The sale is purely mechanical under a pre-set 10b5-1 plan, not a reaction to current conditions. No change to fundamental thesis. Monitor for any Form 4 filings to confirm actual execution; the plan covers periodic sales and should not be interpreted as a negative signal.
Price Chart
Executive Summary
Arista Networks co-founder and Chairman Andreas Bechtolsheim filed a Form 144 notice of intent to sell 411,848 shares of common stock with an aggregate market value of approximately $79.2 million, based on the filing date. The sales are part of a pre-arranged 10b5-1 trading plan adopted on February 20, 2026, and will be executed through Goldman Sachs. As a 10% stockholder and co-founder, this is a routine diversification move by a long-term insider and not a reaction to any specific event.
Key Facts
- Andreas Bechtolsheim, 10% stockholder and co-founder, filed Form 144 to sell 411,848 shares of Arista Networks common stock.
- Aggregate market value of proposed sale is approximately $79,206,607.36 based on 08/06/2026 price.
- Of the total, 300,000 shares are from The Bechtolsheim Family Trust and 111,848 shares from Andreas Bechtolsheim personally.
- The sales are made pursuant to a Rule 10b5-1 trading plan dated 02/20/2026.
- Broker for the sale is Goldman Sachs & Co. LLC.
- Proposed sale date is on or about 08/06/2026 (the filing date); shares will be sold on NYSE.
Financial Impact
Proposed sale of $79.2M in shares, representing approximately 0.03% of Arista's $248.5B market cap. Relative to Bechtolsheim's likely total holdings (as co-founder and 10%+ owner), this is a modest diversification trade.
Risk Factors
- Insider selling may attract attention from retail traders, but the structure (10b5-1 plan, scheduled diversification) mitigates signaling risk.
- Large dollar volume ($79M) could exert modest downward pressure on the stock over the execution period, but the plan likely staggers sales to minimize market impact.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0001958244-26-000493 |
| Document: 0001958244-26-000493-index.html | 0001958244-26-000493 |
| Document: 0001958244-26-000493.txt | 0001958244-26-000493 |
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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