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CIK 0000704532 · Large accelerated filer

ONTO INNOVATION INC.

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Ticker
ONTO
Exchange
NYSE
Industry
Measuring & Controlling Devices, NEC
FY end
Dec 26
Incorporated
DE
Entity type
operating
EIN
942276314
Phone
9782536200
Business address
16 JONSPIN ROAD, WILMINGTON, MA, 01887
Former names
NANOMETRICS INC
Open-market buys, last 90 days
$0
in 0 filings
Open-market sales, last 90 days
$902,300
in 2 filings, $902K under 10b5-1 plans

Net −$902,300. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.

Pace of trading Bought Sold

Who's trading

90 days

  1. MILLER DAVID BRIAN −$600K Director sold 16% of stake
  2. Lynch Susan D −$302K Director sold 27% of stake

Reading 100 more Form 4s from the SEC; this list fills in as they're read.

Date Insider Transaction Shares Price Value Owned after
2026-03-01 OH Yoon Ah SVP, Gen Counsel & Corp Sec Option exercise +724 20,223
2026-03-01 OH Yoon Ah SVP, Gen Counsel & Corp Sec Shares withheld for taxes −307 $215.89 $66K 19,916
2026-03-01 OH Yoon Ah SVP, Gen Counsel & Corp Sec Shares withheld for taxes −267 $215.89 $58K 19,649
2026-03-01 OH Yoon Ah SVP, Gen Counsel & Corp Sec Option exercise · Performance Stock Unit −941 0
2026-03-01 Plisinski Michael P Chief Executive Officer Option exercise +4,597 172,652
2026-03-01 Plisinski Michael P Chief Executive Officer Shares withheld for taxes −2,222 $215.89 $480K 170,430
2026-03-01 Plisinski Michael P Chief Executive Officer Shares withheld for taxes −1,925 $215.89 $416K 168,505
2026-03-01 Plisinski Michael P Chief Executive Officer Option exercise · Performance Stock Unit −5,971 0
2026-02-14 OH Yoon Ah SVP, Gen Counsel & Corp Sec Option exercise +3,084 21,094
2026-02-14 OH Yoon Ah SVP, Gen Counsel & Corp Sec Shares withheld for taxes −1,094 $217.23 $238K 20,000
2026-02-14 OH Yoon Ah SVP, Gen Counsel & Corp Sec Shares withheld for taxes −501 $217.23 $109K 19,499
2026-02-14 OH Yoon Ah SVP, Gen Counsel & Corp Sec Option exercise · Performance Stock Unit −1,977 0
2026-02-14 Plisinski Michael P Chief Executive Officer Option exercise +18,445 180,606
2026-02-14 Plisinski Michael P Chief Executive Officer Shares withheld for taxes −8,919 $217.23 $1.9M 171,687
2026-02-14 Plisinski Michael P Chief Executive Officer Shares withheld for taxes −3,632 $217.23 $789K 168,055
2026-02-14 Plisinski Michael P Chief Executive Officer Option exercise · Performance Stock Unit −11,824 0
2025-12-24 Plisinski Michael P Chief Executive Officer Gift −25,000 162,161
2025-12-02 Dolev Ido EVP, Prod Solutions Grp Shares withheld for taxes −3,183 $154.01 $490K 23,915
2025-10-03 YALDAEI RAMIL Chief Operating Officer Shares withheld for taxes −594 $143.71 $85K 11,342
2025-09-02 ROBERTS BRIAN K Chief Financial Officer Grant or award +21,175 21,175

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