Arista Networks Director Mark Templeton Sells $985K in Common Stock Under Rule 10b5-1 Plan

Arista Networks, Inc. ($ANET) Insider Sale Summary

• Insider: Mark B. Templeton, Director
• Transaction Date: September 8, 2026
• Filing Date: September 10, 2026
• Total Shares Sold: 5,000 shares
• Total Gross Proceeds: ~$985,787.71
• Weighted Average Sale Price: ~$197.16 per share (ranging between $194.81 and $199.38 across five tranches)

Transaction Details

1. 1,300 shares at a weighted average price of $195.27
2. 700 shares at a weighted average price of $196.20
3. 1,000 shares at a weighted average price of $197.46
4. 1,700 shares at a weighted average price of $198.44
5. 300 shares at a weighted average price of $199.32

Ownership & Context

• Post-Transaction Holdings: Mark Templeton directly retains 53,410 shares of Arista Networks common stock, alongside 75,200 shares held indirectly by a trust for which his spouse serves as trustee.
• Trading Plan: The transactions were executed pursuant to a pre-arranged Rule 10b5-1 trading plan established on June 9, 2026.
• Market Impact / Significance: Low. The disposition represents a routine, scheduled liquidation under a Rule 10b5-1 plan and accounts for a small fraction of the insider's combined direct and indirect equity position.