Alliant Energy Corporation (NASDAQ: LNT) has scheduled its fourth quarter and year-end 2025 earnings release for Thursday, February 19^th, after market close. A conference call to review the fourth quarter and year-end 2025 results is scheduled for Friday, February 20^th at 9 a.m. CT.

Alliant Energy will webcast the event live at www.alliantenergy.com/investors. The call is open to the public and will be hosted by Lisa Barton, President and CEO; and Robert Durian, Executive Vice President and CFO. Individuals who would like to participate in the conference call can do so by dialing (800) 549-8228 (Toll Free – North America) or (646) 564-2877 (International). The conference ID is 89157.

An archive of the webcast will be available on the company’s website at www.alliantenergy.com/investors.

Alliant Energy Corporation (NASDAQ: LNT) provides regulated energy service to approximately 1 million electric and 430,000 natural gas customers across Iowa and Wisconsin. Alliant Energy's mission is to deliver energy solutions and exceptional service customers and communities count on – safely, efficiently and responsibly. Interstate Power and Light Company (IPL) and Wisconsin Power and Light Company (WPL) are Alliant Energy's two public energy companies. Alliant Energy is a component of Bloomberg’s Gender-Equality Index and the S&P 500. For more information, visit alliantenergy.com and follow Alliant Energy on LinkedIn, Facebook, Instagram and X.

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