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. ($ANET), filed Form 144 indicating an intention to sell 24,000 shares of Common Stock with an estimated aggregate market value of $4,390,800 (approx. $182.95 per share). The proposed transaction is scheduled to be executed through J.P. Morgan Securities LLC under a pre-established Rule 10b5-1 trading plan adopted on March 11, 2026.

Key Filing Details

• Seller Account / Beneficial Owner: Molly Hsu-Mei Duda 2017 Trust (Kenneth Duda as Trustee)
• Shares to be Sold: 24,000 shares
• Aggregate Market Value: $4,390,800
• Issuer Shares Outstanding: 1,261,224,648 shares
• Approximate Sale Date: October 20, 2026
• Securities Acquired: Originally distributed from a Grantor Annuity Trust on June 10, 2024

Prior 3 Months Trading History

The reporting owner and associated trust accounts have conducted periodic scheduled dispositions over the preceding 3 months:

• Kenneth Duda: 17,333 shares on August 20, 2026 ($3.21M) and 17,333 shares on September 21, 2026 ($3.53M)
• Molly Hsu-Mei Duda 2017 Trust: 8,000 shares on August 20, 2026 ($1.48M) and 8,000 shares on September 21, 2026 ($1.63M)
• Sophie Hsu-Tsen Duda 2017 Trust: 8,000 shares on August 20, 2026 ($1.48M) and 8,000 shares on September 21, 2026 ($1.63M)
• Foundation for Truth, Justice, and Compassion: 10,000 shares on August 20, 2026 ($1.85M) and 10,000 shares on September 21, 2026 ($2.03M)

Significance

This proposed sale represents routine liquidity under a 10b5-1 trading plan and constitutes a very minor percentage (<0.01%) of the company's 1.26 billion outstanding shares.