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ONTO Insider Trading

Insider Ownership Percentage: 0.51%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $302,300.00

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: $268.20
Price Change: ▲ Price Increase of +0.19 (0.07%)
As of 09/4/2026 03:58 PM ET

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

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Days: 30 | 90 | 365

Onto Innovation Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
8/21/2026Susan D. LynchDirectorSell1,000$302.30$302,300.002,684View SEC Filing Icon  
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  
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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
9/2/2026Allianz Asset Management GmbH695$0.26M0.0%N/A0.001%Search for SEC Filing on Google Icon
8/27/2026Corient Private Wealth LP16,574$6.27M0.0%+52.7%0.034%Search for SEC Filing on Google Icon
8/26/2026Amundi19,223$7.28M0.0%-85.3%0.039%Search for SEC Filing on Google Icon
8/26/2026HighTower Advisors LLC4,073$1.54M0.0%-26.8%0.008%Search for SEC Filing on Google Icon
8/25/2026VIRGINIA RETIREMENT SYSTEMS ET Al16,850$6.38M0.0%N/A0.034%Search for SEC Filing on Google Icon
8/24/2026California State Teachers Retirement System21,848,297$8.27B0.0%+38,382.2%44.525%Search for SEC Filing on Google Icon
8/23/2026Wedmont Private Capital734$0.28M0.0%N/A0.001%Search for SEC Filing on Google Icon
8/23/2026HB Wealth Management LLC2,698$1.02M0.0%+4.7%0.005%Search for SEC Filing on Google Icon
8/22/2026AlphaGrep UK Ltd538$0.20M0.1%N/A0.001%Search for SEC Filing on Google Icon
8/22/2026Highland Investment Advisors LLC65$25K0.0%N/A0.000%Search for SEC Filing on Google Icon
8/22/2026Turner Financial Group Inc.696$0.26M0.3%N/A0.001%Search for SEC Filing on Google Icon
8/22/2026Knollwood Investment Advisory LLC700$0.27M0.0%N/A0.001%Search for SEC Filing on Google Icon
8/22/2026Syon Capital LLC668$0.25M0.0%N/A0.001%Search for SEC Filing on Google Icon
8/22/2026Concurrent Investment Advisors LLC3,665$1.39M0.0%-3.3%0.007%Search for SEC Filing on Google Icon
8/21/2026Nykredit A S1,829$0.69M0.0%N/A0.004%Search for SEC Filing on Google Icon
8/20/2026Proficio Capital Partners LLC1,635$0.62M0.0%N/A0.003%Search for SEC Filing on Google Icon
8/20/2026BTG Pactual Asset Management US LLC542$0.21M0.0%N/A0.001%Search for SEC Filing on Google Icon
8/20/2026Headlands Technologies LLC582$0.22M0.0%N/A0.001%Search for SEC Filing on Google Icon
8/20/2026Sigma Planning Corp632$0.24M0.0%N/A0.001%Search for SEC Filing on Google Icon
8/20/2026GTS Securities LLC1,202$0.46M0.0%N/A0.002%Search for SEC Filing on Google Icon
8/20/2026Northwestern Mutual Wealth Management Co.178,938$67.72M0.0%+23,351.9%0.365%Search for SEC Filing on Google Icon
8/20/2026Greenwood Capital Associates LLC1,622$0.61M0.1%-36.7%0.003%Search for SEC Filing on Google Icon
8/20/2026Greenleaf Trust937$0.36M0.0%N/A0.002%Search for SEC Filing on Google Icon
8/19/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC155,253$58.76M0.0%+4.9%0.316%Search for SEC Filing on Google Icon
8/19/2026Van ECK Associates Corp41,588$15.74M0.0%+1,967.0%0.085%Search for SEC Filing on Google Icon
8/19/2026Hsbc Holdings PLC6,210$2.36M0.0%+39.8%0.013%Search for SEC Filing on Google Icon
8/19/2026Wellington Management Group LLP539,314$204.10M0.0%-0.8%1.099%Search for SEC Filing on Google Icon
8/18/2026Empowered Funds LLC7,788$2.95M0.0%N/A0.016%Search for SEC Filing on Google Icon
8/18/2026United Capital Financial Advisors LLC1,291$0.49M0.0%N/A0.003%Search for SEC Filing on Google Icon
8/18/2026Caitlin John LLC2,000$0.76M0.4%N/A0.004%Search for SEC Filing on Google Icon
