US corporate insiders sold $77.6 billion worth of stock in the first half of 2026, marking a 20% increase from the same period a year ago and the second-fastest pace of insider selling in more than two decades [1, 2, 3, 4]. The last time insiders sold stock at a higher rate was in 2021, amid the pandemic-driven stimulus market peak [1, 2, 3, 4].

While insiders offloaded shares aggressively, their purchases remained subdued. They acquired just $6.9 billion in stock during H1 2026, barely above the seven-year low of $6.7 billion recorded in the first half of 2025 [1, 2, 3, 4].

This cautious stance comes despite the S&P 500 rallying 10% year to date in 2026 [1, 2, 3, 4]. Analysts at EPFR noted that "insider activity suggests executives are not especially eager to increase their exposure at current valuations," and that "insiders remain reluctant to increase personal equity exposure, even as equity markets have continued to advance" [1]. The EPFR analyst team added in Chinese, "這種行為清楚表明,在目前的市場高估值水準下,企業內部人士們完全不想增加對自家股票的曝險。即使股市持續走高,他們對加碼個人持股依然抱持懷疑與抗拒" [3].

Concerns grow among traders about the rapid rally in chipmakers, high levels of AI-related spending, and the potential market saturation from new AI IPOs, which may be contributing to insiders’ reluctance to buy [1, 2, 3, 4].

Reports confirming the $77.6 billion insider selling figure emerged on July 17, 2026 [1, 2, 3, 4].

The coming months will show whether insiders change their stance amid ongoing market developments and fluctuations in the tech sector. For now, their cautious approach persists despite the broader equity gains.