The U.S. market remained flat over the last week but has seen an 18% increase over the past year, with earnings forecasted to grow by 16% annually. In this landscape, growth companies with high insider ownership can be appealing. Tempus AI, a healthcare technology company with a market cap of $7.92 billion, generates revenue from its Medical Labs & Research segment, amounting to $1.43 billion. It has insider ownership of 32.8% and a return on equity forecast of 26% for 2029. Tempus AI's second-quarter sales reached US$289.33 million, up from US$241.84 million the previous year, and it improved its quarterly net income to US$5.64 million from a loss last year. The company raised its full-year revenue guidance to approximately US$1.6 billion. Arista Networks, with a market cap of $215.35 billion, generates $9.71 billion in revenue from its Computer Networks segment. It has insider ownership of 16.9% and a return on equity forecast of 31% for 2029. Arista's earnings are forecasted to increase by 16.9% annually, outpacing the U.S. market average, and its revenue for Q1 2026 was US$2.71 billion, up from US$2 billi.