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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.

Skip ChartChart Data in Insider Trading History Table

Onto Innovation Share Price & Price History

Current Price: $271.66
Price Change: ▼ Price Decrease of -5.619 (-2.03%)
As of 05/15/2026 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  
6/15/2023Ju JinSVPSell3,231$105.17$339,804.2710,254View SEC Filing Icon  
6/5/2023Ju JinSVPSell1,232$107.72$132,711.0413,485View SEC Filing Icon  
5/26/2023Robert FiordaliceSVPSell846$109.40$92,552.4013,526View SEC Filing Icon  
5/23/2023David Brian MillerDirectorSell5,000$99.69$498,450.0011,808View SEC Filing Icon  
5/17/2023Robert FiordaliceSVPSell768$97.20$74,649.6015,152View SEC Filing Icon  
5/15/2023Robert FiordaliceSVPSell669$93.15$62,317.3515,920View SEC Filing Icon  
See Full Table

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
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
5/8/2026Andar Capital Management HK Ltd78,000$16M13.7%-10.0%0.157%Search for SEC Filing on Google Icon
5/8/2026DUTCH ASSET Corp8,599$1.76M1.2%+17.3%0.017%Search for SEC Filing on Google Icon
5/8/2026Alpha Zero LLC1,242$0.26M0.1%N/A0.002%Search for SEC Filing on Google Icon
5/7/2026Meeder Advisory Services Inc.1,550$0.32M0.0%+9.1%0.003%Search for SEC Filing on Google Icon
5/7/2026Dimensional Fund Advisors LP677,502$138.90M0.0%+4.3%1.362%Search for SEC Filing on Google Icon
5/7/2026Parallel Advisors LLC395$81K0.0%+16.5%0.001%Search for SEC Filing on Google Icon
5/7/2026KBC Group NV1,653$0.34M0.0%+14.6%0.003%Search for SEC Filing on Google Icon
5/7/2026Swiss National Bank96,941$19.88M0.0%+0.3%0.195%Search for SEC Filing on Google Icon
5/7/2026AIA Group Ltd4,077$0.84M0.0%-26.6%0.008%Search for SEC Filing on Google Icon
5/6/2026Jennison Associates LLC564,305$115.72M0.1%-17.1%1.135%Search for SEC Filing on Google Icon
5/6/2026IMA Advisory Services Inc.21,970$4.51M0.4%-2.8%0.044%Search for SEC Filing on Google Icon
5/6/2026California Public Employees Retirement System84,090$17.24M0.0%-0.3%0.169%Search for SEC Filing on Google Icon
5/6/2026Future Fund LLC21,293$4.37M1.5%+44.6%0.043%Search for SEC Filing on Google Icon
5/6/2026Bessemer Group Inc.142,835$29.29M0.0%-18.7%0.287%Search for SEC Filing on Google Icon
5/6/2026Allspring Global Investments Holdings LLC359,998$76.22M0.1%+32.5%0.724%Search for SEC Filing on Google Icon
5/5/2026D.A. Davidson & CO.3,400$0.70M0.0%+113.8%0.007%Search for SEC Filing on Google Icon
5/5/2026Bank of New York Mellon Corp567,805$116.44M0.0%-5.5%1.142%Search for SEC Filing on Google Icon
5/5/2026Pacific Wealth Management1,587$0.33M0.2%-3.1%0.003%Search for SEC Filing on Google Icon
5/5/2026Sanctuary Advisors LLC4,095$0.84M0.0%+32.5%0.008%Search for SEC Filing on Google Icon
5/4/2026Emerald Mutual Fund Advisers Trust70,930$14.55M0.7%-5.9%0.143%Search for SEC Filing on Google Icon
5/4/2026Emerald Advisers LLC118,423$24.29M0.8%-3.4%0.238%Search for SEC Filing on Google Icon
5/4/2026State of Michigan Retirement System11,900$2.44M0.0%+2.6%0.024%Search for SEC Filing on Google Icon
5/4/2026Principal Financial Group Inc.144,555$29.64M0.0%-22.6%0.291%Search for SEC Filing on Google Icon
5/4/2026Chicago Partners Investment Group LLC1,128$0.23M0.0%-18.1%0.002%Search for SEC Filing on Google Icon
5/4/2026AMF Tjanstepension AB20,241$4.15M0.0%-18.2%0.041%Search for SEC Filing on Google Icon
5/2/2026Diversify Wealth Management LLC1,368$0.28M0.0%N/A0.003%Search for SEC Filing on Google Icon
5/2/2026Valmark Advisers Inc.1,000$0.21M0.0%N/A0.002%Search for SEC Filing on Google Icon
5/1/2026Commonwealth of Pennsylvania Public School Empls Retrmt SYS12,441$2.55M0.0%+1.4%0.025%Search for SEC Filing on Google Icon
5/1/2026Fifth Third Bancorp15,162$3.11M0.0%+504.1%0.030%Search for SEC Filing on Google Icon
5/1/2026Sequoia Financial Advisors LLC19,176$3.93M0.0%-3.4%0.039%Search for SEC Filing on Google Icon
5/1/2026Kornitzer Capital Management Inc. KS64,645$13.26M0.3%+81.4%0.130%Search for SEC Filing on Google Icon
4/30/2026Hsbc Holdings PLC4,441$0.90M0.0%-61.3%0.009%Search for SEC Filing on Google Icon
4/30/2026Millstone Evans Group LLC166$34K0.0%+147.8%0.000%Search for SEC Filing on Google Icon
4/30/2026Kestra Advisory Services LLC1,368$0.28M0.0%+4.9%0.003%Search for SEC Filing on Google Icon
4/30/2026Granite Investment Partners LLC68,437$14.03M0.9%-5.3%0.138%Search for SEC Filing on Google Icon
4/30/2026Greenwood Capital Associates LLC2,563$0.53M0.1%-40.5%0.005%Search for SEC Filing on Google Icon
