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ONTO Insider Trading

Insider Ownership Percentage: 0.51%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $0.00

Onto Innovation Insider Trading History Chart

This chart shows the insider buying and selling history at Onto Innovation by year and by quarter.

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Onto Innovation Share Price & Price History

Current Price: $338.50
Price Change: ▲ Price Increase of +1.149 (0.34%)
As of 08/13/2026 03:59 PM ET

This chart shows the closing price history over time for ONTO up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Onto Innovation Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
1/21/2025Michael P PlisinskiCEOSell35,000$219.19$7,671,650.00150,492View SEC Filing Icon  
1/16/2025Michael P PlisinskiCEOSell30,000$211.24$6,337,200.00185,492View SEC Filing Icon  
1/15/2025Srinivas VedulaSVPSell827$205.00$169,535.0015,223View SEC Filing Icon  
1/14/2025Michael P PlisinskiCEOSell20,000$200.19$4,003,800.00215,492View SEC Filing Icon  
9/3/2024Srinivas VedulaSVPSell1,275$207.24$264,231.0016,050View SEC Filing Icon  
6/10/2024Srinivas VedulaSVPSell1,486$213.40$317,112.4017,433View SEC Filing Icon  
6/6/2024Mark SlicerCFOSell519$221.21$114,807.9912,552View SEC Filing Icon  
3/20/2024Michael P PlisinskiCEOSell40,000$175.48$7,019,200.00235,492View SEC Filing Icon  
3/18/2024Yoon Ah OhVPSell1,685$180.00$303,300.0014,913View SEC Filing Icon  
3/15/2024Yoon Ah OhVPSell2,685$173.96$467,082.6016,598View SEC Filing Icon  
2/13/2024David Brian MillerDirectorSell2,800$170.49$477,372.009,008View SEC Filing Icon  
9/15/2023Mark SlicerCFOSell3,005$125.14$376,045.7013,111View SEC Filing Icon  
9/15/2023Robert FiordaliceSVPSell7,049$125.19$882,464.316,477View SEC Filing Icon  
9/1/2023Srinivas VedulaSVPSell1,469$137.00$201,253.0017,976View SEC Filing Icon  
8/21/2023Michael P PlisinskiCEOSell31,000$112.85$3,498,350.00251,794View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for Onto Innovation (NYSE:ONTO)

