfolios
0.01%
Share change
+8,201,827
Value change
+$531,652,770
Number of holders
829
Price from insider filings
$71.76
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

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Quick Takeaways

  • LNT - ALLIANT ENERGY CORP - COM is tracked under CUSIP 018802108.
  • 829 institutions reported positions in Q4 2025.
  • Schedule 13D/13G significant owner rows are not currently available.

What Changed

  • Holder count moved from 829 to 83 between Q4 2025 and Q1 2026.
  • Reported value moved from $15,020,836,759 to $74,327,175.

Why This Matters

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Source Evidence

Source: SEC Form 13F

Latest holder context comes from 829 institutions filings for Q4 2025.

Open SEC Evidence

Investment Quick Answers

What is CUSIP 018802108?
CUSIP 018802108 identifies LNT - ALLIANT ENERGY CORP - COM in SEC 13F datasets.

Where can I see the latest institutional holders?
Review the Q4 2025 holders report and the ownership history table below.

As of 31 Dec 2025, 829 institutional investors reported holding 231,092,622 shares of ALLIANT ENERGY CORP - COM (LNT).

Institutional Holders of ALLIANT ENERGY CORP - COM (LNT) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q1 1,034,791 $74,327,175 -$1,787,591 $71.76 83
2025 Q4 231,092,622 $15,020,836,759 +$531,652,770 $65.01 829
2025 Q3 222,691,445 $15,007,064,597 +$642,238,366 $67.41 786
2025 Q2 213,350,581 $12,895,137,316 +$281,029,932 $60.47 769
2025 Q1 208,819,935 $13,423,860,951 -$146,017,993 $64.35 766
2024 Q4 213,565,219 $12,628,344,547 +$400,363,611 $59.14 712
2024 Q3 206,287,416 $12,518,860,715 +$153,435,697 $60.69 674
2024 Q2 204,685,404 $10,417,496,303 +$53,362,590 $50.90 652
2024 Q1 203,645,373 $10,260,375,517 -$25,284,962 $50.40 626
2023 Q4 203,987,472 $10,463,168,169 +$179,035,035 $51.30 649
2023 Q3 200,372,379 $9,708,737,061 +$201,611,589 $48.45 608
2023 Q2 196,096,013 $10,289,238,901 +$167,558,111 $52.48 628
2023 Q1 192,985,507 $10,304,280,921 +$154,270,504 $53.40 632
2022 Q4 190,205,326 $10,500,662,225 -$19,308,649 $55.21 655
2022 Q3 190,436,751 $10,093,451,854 +$234,982,612 $52.99 616
2022 Q2 185,745,010 $10,882,972,486 -$88,037,929 $58.61 647
2022 Q1 188,349,950 $11,756,670,774 +$118,085,044 $62.48 624
2021 Q4 186,536,788 $11,459,667,194 -$74,829,877 $61.47 605
2021 Q3 187,901,370 $10,516,687,204 -$71,378,977 $55.98 571
2021 Q2 189,761,774 $10,578,819,642 +$85,469,768 $55.76 563
2021 Q1 188,545,390 $10,197,626,737 +$365,566,898 $54.16 538
2020 Q4 181,924,843 $9,367,335,261 -$35,775,485 $51.53 567
2020 Q3 182,169,273 $9,405,415,184 -$102,118,098 $51.65 547
2020 Q2 184,027,428 $8,821,081,675 +$33,790,773 $47.84 525
2020 Q1 183,485,190 $8,862,412,947 -$100,450,631 $48.29 556
2019 Q4 185,146,033 $10,129,855,948 +$135,711,739 $54.72 555
2019 Q3 182,028,822 $9,816,186,538 +$12,104,673 $53.93 527
2019 Q2 182,371,156 $8,950,540,655 +$95,436,507 $49.08 520
2019 Q1 183,504,783 $8,647,571,376 +$168,277,891 $47.13 522
2018 Q4 180,089,716 $7,607,111,325 +$439,299,604 $42.25 526
2018 Q3 168,290,823 $7,164,237,428 +$143,016,816 $42.57 507
2018 Q2 166,361,550 $7,039,628,474 +$53,556,374 $42.32 500
2018 Q1 164,981,094 $6,737,624,590 +$123,733,316 $40.86 479
2017 Q4 162,413,118 $6,919,273,191 +$128,735,624 $42.61 492
2017 Q3 158,454,068 $6,586,894,161 +$200,835,778 $41.57 451
2017 Q2 153,753,833 $6,178,213,638 +$213,749,978 $40.17 454
2017 Q1 153,320,192 $6,072,830,450 +$840,416,224 $39.61 447
2016 Q4 152,353,550 $5,772,638,852 -$72,814,407 $37.89 448
2016 Q3 153,860,948 $5,891,328,359 +$111,554,138 $38.31 442
2016 Q2 150,857,047 $5,983,916,736 +$3,034,488,680 $39.70 443
2016 Q1 73,358,629 $5,440,534,552 +$62,360,495 $74.28 398
2015 Q4 72,678,306 $4,539,639,077 +$77,227,957 $62.45 402
2015 Q3 71,313,872 $4,170,442,333 +$92,184,015 $58.49 377
2015 Q2 70,241,926 $4,056,938,981 +$28,176,154 $57.72 361
2015 Q1 71,271,823 $4,490,939,928 +$73,280,998 $63.00 383
2014 Q4 68,335,725 $4,541,817,732 +$93,883,341 $66.42 365
2014 Q3 67,292,056 $3,728,645,330 -$35,321,572 $55.41 354
2014 Q2 67,923,142 $4,133,283,101 +$119,912,244 $60.86 353
2014 Q1 66,045,980 $3,751,401,440 -$15,523,806 $56.81 353

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