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ONTO INNOVATION INC.

ONTO·NYSE·United States United States·Insider activity
$304.40
-9.31 (-2.97%)
Close · Oct 7, 2026 · Close Prices from Tiingo.com
ONTO
Insider purchases and sales on the price
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
ONTOS&P 500 (rebased)
Insider BuyInsider SellForm 144 · planned sale
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair

In the last 180 days, ONTO insiders filed 0 purchases ($0) and 2 sales ($902K) on the open market, by 2 insiders. Newest filing Oct 1, 2026 (7 days ago).

Net Insider Buying by Quarter

Shares bought (+) or sold (−) on the open market by ONTO insiders · Form 4 · last two years
-100.0K-50.0K050.0K100.0K2025 Q1: -86.1K2025 Q12025 Q2: 02025 Q22025 Q3: 02025 Q32025 Q4: 02025 Q42026 Q1: 02026 Q12026 Q2: 02026 Q22026 Q3: -3,0002026 Q32026 Q4: 02026 Q4

On Record

$0Purchases · 180 days
$902KSales · 180 days
139Open-market transactions on record
2Insiders filing · 180 days

Purchases (code P) and sales (code S) of ONTO common stock reported on Form 4, with Form 5 annual catch-ups. Grants, option exercises, gifts and tax withholding are not shown. Dollars are shares × the stated price; a price outside anything the stock traded at that day is withheld (n/c).

