Gamco Investors Sells Stake in Ampco-Pittsburgh Corporation

Investment firm reduces ownership in industrial products company by over 40%

Published on Mar. 9, 2026

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Gamco Investors INC. ET AL has reduced its stake in Ampco-Pittsburgh Corporation (NYSE:AP) by 42.6%, according to a recent SEC filing. The investment firm previously owned 2,384,210 shares, or 11.74%, of the industrial products company, but has now sold 1,766,854 shares.

Why it matters

This significant reduction in ownership by a major institutional investor could signal a shift in market sentiment towards Ampco-Pittsburgh. The company's stock has seen volatility in recent quarters, and this move by Gamco Investors may influence how other investors view the company's prospects.

The details

According to the SEC filing, Gamco Investors sold the 1,766,854 shares of Ampco-Pittsburgh during the third quarter. This reduced the firm's total ownership stake in the company to 2,384,210 shares, or 11.74% of the company's outstanding stock. Ampco-Pittsburgh is an industrial products manufacturer that produces custom-designed forged rolls, grinding rolls, and specialty bars for the steel and metal processing industries, as well as precision couplings, gears, and die components for other industrial sectors.

  • Gamco Investors sold the shares during the third quarter of the year.
  • The SEC filing disclosing the transaction was made on March 9, 2026.

The players

Gamco Investors INC. ET AL

An investment management firm that previously owned a significant stake in Ampco-Pittsburgh Corporation.

Ampco-Pittsburgh Corporation

A U.S.-based specialty metals manufacturer that produces cast and forged components for a range of industrial markets.

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The takeaway

This reduction in ownership by a major institutional investor like Gamco Investors could signal a shift in market sentiment towards Ampco-Pittsburgh. Investors will be closely watching the company's performance and any further changes in its shareholder base in the coming quarters.