USA Rare Earth Inc. (USAR) experienced a significant intraday decline on Tuesday, plummeting 8.81% during the trading session as selling pressure intensified.

The sharp drop was primarily driven by concerns over a major shareholder's advancing reduction plan, as indicated by a recent amendment to a statement of changes in beneficial ownership. This continued overhang of potential share sales has weighed heavily on market sentiment, overshadowing the company's positive recent fundamentals.

Despite USA Rare Earth reporting better-than-expected Q1 results and securing a substantial grant for its Round Top project, the broader weakness in the Diversified Metals & Mining sector contributed to the downward pressure on the stock price.