Arista Networks Officer Kenneth Duda Files Form 144 to Sell $4.39M in Common Stock

Executive Summary

On October 20, 2026, Kenneth Duda, an Officer of Arista Networks, Inc. (NYSE: ANET), filed SEC Form 144 providing notice of intent to sell 24,000 shares of common stock with an aggregate market value of approximately $4,390,800. The proposed sale is executed through J.P. Morgan Securities LLC.

Transaction Details

• Filer: Kenneth Duda
• Position: Officer
• Securities to be Sold: 24,000 shares of Common Stock
• Aggregate Market Value: $4,390,800 (~$182.95 per share)
• Approximate Sale Date: October 20, 2026
• Source/Acquisition: Grantor Annuity Trust distribution acquired on June 10, 2024
• Ownership Structure: Per filing remarks, the shares will be sold indirectly by the Sophie Hsu-Tsen Duda 2017 Trust, with Kenneth Duda acting as Trustee.
• Pre-Scheduled Trading Plan: The transaction is scheduled under a Rule 10b5-1 trading plan established on March 11, 2026.

Historical Context & Market Impact

The notice also details consistent selling over the prior three months across family trusts and a charitable foundation affiliated with Kenneth Duda, totaling over $16.7M in gross proceeds between August and September 2026. Given that the transaction represents a negligible fraction of the 1,261,224,648 shares outstanding and is conducted pursuant to a pre-arranged 10b5-1 plan, it represents routine portfolio diversification and carries Low trading significance.