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sellWeak10b5-1 plan

David Brian Miller sold $600k of ONTO

director at ONTO INNOVATION INC.. 2,000 shares at an average of $300.00, traded Sep 29, 2026, filed Oct 1, 2026.

Warning score
19
Value
$600k
2,000 shares
Holdings after
10,692
-16% from before
From 52-week low
+151%
low $121.34, close $304.69
From 52-week high
-19%
high $378.45, as of Sep 29, 2026

Score components

  • Role
    Director
    +15
  • Trade size
    $600k at market
    +19
  • Share of holdings sold
    Sold 16% of holdings
    +5
  • Cluster
    No other insider selling within 14 days
    0
  • 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.

ONTOOct 9, 2026 · close 294.53
Since filing Oct 1, 2026: -6.5%SPY +1.9% · excess -8.4%

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 0001233488-26-000007, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 29, 2026SOpen-market sale
Common Stock10b5-1
-2,000$300.00$600k10,69211 d ago

Related signals

Other insiders at ONTO INNOVATION INC. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
14Weak
ONTOsell10b5-1
ONTO INNOVATION INC.
Mark Slicer
Chief Financial Officer
$176k
1,100 shares
-9%

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.

David Brian Miller sold $600k of ONTO | InsiderTell