Jayshree Ullal sells Arista shares at a weighted average of $217.14

A Form 4 filed on October 9 shows CEO Jayshree Ullal selling Arista common stock on October 7 at a weighted-average price of $217.14 per share. The sales were made under a Rule 10b5-1 trading plan adopted on November 14, 2025. The sales came on the day Arista unveiled its rack-scale AI portfolio.

• Trade date: October 7, 2026
• Weighted-average price $217.14; trades between $217.00 and $217.18
• Rule 10b5-1 plan adopted November 14, 2025