Alliant Energy Corporation (LNT)

Historical Shares Outstanding

Current Count

260.9M

Financial Fundamentals

LNT • Quarterly Data • 5Y View

Share Count History

Date	Shares Out. (M)	Change (M)	Change %
2026-06-30	260.9	2.1	+0.81%
2026-03-31	258.8	0.0	0.00%
2025-12-31	258.8	1.0	+0.39%
2025-09-30	257.8	0.5	+0.19%
2025-06-30	257.3	0.1	+0.04%
2025-03-31	257.2	0.0	0.00%
2024-12-31	257.2	0.3	+0.12%
2024-09-30	256.9	0.2	+0.08%
2024-06-30	256.7	0.5	+0.20%
2024-03-31	256.2	0.2	+0.08%
2023-12-31	256.0	2.2	+0.87%
2023-09-30	253.8	1.9	+0.75%
2023-06-30	251.9	0.5	+0.20%
2023-03-31	251.4	0.0	0.00%
2022-12-31	251.4	0.1	+0.04%
2022-09-30	251.3	0.2	+0.08%
2022-06-30	251.1	0.2	+0.08%
2022-03-31	250.9	-0.2	-0.08%
2021-12-31	251.1	0.3	+0.12%
2021-09-30	250.8	0.2	+0.08%
2021-06-30	250.6	0.2	+0.08%
2021-03-31	250.4	0.1	+0.04%
2020-12-31	250.3	0.3	+0.12%
2020-09-30	250.0	0.2	+0.08%
2020-06-30	249.8	5.2	+2.13%
2020-03-31	244.6	3.2	+1.33%
2019-12-31	241.4	1.5	+0.63%
2019-09-30	239.9	1.8	+0.76%
2019-06-30	238.1	1.5	+0.63%
2019-03-31	236.6	0.6	+0.25%
2018-12-31	236.0	0.8	+0.34%
2018-09-30	235.2	3.2	+1.38%
2018-06-30	232.0	0.6	+0.26%
2018-03-31	231.4	0.2	+0.09%
2017-12-31	231.2	0.2	+0.09%
2017-09-30	231.0	2.0	+0.87%
2017-06-30	229.0	1.4	+0.62%
2017-03-31	227.6	0.2	+0.09%
2016-12-31	227.4	0.2	+0.09%
2016-09-30	227.2	0.2	+0.09%
2016-06-30	227.0	0.2	+0.09%
2016-03-31	226.8	0.2	+0.09%
2015-12-31	226.6	0.2	+0.09%
2015-09-30	226.4	0.2	+0.09%
2015-06-30	226.2	4.0	+1.80%
2015-03-31	222.2	0.6	+0.27%
2014-12-31	221.6	0.0	0.00%
2014-09-30	221.6	0.0	0.00%
2014-06-30	221.6	0.0	0.00%
2014-03-31	221.6	0.0	0.00%
2013-12-31	221.6	0.0	0.00%
2013-09-30	221.6	-0.3	-0.13%
2013-06-30	221.9	0.3	+0.13%
2013-03-31	221.6	0.0	+0.02%
2012-12-31	221.6	0.0	+0.00%
2012-09-30	221.6	0.0	+0.01%
2012-06-30	221.5	0.1	+0.03%
2012-03-31	221.5	0.1	+0.06%
2011-12-31	221.4	-0.0	-0.02%
2011-09-30	221.4	-0.6	-0.26%
2011-06-30	222.0	0.7	+0.31%
2011-03-31	221.3	0.2	+0.10%
2010-12-31	221.0	-0.0	-0.02%
2010-09-30	221.1	0.1	+0.05%
2010-06-30	221.0	0.1	+0.04%
2010-03-31	220.9	0.2	+0.09%
2009-12-31	220.7	0.1	+0.06%
2009-09-30	220.6	-0.1	-0.06%
2009-06-30	220.7	0.1	+0.04%
2009-03-31	220.6	-0.0	-0.00%
2008-12-31	220.6	-0.0	-0.00%
2008-09-30	220.6	-0.0	-0.01%
2008-06-30	220.6	0.0	+0.02%
2008-03-31	220.6	-300.4	-57.66%
2007-12-31	521.0	298.9	+134.57%
2007-09-30	222.1	-3.9	-1.74%
2007-06-30	226.1	-5.5	-2.36%
2007-03-31	231.5	0.7	+0.29%
2006-12-31	230.8	-4.2	-1.77%
2006-09-30	235.0	-0.4	-0.16%
2006-06-30	235.4	0.7	+0.29%
2006-03-31	234.7	1.1	+0.47%
2005-12-31	233.6	-0.5	-0.21%
2005-09-30	234.1	1.5	+0.65%
2005-06-30	232.6	-0.2	-0.07%
2005-03-31	232.7	5.3	+2.35%
2004-12-31	227.4	-2.0	-0.87%
2004-09-30	229.4	4.4	+1.98%
2004-06-30	225.0	1.8	+0.81%
2004-03-31	223.2	20.1	+9.88%
2003-12-31	203.1	-15.8	-7.21%
2003-09-30	218.9	32.8	+17.64%
2003-06-30	186.0	1.0	+0.52%
2003-03-31	185.1	-0.4	-0.21%
2002-12-31	185.5	3.0	+1.62%
2002-09-30	182.5	1.4	+0.78%
2002-06-30	181.1	1.0	+0.55%
2002-03-31	180.1	3.0	+1.67%
2001-12-31	177.1	18.4	+11.62%
2001-09-30	158.7	-2.0	-1.24%
2001-06-30	160.7	1.7	+1.08%
2001-03-31	159.0	0.0	0.00%
2000-12-31	159.0	0.7	+0.41%
2000-09-30	158.3	0.3	+0.19%
2000-06-30	158.0	0.0	+0.02%
2000-03-31	158.0	0.0	0.00%
1999-12-31	158.0	0.8	+0.54%
1999-09-30	157.1	0.7	+0.46%
1999-06-30	156.4	0.9	+0.56%
1999-03-31	155.6	1.1	+0.72%
1998-12-31	154.4	0.1	+0.08%
1998-09-30	154.3	-5.7	-3.54%
1998-06-30	160.0	98.4	+159.83%
1998-03-31	61.6	-0.4	-0.62%
1997-12-31	62.0	0.4	+0.59%
1997-09-30	61.6	0.2	+0.31%
1997-06-30	61.4	0.0	0.00%
1997-03-31	61.4	0.0	0.00%
1996-12-31	61.4	-0.5	-0.88%
1996-09-30	62.0	—	—