98.35% of Onto Innovation stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at ONTO by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Onto Innovation Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/13/2026Tairen Capital Ltd17,500$6.62M0.6%N/A0.036%Search for SEC Filing on Google Icon
8/13/2026Sanctuary Advisors LLC3,963$1.50M0.0%N/A0.008%Search for SEC Filing on Google Icon
8/13/2026Polymer Capital Management HK LTD11,400$4.31M0.2%N/A0.023%Search for SEC Filing on Google Icon
8/13/2026E20 Capital Ltd56,220$21.28M1.7%N/A0.115%Search for SEC Filing on Google Icon
8/13/2026Meiji Yasuda Asset Management Co Ltd.1,145$0.43M0.0%N/A0.002%Search for SEC Filing on Google Icon
8/13/2026Globeflex Capital L P14,549$5.51M0.7%N/A0.030%Search for SEC Filing on Google Icon
8/13/2026Bank of Nova Scotia23,274$8.81M0.0%N/A0.047%Search for SEC Filing on Google Icon
8/12/2026Northwestern Mutual Wealth Management Co.178,938$67.72M0.0%N/A0.365%Search for SEC Filing on Google Icon
8/12/2026Evolve Private Wealth LLC1,036$0.39M0.0%N/A0.002%Search for SEC Filing on Google Icon
8/12/2026Farringdon Capital Ltd.657$0.25M0.1%N/A0.001%Search for SEC Filing on Google Icon
8/12/2026William Blair Investment Management LLC665,377$251.81M0.8%N/A1.356%Search for SEC Filing on Google Icon
8/12/2026Harber Asset Management LLC13,757$5.21M3.1%N/A0.028%Search for SEC Filing on Google Icon
8/12/2026EP Wealth Advisors LLC1,927$0.73M0.0%N/A0.004%Search for SEC Filing on Google Icon
8/12/2026Rakuten Securities Inc.107$40K0.0%N/A0.000%Search for SEC Filing on Google Icon
8/12/2026Ieq Capital LLC3,598$1.36M0.0%N/A0.007%Search for SEC Filing on Google Icon
8/11/2026Allworth Financial LP987$0.37M0.0%N/A0.002%Search for SEC Filing on Google Icon
8/11/2026Silvant Capital Management LLC6,715$2.54M0.1%N/A0.014%Search for SEC Filing on Google Icon
8/11/2026PCM Encore LLC2,646$1M0.2%N/A0.005%Search for SEC Filing on Google Icon
8/11/2026Value Holdings Management CO. LLC102,153$38.66M6.5%N/A0.208%Search for SEC Filing on Google Icon
8/11/2026Vise Technologies Inc.3,144$1.19M0.0%N/A0.006%Search for SEC Filing on Google Icon
8/11/2026Lisanti Capital Growth LLC5,090$1.93M0.4%N/A0.010%Search for SEC Filing on Google Icon
8/10/2026NewEdge Wealth LLC1,481$0.56M0.0%N/A0.003%Search for SEC Filing on Google Icon
8/10/2026Diversify Advisory Services LLC1,256$0.33M0.0%N/A0.003%Search for SEC Filing on Google Icon
8/10/2026Pacific Wealth Management1,287$0.49M0.2%N/A0.003%Search for SEC Filing on Google Icon
8/8/2026First National Bank of Omaha10,776$4.08M0.1%N/A0.022%Search for SEC Filing on Google Icon
8/8/2026Meeder Advisory Services Inc.1,567$0.59M0.0%N/A0.003%Search for SEC Filing on Google Icon
8/7/2026BlackRock Inc.5,505,181$2.08B0.0%N/A11.067%Search for SEC Filing on Google Icon
8/7/2026Pallas Capital Advisors LLC1,486$0.56M0.0%N/A0.003%Search for SEC Filing on Google Icon
8/7/2026Deutsche Bank AG10,896$4.12M0.0%N/A0.022%Search for SEC Filing on Google Icon
8/7/2026Perigon Wealth Management LLC754$0.29M0.0%N/A0.002%Search for SEC Filing on Google Icon
8/7/2026TimesSquare Capital Management LLC217,113$82.17M1.2%N/A0.436%Search for SEC Filing on Google Icon
8/7/2026Mitsubishi UFJ Asset Management Co. Ltd.110$42K0.0%N/A0.000%Search for SEC Filing on Google Icon
8/7/2026Persistent Asset Partners Ltd5,947$2.25M0.7%N/A0.012%Search for SEC Filing on Google Icon
8/7/2026OneDigital Investment Advisors LLC550$0.21M0.0%N/A0.001%Search for SEC Filing on Google Icon
8/7/2026Andar Capital Management HK Ltd69,000$26.11M11.7%N/A0.139%Search for SEC Filing on Google Icon
8/6/2026Global Retirement Partners LLC6,699$2.54M0.0%N/A0.013%Search for SEC Filing on Google Icon
