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

Arista Networks Director Charles H. Giancarlo sold 7,000 shares of common stock on December 1, 2025, through a pre-arranged 10b5-1 trading plan.

Summary

• Charles H. Giancarlo, a Director at Arista Networks, Inc. (ANET), reported the sale of 7,000 shares of common stock.
• The transactions occurred on December 1, 2025, and were executed under a Rule 10b5-1 trading plan established on June 12, 2025.
• The shares were sold in three separate transactions at weighted average prices of $126.928 (564 shares), $127.9277 (4,552 shares), and $128.5834 (2,884 shares).
• Following these transactions, Mr. Giancarlo directly beneficially owns 221,578 shares and indirectly owns 25,784 shares through a family trust.

Sentiment

Score: 5

Explanation: The sale of shares by a director, while reducing insider ownership, was conducted under a pre-arranged 10b5-1 trading plan, which typically indicates a scheduled transaction rather than a reaction to new material information. This makes the sentiment neutral to slightly negative.

Positives

• NA

Negatives

• The reduction in insider ownership, even if pre-planned, can be perceived negatively by some investors.

Risks

• NA

Future Outlook

No specific future outlook or guidance is provided in this insider transaction report.

Industry Context

This filing is specific to an individual director's stock transactions and does not provide broader industry context or trends.

Related Party Transactions

• Sale of 7,000 shares of common stock by Director Charles H. Giancarlo to the open market.

Stakeholder Impact

• Shareholders may view the reduction in insider ownership as a slight negative signal, although mitigated by the 10b5-1 plan.

Key Dates

Recommendation

The sale by a director, while reducing insider ownership, was conducted under a pre-arranged 10b5-1 trading plan. This suggests the transaction was scheduled in advance and not necessarily indicative of a change in the director's outlook on the company's future performance. Therefore, it does not warrant an immediate change in investment recommendation.

Keywords

Arista Networks, ANET, Insider Trading, Form 4, Stock Sale, Director Transaction, 10b5-1 Plan, Charles Giancarlo