Alliant Energy Corporation / Dividends

Declaration date	Ex date	Record date	Payment date	Amount
January 26, 1987	January 29, 1987	January 30, 1987	February 14, 1987	$0.19
April 24, 1987	April 29, 1987	April 30, 1987	May 15, 1987	$0.19
July 27, 1987	July 30, 1987	July 31, 1987	August 15, 1987	$0.195
October 26, 1987	October 29, 1987	October 30, 1987	November 14, 1987	$0.195
January 25, 1988	January 28, 1988	January 29, 1988	February 15, 1988	$0.2025
April 25, 1988	April 28, 1988	April 29, 1988	May 14, 1988	$0.81
July 25, 1988	July 28, 1988	July 29, 1988	August 15, 1988	$0.2025
October 25, 1988	October 28, 1988	October 31, 1988	November 15, 1988	$0.2025
January 25, 1989	January 30, 1989	January 31, 1989	February 15, 1989	$0.21
April 24, 1989	April 27, 1989	April 28, 1989	May 15, 1989	$0.21
July 25, 1989	July 28, 1989	July 31, 1989	August 15, 1989	$0.21
October 25, 1989	October 30, 1989	October 31, 1989	November 15, 1989	$0.21
January 25, 1990	January 30, 1990	January 31, 1990	February 15, 1990	$0.2175
April 24, 1990	April 27, 1990	April 30, 1990	May 15, 1990	$0.2175
July 25, 1990	July 30, 1990	July 31, 1990	August 15, 1990	$0.2175
October 25, 1990	October 30, 1990	October 31, 1990	November 15, 1990	$0.2175
January 25, 1991	January 30, 1991	January 31, 1991	February 15, 1991	$0.225
April 24, 1991	April 29, 1991	April 30, 1991	May 15, 1991	$0.225
July 25, 1991	July 30, 1991	July 31, 1991	August 15, 1991	$0.225
October 25, 1991	October 30, 1991	October 31, 1991	November 15, 1991	$0.225
January 27, 1992	January 30, 1992	January 31, 1992	February 15, 1992	$0.2325
April 24, 1992	April 29, 1992	April 30, 1992	May 15, 1992	$0.2325
July 27, 1992	July 30, 1992	July 31, 1992	August 15, 1992	$0.2325
October 26, 1992	October 29, 1992	October 30, 1992	November 14, 1992	$0.2325
January 25, 1993	January 28, 1993	January 29, 1993	February 13, 1993	$0.2375
April 26, 1993	April 29, 1993	April 30, 1993	May 15, 1993	$0.2375
July 26, 1993	July 29, 1993	July 30, 1993	August 14, 1993	$0.2375
October 25, 1993	October 28, 1993	October 29, 1993	November 15, 1993	$0.2375
January 25, 1994	January 28, 1994	January 31, 1994	February 15, 1994	$0.24
April 25, 1994	April 28, 1994	April 29, 1994	May 14, 1994	$0.24
July 25, 1994	July 28, 1994	July 29, 1994	August 15, 1994	$0.24
October 25, 1994	October 28, 1994	October 31, 1994	November 15, 1994	$0.24
January 25, 1995	January 30, 1995	January 31, 1995	February 15, 1995	$0.2425
April 24, 1995	April 27, 1995	April 28, 1995	May 15, 1995	$0.2425
July 27, 1995	July 28, 1995	July 31, 1995	August 15, 1995	$0.2425
October 27, 1995	October 30, 1995	October 31, 1995	November 15, 1995	$0.2425
January 31, 1996	February 1, 1996	February 2, 1996	February 15, 1996	$0.2462
April 26, 1996	April 29, 1996	April 30, 1996	May 15, 1996	$0.2462
August 1, 1996	August 2, 1996	August 5, 1996	August 15, 1996	$0.2462
October 30, 1996	October 31, 1996	November 1, 1996	November 15, 1996	$0.2462
January 29, 1997	January 30, 1997	January 31, 1997	February 15, 1997	$0.25
April 28, 1997	April 29, 1997	April 30, 1997	May 15, 1997	$0.25
July 31, 1997	August 1, 1997	August 4, 1997	August 15, 1997	$0.25
October 29, 1997	October 30, 1997	October 31, 1997	November 15, 1997	$0.25
January 22, 1998	January 23, 1998	January 26, 1998	February 14, 1998	$0.25
April 22, 1998	April 17, 1998	April 20, 1998	April 27, 1998	$0.1785
April 30, 1998	April 30, 1998	May 1, 1998	May 15, 1998	$0.0714
July 29, 1998	July 30, 1998	July 31, 1998	August 15, 1998	$0.25
October 28, 1998	October 29, 1998	October 30, 1998	November 14, 1998	$0.25
January 27, 1999	January 28, 1999	January 29, 1999	February 13, 1999	$0.25
April 28, 1999	April 29, 1999	April 30, 1999	May 15, 1999	$0.25
July 28, 1999	July 29, 1999	July 30, 1999	August 14, 1999	$0.25
