Semtech

Semtech plunged approximately 5.1% during the regular session to $139.51, driven by market concern over recent heavy insider selling by the CEO and several executives. The stock opened 4.81% lower pre-market at $144.01 and continued to weaken intraday, hitting a low of $138.44, well below its 20-day moving average of $158.93. Despite solid Q1 2027 earnings—net profit of $26.6 million (up 37.3% YoY) on revenue of $291 million (up 15.9% YoY)—which reversed a loss in Q4 2026, the insider trading signal overshadowed the fundamental improvement. The stock remains 21.3% below its 52-week high of $177.35, though still up 85.4% YTD, with a high price-to-book ratio of 22.7x; post-market trading saw a modest recovery to $147.76, suggesting some buying interest.