4/30/2026Oregon Public Employees Retirement Fund10,226$2.10M0.0%+4.7%0.021%Search for SEC Filing on Google Icon
4/30/2026Taylor Frigon Capital Management LLC10,395$2.13M1.2%-31.5%0.021%Search for SEC Filing on Google Icon
4/29/2026Swedbank AB44,600$9.15M0.0%-46.0%0.090%Search for SEC Filing on Google Icon
4/28/2026Stephens Inc. AR1,067$0.22M0.0%N/A0.002%Search for SEC Filing on Google Icon
4/28/2026Stephens Investment Management Group LLC135,369$27.76M0.4%N/A0.272%Search for SEC Filing on Google Icon
4/28/2026K.J. Harrison & Partners Inc4,000$0.82M0.1%N/A0.008%Search for SEC Filing on Google Icon
4/28/2026Praxis Investment Management Inc.1,667$0.34M0.0%+6.9%0.003%Search for SEC Filing on Google Icon
4/28/2026QRG Capital Management Inc.986$0.20M0.0%N/A0.002%Search for SEC Filing on Google Icon
4/27/2026New York State Teachers Retirement System52,397$10.75M0.0%-3.0%0.105%Search for SEC Filing on Google Icon
4/27/2026Private Advisor Group LLC2,009$0.41M0.0%-12.7%0.004%Search for SEC Filing on Google Icon
4/27/2026Y Intercept Hong Kong Ltd26,876$5.51M0.1%N/A0.054%Search for SEC Filing on Google Icon
4/27/2026Leonteq Securities AG1,412$0.29M0.0%+11,666.7%0.003%Search for SEC Filing on Google Icon
4/25/2026Keybank National Association OH3,204$0.66M0.0%-19.3%0.006%Search for SEC Filing on Google Icon
4/24/2026Root Financial Partners LLC277$57K0.0%+55.6%0.001%Search for SEC Filing on Google Icon
4/23/2026AMI Asset Management Corp2,542$0.52M0.0%N/A0.005%Search for SEC Filing on Google Icon
4/22/2026Fort Washington Investment Advisors Inc. OH163,525$33.53M0.2%-0.4%0.329%Search for SEC Filing on Google Icon
4/22/2026Pictet Asset Management Holding SA16,336$3.35M0.0%+114.9%0.033%Search for SEC Filing on Google Icon
4/22/2026Sterling Capital Management LLC5,329$1.09M0.0%+129.8%0.011%Search for SEC Filing on Google Icon
4/21/2026Louisiana State Employees Retirement System14,400$2.95M0.1%N/A0.029%Search for SEC Filing on Google Icon
4/20/2026Blue Trust Inc.300$62K0.0%-26.1%0.001%Search for SEC Filing on Google Icon
4/20/2026Fifth Third Wealth Advisors LLC1,173$0.24M0.0%N/A0.002%Search for SEC Filing on Google Icon
4/20/2026Banque Cantonale Vaudoise471$97K0.0%-10.3%0.001%Search for SEC Filing on Google Icon
4/20/2026Assenagon Asset Management S.A.228,321$46.82M0.1%+11.3%0.459%Search for SEC Filing on Google Icon
4/17/2026Campbell Newman Asset Management Inc.23,211$4.76M0.4%+1.9%0.047%Search for SEC Filing on Google Icon
4/16/2026SG Americas Securities LLC68,315$14.01M0.0%+1,144.1%0.137%Search for SEC Filing on Google Icon
4/16/2026Diversified Trust Co3,139$0.64M0.0%N/A0.006%Search for SEC Filing on Google Icon
3/20/2026Hsbc Holdings PLC11,464$1.82M0.0%-67.9%0.023%Search for SEC Filing on Google Icon
3/17/2026Rockefeller Capital Management L.P.108,202$17.08M0.0%-24.3%0.218%Search for SEC Filing on Google Icon
3/11/2026DUTCH ASSET Corp7,330$1.16M0.9%N/A0.015%Search for SEC Filing on Google Icon
3/9/2026Corient Private Wealth LLC10,676$1.69M0.0%+450.0%0.021%Search for SEC Filing on Google Icon
3/6/2026Hsbc Holdings PLC11,464$1.82M0.0%-67.9%0.023%Search for SEC Filing on Google Icon
2/25/2026MidFirst Bank844$0.13M0.0%N/A0.002%Search for SEC Filing on Google Icon
2/24/2026Pacer Advisors Inc.335,018$52.89M0.1%+3,305.0%0.684%Search for SEC Filing on Google Icon
2/19/2026T. Rowe Price Investment Management Inc.330,415$52.16M0.0%N/A0.674%Search for SEC Filing on Google Icon
2/19/2026Invesco Ltd.126,941$20.04M0.0%+18.0%0.259%Search for SEC Filing on Google Icon
2/19/2026Corient Private Wealth LLC2,820$0.45M0.0%+45.3%0.006%Search for SEC Filing on Google Icon
2/19/2026Alberta Investment Management Corp9,800$1.55M0.0%N/A0.020%Search for SEC Filing on Google Icon
2/18/2026Mercer Global Advisors Inc. ADV12,183$1.92M0.0%+84.0%0.025%Search for SEC Filing on Google Icon
2/18/2026Vident Advisory LLC37,074$5.85M0.1%+22.0%0.076%Search for SEC Filing on Google Icon
2/18/2026State of Tennessee Department of Treasury17,575$2.77M0.0%+76.0%0.036%Search for SEC Filing on Google Icon
2/18/2026Mackenzie Financial Corp12,001$1.92M0.0%-1.3%0.024%Search for SEC Filing on Google Icon
2/18/2026NewEdge Advisors LLC4,764$0.75M0.0%-29.1%0.010%Search for SEC Filing on Google Icon
2/18/2026XTX Topco Ltd1,712$0.27M0.0%N/A0.003%Search for SEC Filing on Google Icon
2/18/2026Wellington Management Group LLP1,218,548$192.36M0.1%-12.9%2.486%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: $271.66
Low: $263.41
High: $274.39