October 27, 1999	October 28, 1999	October 29, 1999	November 15, 1999	$0.25
January 27, 2000	January 28, 2000	January 31, 2000	February 15, 2000	$0.25
April 26, 2000	April 27, 2000	April 28, 2000	May 15, 2000	$0.25
July 27, 2000	July 28, 2000	July 31, 2000	August 15, 2000	$0.25
October 27, 2000	October 30, 2000	October 31, 2000	November 15, 2000	$0.25
January 29, 2001	January 30, 2001	January 31, 2001	February 15, 2001	$0.25
April 26, 2001	April 27, 2001	April 30, 2001	May 15, 2001	$0.25
July 27, 2001	July 30, 2001	July 31, 2001	August 15, 2001	$0.25
October 29, 2001	October 30, 2001	October 31, 2001	November 15, 2001	$0.25
January 29, 2002	January 30, 2002	January 31, 2002	February 15, 2002	$0.25
April 26, 2002	April 29, 2002	April 30, 2002	May 15, 2002	$0.25
July 29, 2002	July 30, 2002	July 31, 2002	August 15, 2002	$0.25
October 29, 2002	October 30, 2002	October 31, 2002	November 15, 2002	$0.25
January 29, 2003	January 30, 2003	January 31, 2003	February 15, 2003	$0.125
April 28, 2003	April 29, 2003	April 30, 2003	May 15, 2003	$0.125
July 29, 2003	July 30, 2003	July 31, 2003	August 15, 2003	$0.125
October 29, 2003	October 30, 2003	October 31, 2003	November 15, 2003	$0.125
January 28, 2004	January 29, 2004	January 30, 2004	February 14, 2004	$0.125
April 28, 2004	April 29, 2004	April 30, 2004	May 15, 2004	$0.125
July 28, 2004	July 29, 2004	July 30, 2004	August 14, 2004	$0.125
October 27, 2004	October 28, 2004	October 29, 2004	November 15, 2004	$0.1315
January 27, 2005	January 28, 2005	January 31, 2005	February 15, 2005	$0.1315
April 27, 2005	April 28, 2005	April 29, 2005	May 14, 2005	$0.1315
July 27, 2005	July 28, 2005	July 29, 2005	August 15, 2005	$0.1315
October 27, 2005	October 28, 2005	October 31, 2005	November 15, 2005	$0.1315
January 27, 2006	January 30, 2006	January 31, 2006	February 15, 2006	$0.1437
April 26, 2006	April 27, 2006	April 28, 2006	May 15, 2006	$0.1437
July 27, 2006	July 28, 2006	July 31, 2006	August 15, 2006	$0.1437
October 27, 2006	October 30, 2006	October 31, 2006	November 15, 2006	$0.1437
January 29, 2007	January 30, 2007	January 31, 2007	February 15, 2007	$0.1588
April 26, 2007	April 27, 2007	April 30, 2007	May 15, 2007	$0.1588
July 27, 2007	July 30, 2007	July 31, 2007	August 15, 2007	$0.1588
October 29, 2007	October 30, 2007	October 31, 2007	November 15, 2007	$0.1588
January 29, 2008	January 30, 2008	January 31, 2008	February 15, 2008	$0.175
April 28, 2008	April 29, 2008	April 30, 2008	May 15, 2008	$0.175
July 29, 2008	July 30, 2008	July 31, 2008	August 15, 2008	$0.175
October 29, 2008	October 30, 2008	October 31, 2008	November 15, 2008	$0.175
January 28, 2009	January 29, 2009	January 30, 2009	February 13, 2009	$0.1875
April 28, 2009	April 29, 2009	April 30, 2009	May 15, 2009	$0.1875
July 29, 2009	July 30, 2009	July 31, 2009	August 14, 2009	$0.1875
October 28, 2009	October 29, 2009	October 30, 2009	November 13, 2009	$0.1875
January 27, 2010	January 28, 2010	January 29, 2010	February 12, 2010	$0.1975
April 28, 2010	April 29, 2010	April 30, 2010	May 14, 2010	$0.1975
July 28, 2010	July 29, 2010	July 30, 2010	August 13, 2010	$0.1975
October 27, 2010	October 28, 2010	October 29, 2010	November 15, 2010	$0.1975
January 27, 2011	January 28, 2011	January 31, 2011	February 15, 2011	$0.2125
April 27, 2011	April 28, 2011	April 29, 2011	May 13, 2011	$0.2125
July 27, 2011	July 28, 2011	July 29, 2011	August 15, 2011	$0.2125
October 27, 2011	October 28, 2011	October 31, 2011	November 15, 2011	$0.2125
January 27, 2012	January 30, 2012	January 31, 2012	February 15, 2012	$0.225
April 26, 2012	April 27, 2012	April 30, 2012	May 15, 2012	$0.225
July 27, 2012	July 30, 2012	July 31, 2012	August 15, 2012	$0.225
