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Alliant Energy Corp. engages in the provision of regulated electricity and natural gas service to natural gas customers in the Midwest through its two public utility subsidiaries. It operates through the Utility and ATC Holdings, Non-Utility, Parent, and Other segments. The Utility segment includes the operations of IPL and WPL, which primarily serve retail customers in Iowa and Wisconsin. The ATC Holdings, Non-Utility, Parent, and Other segment refers to the operations of AEF and its subsidiaries, Corporate Services, the Alliant Energy parent company, and any Alliant Energy parent company consolidating adjustments. The company was founded in 1981 and is headquartered in Madison, WI.
URL http://www.alliantenergy.com
Investor Relations URL https://investors.alliantenergy.com/overview/default.aspx
HQ State/Province Wisconsin
Sector Utilities
Industry Electric Utilities
Next Earnings Release Feb. 19, 2026 (est.)
Last Earnings Release Nov. 06, 2025
Next Ex-Dividend Date N/A
Last Ex-Dividend Date Oct. 31, 2025

Profile

Alliant Energy Corp. engages in the provision of regulated electricity and natural gas service to natural gas customers in the Midwest through its two public utility subsidiaries. It operates through the Utility and ATC Holdings, Non-Utility, Parent, and Other segments. The Utility segment includes the operations of IPL and WPL, which primarily serve retail customers in Iowa and Wisconsin. The ATC Holdings, Non-Utility, Parent, and Other segment refers to the operations of AEF and its subsidiaries, Corporate Services, the Alliant Energy parent company, and any Alliant Energy parent company consolidating adjustments. The company was founded in 1981 and is headquartered in Madison, WI.
URL http://www.alliantenergy.com
Investor Relations URL https://investors.alliantenergy.com/overview/default.aspx
HQ State/Province Wisconsin
Sector Utilities
Industry Electric Utilities
Next Earnings Release Feb. 19, 2026 (est.)
Last Earnings Release Nov. 06, 2025
Next Ex-Dividend Date N/A
Last Ex-Dividend Date Oct. 31, 2025