This is a routine 10b5-1 plan sale by the co-founder, not a discretionary signal. The plan was adopted months ago (Feb 2026), and the sale is pre-scheduled. Monitor for actual execution via Form 4 filings, but no immediate trading action warranted. The stock's strong analyst consensus (91% bullish) and recent insider selling pattern (2 sells totaling $2.1M in 30d) suggest this is part of normal portfolio diversification.
Price Chart
Executive Summary
Arista Networks co-founder and Chairman Andreas Bechtolsheim filed a Form 144 to sell 205,000 shares worth approximately $31.6 million, executed under a Rule 10b5-1 trading plan adopted on February 20, 2026. The sale is part of a pre-arranged plan and represents a modest portion of his likely holdings, but the dollar amount is material at current market cap of $187B.
Key Facts
- Insider: Andreas Bechtolsheim (co-founder, Chairman, 10% stockholder)
- Shares to sell: 205,000 shares of common stock
- Estimated value: $31,576,150 (based on filing date)
- Trading plan: Rule 10b5-1 plan adopted on February 20, 2026
- Broker: Goldman Sachs & Co. LLC
- Shares acquired from 2017-2019 via RSU compensation
- Sale to be executed from the Bechtolsheim Family Trust
Financial Impact
$31.6 million proposed sale by co-founder, ~0.017% of market cap
Risk Factors
- If the 10b5-1 plan was adopted near a price peak, it could indicate the insider views current valuation as full
- Large insider sales, even under 10b5-1, can create overhang sentiment if they become frequent
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0001958244-26-000312 |
| Document: 0001958244-26-000312-index.html | 0001958244-26-000312 |
| Document: 0001958244-26-000312.txt | 0001958244-26-000312 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 10, 2026 21d ago | Insider Cluster | $199.59 $199.39 | ▼ −0.10% | ▲ +0.12% | $207.40 (+3.91%) |
Sep 3, 2026 28d ago | Insider Cluster | $193.78 $187.81 | ▼ −3.08% | ▼ −1.87% | $207.40 (+7.03%) |
Aug 31, 2026 4w ago | Insider Cluster | $189.26 $192.93 | ▲ +1.94% | ▲ +1.86% | $207.40 (+9.58%) |
Aug 31, 2026 4w ago | Insider Cluster | $189.26 $192.93 | ▲ +1.94% | ▲ +1.86% | $207.40 (+9.58%) |
Aug 27, 2026 5w ago | Insider Cluster | $195.38 $193.78 | ▼ −0.82% | ▼ −0.93% | $207.40 (+6.15%) |
Aug 25, 2026 5w ago | Insider Cluster | $202.25 $186.10 | ▼ −7.99% | ▼ −7.87% | $207.40 (+2.55%) |
Aug 14, 2026 6w ago | Insider Cluster | $201.80 $188.15 | ▼ −6.76% | ▼ −5.57% | $207.40 (+2.78%) |
Aug 10, 2026 7w ago | Insider Cluster | $197.85 $193.18 | ▼ −2.36% | ▼ −1.96% | $207.40 (+4.83%) |
Aug 7, 2026 7w ago | Insider Cluster | $191.52 $201.80 | ▲ +5.37% | ▲ +5.41% | $207.40 (+8.29%) |
Aug 6, 2026 8w ago | 144 | $188.67 $198.82 | ▲ +5.38% | ▲ +4.98% | $207.40 (+9.93%) |
US Market Status
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