8/6/2026Bank of New York Mellon Corp428,200$162.05M0.0%N/A0.861%Search for SEC Filing on Google Icon
8/6/2026Focus Partners Advisor Solutions LLC821$0.31M0.0%N/A0.002%Search for SEC Filing on Google Icon
8/6/2026State of Wyoming547$0.21M0.0%N/A0.001%Search for SEC Filing on Google Icon
8/6/2026Andar Capital Management HK Ltd26,113,050$69M0.2%N/A52.499%Search for SEC Filing on Google Icon
8/3/2026Oppenheimer Asset Management Inc.1,507$0.57M0.0%N/A0.003%Search for SEC Filing on Google Icon
8/3/2026Dockside LLC4,817$1.82M0.4%N/A0.010%Search for SEC Filing on Google Icon
7/10/2026Handelsbanken Fonder AB16,500$6.24M0.0%+13.0%0.033%Search for SEC Filing on Google Icon
7/9/2026Arista Wealth Management LLC1,000$0.38M0.0%N/A0.002%Search for SEC Filing on Google Icon
7/9/2026Everhart Financial Group Inc.677$0.26M0.0%N/A0.001%Search for SEC Filing on Google Icon
7/9/2026Hennion & Walsh Asset Management Inc.5,524$2.09M0.1%-6.5%0.011%Search for SEC Filing on Google Icon
7/8/2026Trust Point Inc.1,751$0.66M0.1%-43.6%0.004%Search for SEC Filing on Google Icon
7/8/2026FNY Investment Advisers LLC220$83K0.0%-83.7%0.000%Search for SEC Filing on Google Icon
7/8/2026Assenagon Asset Management S.A.143,746$54.40M0.1%-37.0%0.289%Search for SEC Filing on Google Icon
7/7/2026GAMMA Investing LLC1,483$0.56M0.0%+19.2%0.003%Search for SEC Filing on Google Icon
7/7/2026Avior Wealth Management LLC532$0.20M0.0%N/A0.001%Search for SEC Filing on Google Icon
7/7/2026Harbor Investment Advisory LLC125$47K0.0%N/A0.000%Search for SEC Filing on Google Icon
7/7/2026Central Pacific Bank Trust Division840$0.32M0.0%-22.2%0.002%Search for SEC Filing on Google Icon
7/7/2026Canandaigua National Bank & Trust Co.1,014$0.38M0.0%N/A0.002%Search for SEC Filing on Google Icon
7/7/2026Moody National Bank Trust Division6,955$2.63M0.2%-49.5%0.014%Search for SEC Filing on Google Icon
7/7/2026CoreCap Advisors LLC100$38K0.0%N/A0.000%Search for SEC Filing on Google Icon
7/6/2026Trilogy Capital Inc.1,125$0.43M0.0%N/A0.002%Search for SEC Filing on Google Icon
6/18/2026Pacer Advisors Inc.364,247$74.70M0.1%+8.7%0.732%Search for SEC Filing on Google Icon
6/3/2026Parallel Advisors LLC395$81K0.0%+16.5%0.001%Search for SEC Filing on Google Icon
6/3/2026NewEdge Advisors LLC3,761$0.77M0.0%-21.1%0.008%Search for SEC Filing on Google Icon
5/28/2026Cozad Asset Management Inc.1,000$0.21M0.0%N/A0.002%Search for SEC Filing on Google Icon
5/26/2026Glenmede Trust Co. NA19,043$3.91M0.0%-37.6%0.038%Search for SEC Filing on Google Icon
5/22/2026Summitry LLC3,159$0.65M0.0%-7.7%0.006%Search for SEC Filing on Google Icon
5/22/2026Segall Bryant & Hamill LLC275,689$56.54M0.7%-30.9%0.554%Search for SEC Filing on Google Icon
5/19/2026Bank of America Corp DE192,850$39.55M0.0%-17.2%0.388%Search for SEC Filing on Google Icon
5/19/2026Tanaka Capital Management Inc.12,448$2.55M3.0%-3.0%0.025%Search for SEC Filing on Google Icon
5/19/2026Janus Henderson Group PLC68,999$14.15M0.0%-27.3%0.139%Search for SEC Filing on Google Icon
5/19/2026Bull Harbor Capital LLC1,849$0.38M0.1%N/A0.004%Search for SEC Filing on Google Icon
5/19/2026Arkadios Wealth Advisors981$0.20M0.0%N/A0.002%Search for SEC Filing on Google Icon
5/18/2026Amundi130,684$26.80M0.0%-6.6%0.263%Search for SEC Filing on Google Icon
5/18/2026EverSource Wealth Advisors LLC1,189$0.24M0.0%+18.2%0.002%Search for SEC Filing on Google Icon
5/18/2026California State Teachers Retirement System56,775$11.64M0.0%+22.1%0.114%Search for SEC Filing on Google Icon
5/18/2026Royal Bank of Canada214,629$44.01M0.0%-13.9%0.432%Search for SEC Filing on Google Icon
5/18/2026Empowered Funds LLC13,572$2.78M0.0%+703.6%0.027%Search for SEC Filing on Google Icon
5/16/2026The Manufacturers Life Insurance Company198,082$40.62M0.0%-26.4%0.398%Search for SEC Filing on Google Icon