Insider Transactions

139 on record · newest trade first
AllPurchasesSalesOfficers & directors
InsiderTypeSharesPriceValueHeld afterTradedFiled
MILLER DAVID BRIANDirector · Director Sale −2,000 $300.00 $600K10.7Kdirect Sep 29, 2026Oct 1, 2026 Form 4 ↗
Lynch Susan DDirector · Director Sale −1,000 $302.30 $302K2,684direct Aug 21, 2026Aug 25, 2026 Form 4 ↗
Vedula SrinivasSVP, Customer Success Sale −238 $169.58 $40K15.5Kdirect Feb 13, 2025Feb 18, 2025 Form 4 ↗
Plisinski Michael PCEO · Director Sale −35.0K $219.19 $7.7M150.5Kdirect Jan 21, 2025Jan 22, 2025 Form 4 ↗
Plisinski Michael PCEO · Director Sale −100 $212.11 $21K185.5Kdirect Jan 16, 2025Jan 21, 2025 Form 4 ↗
Plisinski Michael PCEO · Director Sale −29.9K $211.24 $6.3M185.6Kdirect Jan 16, 2025Jan 21, 2025 Form 4 ↗
Vedula SrinivasSVP, Customer Success Sale −827 $205.00 $170K15.2Kdirect Jan 15, 2025Jan 16, 2025 Form 4 ↗
Plisinski Michael PCEO · Director Sale −1,732 $201.26 $349K215.5Kdirect Jan 14, 2025Jan 16, 2025 Form 4 ↗
Plisinski Michael PCEO · Director Sale −18.3K $200.09 $3.7M217.2Kdirect Jan 14, 2025Jan 16, 2025 Form 4 ↗
Slicer MarkChief Financial Officer Sale −1,100 $160.41 $176K10.9Kdirect Nov 15, 2024Nov 18, 2024 Form 4 ↗
Vedula SrinivasSVP, Customer Success Sale −1,275 $207.24 $264K16.1Kdirect Sep 3, 2024Sep 4, 2024 Form 4 ↗
Vedula SrinivasSVP, Customer Success Sale −1,486 $213.40 $317K17.4Kdirect Jun 10, 2024Jun 11, 2024 Form 4 ↗
Slicer MarkChief Financial Officer Sale −519 $217.17 $113K12.0Kdirect Jun 7, 2024Jun 10, 2024 Form 4 ↗
Slicer MarkChief Financial Officer Sale −519 $221.21 $115K12.6Kdirect Jun 6, 2024Jun 10, 2024 Form 4 ↗
Plisinski Michael PCEO · Director Sale −2,914 $178.16 $519K235.5Kdirect Mar 20, 2024Mar 22, 2024 Form 4 ↗
Plisinski Michael PCEO · Director Sale −1,816 $177.04 $322K238.4Kdirect Mar 20, 2024Mar 22, 2024 Form 4 ↗
Plisinski Michael PCEO · Director Sale −22.6K $176.00 $4.0M240.2Kdirect Mar 20, 2024Mar 22, 2024 Form 4 ↗
Plisinski Michael PCEO · Director Sale −2,060 $174.79 $360K262.8Kdirect Mar 20, 2024Mar 22, 2024 Form 4 ↗
Plisinski Michael PCEO · Director Sale −6,270 $173.96 $1.1M264.9Kdirect Mar 20, 2024Mar 22, 2024 Form 4 ↗
Plisinski Michael PCEO · Director Sale −4,344 $172.83 $751K271.1Kdirect Mar 20, 2024Mar 22, 2024 Form 4 ↗
OH Yoon AhVP, General Counsel & Corp Sec Sale −1,685 $180.00 $303K14.9Kdirect Mar 18, 2024Mar 18, 2024 Form 4 ↗
OH Yoon AhVP, General Counsel & Corp Sec Sale −2,685 $173.96 $467K16.6Kdirect Mar 15, 2024Mar 18, 2024 Form 4 ↗
MILLER DAVID BRIANDirector Sale −2,800 $170.49 $477K9,008direct Feb 13, 2024Feb 13, 2024 Form 4 ↗
Slicer MarkChief Financial Officer Sale −169 $127.03 $21K13.1Kdirect Sep 15, 2023Sep 18, 2023 Form 4 ↗
Slicer MarkChief Financial Officer Sale −1,507 $125.98 $190K13.3Kdirect Sep 15, 2023Sep 18, 2023 Form 4 ↗
Slicer MarkChief Financial Officer Sale −601 $124.31 $75K14.8Kdirect Sep 15, 2023Sep 18, 2023 Form 4 ↗
Slicer MarkChief Financial Officer Sale −728 $123.64 $90K15.4Kdirect Sep 15, 2023Sep 18, 2023 Form 4 ↗
Fiordalice RobertSVP & GM, Metrology BU Sale −162 $127.62 $21K6,477direct Sep 15, 2023Sep 18, 2023 Form 4 ↗
Fiordalice RobertSVP & GM, Metrology BU Sale −100 $126.56 $13K6,639direct Sep 15, 2023Sep 18, 2023 Form 4 ↗
Fiordalice RobertSVP & GM, Metrology BU Sale −3,746 $126.02 $472K6,739direct Sep 15, 2023Sep 18, 2023 Form 4 ↗
