Entity Common Stock, Shares Outstanding of ALLIANT ENERGY CORP from 30 Jun 2010 to 31 Jan 2026

Taxonomy & unit
dei: shares
Description
Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.
Summary
ALLIANT ENERGY CORP quarterly Entity Common Stock, Shares Outstanding in shares history and change rate from 30 Jun 2010 to 31 Jan 2026.
  • ALLIANT ENERGY CORP Entity Common Stock, Shares Outstanding for the quarter ending 31 Jan 2026 was 257,140,829, a 0.18% increase year-over-year.
Source SEC data
View on sec.gov
Entity Common Stock, Shares Outstanding, Quarterly (shares)
Entity Common Stock, Shares Outstanding, YoY Quarterly Change (%)

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

Period Value YoY Chg Change % Date Report Filed Fiscal Year Fiscal Period
Q4 2025 257,140,829 +448,448 +0.18% 31 Jan 2026 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 256,692,381 +592,088 +0.23% 31 Jan 2025 10-K 21 Feb 2025 2024 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 256,100,293 +4,962,771 +2% 31 Jan 2024 10-K 16 Feb 2024 2023 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 251,137,522 +658,841 +0.26% 31 Jan 2023 10-K 24 Feb 2023 2022 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 250,478,681 +597,631 +0.24% 31 Jan 2022 10-K 18 Feb 2022 2021 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 249,881,050 +4,850,031 +2% 31 Jan 2021 10-K 19 Feb 2021 2020 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 245,031,019 +8,956,544 +3.8% 31 Jan 2020 10-K 21 Feb 2020 2019 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 236,074,475 +4,718,139 +2% 31 Jan 2019 10-K 22 Feb 2019 2018 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 231,356,336 +3,669,006 +1.6% 31 Jan 2018 10-K 23 Feb 2018 2017 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 227,687,330 +114,221,831 +101% 31 Jan 2017 10-K 24 Feb 2017 2016 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 113,465,499 +2,529,819 +2.3% 29 Jan 2016 10-K 24 Feb 2016 2015 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 110,935,680 -7,989 -0.01% 30 Jan 2015 10-K 25 Feb 2015 2014 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 110,943,669 -47,255 -0.04% 31 Jan 2014 10-K 25 Feb 2014 2013 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 31 Mar 2013 10-Q 03 May 2013 2013 Q1
Q4 2012 110,990,924 31 Jan 2013 10-K 26 Feb 2013 2012 FY
Q3 2012 110,987,400 30 Sep 2012 10-Q 09 Nov 2012 2012 Q3
Q2 2012 110,976,142 30 Jun 2012 10-Q 03 Aug 2012 2012 Q2
Q1 2011 110,942,128 31 Mar 2011 10-Q 05 May 2011 2011 Q1
Q4 2010 110,881,189 31 Jan 2011 10-K 28 Feb 2011 2010 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.