Nvidia, Palantir, and Broadcom Issue $4.6 Billion Alert Impacting Wall Street Dynamics

Key Points

• The AI sector, valued in trillions, is heavily influenced by Nvidia, Palantir Technologies, and Broadcom.

• Insiders from these companies have executed over $4.6 billion in net stock sales in the past year.

• Valuation metrics indicate that this AI trio is historically expensive, raising concerns about potential bubbles.

Nvidia, Palantir Technologies, and Broadcom have emerged as key players in the burgeoning AI market, with Nvidia becoming the first public company to surpass a market valuation of $5 trillion in October 2025. Palantir’s stock has surged 2,100% since the end of 2022, while Broadcom joined the trillion-dollar valuation club in December 2024.

According to Form 4 filings up to April 28, 2026, insiders at these companies engaged in substantial net selling: Nvidia at $2.4 billion, Palantir at $1.06 billion, and Broadcom at $1.14 billion, signaling a lack of confidence amid high price-to-sales ratios—Nvidia at 24, Broadcom at 28, and Palantir at a staggering 81.