Andreas Bechtolsheim Sells 279,000+ Arista Networks Shares via 10b5-1 Plan

Andreas Bechtolsheim, co-founder and 10% owner of Arista Networks, sold 279,000+ shares of company common stock on July 14, 2026, through a pre-arranged Rule 10b5-1 trading plan. The sales were executed in multiple transactions across various price ranges from $175.69 to $185.44 per share, generating approximately $50 million in proceeds. Following the transactions, Bechtolsheim's indirect holdings through a family trust decreased to 181.7 million shares, while he maintains direct ownership of 111,848 shares. The sales were conducted pursuant to a trading plan established on February 20, 2026, which provides legal protection against insider trading allegations. This filing represents a significant insider transaction but follows established regulatory procedures for planned stock sales by company insiders.