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Companies · NI · Electric & Other Services Combined · New debt · Aug 18, 2026

NiSource closes $750M debt deal, adding costly but flexible capital

$750M notes issuedpriced in
$750M principal at 6.250% initial coupon
NISOURCE INC. (NI) — what happened, in plain English, and what it means versus what the market expected.

The filing confirms a transaction the market already knew was coming. NiSource entered the underwriting agreement on August 13 and disclosed the prospectus supplement on August 14; the August 18 filing mainly confirms that the sale closed. That makes this a completion notice rather than a fresh financing surprise. 〔0〕

Financing detailTerms
Principal issued$750 million (Offering terms)
Initial coupon6.250% through April 15, 2032 (Offering terms)
Reset spreadFive-year U.S. Treasury Rate + 1.930% (Offering terms)
MaturityApril 15, 2057 (Offering terms)
First interest paymentApril 15, 2027 (Offering terms)

The economic takeaway is incremental funding, not an operating update. The notes provide $750 million for capital expenditures, working capital and repayment of existing debt, but the filing does not disclose a new project, revised financial outlook or change to operating guidance. 〔1〕

The financing is expensive but structurally flexible. NiSource pays a 6.25% initial rate, while the junior-subordinated structure lets it defer interest under specified conditions; however, doing so would restrict dividends, equity actions and payments on equal- or lower-ranking obligations. 〔2〕

Net read: in line, with no new information beyond execution. The completed issuance modestly increases financing capacity and interest obligations, but because the amount and headline terms were already disclosed before the closing filing, it does not materially reset the market’s prior expectation.

Read the original 8-K on SEC EDGAR ↗
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