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ONTO

ONTO INNOVATION (ONTO) stock: insider trades, news & valuation

Net selling
Close · Oct 9, 2026 $294.53 +0.6% on the day +115.6% over 12 months 52-week range $121.34 – $378.45

Share price and insider trades

ONTO closeInsider buyInsider sale
100200300400NovDecJan 2026FebMarAprMayJunJulAugSepOctSold $302,300 on 2026-08-21 · Susan D LynchSold $600,000 on 2026-09-29 · David Brian Miller
Bought, 12 months$0
Sold, 12 months$902K
Insiders buying0
Insiders selling2

ONTO INNOVATION insider trading at a glance (Oct 9, 2026): in the past 12 months, 0 insiders bought $0 and 2 sold $902K of ONTO stock on the open market.

ONTO insider buying and selling by quarter

Open-market purchases (green, above the line) and sales (red, below), by trade date.

Q3 2026: $902K sold (2 trades)Q3 2026Q4 2026
QuarterBoughtPurchasesSoldSales
Q4 2026—0—0
Q3 2026—0$902K2

Valuation, profit and volume

P/E (trailing)n/aSector median —
Market value— 
Profit margin—Revenue growth —
Volume vs. 50-day0.8×Last 5 sessions
Insiders' paper profit—On all tracked purchases —

Summary

Over the past 12 months, 0 ONTO INNOVATION INC. insiders reported open-market purchases totaling $0, while 2 insiders reported sales totaling $902K. Among insiders with enough purchase history to measure, Susan D Lynch (Director) has the highest Insider Score at 33. 2 of 2 recorded sales were made under pre-scheduled Rule 10b5-1 trading plans, which are usually less informative than discretionary sales.

Insider transactions

Open-market purchases and sales.

Filed Insider Type Shares Price Value Since Score
Oct 1SEC David Brian MillerDirector Sell Plan 2,00010,692 held (−16%) $300.00 $600K -1.8% —
Aug 25SEC Susan D LynchDirector Sell Plan 1,0002,684 held (−27%) $302.30 $302K -2.6% 33

Insiders at ONTO INNOVATION INC.

InsiderBoughtSoldLast filingScore
David Brian MillerDirector — $600K Oct 1, 2026 —
Susan D LynchDirector — $302K Aug 25, 2026 33

ONTO stock: common questions

Are ONTO INNOVATION INC. insiders buying ONTO stock?

In the past 12 months, 0 insiders reported open-market purchases of ONTO worth $0.

Are ONTO INNOVATION INC. insiders selling ONTO stock?

2 insiders reported sales worth $902K over the same period.

Where does this data come from?

Every transaction comes from Form 4 filings that insiders must submit to the SEC within two business days of a trade. We pull them from SEC EDGAR every night.

What is ONTO's 52-week range?

Over the past year ONTO has traded between $121.34 and $378.45. It last closed at $294.53 on Oct 9, 2026.