GlobeNewswire Inc | May 18, 2021 07:00AM EDT

May 18, 2021

CEDAR RAPIDS, Iowa, May 18, 2021 (GLOBE NEWSWIRE) -- The Board of Directors of Alliant Energys Iowa utility, Interstate Power and Light Company (IPL), has declared dividends for its preferred stock (NASDAQ: IPLDP) shareowners of record on May 28, 2021. The dividends, which are payable on June 15, 2021, are as follows:

$0.31875 per share on the 5.1% Series D Cumulative Preferred Stock

Alliant Energy Corporation (NASDAQ: LNT) provides regulated energy service to 975,000 electric and 420,000 natural gas customers across Iowa and Wisconsin. Alliant Energy's mission is to deliver the energy solutions and exceptional service customers and communities count on safely, efficiently and responsibly. Interstate Power and Light Company and Wisconsin Power and Light Company are Alliant Energys two public utility subsidiaries. Alliant Energy is a component of the Nasdaq CRD Sustainability Index, Bloombergs 2020 Gender-Equality Index, and the S&P 500. For more information, visit alliantenergy.com and follow us on LinkedIn, Facebook, Instagram and Twitter.

Media Contact: Scott Reigstad (608) 458-3145Investor Relations Contact: Susan Gille (608) 458-3956