5/16/2026Quantinno Capital Management LP20,024$4.11M0.0%+29.0%0.040%Search for SEC Filing on Google Icon
5/16/2026Clough Capital Partners L P8,831$1.81M0.2%N/A0.018%Search for SEC Filing on Google Icon
5/16/2026SummitTX Capital L.P.24,846$5.10M0.2%-74.3%0.050%Search for SEC Filing on Google Icon
5/16/2026Lazard Asset Management LLC48,728$9.99M0.0%+17.2%0.098%Search for SEC Filing on Google Icon
5/16/2026Castleark Management LLC29,030$5.95M0.2%-32.4%0.058%Search for SEC Filing on Google Icon
5/15/2026Alua Capital Management LP131,721$27.01M2.4%N/A0.265%Search for SEC Filing on Google Icon
5/15/2026Guardian Point Capital LP110,000$22.56M9.3%-31.3%0.221%Search for SEC Filing on Google Icon
5/15/2026Waverly Advisors LLC1,307$0.27M0.0%N/A0.003%Search for SEC Filing on Google Icon
5/15/2026Granahan Investment Management LLC198,694$40.75M2.0%+1.0%0.399%Search for SEC Filing on Google Icon
5/15/2026Entropy Technologies LP14,031$2.88M0.1%N/A0.028%Search for SEC Filing on Google Icon
5/14/2026Beaconlight Capital LLC3,941$0.81M0.4%N/A0.008%Search for SEC Filing on Google Icon
5/14/2026Paradigm Capital Management Inc. NY1,102,438$226.08M8.6%-2.1%2.216%Search for SEC Filing on Google Icon
5/14/2026Public Employees Retirement System of Ohio15,095$3.10M0.0%+1.1%0.030%Search for SEC Filing on Google Icon
5/14/2026Inceptionr LLC3,228$0.66M0.2%N/A0.006%Search for SEC Filing on Google Icon
5/14/2026Liberty One Investment Management LLC6,768$1.39M0.1%+10.7%0.014%Search for SEC Filing on Google Icon
5/14/2026Bank of Nova Scotia14,978$3.07M0.0%N/A0.030%Search for SEC Filing on Google Icon
5/14/2026Systematic Financial Management LP178,345$36.57M0.8%-9.4%0.359%Search for SEC Filing on Google Icon
5/14/2026Sei Investments Co.72,117$14.79M0.0%+67.0%0.145%Search for SEC Filing on Google Icon
5/14/2026Globeflex Capital L P12,750$2.62M0.4%N/A0.026%Search for SEC Filing on Google Icon
5/14/2026State of Wyoming1,381$0.28M0.0%+19.6%0.003%Search for SEC Filing on Google Icon
5/13/2026Cetera Investment Advisers13,266$2.72M0.0%+15.6%0.027%Search for SEC Filing on Google Icon
5/13/2026NewEdge Wealth LLC1,120$0.23M0.0%N/A0.002%Search for SEC Filing on Google Icon
5/13/2026CI Investments Inc.34,873$7.15M0.0%-1.6%0.070%Search for SEC Filing on Google Icon
5/13/2026First Trust Advisors LP161,953$33.21M0.0%-7.4%0.326%Search for SEC Filing on Google Icon
5/8/2026PNC Financial Services Group Inc.5,600$1.15M0.0%-3.6%0.011%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Onto Innovation logo
Onto Innovation Inc. engages in the design, development, manufacture, and support of process control tools that performs optical metrology. The company offers lithography systems and process control analytical software. It also offers process and yield management solutions, and device packaging and test facilities through standalone systems for optical metrology, macro-defect inspection, packaging lithography, and transparent and opaque thin film measurements. In addition, the company provides process control software portfolio that includes solutions for standalone tools, groups of tools, and enterprise-or factory-wide suites. Further, it engages in systems software, spare parts, and other services, as well as offers software licensing services. The company's products are used in semiconductor and advanced packaging device manufacturers; silicon wafer; light emitting diode; vertical-cavity surface-emitting laser; micro-electromechanical system; CMOS image sensor; power device; analog device; RF filter; data storage; and various industrial and scientific applications. Onto Innovation Inc. was founded in 1940 and is headquartered in Wilmington, Massachusetts.
Read More on Onto Innovation

