Arista Networks 10% Owner Andreas Bechtolsheim Sells $59.7M in Stock Under 10b5-1 Plan

Transaction Overview

On September 17, 2026, Andreas Bechtolsheim, a 10% beneficial owner and co-founder of Arista Networks, Inc. ($ANET), sold 300,000 shares of common stock held indirectly through a family trust. The sales generated aggregate gross proceeds of approximately $59.69 million at a volume-weighted average price of $198.95 per share (with individual execution batches ranging from $192.98 to $204.84).

Filing Details & Context

• 10b5-1 Trading Plan: The transactions were executed in accordance with a pre-established Rule 10b5-1 trading plan adopted on February 20, 2026.
• Ownership Impact: Following the disposition of 300,000 shares, the reporting person continues to beneficially own 180,543,048 shares through the family trust. The transaction reduced the trust's holding by approximately 0.17%, leaving an overwhelmingly large equity position intact.
• Significance Assessment: While the headline dollar figure of ~$59.7 million is substantial, the trading significance is rated Medium because the sales were conducted pursuant to a standard Rule 10b5-1 schedule and represent an immaterial fraction of Bechtolsheim's multi-billion-dollar holding in Arista Networks.