Ampco-Pittsburgh shares rise 10.61% intraday after Louis Berkman Investment Co acquires 93,000 shares as 10% owner and director.

Ampco-Pittsburgh surged 10.61% intraday after Louis Berkman Investment Co, a 10% owner and director of the company, purchased 93,000 shares of common stock on November 17, 2025, at a weighted average price of $2.67. The $248,310 transaction increased the firm’s ownership stake to 3,127,792 shares. The purchase, disclosed via an SEC Form 4 filing, signaled insider confidence in the company’s near-term prospects, aligning with the stock’s sharp intraday rally. The move followed no other publicly reported news, making the insider buying the most likely catalyst for the upward price action.