Ambiq Micro's stock plummeted 5.20% during intraday trading on Tuesday, reflecting negative sentiment toward the semiconductor company.

The decline follows reports of significant insider selling activity at Ambiq Micro, with top executives cashing in their shares through a massive stock sell-off. Such insider transactions often signal to investors that company insiders may lack confidence in near-term prospects.

Additionally, the stock faced headwinds from broader sector weakness, as chip and storage shares fell across the market during the trading session. This sector-wide decline contributed to the downward pressure on Ambiq Micro's share price.