Common Stock, Shares, Outstanding of ALLIANT ENERGY CORP from 30 Jun 2010 to 31 Dec 2025

Taxonomy & unit
us-gaap: shares
Description
Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.
Summary
ALLIANT ENERGY CORP quarterly Common Stock, Shares, Outstanding in shares history and change rate from 30 Jun 2010 to 31 Dec 2025.
  • ALLIANT ENERGY CORP Common Stock, Shares, Outstanding for the quarter ending 31 Dec 2025 was 257,137,261, a 0.17% increase year-over-year.
Source SEC data
View on sec.gov
Common Stock, Shares, Outstanding, Quarterly (shares)
Common Stock, Shares, Outstanding, YoY Quarterly Change (%)

ALLIANT ENERGY CORP Quarterly Common Stock, Shares, Outstanding (shares)

Period Value YoY Chg Change % Date Report Filed Fiscal Year Fiscal Period
Q4 2025 257,137,261 +447,039 +0.17% 31 Dec 2025 10-K 20 Feb 2026 2025 FY
Q3 2025 257,053,689 +454,487 +0.18% 30 Sep 2025 10-Q 07 Nov 2025 2025 Q3
Q2 2025 256,969,227 +469,652 +0.18% 30 Jun 2025 10-Q 08 Aug 2025 2025 Q2
Q1 2025 256,876,299 +497,267 +0.19% 31 Mar 2025 10-Q 09 May 2025 2025 Q1
Q4 2024 256,690,222 +593,374 +0.23% 31 Dec 2024 10-K 20 Feb 2026 2025 FY
Q3 2024 256,599,202 +1,420,115 +0.56% 30 Sep 2024 10-Q 01 Nov 2024 2024 Q3
Q2 2024 256,499,575 +3,780,483 +1.5% 30 Jun 2024 10-Q 02 Aug 2024 2024 Q2
Q1 2024 256,379,032 +4,991,244 +2% 31 Mar 2024 10-Q 03 May 2024 2024 Q1
Q4 2023 256,096,848 +4,961,882 +2% 31 Dec 2023 10-K 20 Feb 2026 2025 FY
Q3 2023 255,179,087 +4,157,257 +1.7% 30 Sep 2023 10-Q 03 Nov 2023 2023 Q3
Q2 2023 252,719,092 +1,792,860 +0.71% 30 Jun 2023 10-Q 04 Aug 2023 2023 Q2
Q1 2023 251,387,788 +574,060 +0.23% 31 Mar 2023 10-Q 05 May 2023 2023 Q1
Q4 2022 251,134,966 +660,437 +0.26% 31 Dec 2022 10-K 20 Feb 2026 2025 FY
Q3 2022 251,021,830 +661,043 +0.26% 30 Sep 2022 10-Q 08 Nov 2022 2022 Q3
Q2 2022 250,926,232 +668,376 +0.27% 30 Jun 2022 10-Q 05 Aug 2022 2022 Q2
Q1 2022 250,813,728 +679,176 +0.27% 31 Mar 2022 10-Q 29 Apr 2022 2022 Q1
Q4 2021 250,474,529 +606,114 +0.24% 31 Dec 2021 10-K 21 Feb 2025 2024 FY
Q3 2021 250,360,787 +600,124 +0.24% 30 Sep 2021 10-Q 05 Nov 2021 2021 Q3
Q2 2021 250,257,856 +613,504 +0.25% 30 Jun 2021 10-Q 06 Aug 2021 2021 Q2
Q1 2021 250,134,552 +630,798 +0.25% 31 Mar 2021 10-Q 07 May 2021 2021 Q1
Q4 2020 249,868,415 +4,845,615 +2% 31 Dec 2020 10-K 16 Feb 2024 2023 FY
Q3 2020 249,760,663 +9,417,714 +3.9% 30 Sep 2020 10-Q 03 Nov 2020 2020 Q3
Q2 2020 249,644,352 +12,123,278 +5.1% 30 Jun 2020 10-Q 10 Aug 2020 2020 Q2
Q1 2020 249,503,754 +12,109,345 +5.1% 31 Mar 2020 10-Q 08 May 2020 2020 Q1
Q4 2019 245,022,800 +8,959,521 +3.8% 31 Dec 2019 10-K 24 Feb 2023 2022 FY
Q3 2019 240,342,949 +4,406,502 +1.9% 30 Sep 2019 10-Q 07 Nov 2019 2019 Q3
