Arista Networks, Inc. (ANET) insider trading
No open-market insider purchases of Arista Networks, Inc. are on record; 9 open-market sales are.
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Insider purchases
No open-market purchases on record.
Insider sales
9 open-market sales on record
| Filed | Insider | Sold |
|---|---|---|
| Oct 22 Form 4 (opens sec.gov) |
Kenneth DudaPresident · planned (10b5-1) | $7.8M 43,333 at $180.91 · 1% of holdings |
| Oct 13 Form 4 (opens sec.gov) |
Jayshree UllalCEO · planned (10b5-1) | $34.4M 158,543 at $217.09 · 1% of holdings |
| Oct 9 Form 4 (opens sec.gov) |
Jayshree UllalCEO · planned (10b5-1) | $21.1M 96,992 at $217.14 · 0% of holdings |
| Oct 8 Form 4 (opens sec.gov) |
Jayshree UllalCEO · planned (10b5-1) | $97.6M 460,374 at $212.09 · 2% of holdings |
| Oct 8 Form 4 (opens sec.gov) |
Chantelle Yvette BreithauptCFO · planned (10b5-1) | $263k 1,224 at $215.00 · 2% of holdings |
| Oct 5 Form 4 (opens sec.gov) |
Mark B. TempletonDirector · planned (10b5-1) | $1.0M 5,000 at $204.37 · 4% of holdings |
| Sep 29 Form 4 (opens sec.gov) |
Jayshree UllalCEO · planned (10b5-1) | $13.2M 62,622 at $211.40 · 0% of holdings |
| Sep 23 Form 4 (opens sec.gov) |
Kenneth DudaPresident · planned (10b5-1) | $8.8M 43,333 at $203.50 · 1% of holdings |
| Sep 21 Form 4 (opens sec.gov) |
Andreas Bechtolsheim10% owner · planned (10b5-1) | $59.7M 300,000 at $198.95 · 0% of holdings |
Most insider sales are planned in advance or made for personal reasons, so a sale says less than a buy.
ANET trades reported by members of Congress
| Reported | Member | Trade | Amount |
|---|---|---|---|
| Jul 21 |  Alan ArmstrongR-OK · Senate116 days after the trade | Buy | $1K–$15K |
Members of Congress report trades up to 45 days later, in dollar ranges. Every member's trades.
Planned insider sales of ANET (Form 144)
| Filed | Insider | To sell |
|---|---|---|
| Oct 30 Form 144 | Andreas Bechtolsheim10% Stockholder · 10b5-1 plan | $45.2M 267,892 shares from Oct 30 |
| Oct 20 Form 144 | Kenneth DudaOfficer · 10b5-1 plan | $4.4M 24,000 shares from Oct 20 |
| Oct 20 Form 144 | Kenneth DudaOfficer · 10b5-1 plan | $4.4M 24,000 shares from Oct 20 |
| Oct 20 Form 144 | Kenneth DudaOfficer · 10b5-1 plan | $5.5M 30,000 shares from Oct 20 |
| Oct 20 Form 144 | Kenneth DudaOfficer · 10b5-1 plan | $9.5M 51,999 shares from Oct 20 |
A Form 144 is filed before an insider sells restricted or control shares; the Form 4 reports the sale once made.
Questions
Are insiders buying ANET stock?
Not recently: no open-market purchases were filed in the last 90 days.
Who bought ANET stock most recently?
No insider has bought ANET on the open market in the filings on record.
How does InsiderBeacon score an insider buy?
Out of 100, from who bought, how much their stake grew, the size of the trade, whether other insiders bought within ten days, where the price sat in its 52-week range, and whether it was a first or a routine buy. The score is fixed when the filing arrives. The formula and the research behind it.
Data as of Oct 22, 2026, from SEC EDGAR Form 4 filings: open-market purchases (code P) of $25,000 or more, and open-market sales. Every row links to its filing. Scores summarise what a filing says (how the score works); outcomes are hypothetical, from the first close after the filing, and past results don't predict future ones. Disclaimer