Form 4: Arista Networks CTO Duda Sells Shares via 10b5-1 Plan

Arista Networks President and CTO Kenneth Duda reported the exercise of stock options and subsequent sale of common stock totaling 58,000 shares through a Rule 10b5-1 plan.

Summary

• Kenneth Duda, President and CTO, Director, and 10% Owner of Arista Networks, Inc. (ANET), reported transactions on March 17, 2026.
• Duda exercised 32,000 Non-Qualified Stock Options at an exercise price of $15.2625 per share.
• Concurrently, Duda disposed of 32,000 shares of common stock directly at weighted average prices ranging from $133.0345 to $135.9723.
• Additionally, 16,000 shares were disposed of indirectly through a Childrens' Trust at weighted average prices ranging from $133.0345 to $135.9723.
• An additional 10,000 shares were disposed of indirectly through a 501(c) Foundation at weighted average prices ranging from $133.0345 to $135.9723.
• All reported exercises and sales were executed pursuant to Rule 10b5-1 trading plans established on March 13, 2025.
• Following these transactions, Duda directly holds 12,976 shares and indirectly holds 1,095,168 shares via a Childrens' Trust, 502,400 shares via a Foundation, 702,147 shares via a Jennifer Duda Annuity Trust, 702,147 shares via a Kenneth Duda Annuity Trust, and 201,134 shares via a family trust.
• Duda retains 64,000 unexercised Non-Qualified Stock Options, with vesting scheduled monthly after June 1, 2020.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a routine insider transaction under a pre-arranged plan, which typically has a neutral impact on market sentiment as it reflects planned portfolio management rather than a reaction to new company-specific information.

Positives

• The exercise of stock options indicates that the options were in-the-money, reflecting a higher market price for Arista Networks' stock compared to the option's exercise price.

Negatives

• The significant volume of insider selling, totaling 58,000 shares across direct and indirect holdings, could be perceived negatively by some investors, even if executed under a pre-arranged plan.

Industry Context

StockSavvy.ai notes that insider sales, particularly when executed under a pre-arranged Rule 10b5-1 trading plan, are a common practice for executives to manage personal finances and diversify their portfolios. Such transactions typically do not signal a change in the company's fundamental outlook or performance, as the plan is established in advance of the sales.

Related Party Transactions

• Sales of common stock were made indirectly through a Childrens' Trust, for which Kenneth Duda serves as co-trustee.
• Sales of common stock were made indirectly through a 501(c) Foundation, for which Kenneth Duda and his spouse serve as co-trustees.
• Beneficial ownership is also reported indirectly through Jennifer Duda Annuity Trusts (spouse as trustee), Kenneth Duda Annuity Trusts (Kenneth Duda as trustee), and a family trust (Kenneth Duda as co-trustee).

Stakeholder Impact

• Shareholders may note the insider selling, but the pre-established Rule 10b5-1 plan mitigates concerns that the sales are based on new, negative material information.
• The transactions reflect a planned diversification and liquidity event for a key executive.

Key Dates

Recommendation

The reported transactions are routine insider sales executed under a pre-established Rule 10b5-1 trading plan, indicating a planned portfolio management activity rather than a change in the executive's outlook on the company's future. Therefore, it does not provide new fundamental information to alter an existing investment thesis.

Keywords

Arista Networks, ANET, Insider Trading, Form 4, Stock Sale, Executive Compensation, Kenneth Duda, CTO, Director, 10b5-1 Plan