Arista Networks: CFO Chantelle Breithaupt sold 1,224 shares

What happened Chantelle Yvette Breithaupt, senior vice president and chief financial officer, sold 1,224 shares in an open-market or private sale (code S) at $215.00 per share on Oct 06, 2026, for total proceeds of $263,160.

Key details

• Transaction date and price: Oct 06, 2026 — 1,224 shares sold at $215.00 per share (code S); proceeds $263,160.
• Filing date: Form 4 filed Oct 08, 2026.
• Shares owned after transaction: not stated in the filing.
• Footnote: F1 says the sale was effected pursuant to a Rule 10b5-1 trading plan entered by the reporting person on Dec 11, 2025 and modified on Jun 2, 2026.

Why it may matter

• The transaction reported is a sale (code S) executed under a Rule 10b5-1 trading plan per footnote F1; it is not reported as an option exercise or a gift.
  A Form 4 filing does not show why the insider traded or why the company acted.