ASTS Plummet 7.43 as $610M Surge Propels It to 155th in Market Activity Amid Insider Trading Scrutiny

On September 4, 2025, AST SpaceMobile (ASTS) closed at $41.96, a 7.43% decline from the previous day’s close. The stock saw a surge in trading volume, with $610 million in turnover—a 108.51% increase from the prior session, ranking 155th in market activity. This sharp drop followed notable insider transactions involving the company’s CTO, Yao Huiwen, who bought 40,000 shares at $0.06 on September 2 before selling 16,000 shares at $48.04 the next day. Such rapid trading by a senior executive has drawn investor scrutiny, as insiders collectively own 34.15% of the stock and have executed $129,862 in purchases versus $9.98 million in sales over the past two years.

The selloff intensified as technical indicators pointed to bearish momentum. ASTS broke below its 30-day moving average of $50.12 and tested the lower Bollinger Band at $43.96, while the RSI of 36.24 signaled oversold conditions. A bearish engulfing candlestick pattern further reinforced short-term weakness, compounding concerns after the company reported a quarterly loss of $0.41 per share, missing estimates by $0.22. Insider selling, including a 4.79% reduction in CFO Andrew Johnson’s holdings, added to the downward pressure.

Options activity highlighted aggressive bearish positioning, with the ASTS20250912P41 and ASTS20250919P41 put contracts leading in volume. The 200-day average of $31.82 remains well below the current price, and key support levels at $43.96 and $44.95 are now critical for gauging the selloff’s depth. Traders are closely monitoring whether ASTS can hold above $43.96 or rebound above $45.25 to reverse the trend.

Backtest results confirm the stock’s vulnerability near pivotal technical levels. A breakdown below $43.96 could trigger further declines toward the 200-day support at $23.65. The ASTS20250912P41 put option, with a strike price of $41 and high implied volatility (83.64%), is positioned to capitalize on a sharp drop. Similarly, the ASTS20250919P41 contract offers extended exposure for a potential extended selloff. Immediate action hinges on the $43.96 support level, with options traders favoring short-side positions if this threshold is breached.