Q2 2019 237,521,074 +3,748,166 +1.6% 30 Jun 2019 10-Q 02 Aug 2019 2019 Q2
Q1 2019 237,394,409 +5,912,581 +2.6% 31 Mar 2019 10-Q 03 May 2019 2019 Q1
Q4 2018 236,063,279 +4,714,633 +2% 31 Dec 2018 10-K 18 Feb 2022 2021 FY
Q3 2018 235,936,447 +4,732,087 +2% 30 Sep 2018 10-Q 07 Nov 2018 2018 Q3
Q2 2018 233,772,908 +2,710,491 +1.2% 30 Jun 2018 10-Q 03 Aug 2018 2018 Q2
Q1 2018 231,481,828 +3,658,550 +1.6% 31 Mar 2018 10-Q 03 May 2018 2018 Q1
Q4 2017 231,348,646 +3,674,992 +1.6% 31 Dec 2017 10-K 19 Feb 2021 2020 FY
Q3 2017 231,204,360 +3,703,932 +1.6% 30 Sep 2017 10-Q 03 Nov 2017 2017 Q3
Q2 2017 231,062,417 +3,728,671 +1.6% 30 Jun 2017 10-Q 04 Aug 2017 2017 Q2
Q1 2017 227,823,278 +114,260,627 +101% 31 Mar 2017 10-Q 04 May 2017 2017 Q1
Q4 2016 227,673,654 +755,222 +0.33% 31 Dec 2016 10-K 21 Feb 2020 2019 FY
Q3 2016 227,500,428 +114,140,003 +101% 30 Sep 2016 10-Q 04 Nov 2016 2016 Q3
Q2 2016 227,333,746 +114,070,122 +101% 30 Jun 2016 10-Q 02 Aug 2016 2016 Q2
Q1 2016 113,562,651 +585,413 +0.52% 31 Mar 2016 10-Q 05 May 2016 2016 Q1
Q4 2015 226,918,432 +5,047,072 +2.3% 31 Dec 2015 10-K 22 Feb 2019 2018 FY
Q3 2015 113,360,425 +2,424,745 +2.2% 30 Sep 2015 10-Q 06 Nov 2015 2015 Q3
Q2 2015 113,263,624 +2,327,944 +2.1% 30 Jun 2015 10-Q 06 Aug 2015 2015 Q2
Q1 2015 112,977,238 +2,040,056 +1.8% 31 Mar 2015 10-Q 01 May 2015 2015 Q1
Q4 2014 221,871,360 -15,978 -0.01% 31 Dec 2014 10-K 23 Feb 2018 2017 FY
Q3 2014 110,935,680 -7,989 -0.01% 30 Sep 2014 10-Q 07 Nov 2014 2014 Q3
Q2 2014 110,935,680 -7,989 -0.01% 30 Jun 2014 10-Q 07 Aug 2014 2014 Q2
Q1 2014 110,937,182 +15,167 +0.01% 31 Mar 2014 10-Q 02 May 2014 2014 Q1
Q4 2013 221,887,338 +110,899,938 +100% 31 Dec 2013 10-K 24 Feb 2017 2016 FY
Q3 2013 110,943,669 -43,731 -0.04% 30 Sep 2013 10-Q 07 Nov 2013 2013 Q3
Q2 2013 110,943,669 -32,473 -0.03% 30 Jun 2013 10-Q 02 Aug 2013 2013 Q2
Q1 2013 110,922,015 -40,074 -0.04% 31 Mar 2013 10-Q 03 May 2013 2013 Q1
Q4 2012 110,987,400 -31,421 -0.03% 31 Dec 2012 10-K 24 Feb 2016 2015 FY
Q3 2012 110,987,400 +5,889 +0.01% 30 Sep 2012 10-Q 09 Nov 2012 2012 Q3
Q2 2012 110,976,142 -3,369 -0% 30 Jun 2012 10-Q 03 Aug 2012 2012 Q2
Q1 2012 110,962,089 +19,961 +0.02% 31 Mar 2012 10-Q 04 May 2012 2012 Q1
Q4 2011 111,018,821 +124,920 +0.11% 31 Dec 2011 10-K 25 Feb 2015 2014 FY
Q3 2011 110,981,511 +126,486 +0.11% 30 Sep 2011 10-Q 03 Nov 2011 2011 Q3
Q2 2011 110,979,511 +183,696 +0.17% 30 Jun 2011 10-Q 05 Aug 2011 2011 Q2
Q1 2011 110,942,128 31 Mar 2011 10-Q 05 May 2011 2011 Q1
Q4 2010 110,893,901 31 Dec 2010 10-K 25 Feb 2014 2013 FY
Q3 2010 110,855,025 30 Sep 2010 10-Q 29 Oct 2010 2010 Q3
Q2 2010 110,795,815 30 Jun 2010 10-Q 05 Aug 2010 2010 Q2
* An asterisk sign (*) next to the value indicates that the value is likely invalid.