Fiordalice RobertSVP & GM, Metrology BU Sale −1,200 $124.48 $149K10.5Kdirect Sep 15, 2023Sep 18, 2023 Form 4 ↗
Fiordalice RobertSVP & GM, Metrology BU Sale −1,841 $123.66 $228K11.7Kdirect Sep 15, 2023Sep 18, 2023 Form 4 ↗
Vedula SrinivasSVP, Customer Success Sale −1,469 $137.00 $201K18.0Kdirect Sep 1, 2023Sep 5, 2023 Form 4 ↗
Plisinski Michael PCEO · Director Sale −4,886 $114.44 $559K251.8Kdirect Aug 21, 2023Aug 22, 2023 Form 4 ↗
Plisinski Michael PCEO · Director Sale −9,696 $113.76 $1.1M256.7Kdirect Aug 21, 2023Aug 22, 2023 Form 4 ↗
Plisinski Michael PCEO · Director Sale −6,763 $112.49 $761K266.4Kdirect Aug 21, 2023Aug 22, 2023 Form 4 ↗
Plisinski Michael PCEO · Director Sale −7,002 $111.86 $783K273.1Kdirect Aug 21, 2023Aug 22, 2023 Form 4 ↗
Plisinski Michael PCEO · Director Sale −2,653 $110.16 $292K280.1Kdirect Aug 21, 2023Aug 22, 2023 Form 4 ↗
Jin JuSVP & GM, IBU Sale −3,231 $105.17 $340K10.3Kdirect Jun 15, 2023Jun 16, 2023 Form 4 ↗
Jin JuSVP & GM, IBU Sale −1,232 $107.72 $133K13.5Kdirect Jun 5, 2023Jun 6, 2023 Form 4 ↗
Fiordalice RobertSVP, GM MBU Sale −846 $109.40 $93K13.5Kdirect May 26, 2023May 30, 2023 Form 4 ↗
MILLER DAVID BRIANDirector Sale −1,185 $99.21 $118K11.8Kdirect May 23, 2023May 25, 2023 Form 4 ↗
MILLER DAVID BRIANDirector Sale −3,815 $99.84 $381K13.0Kdirect May 23, 2023May 25, 2023 Form 4 ↗
Fiordalice RobertSVP, GM MBU Sale −780 $101.25 $79K14.4Kdirect May 18, 2023May 22, 2023 Form 4 ↗
Fiordalice RobertSVP, GM MBU Sale −768 $97.20 $75K15.2Kdirect May 17, 2023May 18, 2023 Form 4 ↗
Jin JuSVP & GM, IBU Sale −1,603 $95.00 $152K14.7Kdirect May 16, 2023May 17, 2023 Form 4 ↗
Fiordalice RobertSVP, GM MBU Sale −669 $93.15 $62K15.9Kdirect May 15, 2023May 17, 2023 Form 4 ↗
Fiordalice RobertSr. Vice President & GM, MBU Sale −662 $89.10 $59K12.9Kdirect Aug 5, 2022Aug 9, 2022 Form 4 ↗
Rhine Bruce CDirector Sale −15.4K $90.75 $1.4M3,500direct Feb 15, 2022Feb 17, 2022 Form 4 ↗
Rhine Bruce CDirector Sale −33.5K $89.60 $3.0M18.9Kdirect Feb 15, 2022Feb 17, 2022 Form 4 ↗
Rhine Bruce CDirector Sale −12.2K $89.03 $1.1M52.4Kdirect Feb 15, 2022Feb 17, 2022 Form 4 ↗
ROTH STEVEN RSr VP & CFO Sale −5,000 $105.00 $525K18.8Kdirect Jan 14, 2022Jan 18, 2022 Form 4 ↗
Rhine Bruce CDirector Sale −22.6K $98.12 $2.2M65.9Kdirect Dec 8, 2021Dec 10, 2021 Form 4 ↗
MILLER DAVID BRIANDirector Sale −5,500 $97.41 $536K12.5Kdirect Dec 7, 2021Dec 9, 2021 Form 4 ↗
Vedula Srinivas Sale −6,225 $90.31 $562K15.9Kdirect Nov 19, 2021Nov 23, 2021 Form 4 ↗
ROTH STEVEN RSr VP & CFO Sale −5,000 $83.00 $415K23.8Kdirect Nov 3, 2021Nov 3, 2021 Form 4 ↗
Rhine Bruce CDirector Sale −50.0K $80.36 $4.0M88.5Kdirect Nov 1, 2021Nov 3, 2021 Form 4 ↗
BERLINGHIERI LEODirector Sale −5,275 $80.48 $425K15.1Kdirect Nov 1, 2021Nov 3, 2021 Form 4 ↗
Plisinski Michael PChief Executive Officer · Director Sale −29.6K $75.34 $2.2M217.6Kdirect Aug 6, 2021Aug 10, 2021 Form 4 ↗
Plisinski Michael PChief Executive Officer · Director Sale −1,700 $75.24 $128K247.2Kdirect Jun 16, 2021Jun 17, 2021 Form 4 ↗
Plisinski Michael PChief Executive Officer · Director Sale −1,800 $75.25 $135K248.9Kdirect Jun 15, 2021Jun 17, 2021 Form 4 ↗
Rhine Bruce CDirector Sale −4,296 $75.16 $323K138.5Kdirect Jun 15, 2021Jun 17, 2021 Form 4 ↗
Plisinski Michael PChief Executive Officer · Director Sale −6,908 $75.30 $520K250.7Kdirect Jun 14, 2021Jun 15, 2021 Form 4 ↗
