ONTO on NYSE

Onto Innovation

American semiconductor company

Onto Innovation Inc. is an American semiconductor company formed in 2019 from the merger of Rudolph Technologies, Inc.3 From Wikipedia, CC BY-SA 4.0

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Last updated Oct 18, 2026.

Overview

$1.0BRevenue, fiscal 20264
$136.8MNet income, fiscal 20264
1940Founded1

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  • TickerONTO on NYSE1
  • IndustryMeasuring & Controlling Devices, NEC1
  • HeadquartersWilmington1
  • Websiteontoinnovation.com
  • Legal formDelaware corporation1
  • Incorporated inDE5
  • Business address16 Jonspin Road, Wilmington, Ma 018875
  • Filer categoryLarge accelerated filer5

Onto Innovation Inc. is an American semiconductor company formed in 2019 from the merger of Rudolph Technologies, Inc. and Nanometrics Incorporated. It is a provider of process and process control equipment and software for microelectronic manufacturing industries (primarily semiconductor device manufacturing).3

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2026

49.7%Gross margin4
13.2%Operating margin4
13.6%Net margin4
6.5%Return on equity4
$299.8MFree cash flow4

What sells

Revenue by product, business segment and region, as the company reports it to the SEC.

Products and services

Systems And Software Revenue brought in 84% of the revenue Onto Innovation broke down this way in fiscal 2025.

  1. Systems And Software Revenue$847.8M484%down 0% from 2024
  2. Parts Revenue$84.2M48%up 10% from 2024
  3. Service Revenue$73.2M47%up 21% from 2024
Products and services by year
Products and services202320242025
Systems And Software Revenue$683.3M$850.4M$847.8M
Parts Revenue$74.6M$76.6M$84.2M
Service Revenue$57.9M$60.3M$73.2M

Regions

Taiwan brought in 32% of the revenue Onto Innovation broke down this way in fiscal 2025.

  1. Taiwan$318.8M432%up 4% from 2024
  2. South Korea$279.4M428%down 2% from 2024
  3. United States$121.1M412%up 16% from 2024
  4. Japan$95.4M49%up 67% from 2024
  5. China$70.7M47%down 39% from 2024
  6. Southeast Asia$64.3M46%down 1% from 2024
  7. Europe$55.6M46%up 8% from 2024
Regions by year
Regions202320242025
Taiwan$141.9M$307.5M$318.8M
South Korea$169.3M$285.7M$279.4M
United States$130.3M$104.1M$121.1M
Japan$93.8M$57.0M$95.4M
China$136.9M$116.4M$70.7M
Southeast Asia$87.6M$64.9M$64.3M
Europe$56.0M$51.7M$55.6M

Where the money goes

Where each dollar of revenue went, fiscal 2026

  • Cost of revenue50¢$505.5M
  • Research and development13¢$132.0M
  • Other costs20¢$204.9M
  • Income tax3¢$26.1M
  • Profit14¢$136.8M

Out of $1.0B in revenue.4

Where each dollar of operating cash went, fiscal 2026

  • Capital spending9¢$28.5M
  • Share buybacks23¢$75.0M
  • Kept or used elsewhere68¢$224.8M

Out of $328.3M of cash from operations.4

Financial statements

Revenue7894$1.0B in 2026+229% since 2019
0$500.0M$1.0B$1.5B2019: $305.9M$305.9M20192020: $556.5M$556.5M2020+82%2022: $1.0B$1.0B2022+81%2023: $815.9M$815.9M2023−19%2024: $987.3M$987.3M2024+21%2026: $1.0B$1.0B2026+2%
Gross profit7894$499.8M in 2026+270% since 2019
0$200.0M$400.0M$600.0M2019: $135.0M$135.0M20192020: $278.5M$278.5M2020+106%2022: $539.2M$539.2M2022+94%2023: $420.3M$420.3M2023−22%2024: $515.3M$515.3M2024+23%2026: $499.8M$499.8M2026−3%
Operating income7894$132.9M in 2026
-$100.0M0$100.0M$200.0M$300.0M2019: -$5.0M-$5.0M20192020: -$26.7M-$26.7M2020+429%2022: $236.7M$236.7M20222023: $116.1M$116.1M2023−51%2024: $187.1M$187.1M2024+61%2026: $132.9M$132.9M2026−29%
Net income894$136.8M in 2026−39% since 2019
0$100.0M$200.0M$300.0M2019: $223.3M$223.3M20192020: $31.0M$31.0M2020−86%2022: $223.3M$223.3M2022+620%2023: $121.2M$121.2M2023−46%2024: $201.7M$201.7M2024+66%2026: $136.8M$136.8M2026−32%

