Item 8.01 Other Events.
On March 27, 2023, Wisconsin Power and Light Company ("WPL"), a subsidiary of Alliant Energy Corporation, entered into an Underwriting Agreement (the "Underwriting Agreement") with MUFG Securities Americas Inc., KeyBanc Capital Markets Inc., TD Securities (USA) LLC and Wells Fargo Securities, LLC, as representatives of the several underwriters listed therein (the "Underwriters"), pursuant to which WPL agreed to sell, and the Underwriters agreed to purchase, subject to the terms and conditions set forth therein, $300,000,000 aggregate principal amount of WPL's 4.950% Debentures due 2033 (the "Debentures"), in a public offering (the "Offering"). The Debentures are to be issued under an Indenture dated as of June 20, 1997, between WPL and U.S. Bank Trust Company, National Association, as successor trustee (the "Trustee"), pursuant to an Officers' Certificate provided pursuant to the Indenture setting forth the terms of the Debentures (the "Certificate"). The Offering is expected to close, subject to standard closing conditions, on March 30, 2023.
The Debentures are registered under the Securities Act of 1933, as amended, pursuant to an automatic shelf registration statement on Form S-3 (Registration No. 333-251353-02) that WPL filed with the Securities and Exchange Commission (the "SEC") on December 15, 2020 (the "Registration Statement"). The Registration Statement was supplemented by a Prospectus Supplement setting forth the terms of the Debentures that WPL filed with the SEC on March 27, 2023.
This Current Report on Form 8-K is being filed for the purpose of filing exhibits to the Registration Statement relating to the public offering of the Debentures, and all such exhibits are hereby incorporated into the Registration Statement by reference. The Underwriting Agreement is filed as Exhibit 1.1 to this Form 8-K and the Certificate is filed as Exhibit 4.1 to this Form 8-K.
On March 27, 2023, WPL issued a press release announcing that it had priced the Offering. The press release is filed as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Perkins Coie LLP, counsel to WPL, has issued an opinion to WPL, dated March 30, 2023, regarding the legality of the Debentures upon issuance thereof. The opinion as to legality is filed as Exhibit 5.1 hereto.
Item 9.01 Financial Statements and Exhibits.
(d)Exhibits Exhibit No. Description 1.1 Underwriting Agreement, dated March 27, 2023, among Wisconsin Power and Light Company and the underwriters named therein. 4.1 Officers' Certificate creating the 4.950% Debentures due 2033 of Wisconsin Power and Light Company. 5.1 Opinion of Perkins Coie LLP, dated March 30, 2023, with respect to the 4.950% Debentures due 2033 of Wisconsin Power and Light Company. 23.1 Consent of Perkins Coie LLP (contained in Exhibit 5.1 hereto). 99.1 Press Release of Wisconsin Power and Light Company, dated March 27 , 2023. 104 Cover Page Interactive Data File (embedded within the Inline XBRL document).