TickerFacts.

Alliant Energy Corp (LNT): Weighted Average Diluted Shares

Annual figures by period end, from SEC filings.

Stock splits: 2-for-1, first reflected in a filing dated 2016-08-02. Figures are as filed: per-share figures and share counts last reported before a split are on the old share basis, so changes and growth rates across a split are not shown. Splits are read from the filings' own restatements, so a share conversion in a merger or reorganization shows up the same way.

257.80M
Year ended 2025-12-31
+0.9%
3-year compound annual growth
+0.7%
5-year compound annual growth
2008-12-31: 110.31M2009-12-31: 110.35M2010-12-31: 110.52M2011-12-31: 110.68M2012-12-31: 110.77M2017-12-31: 229.70M2018-12-31: 233.60M2019-12-31: 239.00M2020-12-31: 248.70M2021-12-31: 250.70M2022-12-31: 251.20M2023-12-31: 253.30M2024-12-31: 256.80M2025-12-31: 257.80M257.80M
2008-12-31 Weighted Average Diluted Shares (shares) 2025-12-31

Paler bars were last filed before a stock split, on the old share basis.

Period endedWeighted Average Diluted SharesChange YoYSource filing
2025-12-31257.80M+0.4%2026-02-20, From 2025-01-01
2024-12-31256.80M+1.4%2026-02-20, From 2024-01-01
2023-12-31253.30M+0.8%2026-02-20, From 2023-01-01
2022-12-31251.20M+0.2%2025-02-21, From 2022-01-01
2021-12-31250.70M+0.8%2024-02-16, From 2021-01-01
2020-12-31248.70M+4.1%2023-02-24, From 2020-01-01
2019-12-31239.00M+2.3%2022-02-18, From 2019-01-01
2018-12-31233.60M+1.7%2021-02-19, From 2018-01-01
2017-12-31229.70Mn/c2020-02-21, From 2017-01-01
No annual figure between 2012-12-31 and 2017-12-31.
2012-12-31110.77M+0.1%2013-02-26, From 2012-01-01
2011-12-31110.68M+0.1%2013-02-26, From 2011-01-01
2010-12-31110.52M+0.2%2013-02-26, From 2010-01-01
2009-12-31110.35M0.0%2012-02-27, From 2009-01-01
2008-12-31110.31Mn/a2011-02-28, From 2008-01-01