Every line of the income statement as filed: the last 3 fiscal years, latest first.4

Period ending2025-12-312024-12-312023-12-31
Revenue$1.0B$987.3M$815.9M
Cost of revenue$505.5M$472.0M$395.6M
Gross profit$499.8M$515.3M$420.3M
Research and development$132.0M$113.9M$104.4M
Sales and marketing$70.0M$76.0M$61.8M
General and administrative$107.1M$79.9M$79.6M
Amortization$39.4M$49.4M$54.8M
Restructuring cost in operating expenses-$18.4M-$9.0M-$3.6M
Total operating expenses$366.8M$328.2M$304.2M
Operating income (loss)$132.9M$187.1M$116.1M
Interest income, net$35.0M$33.5M$20.4M
Other income (expense), net-$5.0M-$145.0K-$3.9M
Income (loss) before provision (benefit) for income taxes$162.9M$220.4M$132.6M
Provision (benefit) for income taxes$26.1M$18.8M$11.4M
Net income$136.8M$201.7M$121.2M
Basic$2.78$4.09$2.47
Diluted$2.78$4.06$2.46
Basic49.1M shares49.3M shares49.0M shares
Diluted49.3M shares49.7M shares49.3M shares

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The story

Rudolph Research: 1940–1995

Rudolph Technologies, Inc. (RTI) traces its origins to 1940, when Otto Curt Rudolph formed O.C. Rudolph & Sons, Inc. Originally an importer of microscopes and scientific instruments, this RTI predecessor was renamed in October 1970 to Rudolph Research Corporation. The company designed optical equipment for laboratories and universities.

The company Otto Rudolph established continued to evolve, making breakthroughs in ellipsometry including the first production-oriented ellipsometer for thin, transparent film measurements. The company continued development of its metrology products, securing new patents along the way.

Nanometrics: 1975–2019

Nanometrics was founded in 1975 and was a pioneer and innovator in the field of optical metrology. In 1984, the company started publicly trading.

Formation of Rudolph Technologies: 1996–1999

In June 1996, Richard Spanier, Ph.D., chief executive officer of Rudolph Research, forged a partnership agreement with Boston-based Riverside Partners and New York-based Liberty Partners who, along with others, invested in the company. At that time, Dr. Spanier retired his active role in the company and semiconductor industry veteran Paul F. McLaughlin was named as CEO. In August 1999, the name of the company was changed to Rudolph Technologies, Inc.

In November 1999, RTI made its initial public offering of common stock. Revenues grew dramatically, reaching a record $38.1 million. A new facility opened early in the year, and the company launched a new product, the MetaPULSE® line of copper film measurement tools.

Rudolph Technologies: 2000–2019

In July 2002, RTI agreed to acquire the Richardson, Texas-based defect control company ISOA, Inc. A spin-off from Texas Tech University's International Center for Informatics Research, ISOA had been licensing technology to the semiconductor industry for about 16 years, offering defect detection software. The deal was completed in September, with ISOA becoming RTI's Yield Metrology Group.

Several months later, RTI expanded into China by establishing an office in Shanghai's Pudong industrial area. In subsequent years, the company established additional offices in all semiconductor manufacturing regions of the world including Japan, Europe, South Korea, Taiwan and Singapore.

In 2006, a merger was completed with Minnesota-based August Technology Corporation, growing Rudolph's workforce to 550 employees. This acquisition brought Rudolph into the ‘back-end’ of the manufacturing process.

Read the full text

In 2007, the company acquired the semiconductor business of Washington-based Applied Precision LLC, adding probe card test and analysis to the company's portfolio. The acquisition of RVSI Inspection LLC and its Wafer Scanner inspection system was announced in 2008. Adventa Control Technologies, Inc., a provider of process control software, was acquired in 2009, and an acquisition of MKS Instruments, Inc.’s Yield Dynamics business was completed in 2010. Rudolph announced two acquisitions in 2012. NanoPhotonics GmbH, Mainz, Germany (unpatterned wafer inspection); and Azores Corp., Wilmington, MA (Rudolph's entry into the advanced packaging and FPD lithography markets). In 2013, Rudolph announced the acquisition of selected assets of Tamar Technology, Newbury Park, CA, a supplier of 3D metrology technologies. Rudolph acquired the inspection technology of Stella Alliance in 2015, adding patents to enhance its inspection capability.

