Arista Networks President & CTO Kenneth Duda Sells $7.84M via Rule 10b5-1 Plan

Arista Networks, Inc. ($ANET) Insider Filing Overview

On October 22, 2026, Kenneth Duda, President, Chief Technology Officer, and Director of Arista Networks, Inc., filed a Form 4 disclosing option exercises and share dispositions executed on October 20, 2026.

Key Transaction Details

• Stock Option Exercise: Exercised 17,333 non-qualified stock options at an exercise price of $14.1463 per share.
• Open Market Dispositions:
  • Direct Sales: 17,333 shares sold at weighted average prices between $177.91 and $182.79, generating gross proceeds of approximately $3.14M.
  • Children's Trust Sales: 16,000 shares sold under identical price bands, totaling approximately $2.89M.
  • Foundation Sales: 10,000 shares sold under identical price bands, totaling approximately $1.81M.
  • Combined Dispositions: 43,333 shares for aggregate proceeds of approximately $7.84M at an overall weighted average price of ~$180.91.

Context and Significance

• Rule 10b5-1 Trading Plans: All transactions were conducted pursuant to pre-established Rule 10b5-1 trading plans adopted on March 11, 2026, by Mr. Duda, for the benefit of his children, and by his 501(c) Foundation.
• Remaining Exposure: Mr. Duda maintains substantial equity exposure in Arista Networks across direct holdings (12,976 shares), trust accounts (1,154,918 shares in Children's Trust, 1,382,725 in GRATs, and 81,927 in a Family Trust), the Foundation (432,400 shares), and 121,335 vested/unvested stock options.
• Significance Level: Low, as the transactions represent routine pre-planned sales and stock option exercises pursuant to 10b5-1 plans without material change to his primary long-term beneficial ownership profile.