American Century Companies Inc. Reduces Oshkosh Corporation Stake

Investment firm sells nearly two million shares of heavy equipment manufacturer

Published on Mar. 2, 2026

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American Century Companies Inc. has reduced its stake in Oshkosh Corporation (NYSE: OSK) by 66.2%, selling 1,893,520 shares during the third quarter. The firm now owns 965,267 shares, or about 1.53% of the company's stock, valued at $125,195,000 at the end of the reporting period.

Why it matters

This significant reduction in American Century's Oshkosh holdings suggests a shift in the investment firm's outlook on the heavy equipment manufacturer. Oshkosh is a major player in the defense, fire and emergency, commercial construction, and industrial sectors, so changes in ownership by large institutional investors can signal broader market trends.

The details

According to a recent SEC filing, American Century Companies sold nearly two million Oshkosh shares in the third quarter, reducing its stake in the company from 2.87 million shares to just under 1 million. The investment firm cited unspecified reasons for the stock sale, which came amid a period of strong performance for Oshkosh's share price.

  • American Century Companies filed the disclosure with the SEC on March 2, 2026.
  • The share sale occurred during the third quarter of 2025.

The players

American Century Companies Inc.

A major investment management firm based in Kansas City, Missouri, that oversees over $250 billion in assets.

Oshkosh Corporation

A Wisconsin-based manufacturer of specialty trucks, military vehicles, and access equipment serving the defense, fire and emergency, commercial construction, and industrial sectors.

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The takeaway

The reduction in American Century's Oshkosh stake could signal a broader shift in investor sentiment around the heavy equipment manufacturer, though the specific reasons behind the sale remain unclear. Oshkosh's performance and outlook will likely be closely watched by the investment community in the coming quarters.