October 29, 2012	October 30, 2012	October 31, 2012	November 15, 2012	$0.45
October 31, 2012	October 30, 2012	October 31, 2012	November 15, 2012	$0.225
January 29, 2013	January 30, 2013	January 31, 2013	February 15, 2013	$0.235
April 26, 2013	April 29, 2013	April 30, 2013	May 15, 2013	$0.235
July 29, 2013	July 30, 2013	July 31, 2013	August 15, 2013	$0.235
October 29, 2013	October 30, 2013	October 31, 2013	November 15, 2013	$0.235
January 29, 2014	January 30, 2014	January 31, 2014	February 14, 2014	$0.255
April 28, 2014	April 29, 2014	April 30, 2014	May 15, 2014	$0.255
July 29, 2014	July 30, 2014	July 31, 2014	August 15, 2014	$0.255
October 29, 2014	October 30, 2014	October 31, 2014	November 14, 2014	$0.255
January 28, 2015	January 29, 2015	January 30, 2015	February 13, 2015	$0.275
April 28, 2015	April 29, 2015	April 30, 2015	May 15, 2015	$0.275
July 29, 2015	July 30, 2015	July 31, 2015	August 14, 2015	$0.275
October 28, 2015	October 29, 2015	October 30, 2015	November 13, 2015	$0.275
January 27, 2016	January 28, 2016	January 29, 2016	February 12, 2016	$0.2938
April 27, 2016	April 28, 2016	April 29, 2016	May 13, 2016	$0.2938
July 27, 2016	July 28, 2016	July 29, 2016	August 15, 2016	$0.2938
October 27, 2016	October 28, 2016	October 31, 2016	November 15, 2016	$0.2938
January 27, 2017	January 30, 2017	January 31, 2017	February 15, 2017	$0.315
April 26, 2017	April 27, 2017	April 28, 2017	May 15, 2017	$0.315
July 27, 2017	July 28, 2017	July 31, 2017	August 15, 2017	$0.315
October 30, 2017	October 30, 2017	October 31, 2017	November 15, 2017	$0.315
January 30, 2018	January 30, 2018	January 31, 2018	February 15, 2018	$0.3355
April 27, 2018	April 27, 2018	April 30, 2018	May 15, 2018	$0.335
July 30, 2018	July 30, 2018	July 31, 2018	August 15, 2018	$0.335
October 30, 2018	October 30, 2018	October 31, 2018	November 15, 2018	$0.335
January 30, 2019	January 30, 2019	January 31, 2019	February 15, 2019	$0.355
April 29, 2019	April 29, 2019	April 30, 2019	May 15, 2019	$0.355
July 30, 2019	July 30, 2019	July 31, 2019	August 15, 2019	$0.355
October 30, 2019	October 30, 2019	October 31, 2019	November 15, 2019	$0.355
January 30, 2020	January 30, 2020	January 31, 2020	February 18, 2020	$0.38
April 29, 2020	April 29, 2020	April 30, 2020	May 15, 2020	$0.38
July 30, 2020	July 30, 2020	July 31, 2020	August 17, 2020	$0.38
October 29, 2020	October 29, 2020	October 30, 2020	November 16, 2020	$0.38
January 28, 2021	January 28, 2021	January 29, 2021	February 16, 2021	$0.4025
April 29, 2021	April 29, 2021	April 30, 2021	May 17, 2021	$0.4025
July 29, 2021	July 29, 2021	July 30, 2021	August 16, 2021	$0.4025
October 29, 2021	October 29, 2021	November 1, 2021	November 15, 2021	$0.4025
January 28, 2022	January 28, 2022	January 31, 2022	February 15, 2022	$0.4275
April 28, 2022	April 28, 2022	April 29, 2022	May 16, 2022	$0.4275
July 28, 2022	July 28, 2022	July 29, 2022	August 15, 2022	$0.4275
October 28, 2022	October 28, 2022	October 31, 2022	November 15, 2022	$0.4275
January 30, 2023	January 30, 2023	January 31, 2023	February 15, 2023	$0.4525
April 27, 2023	April 27, 2023	April 28, 2023	May 15, 2023	$0.4525
July 28, 2023	July 28, 2023	July 31, 2023	August 15, 2023	$0.4525
October 30, 2023	October 30, 2023	October 31, 2023	November 15, 2023	$0.4525
January 30, 2024	January 30, 2024	January 31, 2024	February 15, 2024	$0.48
April 29, 2024	April 29, 2024	April 30, 2024	May 15, 2024	$0.48
July 31, 2024	July 30, 2024	July 31, 2024	August 15, 2024	$0.48
October 31, 2024	October 30, 2024	October 31, 2024	November 15, 2024	$0.48
January 31, 2025	January 30, 2025	January 31, 2025	February 18, 2025	$0.5075
April 30, 2025	April 29, 2025	April 30, 2025	May 15, 2025	$0.5075
July 31, 2025	July 30, 2025	July 31, 2025	August 15, 2025	$0.5075