Form 4: Arista Networks CEO Jayshree Ullal Sells Shares

Arista Networks CEO Jayshree Ullal sold approximately 350,000 shares of common stock via a pre-arranged Rule 10b5-1 trading plan.

Summary

• Jayshree Ullal, CEO and Chairperson of Arista Networks, executed a series of stock sales on April 16, 2026.
• The transactions involved the sale of 350,000 shares of common stock held in various family trusts.
• Sales were executed at weighted average prices ranging from $159.20 to $160.55 per share.
• All transactions were conducted pursuant to a Rule 10b5-1 trading plan adopted on November 14, 2025.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event; while the volume of shares sold is significant, the use of a pre-planned 10b5-1 trading plan suggests standard financial management rather than a lack of confidence in the company.

Positives

• The sales were pre-planned under a Rule 10b5-1 trading plan, indicating the transactions were not based on sudden material non-public information.

Negatives

• Significant reduction in indirect beneficial ownership of Arista Networks stock by the CEO's family trusts.

Risks

• Large-scale insider selling can sometimes create negative market sentiment or downward pressure on the stock price in the short term.

Future Outlook

No specific forward-looking guidance regarding company operations was provided in this filing.

Industry Context

StockSavvy.ai notes that routine insider selling by high-level executives, particularly when executed through pre-established 10b5-1 plans, is a common practice for liquidity and estate planning and does not necessarily reflect a change in the executive's outlook on the company's long-term performance.

Comparison to Industry Standards

• The use of Rule 10b5-1 plans is the industry standard for corporate executives to sell shares while avoiding potential insider trading liability.

Related Party Transactions

• The filing discloses sales of shares held in trusts for the benefit of the reporting person's children, nephew, and niece, for which the reporting person serves as trustee or co-trustee.

Stakeholder Impact

• Shareholders may observe temporary price volatility due to the volume of shares sold, though the pre-planned nature of the sale typically mitigates long-term concerns.

Next Steps

• No future operational milestones or actions were disclosed in this filing.

Key Dates

Keywords

Arista Networks, ANET, Insider Selling, Jayshree Ullal, Rule 10b5-1, Stock Sale