Capital International Investors Boosts Stake in NiSource

Institutional investor increases ownership in utility company by over 15%

Mar. 11, 2026 at 8:24am

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Capital International Investors, a major institutional investor, has increased its stake in NiSource, Inc. (NYSE:NI) by 15.1% during the third quarter, according to a recent SEC filing. The firm now owns approximately 8.1 million shares, or 1.7% of the utility provider's outstanding stock, valued at over $352 million.

Why it matters

This significant increase in ownership by a large institutional investor like Capital International Investors signals confidence in NiSource's long-term prospects. As a major utility serving customers across several states, NiSource's performance is closely watched by the investment community.

The details

According to the SEC filing, Capital International Investors acquired an additional 1,065,591 shares of NiSource during the third quarter, bringing its total stake to 8,136,157 shares. This represents approximately 1.7% of the company's outstanding shares. The investment firm cited NiSource's stable utility operations and growth potential as reasons for boosting its position in the company.

  • Capital International Investors increased its NiSource stake during the third quarter of 2026.

The players

Capital International Investors

A major institutional investment firm that manages over $2 trillion in assets globally.

NiSource, Inc.

A publicly traded energy holding company that owns and operates regulated local gas and electric utilities in the United States.

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The takeaway

This investment by a prominent institutional investor underscores the market's positive outlook on NiSource's future as a leading utility provider. The increased stake signals that Capital International Investors sees significant value and growth potential in the company's regulated energy operations.