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sellModerate cluster of 310b5-1 plan

Charles H Giancarlo sold $8.6M of ANET

director at Arista Networks, Inc.. 58,000 shares at an average of $148.42, traded Sep 19, 2025, filed Sep 23, 2025.

Warning score
55
Value
$8.6M
58,000 shares
Holdings after
49,784
-116% from before
From 52-week low
+132%
low $64.37, close $149.61
From 52-week high
-2%
high $153.04, as of Sep 19, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $8.6M at market
    +25
  • Share of holdings sold
    Sold 100% of holdings
    +20
  • Cluster
    3 insiders selling within 14 days
    +15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

ANETOct 9, 2026 · close 216.74
Since filing Sep 23, 2025: +50.4%SPY +18.7% · excess +31.8%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001596532-25-000275, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 19, 2025SOpen-market sale
Common Stockindirect: Charitable Trust10b5-1
-10,737$147.34$1.6M39,263Sep 23, 2025
Sep 19, 2025SOpen-market sale
Common Stockindirect: Charitable Trust10b5-1
-20,633$148.18$3.1M18,630Sep 23, 2025
Sep 19, 2025SOpen-market sale
Common Stockindirect: Charitable Trust10b5-1
-18,458$149.31$2.8M172Sep 23, 2025
Sep 19, 2025SOpen-market sale
Common Stockindirect: Charitable Trust10b5-1
-172$149.85$26k0Sep 23, 2025
Sep 19, 2025SOpen-market sale
Common Stockindirect: by Trust10b5-1
-1,718$147.34$253k56,066Sep 23, 2025
Sep 19, 2025SOpen-market sale
Common Stockindirect: by Trust10b5-1
-3,301$148.18$489k52,765Sep 23, 2025
Sep 19, 2025SOpen-market sale
Common Stockindirect: by Trust10b5-1
-2,953$149.31$441k49,812Sep 23, 2025
Sep 19, 2025SOpen-market sale
Common Stockindirect: by Trust10b5-1
-28$149.85$4,19649,784Sep 23, 2025

Related signals

Other insiders at Arista Networks, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
45Moderate
ANETsell 310b5-1
Arista Networks, Inc.
Jayshree Ullal
CEO and Chairperson
$21M
96,992 shares
-2%
30Weak
ANETsell 310b5-1
Arista Networks, Inc.
Chantelle Yvette Breithaupt
Senior Vice President, CFO
$263k
1,224 shares
-2%
45Moderate
ANETsell 310b5-1
Arista Networks, Inc.
Jayshree Ullal
CEO and Chairperson
$98M
460,374 shares
-9%
35Weak
ANETsell 510b5-1
Arista Networks, Inc.
Mark B Templeton
director
$1.0M
5,000 shares
-9%
45Moderate
ANETsell 510b5-1
Arista Networks, Inc.
Jayshree Ullal
CEO and Chairperson
$13M
62,622 shares
-1%
45Moderate
ANETsell 410b5-1
Arista Networks, Inc.
Kenneth Duda
President and CTO
$8.8M
43,333 shares
-143%
32Weak
ANETsell 410b5-1
Arista Networks, Inc.
Andreas Bechtolsheim
owner
$60M
300,000 shares
-0%
35Weak
ANETsell 410b5-1
Arista Networks, Inc.
Mark B Templeton
director
$986k
5,000 shares
-9%
20Weak
ANETsell 210b5-1
Arista Networks, Inc.
Chantelle Yvette Breithaupt
Senior Vice President, CFO
$120k
612 shares
-1%
45Moderate
ANETsell 310b5-1
Arista Networks, Inc.
Kenneth Duda
President and CTO
$7.9M
56,000 shares
-130%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Charles H Giancarlo sold $8.6M of ANET | InsiderTell