The company said its subsidiary Wisconsin Power and Light Company (WPL) entered into an underwriting agreement with the representatives of the underwriters on December 2, 2025 and agreed to sell $300,000,000 in principal amount of its 5.700% Debentures due 2055 in a public offering.

8-KOther EventsFiled Dec 5, 2025Period of report Dec 2, 2025Summary published (UTC) Oct 16, 2026

Key points

AI summary

The company said its subsidiary Wisconsin Power and Light Company (WPL) entered into an underwriting agreement with the representatives of the underwriters on December 2, 2025 and agreed to sell $300,000,000 in principal amount of its 5.700% Debentures due 2055 in a public offering.
The company said the Debentures mature on December 15, 2055, and that WPL plans to use the net proceeds to reduce its outstanding commercial paper and for general corporate purposes.
The company said the Debentures will be issued on June 20, 1997 under an indenture, and that the offering is expected to close on December 5, 2025, subject to customary closing conditions.
The company said Mizuho Securities USA LLC, Wells Fargo Securities, LLC, BofA Securities, Inc. and MUFG Securities Americas Inc. are joint book-running managers, and that the Debentures were registered under an automatic shelf registration statement on Form S-3 filed on December 15, 2023.

Summary

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Analysis scope · Filing body and confirmed press-release exhibitWe analyzed the filing body and confirmed exhibits. This is not a review of other exhibits, investor presentations or the full earnings call.

WPL prices $300,000,000 public offering of 5.700% Debentures due 2055

The company said its subsidiary Wisconsin Power and Light Company (WPL) entered into an underwriting agreement with the representatives of the underwriters on December 2, 2025 and agreed to sell $300,000,000 in principal amount of its 5.700% Debentures due 2055 in a public offering.

Source · Based on the filing body and exhibits

Debentures maturity date and use of net proceeds

The company said the Debentures mature on December 15, 2055, and that WPL plans to use the net proceeds to reduce its outstanding commercial paper and for general corporate purposes.

Source · Based on the filing body and exhibits

Indenture basis for issuance and expected closing date

The company said the Debentures will be issued on June 20, 1997 under an indenture, and that the offering is expected to close on December 5, 2025, subject to customary closing conditions.

Source · Based on the filing body and exhibits

Co-managers and Form S-3 shelf registration basis

The company said Mizuho Securities USA LLC, Wells Fargo Securities, LLC, BofA Securities, Inc. and MUFG Securities Americas Inc. are joint book-running managers, and that the Debentures were registered under an automatic shelf registration statement on Form S-3 filed on December 15, 2023.

Source · Based on the filing body and exhibits

AI summarized the filing and translated the summary into English; it may differ from the original. For reference only, not investment advice. AI translated the published Korean report into English. Figures are copied as filed, not recalculated.

Original filing

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