Palantir Stock Slides Again on November 21, 2025 as Insider Selling and AI Bubble Fears Hit PLTR
Palantir shares fell 3.5% to $150.28 by mid-afternoon Friday after CEO Alex Karp sold 585,000 shares worth about $96 million and an analyst issued a downgrade. The stock is down 25% from its early November high despite record quarterly results. Trading volume topped 28 million shares. Palantir remains up over 100% year-to-date, with a market cap near $371 billion.