Arista Networks CEO and Chairperson Jayshree Ullal sold 9,127 shares on Aug. 12, 2026 at an average price of $210.97, for a total value of about $1.93 million. The sale was disclosed as being made under a pre-scheduled Rule 10b5-1 trading plan, which means the trade was set up in advance and can help reduce the appearance that the decision was based on new, nonpublic information. Because Ullal is both CEO and chair, her transactions draw attention: she is closely tied to day-to-day execution and also leads the board that oversees strategy and governance. Even so, planned sales like this are often used for routine purposes such as diversification, taxes, or liquidity, and the filing itself does not indicate the reason beyond the plan structure. This sale also fits within a broader pattern of recent insider selling at ANET. Over the past 30 days, co-founder and director Andreas Bechtolsheim sold about $382,860 worth of stock on Aug. 6, followed by Ullal’s larger sale on Aug. 12. With no reported insider purchases in that window, investors may view the activity as net selling, while keeping in mind both trades were relatively modest in dollar terms for senior executives and were not described as discretionary timing decisions.