Alliant Energy Corporation

Historical 13F Holders

Symbol
LNT
CUSIP
018802108
All holders as of
Q2 2026
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 018802108 since 12/18/2024, largest first.

Filer % of Class Filed
Vanguard Capital Management LLC 13G 7.5% 4/29/2026
Event 3/31/2026
Vanguard Portfolio Management LLC 13G 5.7% 4/28/2026
Event 3/31/2026
Under 5%, checked the "5 percent or less" box, or amended by a later filing (1)
Vanguard Group Inc 13G/A 0% 3/26/2026
Event 3/13/2026

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q3 82 1.62 M $103 M
2026 Q2 907 277 M $19.7 B
2026 Q1 875 239 M $17.1 B
2025 Q4 852 232 M $15.1 B
2025 Q3 812 225 M $15.1 B
2025 Q2 795 214 M $12.9 B
2025 Q1 801 209 M $13.4 B
2024 Q4 733 214 M $12.8 B
2024 Q3 699 209 M $12.7 B
2024 Q2 679 208 M $10.6 B
2024 Q1 655 211 M $10.6 B
2023 Q4 676 209 M $10.7 B
2023 Q3 637 200 M $9.75 B
2023 Q2 654 196 M $10.3 B
2023 Q1 661 194 M $10.3 B
2022 Q4 684 204 M $11.5 B
2022 Q3 648 195 M $10.3 B
2022 Q2 674 186 M $10.9 B
2022 Q1 654 189 M $11.8 B
2021 Q4 633 187 M $11.5 B
2021 Q3 596 188 M $10.5 B
2021 Q2 594 190 M $10.6 B
2021 Q1 565 189 M $10.2 B
2020 Q4 602 184 M $9.48 B
2020 Q3 573 182 M $9.41 B
2020 Q2 546 184 M $8.83 B
2020 Q1 573 188 M $9.08 B
2019 Q4 576 189 M $10.4 B
2019 Q3 549 185 M $9.96 B
2019 Q2 551 184 M $9.05 B
2019 Q1 547 184 M $8.65 B
2018 Q4 542 184 M $7.76 B
2018 Q3 528 172 M $7.33 B
2018 Q2 519 169 M $7.17 B
2018 Q1 498 169 M $6.77 B
2017 Q4 505 162 M $6.92 B
2017 Q3 461 159 M $6.59 B
2017 Q2 463 154 M $6.18 B
2017 Q1 462 156 M $6.17 B
2016 Q4 463 153 M $5.81 B
2016 Q3 459 154 M $5.90 B
2016 Q2 467 151 M $6.05 B
2016 Q1 415 76.8 M $5.54 B
2015 Q4 422 73.8 M $4.66 B
2015 Q3 392 71.4 M $4.18 B
2015 Q2 373 70.3 M $4.06 B
2015 Q1 393 71.3 M $4.49 B
2014 Q4 373 69.2 M $4.60 B
2014 Q3 364 67.3 M $3.73 B
2014 Q2 374 70.6 M $4.30 B
2014 Q1 364 66.1 M $3.75 B