8/18/2026Jefferies Financial Group Inc.10,601$4.01M0.0%N/A0.022%Search for SEC Filing on Google Icon
8/18/2026Public Employees Retirement System of Ohio15,613$5.91M0.0%N/A0.032%Search for SEC Filing on Google Icon
8/17/2026Capstone Investment Advisors LLC551$0.21M0.0%N/A0.001%Search for SEC Filing on Google Icon
8/17/2026Proficio Capital Partners LLC1,635$0.62M0.0%N/A0.003%Search for SEC Filing on Google Icon
8/17/2026Transamerica Financial Advisors LLC558$0.21M0.0%N/A0.001%Search for SEC Filing on Google Icon
8/17/2026Corient Private Wealth LP12,385$4.69M0.0%N/A0.025%Search for SEC Filing on Google Icon
8/17/2026Bank of America Corp DE187,939$71.13M0.0%N/A0.383%Search for SEC Filing on Google Icon
8/15/2026Freestone Grove Partners LP19,492$7.38M0.0%N/A0.040%Search for SEC Filing on Google Icon
8/15/2026Man Group plc31,793$12.03M0.0%N/A0.065%Search for SEC Filing on Google Icon
8/15/2026Polar Asset Management Partners Inc.9,566$3.62M0.1%N/A0.019%Search for SEC Filing on Google Icon
8/15/2026Jupiter Topco LLC64,399$24.38M0.0%N/A0.131%Search for SEC Filing on Google Icon
8/14/2026Hsbc Holdings PLC6,210$2.36M0.0%N/A0.013%Search for SEC Filing on Google Icon
8/14/2026EFG International AG31,200$11.82M0.2%N/A0.064%Search for SEC Filing on Google Icon
8/14/2026Palisade Capital Management LP52,514$19.87M0.9%N/A0.107%Search for SEC Filing on Google Icon
8/14/2026Canada Pension Plan Investment Board20,200$7.65M0.0%N/A0.041%Search for SEC Filing on Google Icon
8/14/2026Nicholas Investment Partners LP29,952$11.34M0.6%N/A0.061%Search for SEC Filing on Google Icon
8/14/2026Legal & General Group Plc69,700$26.38M0.0%N/A0.142%Search for SEC Filing on Google Icon
8/14/2026The Manufacturers Life Insurance Company220,852$83.58M0.1%N/A0.450%Search for SEC Filing on Google Icon
8/14/2026Fiduciary Financial Advisors67$25K0.0%N/A0.000%Search for SEC Filing on Google Icon
8/14/2026Paradigm Capital Management Inc. NY1,101,438$416.84M11.3%N/A2.245%Search for SEC Filing on Google Icon
8/14/2026Algert Global LLC4,570$1.73M0.0%+30.2%0.009%Search for SEC Filing on Google Icon
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
Data available starting January 2016

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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: $268.20
Low: $257.70
High: $270.00

50 Day Range

MA: $292.02
Low: $217.83
High: $378.48

52 Week Range

Now: $268.20
Low: $102.50
High: $386.46

Volume

721,621 shs

Average Volume

949,121 shs

Market Capitalization

$13.16 billion

P/E Ratio

100.83

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. California State Teachers Retirement System — 44.52%
  3. BlackRock Inc. — 11.07%
  4. Paradigm Capital Management Inc. NY — 2.24%
  5. William Blair Investment Management LLC — 1.36%
  6. Wellington Management Group LLP — 1.10%
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. Amundi
  2. Assenagon Asset Management S.A.
  3. Moody National Bank Trust Division
  4. Wellington Management Group LLP
  5. HighTower Advisors LLC
  6. Trust Point Inc.
  7. FNY Investment Advisers LLC
  8. Greenwood Capital Associates LLC

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. California State Teachers Retirement System
  3. BlackRock Inc.
  4. Paradigm Capital Management Inc. NY
  5. William Blair Investment Management LLC
  6. Bank of New York Mellon Corp
  7. The Manufacturers Life Insurance Company
  8. TimesSquare Capital Management LLC

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
Susan D Lynch
Susan D Lynch
Director
1 recent trades
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