Is Tempus AI Stock a Buy After Its CEO Sold 250,000 Shares?

Tempus AI CEO Eric Lefkofsky sold 250,000 shares worth $10.5 million on July 28, 2026, reducing his stake by 4% through a pre-scheduled trading plan established in March. Despite the sale, Lefkofsky retains approximately 6.5 million shares. The article suggests this represents routine portfolio management rather than a loss of confidence, noting the company's strong Q2 2026 performance with 20% YoY revenue growth and 31% oncology volume growth, plus a strategic $1.5 billion acquisition of Personalis.