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NISOURCE INC.

For the period ended Sep 30, 2025. Filed Oct 29, 2025.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2025 · Filed Oct 29, 2025

NI$45.06+2.1%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Accumulated Other Comprehensive Loss

  1. Accumulated Other Comprehensive Loss

The following tables display the components of Accumulated Other Comprehensive Loss, net of tax:

(in millions)Gains and Losses on Securities(1)Gains and Losses on Cash Flow Hedges(1)Pension and OPEB Items(1)AccumulatedOtherComprehensiveLoss(1)
Balance as of June 30, 2025$(2.2)$(13.4)$(12.6)$(28.2)
Other comprehensive income before reclassifications1.3—13.815.1
Amounts reclassified from accumulated other comprehensive loss—(0.1)0.20.1
Net current-period other comprehensive income (loss)1.3(0.1)14.015.2
Balance as of September 30, 2025$(0.9)$(13.5)$1.4$(13.0)
(1)All amounts are net of tax. Amounts in parentheses indicate debits.
(in millions)Gains and Losses on Securities(1)Gains and Losses on Cash Flow Hedges(1)Pension and OPEB Items(1)AccumulatedOtherComprehensiveLoss(1)
Balance as of December 31, 2024$(4.0)$(13.2)$(13.2)$(30.4)
Other comprehensive income before reclassifications3.1—13.917.0
Amounts reclassified from accumulated other comprehensive loss—(0.3)0.70.4
Net current-period other comprehensive income (loss)3.1(0.3)14.617.4
Balance as of September 30, 2025$(0.9)$(13.5)$1.4$(13.0)

(1)All amounts are net of tax. Amounts in parentheses indicate debits.

(in millions)Gains and Losses on Securities(1)Gains and Losses on Cash Flow Hedges(1)Pension and OPEB Items(1)AccumulatedOtherComprehensiveLoss(1)
Balance as of June 30, 2024$(7.6)$(13.0)$(13.0)$(33.6)
Other comprehensive income (loss) before reclassifications3.50.4(0.1)3.8
Amounts reclassified from accumulated other comprehensive loss—(0.5)0.70.2
Net current-period other comprehensive income (loss)3.5(0.1)0.64.0
Balance as of September 30, 2024$(4.1)$(13.1)$(12.4)$(29.6)
(1)All amounts are net of tax. Amounts in parentheses indicate debits.
(in millions)Gains and Losses on Securities(1)Gains and Losses on Cash Flow Hedges(1)Pension and OPEB Items(1)AccumulatedOtherComprehensiveLoss(1)
Balance as of December 31, 2023$(7.3)$(12.8)$(13.5)$(33.6)
Other comprehensive income (loss) before reclassifications2.8—(0.1)2.7
Amounts reclassified from accumulated other comprehensive loss0.4(0.3)1.21.3
Net current-period other comprehensive income (loss)3.2(0.3)1.14.0
Balance as of September 30, 2024$(4.1)$(13.1)$(12.4)$(29.6)

(1)All amounts are net of tax. Amounts in parentheses indicate debits.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.