Oracle CEO Safra Catz was the top insider stock seller in the second quarter of 2025, according to data from Washington Service.

Catz sold stock options worth over US$1.8 billion during this period, raising her total sales for the year to US$2.5 billion.

In the second quarter, Catz sold 8.7 million shares, increasing her net worth to US$4 billion, as reported by the Bloomberg Billionaires Index.

The sales were executed under a predetermined trading plan, and she retains 1.1 million shares in Oracle.

Dell Technologies CEO Michael Dell also reported notable sales, unloading 10 million shares valued at US$1.2 billion in the same quarter.

Dell’s revenue has surged, partly due to the company’s recent re-entry into the S&P 500 Index and its emphasis on AI-powered server technology.

Amazon chair Jeff Bezos sold 3.3 million shares for US$736.7 million in June, coinciding with his wedding festivities.

This marked the first transactions under a plan initiated in March to sell up to 25 million shares by May 2026.

🔗 Source: Bloomberg

🧠 Food for thought

1️⃣ Insider selling patterns show limited predictive value compared to purchases

Unlike insider buying, which typically signals positive future performance, sales like those by Catz, Dell, and Bezos don’t consistently predict market downturns.

Research shows that insider purchases generally indicate confidence in future performance, while most sales have little predictive value for company stock price movement 1.

However, specific types of selling can be meaningful. For example, executives selling at a loss predict significantly lower future returns (an average 188 basis point decrease in six-month returns), indicating genuine negative information 1.

The timing of these executive sales during a market rebound suggests they were likely planned transactions rather than bearish signals, given that four of the top sellers (Catz, Dell, Bezos, and de Groen) were executing predetermined trading plans or option exercises.

This aligns with broader patterns showing executive sales are often motivated by personal financial planning or expiring options rather than pessimism about company prospects.