Arista Networks CEO Jayshree Ullal Files Form 144 to Sell $21.1M in Common Stock

Insider Filing Overview: Arista Networks, Inc. (NYSE: ANET)

Officer/Director: Jayshree Ullal (CEO and Chairperson of the Board)
Filing Date: October 7, 2026
Transaction Notice: Form 144 (Notice of Proposed Sale of Securities)

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Transaction Details

• Securities to be Sold: 96,992 shares of Common Stock
• Aggregate Market Value: $21,060,920.47 (approx. $217.14 per share)
• Approximate Sale Date: October 7, 2026
• Broker: Fidelity Brokerage Services LLC
• Acquisition Origin: Stock option exercise on September 22, 2008
• Trading Plan: Executed under a pre-scheduled Rule 10b5-1 trading plan adopted on November 14, 2025

Trust Ownership Breakdown

According to the filing remarks, the 96,992 shares originate from indirect holdings via family trusts:

• The Tarini Ullal Trust: 13,860 shares
• The Adeeti Ullal Trust: 13,860 shares
• The 2000 Ullal Family Trust: 69,272 shares

Historical Context & Prior Sales

The filing reflects significant ongoing distributions over the past three months under pre-established plans:

• 10/07/2026: 460,374 shares sold for $97,642,609.19
• 09/25/2026: 62,622 shares sold for $13,238,021.53
• 08/25/2026: 13,809 shares sold for $2,648,491.63
• 08/12/2026: 573,509 shares sold for $119,364,084.06
• 08/05/2026: 1,099,495 shares sold for $221,239,724.20
• 07/10/2026: 234,578 shares sold for $43,907,277.00
• 07/09/2026: 242,422 shares sold for $45,616,262.39

Significance

Given the scale and leadership position of Jayshree Ullal, large transactions warrant market monitoring; however, because the sale is routed through a Rule 10b5-1 trading plan established in November 2025 and represents a tiny fraction of the company's 1.26 billion shares outstanding, the direct market impact is expected to be orderly and routine.