The Motley Fool·2026-02-26 10:06Core Insights - The "Magnificent Seven" companies, including Nvidia, Apple, Alphabet, Microsoft, Amazon, Meta Platforms, and Tesla, have been pivotal in driving the stock market higher, particularly due to advancements in artificial intelligence [1][4] - However, these companies are collectively signaling a concerning trend with over $8.4 billion in net stock sales by insiders over the past year [4][10] Insider Trading Activity - Insiders at the Magnificent Seven have been significant net sellers of their company's shares, with the exception of Tesla, where CEO Elon Musk purchased approximately $1 billion in shares [5][10] - The total net selling across these companies amounts to $8,414,225,611, with Nvidia leading at $2,249,988,017 and Amazon following with $5,724,146,695 [10] - Notably, there has been a lack of insider buying in major companies like Nvidia, Apple, Amazon, and Meta Platforms, raising potential concerns for investors [12][13] Market Context - The insider trading data indicates that while selling may not always be negative, the absence of insider buying amidst a historically expensive stock market could be a red flag [9][12] - Insiders at Microsoft and Alphabet have made minimal purchases, totaling $3.4 million and $5 million respectively, which is relatively low compared to the selling activity [13]