Wassenaar Yvonne 4

What Happened
Yvonne Wassenaar, a director of Arista Networks (ANET), sold a total of 1,815 shares in open-market transactions on February 25, 2026, generating gross proceeds of $240,380. The sales were executed in five tranches: 70 shares @ $129.41 ($9,058); 49 shares @ $130.12 ($6,376); 357 shares @ $131.56 ($46,967); 835 shares @ $132.66 ($110,768); and 504 shares @ $133.35 ($67,211). These were disposals (sales), which are often routine rather than an explicit signal of company outlook.

Key Details

• Transaction date: February 25, 2026; Form 4 filed February 27, 2026 (timely filed within the usual 2-business-day window).
• Total shares sold: 1,815 for total proceeds of $240,380. Individual weighted-average prices shown above.
• Footnotes: trades were made pursuant to a Rule 10b5-1 trading plan adopted Nov 21, 2025 (F1). Each tranche shows a weighted-average price and a price range for the multiple executions (F2–F6); the filer offers to provide a breakdown of quantities at each price upon request.
• Shares owned after the transaction: not provided in the summary data available here.
• Transaction code: S = Sale.

Context
Sales under a pre-established 10b5-1 plan are commonly used by insiders to systematically sell shares and are generally viewed as routine rather than a direct indicator of insider sentiment. For retail investors, purchases usually carry more weight as affirmative signals; this filing documents a planned disposal of stock rather than an opportunistic purchase.