Breithaupt Chantelle Yvette 4

What Happened

• Chantelle Breithaupt, Senior Vice President and Chief Financial Officer of Arista Networks, sold 2,448 shares in an open-market transaction on 2026-05-26 at $157.00 per share, generating proceeds of approximately $384,336. This was a sale (not a purchase) and therefore often reflects routine liquidity rather than a bullish signal.

Key Details

• Transaction date and price: 2026-05-26, 2,448 shares at $157.00 each.
• Total value: about $384,336.
• Shares owned after transaction: Not disclosed in the information provided in this summary / not stated in the filing excerpt provided.
• Footnote: The sale was effected pursuant to a Rule 10b5-1 trading plan established by Ms. Breithaupt on December 11, 2025.
• Filing/timeliness: Form filed 2026-05-28 (trade date 2026-05-26); appears to be filed within the SEC’s two-business-day Form 4 window and is not indicated as late.
• Transaction code: S (Sale), executed as open-market sale.

Context

• Sales under a pre-established 10b5-1 plan are generally automatic trades set up in advance and do not necessarily reflect the insider’s current view of the company. For retail investors, insider purchases tend to be more informative about insider sentiment than routine sales for liquidity or diversification.