Form 4: Arista Networks Director Sells Shares Under 10b5-1 Plan

Arista Networks Director Yvonne Wassenaar sold 1,395 shares of common stock on March 16, 2026, under a pre-arranged 10b5-1 trading plan.

Summary

• Yvonne Wassenaar, a Director at Arista Networks, Inc. (ANET), disposed of a total of 1,395 shares of common stock on March 16, 2026.
• The sales were executed pursuant to a Rule 10b5-1 trading plan adopted by Ms. Wassenaar on November 21, 2025.
• The shares were sold in multiple transactions at weighted average prices ranging from $132.6904 to $135.5394 per share.
• Specifically, 264 shares were sold at a weighted average price of $132.6904, 360 shares at $133.552, 232 shares at $134.6537, and 539 shares at $135.5394.
• Following these transactions, Ms. Wassenaar directly beneficially owns 11,179 shares of Arista Networks common stock.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event, typical for directors managing personal portfolios through pre-scheduled trading plans, and not indicative of company-specific positive or negative sentiment.

Future Outlook

No forward-looking statements or guidance were provided in this filing.

Industry Context

StockSavvy.ai notes that insider sales executed under Rule 10b5-1 trading plans are a common practice for corporate executives and directors. These plans allow insiders to pre-arrange sales of company stock at a future date, providing an affirmative defense against claims of insider trading by demonstrating that the trades were not made on the basis of material non-public information. This type of transaction is generally viewed as a routine personal financial management activity rather than a signal about the company's immediate prospects.

Stakeholder Impact

• Shareholders may note a director's reduction in direct holdings, but given the execution under a 10b5-1 plan, it is generally not interpreted as a negative signal regarding the company's performance or outlook.

Key Dates

Recommendation

This Form 4 filing reports a routine insider sale executed under a pre-arranged 10b5-1 trading plan. Such transactions are typically for personal financial management and diversification, not a reflection of the company's immediate prospects. Therefore, it does not provide new information to warrant a change in investment recommendation.

Keywords

Arista Networks, ANET, Insider Trading, Form 4, Stock Sale, Yvonne Wassenaar, Director, 10b5-1 Plan