Wisconsin Public Service Corp Announces $300M 4.25% Senior Notes Offering

What Happened

• Wisconsin Public Service Corporation announced on January 5, 2026 that it entered into an underwriting agreement to issue and sell $300,000,000 aggregate principal amount of Senior Notes, 4.25% Series due January 15, 2031. The company filed the related Form 8-K on January 8, 2026. The offering is being made in a registered offering under the Securities Act pursuant to a Form S-3 registration statement (No. 333-279582).

Key Details

• Aggregate principal amount: $300,000,000.
• Interest rate: 4.25% fixed.
• Maturity date: January 15, 2031.
• Underwriting agreement executed: January 5, 2026; offering registered under Form S-3 (Reg. No. 333-279582).

Why It Matters

• This transaction creates a new fixed-rate, long-term debt obligation for the company, which will affect its capital structure and future interest expense. Investors should watch for further SEC filings that disclose final pricing, net proceeds, intended use of proceeds, and any credit-rating impacts.