Today's Range

Now: $338.50
Low: $327.23
High: $342.80

50 Day Range

MA: $300.98
Low: $217.83
High: $378.48

52 Week Range

Now: $338.50
Low: $101.00
High: $386.46

Volume

933,920 shs

Average Volume

1,221,370 shs

Market Capitalization

$16.61 billion

P/E Ratio

127.26

Dividend Yield

N/A

Beta

1.59

Who are the company insiders with the largest holdings of Onto Innovation?

Onto Innovation's top insider investors include:
  1. Bruce Rhine (Director)
  2. Bruce C Rhine (Director)
  3. Timothy J Stultz (Director)
  4. Timothy J Stultz (CEO)
  5. Michael P Plisinski (CEO)
  6. Michael P Plisinski (CEO)
  7. Timothy Stultz (CEO)
  8. J Thomas Bentley (Director)
  9. Jeff Andreson (CFO)
  10. Kevin Heidrich (VP)
Learn More about top insider investors at Onto Innovation.

Who are the major institutional investors of Onto Innovation?

Onto Innovation's top institutional investors include:
  1. Andar Capital Management HK Ltd — 52.50%
  2. BlackRock Inc. — 11.07%
  3. William Blair Investment Management LLC — 1.36%
  4. Bank of New York Mellon Corp — 0.86%
  5. TimesSquare Capital Management LLC — 0.44%
  6. Northwestern Mutual Wealth Management Co. — 0.36%
Learn More about top institutional investors of Onto Innovation stock.

Which major investors are selling Onto Innovation stock?

In the previous quarter, ONTO stock was sold by these institutional investors:
  1. Assenagon Asset Management S.A.
  2. Moody National Bank Trust Division
  3. Trust Point Inc.
  4. FNY Investment Advisers LLC
  5. Hennion & Walsh Asset Management Inc.
  6. Central Pacific Bank Trust Division

Which major investors are buying Onto Innovation stock?

In the previous quarter, ONTO stock was bought by institutional investors including:
  1. Andar Capital Management HK Ltd
  2. BlackRock Inc.
  3. William Blair Investment Management LLC
  4. Bank of New York Mellon Corp
  5. TimesSquare Capital Management LLC
  6. Northwestern Mutual Wealth Management Co.
  7. Value Holdings Management CO. LLC
  8. Andar Capital Management HK Ltd

Onto Innovation Active Insiders

Michael P. Plisinski
Michael P. Plisinski (Age 56)
CEO
Steven R. Roth
Steven R. Roth (Age 65)
CFO
Mark Slicer
Mark Slicer (Age 54)
CFO
Bruce C Rhine
Director
David Brian Miller
Director
Srinivas Vedula
SVP
Robert Fiordalice (Age 64)
SVP
Kevin Heidrich
Kevin Heidrich (Age 55)
VP
Robert Alan Koch
Robert Alan Koch
VP
Yoon Ah Oh
Yoon Ah Oh
VP