American Century Companies Inc. Cuts Stake in Knife River Corporation

Institutional investor reduces position in construction materials firm by 30.4%

Published on Mar. 7, 2026

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American Century Companies Inc., an institutional investor, has reduced its stake in Knife River Corporation, a leading integrated construction materials and contracting company in the western United States. According to a recent SEC filing, the firm cut its position in Knife River by 30.4% in the third quarter, selling 204,190 shares.

Why it matters

This move by a major institutional investor could signal a shift in sentiment around Knife River's stock. As a key player in the construction materials industry, changes in Knife River's ownership structure are closely watched by analysts and investors alike.

The details

American Century Companies Inc. now owns 467,146 shares of Knife River, representing approximately 0.82% of the company's outstanding stock. The firm cited the sale of 204,190 shares as the reason for the 30.4% reduction in its position. Knife River is a diversified construction materials and contracting company, producing and supplying aggregates, asphalt mix, ready-mixed concrete, and other heavy construction materials used in highway, commercial, and residential projects.

  • American Century Companies Inc. filed the Form 13F disclosing the stake reduction in the third quarter of 2026.

The players

American Century Companies Inc.

An institutional investor and asset management firm.

Knife River Corporation

A leading integrated construction materials and contracting company in the western United States.

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The takeaway

The reduction in American Century Companies Inc.'s stake in Knife River Corporation could signal a shift in investor sentiment around the construction materials firm. However, without further details or commentary from the institutional investor, it's difficult to determine the specific reasons behind the move. Analysts and investors will likely continue to monitor Knife River's ownership structure and performance in the coming quarters.