Arista Networks CEO Jayshree Ullal Files Form 144 to Sell $13.2M in Common Stock

Executive Summary

On September 25, 2026, Arista Networks, Inc. CEO and Director Jayshree Ullal filed a Form 144 notice of proposed sale covering 62,622 shares of Common Stock, with an estimated market value of $13,238,021.53 (~$211.40 per share).

Key Transaction Details

• Broker: Fidelity Brokerage Services LLC
• Securities to be Sold: 62,622 Common Stock shares
• Aggregate Market Value: $13,238,021.53
• Acquisition Source: Stock Option Exercise from Issuer on September 22, 2008
• Plan Details: The sale is being conducted pursuant to a Rule 10b5-1 trading plan adopted on November 14, 2025.
• Ownership Structure: Per the filing remarks, the proposed disposition includes:
  • 8,948 shares from The Tarini Ullal Trust
  • 8,948 shares from The Adeeti Ullal Trust
  • 44,726 shares from The 2000 Ullal Family Trust

Past 3-Month Selling Activity

Prior to this notice, significant selling activity took place over the past 3 months under the reporting person's account:

• 07/09/2026: 242,422 shares ($45,616,262.39)
• 07/10/2026: 234,578 shares ($43,907,277.00)
• 08/05/2026: 1,099,495 shares ($221,239,724.20)
• 08/12/2026: 573,509 shares ($119,364,084.06)
• 08/25/2026: 13,809 shares ($2,648,491.63)

Impact and Significance

While the dollar value of $13.2M is substantial, the transaction is rated Medium significance because it is executed under an established Rule 10b5-1 trading plan adopted nearly ten months prior. The sale represents a negligible fraction of Arista's 1.26 billion shares outstanding and reflects routine estate planning and liquidity management.