Tempus AI director Nadja West sold 3,000 shares of Class A Common Stock at $53.90 per share on August 14, according to a recent SEC Form 4 filing. This transaction occurred four days before the company's stock rallied 24%. The sale was executed under a 10b5-1 trading plan established by West on May 15, which allows insiders to schedule stock sales in advance. Following the sale, West retains a direct ownership stake of 34,981 shares, maintaining significant exposure to the company's performance.