Heidrich Kevin Sale −6,474 $74.80 $484K20.5Kdirect Jun 14, 2021Jun 15, 2021 Form 4 ↗
Heidrich Kevin Sale −243 $75.01 $18K26.9Kdirect Jun 14, 2021Jun 15, 2021 Form 4 ↗
Heidrich Kevin Sale −11.1K $75.05 $833K27.2Kdirect Jun 14, 2021Jun 15, 2021 Form 4 ↗
Rhine Bruce CDirector Sale −45.3K $75.10 $3.4M142.8Kdirect Jun 14, 2021Jun 15, 2021 Form 4 ↗
Rhine Bruce CDirector Sale −401 $75.00 $30K188.1Kdirect Jun 11, 2021Jun 15, 2021 Form 4 ↗
Rhine Bruce CDirector Sale −30.0K $65.52 $2.0M0indirect May 24, 2021May 26, 2021 Form 4 ↗
Rhine Bruce CDirector Sale −800 $71.39 $57K186.0Kdirect Apr 13, 2021Apr 14, 2021 Form 4 ↗
Rhine Bruce CDirector Sale −16.5K $70.19 $1.2M186.8Kdirect Apr 13, 2021Apr 14, 2021 Form 4 ↗
Rhine Bruce CDirector Sale −21.1K $71.24 $1.5M203.3Kdirect Apr 12, 2021Apr 14, 2021 Form 4 ↗
Rhine Bruce CDirector Sale −11.6K $70.58 $817K224.5Kdirect Apr 12, 2021Apr 14, 2021 Form 4 ↗
ROTH STEVEN RSenior Vice President & CFO Sale −15.0K $70.00 $1.1M28.8Kdirect Apr 5, 2021Apr 6, 2021 Form 4 ↗
Rhine Bruce CDirector Sale −3,703 $61.60 $228K281.0Kdirect Feb 11, 2021Feb 12, 2021 Form 4 ↗
Rhine Bruce CDirector Sale −141.6K $60.79 $8.6M284.7Kdirect Feb 11, 2021Feb 12, 2021 Form 4 ↗
Rhine Bruce CDirector Sale −12.2K $59.34 $727K426.4Kdirect Feb 10, 2021Feb 11, 2021 Form 4 ↗
Rhine Bruce CDirector Sale −655 $60.30 $39K438.6Kdirect Feb 10, 2021Feb 11, 2021 Form 4 ↗
Rhine Bruce CDirector Sale −7,091 $60.23 $427K439.3Kdirect Feb 9, 2021Feb 11, 2021 Form 4 ↗
Rhine Bruce CDirector Sale −34.7K $59.26 $2.1M446.4Kdirect Feb 9, 2021Feb 11, 2021 Form 4 ↗
ROTH STEVEN RSenior Vice President & CFO Sale −10.0K $50.64 $506K42.0Kdirect Jan 11, 2021Jan 13, 2021 Form 4 ↗
KOCH ROBERT ALANVP & General Counsel Sale −6,270 $47.05 $295K35.0Kdirect Dec 14, 2020Dec 16, 2020 Form 4 ↗
KOCH ROBERT ALANVP & General Counsel Sale −8,730 $46.30 $404K41.3Kdirect Dec 14, 2020Dec 16, 2020 Form 4 ↗
Rhine Bruce CDirector Sale −2,500 $45.00 $113K482.1Kdirect Nov 27, 2020Dec 1, 2020 Form 4 ↗
Rhine Bruce CDirector Sale −5,579 $45.01 $251K484.6Kdirect Nov 24, 2020Nov 25, 2020 Form 4 ↗
Heidrich Kevin Sale −498 $40.55 $20K39.4Kdirect Nov 13, 2020Nov 16, 2020 Form 4 ↗
Heidrich Kevin Sale −508 $40.40 $21K39.9Kdirect Nov 11, 2020Nov 13, 2020 Form 4 ↗
ROTH STEVEN RSenior Vice President & CFO Sale −5,000 $40.00 $200K52.0Kdirect Nov 9, 2020Nov 12, 2020 Form 4 ↗
Rhine Bruce CDirector Sale −11.3K $37.52 $425K490.2Kdirect Nov 5, 2020Nov 9, 2020 Form 4 ↗
Rhine Bruce CDirector Sale −88.7K $37.07 $3.3M501.5Kdirect Nov 5, 2020Nov 9, 2020 Form 4 ↗
Plisinski Michael PChief Executive Officer · Director Sale −24.8K $35.34 $877K247.1Kdirect Nov 4, 2020Nov 5, 2020 Form 4 ↗
Plisinski Michael PChief Executive Officer · Director Sale −100 $36.08 $4K271.9Kdirect Nov 3, 2020Nov 5, 2020 Form 4 ↗
Plisinski Michael PChief Executive Officer · Director Sale −45.1K $35.22 $1.6M272.0Kdirect Nov 3, 2020Nov 5, 2020 Form 4 ↗
