SEC Filing Analysis: Arista Networks, Inc. (ANET)

Executive Summary

• Trading Significance: Low
• Key Takeaway: Director Yvonne Wassenaar acquired 971 shares through the routine vesting of Restricted Stock Units (RSUs), a standard component of executive compensation.
• Market Impact: Neutral. The transaction is non-discretionary, pre-scheduled, and immaterial in value relative to the company's large market capitalization.

Company Information

Field	Value
Company	Arista Networks, Inc.
Ticker Symbol	ANET
CIK	0001596532
Industry	Computer Communications Equipment

Insider Information

Field	Value
Name	Wassenaar Yvonne
CIK	0001707744
Title/Position	null
Relationship	Director

Transaction Details

Field	Value
Form Type	4
Transaction Date	2025-11-20
Transaction Code	M (Exercise/Vesting of Derivative)
Security Type	Common Stock
Shares Involved	971
Price Per Share	$0.00
Total Value	$0
Shares Owned After	13,418
Ownership Type	Direct

Financial Impact Assessment

Transaction Materiality

Metric	Value
Transaction Value	$0
% of Market Cap	0.0%
Shares Transacted	971
% of Shares Outstanding	Not Available
Post-Transaction Ownership	13,418 shares
Materiality Assessment	Low

Impact Evaluation

• Market Cap Context: Arista Networks is a large-cap company with a market capitalization of $165.43 billion. The transaction value, reported as $0, is economically immaterial and has no impact on the company's valuation.
• Ownership Concentration: The insider's post-transaction holding of 13,418 shares is a minor stake. Without shares outstanding data, a precise percentage cannot be calculated, but it is presumed to be very small.
• Dilution Impact: This transaction represents the settlement of previously granted RSUs, so the dilutive effect was already anticipated by the market at the time of the grant. The vesting itself is a neutral event.
• Transaction Significance: The transaction is a routine, automated part of a compensation plan. It does not reflect a discretionary investment decision by the insider and therefore holds no signaling value.

Market Impact Analysis

Stock Impact Prediction

• Direction: Neutral
• Reasoning: The market does not typically react to scheduled RSU vestings, as they are non-discretionary and do not provide new information about an insider's view of the company's future prospects.

Volume & Sentiment

• Expected Volume Impact: None. This is not an open-market transaction.
• Sentiment Indicator: Neutral. The filing confirms the execution of a standard compensation plan.

Additional Context

Transaction Notes

• Special Circumstances: The transaction involves the conversion of Restricted Stock Units into Common Stock upon meeting vesting conditions. The RSUs were originally granted on May 30, 2025, with a quarterly vesting schedule, as detailed in the filing's footnotes. This event is one of those scheduled vestings.