Form 4: Arista Networks CFO Executes Planned Stock Sale

Arista Networks CFO Chantelle Breithaupt sold 8,890 shares of common stock under a pre-established Rule 10b5-1 trading plan.

Summary

• Chantelle Breithaupt, Senior Vice President and CFO of Arista Networks, Inc., sold 8,890 shares of common stock.
• The transaction occurred on April 14, 2026, at a weighted average price of $155.0241 per share.
• Following this transaction, the reporting person retains beneficial ownership of 60,734 shares of Arista Networks common stock.
• The sale was executed pursuant to a Rule 10b5-1 trading plan adopted on December 11, 2025.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event, as the sale was pre-planned and represents a routine personal financial management action by the CFO.

Positives

• The transaction was conducted under a pre-arranged Rule 10b5-1 trading plan, which is a standard mechanism for executives to sell shares without triggering concerns regarding insider trading based on non-public information.

Negatives

• The sale represents a reduction in the executive's direct equity stake in the company.

Risks

• None identified; this is a routine disclosure of an executive's personal financial transaction.

Future Outlook

Not applicable; this is a retrospective disclosure of an executive's personal equity transaction.

Industry Context

StockSavvy.ai notes that executive stock sales under 10b5-1 plans are common in the technology sector and generally do not signal a change in corporate strategy or outlook, as they are scheduled well in advance.

Comparison to Industry Standards

• The use of Rule 10b5-1 plans is the industry standard for C-suite executives at major technology firms like Cisco, Juniper Networks, and Arista to manage personal liquidity while maintaining regulatory compliance.

Stakeholder Impact

• Minimal impact on shareholders as the sale was executed via a pre-planned trading program.

Next Steps

• No further action required; this is a completed disclosure.

Key Dates

Keywords

Arista Networks, ANET, Insider Trading, Form 4, CFO, Stock Sale, Rule 10b5-1