Kocher Rollin Sale −300 $36.50 $11K49.3Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −100 $36.49 $4K49.6Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −200 $36.48 $7K49.7Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −200 $36.45 $7K49.9Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −400 $36.37 $15K50.1Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −80 $36.34 $3K50.5Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −100 $36.33 $4K50.6Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −100 $36.32 $4K50.7Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −400 $36.29 $15K50.8Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −200 $36.27 $7K51.2Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −7 $36.21 $25351.4Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −500 $36.20 $18K51.4Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −100 $36.19 $4K51.9Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −600 $36.18 $22K52.0Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −200 $36.12 $7K52.6Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −100 $36.10 $4K52.8Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −300 $36.06 $11K52.9Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −15 $36.04 $54153.2Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −300 $36.03 $11K53.2Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −100 $36.02 $4K53.5Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −100 $35.36 $4K53.6Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −200 $35.31 $7K53.7Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −300 $35.29 $11K53.9Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −200 $35.26 $7K54.2Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −300 $35.13 $11K54.4Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −662 $35.12 $23K54.7Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −45 $35.11 $2K55.3Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −500 $35.10 $18K55.4Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −104 $35.08 $4K55.9Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −468 $35.06 $16K56.0Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −100 $35.02 $4K56.5Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −1,200 $35.01 $42K56.6Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −100 $34.83 $3K57.8Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
Kocher Rollin Sale −101 $34.80 $4K57.9Kdirect Aug 7, 2020Aug 11, 2020 Form 4 ↗
ROTH STEVEN RSenior Vice President & CFO Sale −10.0K $37.00 $370K57.0Kdirect Jul 23, 2020Jul 24, 2020 Form 4 ↗
Jin Ju Purchase +1,000 $30.00 $30K5,797direct Feb 28, 2020Jun 10, 2020 Form 4 ↗
WHITTEN JOHN RDirector Sale −6,000 $38.89 $233K20.6Kdirect Feb 19, 2020Feb 21, 2020 Form 4 ↗
Stultz Timothy JDirector Sale −17.7K $38.94 $688K209.1Kdirect Feb 12, 2020Feb 13, 2020 Form 4 ↗
Rhine Bruce CDirector Sale −100 $40.04 $4K585.4Kdirect Jan 16, 2020Jan 21, 2020 Form 4 ↗
Rhine Bruce CDirector Sale −500 $40.03 $20K585.5Kdirect Jan 16, 2020Jan 21, 2020 Form 4 ↗
Rhine Bruce CDirector Sale −5,801 $40.02 $232K586.0Kdirect Jan 16, 2020Jan 21, 2020 Form 4 ↗
Rhine Bruce CDirector Sale −36.6K $40.00 $1.5M591.8Kdirect Jan 16, 2020Jan 21, 2020 Form 4 ↗
Rhine Bruce CDirector Sale −37.0K $40.01 $1.5M628.4Kdirect Jan 16, 2020Jan 21, 2020 Form 4 ↗
Kocher Rollin Sale −168 $36.54 $6K57.4Kdirect Jan 2, 2020Jan 6, 2020 Form 4 ↗
Fiordalice Robert Sale −298 $36.54 $11K13.8Kdirect Jan 2, 2020Jan 6, 2020 Form 4 ↗
Rhine Bruce CDirector Sale −25.0K $34.66 $866K667.1Kdirect Nov 15, 2019Nov 19, 2019 Form 4 ↗

Source: SEC EDGAR Form 4 and Form 5 filings, SEC's quarterly bulk dataset through Jun 30, 2026, and KeyVex's half-hourly read of new filings since. Every row links its filing. Amendments are marked. Nothing here is a recommendation. All insider activity, market-wide →