Wisconsin Power and Light Company Prices Public Offering of Debentures

Core Points - Wisconsin Power and Light Company (WPL), a subsidiary of Alliant Energy Corporation, has priced a public offering of $300 million in 5.700% debentures due in 2055 [1] - The net proceeds from the offering will be used to reduce outstanding commercial paper and for general corporate purposes [1] - The offering is expected to close on December 5, 2025, subject to customary closing conditions [1] Offering Details - The debentures will mature on December 15, 2055 [1] - The offering was marketed by a group of underwriters including Mizuho Securities USA LLC, Wells Fargo Securities, LLC, BofA Securities, Inc., and MUFG Securities Americas Inc. as joint book-running managers [2] - Additional co-managers include Academy Securities, Inc., PNC Capital Markets LLC, and U.S. Bancorp Investments, Inc. [2] Regulatory Information - The offering is made through a prospectus supplement and accompanying prospectus as part of a shelf registration statement filed with the Securities and Exchange Commission [3] - Copies of the prospectus can be obtained from the underwriters or the SEC's website [3] Company Background - Alliant Energy Corporation's Wisconsin utility subsidiary, WPL, operates under the trade name of Alliant Energy [5] - WPL is based in Madison, Wisconsin [5]