SCHEDULE: Vanguard Discloses 5.64% Stake in NiSource

Vanguard Portfolio Management has reported a beneficial ownership of 5.64% in NiSource Inc. common stock as of March 31, 2026.

Summary

• Vanguard Portfolio Management, along with its affiliates Vanguard Fiduciary Trust Company and Vanguard Global Advisers, LLC, now beneficially owns 27,038,810 shares of NiSource Inc. common stock.
• This holding represents 5.64% of the class of securities.
• The filing indicates that Vanguard Portfolio Management has sole dispositive power over these shares.
• The reporting date for this ownership stake is March 31, 2026.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral filing, as it is a routine disclosure of beneficial ownership by an institutional investor and does not contain operational or financial performance information about NiSource Inc.

Positives

• Vanguard, a major institutional investor, has a significant stake in NiSource, which can be seen as a vote of confidence in the company's long-term prospects.
• The filing clearly outlines Vanguard's beneficial ownership, providing transparency to the market.

Future Outlook

This filing does not contain forward-looking statements or guidance from NiSource Inc. It solely reports Vanguard's ownership stake.

Industry Context

StockSavvy.ai notes that a Schedule 13G filing by a large institutional investor like Vanguard, indicating a significant ownership percentage (over 5%), is a common event in the energy utility sector. Such filings often signal sustained interest or a strategic allocation by the investor, though they do not necessarily imply active control or a change in management.

Stakeholder Impact

• Shareholders: The filing provides transparency regarding a significant institutional investor's stake, which may influence market perception and trading activity.
• Management: The filing does not directly impact NiSource's management but confirms Vanguard's position as a substantial shareholder.

Key Dates

Keywords

NiSource Inc, Vanguard Portfolio Management, Schedule 13G, Beneficial Ownership, Common Stock, SEC Filing, Institutional Investor