50 Day Range

MA: $241.42
Low: $179.70
High: $308.10

52 Week Range

Now: $271.66
Low: $89.40
High: $316.00

Volume

977,296 shs

Average Volume

912,780 shs

Market Capitalization

$13.51 billion

P/E Ratio

126.94

Dividend Yield

N/A

Beta

1.7

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. Paradigm Capital Management Inc. NY — 2.22%
  2. Dimensional Fund Advisors LP — 1.36%
  3. Bank of New York Mellon Corp — 1.14%
  4. Jennison Associates LLC — 1.13%
  5. Allspring Global Investments Holdings LLC — 0.72%
  6. Assenagon Asset Management S.A. — 0.46%
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. Jennison Associates LLC
  2. Principal Financial Group Inc.
  3. Swedbank AB
  4. Bank of New York Mellon Corp
  5. Bessemer Group Inc.
  6. Paradigm Capital Management Inc. NY
  7. Systematic Financial Management LP
  8. First Trust Advisors LP

Which major investors are buying Onto Innovation stock?

In the previous quarter, ONTO stock was bought by institutional investors including:
  1. Stephens Investment Management Group LLC
  2. Allspring Global Investments Holdings LLC
  3. SG Americas Securities LLC
  4. Kornitzer Capital Management Inc. KS
  5. Sei Investments Co.
  6. Dimensional Fund Advisors LP
  7. Y Intercept Hong Kong Ltd
  8. Assenagon Asset Management S.A.

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