Northern Trust Corp Increases Stakes Across Multiple Companies in Fourth Quarter

CHICAGO, Ill. — Northern Trust Corp has increased its investments in several companies during the fourth quarter of 2025, as reported in its recent filings with the Securities and Exchange Commission (SEC).

Among the notable changes, Northern Trust raised its stake in Redwire Co. by 18.2%, owning 243,977 shares valued at approximately $4.02 million. The company’s growth in shares comes after acquiring an additional 37,522 shares during the reporting period.

Other institutional investors also showed interest. Quarry LP bought a new stake in Redwire valued at $33,000, while Summit Investment Advisors Inc. increased its holdings by 64.2%, owning 2,382 shares worth $39,000 after acquiring 931 additional shares.

Flushing Financial Co. also saw a rise in Northern Trust’s investment, increasing by 3.4% to 256,126 shares valued at $3.66 million. Other hedge funds, including US Bancorp, also increased their positions in Flushing Financial during the fourth quarter.

Meanwhile, Northern Trust Corp expanded its position in BigCommerce Holdings, Inc. by 8.4%, acquiring 662,877 shares valued at $4.06 million. Institutional investors now own 79.21% of BigCommerce shares.

In the biotechnology space, Northern Trust raised its stake in Tourmaline Bio, Inc. by 7.1%, owning 204,786 shares valued at $4.15 million. The recent surge in these investments highlights the growing interest in both technology and healthcare sectors.

As of Friday, Redwire shares opened at $12.69, Flushing Financial at $12.16, BigCommerce at $4.96, and Tourmaline Bio at $15.27. Analysts continue to track these companies for their potential in the market.