In November 2015, Rudolph announced the retirement of Paul F. McLaughlin and appointment of Michael P. Plisinski as CEO and Director.

As of January 19, 2017, Rudolph Technologies Inc. had a market capitalization of about $713 million.

In January 2017, Voce Capital Management LLC in a letter to investors, urged merging semiconductor-equipment makers Rudolph Technologies Inc. and Nanometrics Inc. The merger eventually occurred and closed on October 30, 2019. According to the Joint Proxy Statement announcing the terms of the merger, talks began in the first quarter of 2016 and continuing into 2017, Nanometrics and Rudolph engaged in discussions concerning a potential business combination between the two companies, to be structured as a merger of equals transaction, which discussions between the parties are referred to as the 2017 discussions. In connection with the 2017 discussions, in February 2016, Nanometrics and Rudolph entered into a mutual confidentiality agreement, which was subsequently extended in January 2017.

On October 25, 2019, Rudolph merged with Nanometrics Incorporated to become Onto Innovation, trading as NYSE: ONTO.

The company is now headquartered in Wilmington, Massachusetts, with additional U.S. operations in New Jersey, Minnesota, California, Texas, Oregon and Washington.

From Wikipedia’s article on Onto Innovation, shared under CC BY-SA 4.0.6

Leadership

Who has led Onto Innovation, and when. Pick a name to see everywhere that person has worked.

Board members and other officers (47)

Products and brands

Semiconductor fabrication, packaging and testing

Semiconductor device fabrication is the process used to create the integrated circuits that are found in commonly used electronic devices and electrical equipment. It is a multiple-step process during which electronic circuits are gradually built by adding elements and layers of material on a substrate made of pure silicon, or various compounds in the case of specialized applications, hundreds of steps performed by specialized process tools are required before the wafer moves to a final packaging facility.

The focus of packaging and assembly is to ensure an electrical connection from the die to the circuit board, to encapsulate the package for mechanical integrity and to withstand thermal variations. The era of slim form-factor devices, such as smart phones, implies high level of functionality in very dense footprint. Due to these requirements, the challenges in packaging, assembly and test have significantly increased and advanced packaging techniques such as bumping or through-silicon via are necessary.

From Wikipedia’s article on Onto Innovation, shared under CC BY-SA 4.0.6

Former names

  • NANOMETRICS INCSep 8, 1995 to Oct 25, 20195

Timeline

  1. Oct 29, 2019New chief executive Michael P. Plisinski becomes CEO14
  2. Oct 25, 2019Went public Listed on NYSE1
  3. Nov 28, 2017New chief executive Pierre-Yves Lesaicherre becomes CEO15
  4. Aug 28, 2007New chief executive Timothy J. Stultz becomes CEO16
  5. May 25, 2006New chief executive John Davis Heaton becomes CEO17
  6. 1940Founded Founded1

Filings

344 filings to the SEC since October 2021: 5 annual reports, 15 quarterly reports, 52 major events, 208 insider forms, 11 large holders, 53 other. The latest 20:

  1. Oct 1, 20264 PRIMARY DOCUMENT EDGAR
  2. Sep 29, 2026144 EDGAR
  3. Sep 4, 20264 PRIMARY DOCUMENT EDGAR
  4. Sep 4, 20264 PRIMARY DOCUMENT EDGAR
  5. Sep 4, 20264/A PRIMARY DOCUMENT EDGAR
  6. Aug 25, 20264 PRIMARY DOCUMENT EDGAR
  7. Aug 21, 2026144 EDGAR
  8. Aug 10, 20268-K EDGAR
  9. Aug 6, 202610-Q EDGAR
  10. Aug 6, 20268-K EDGAR
  11. May 27, 2026SD EDGAR
  12. May 22, 20264 PRIMARY DOCUMENT EDGAR
  13. May 22, 20264 PRIMARY DOCUMENT EDGAR
  14. May 22, 20264 PRIMARY DOCUMENT EDGAR
  15. May 22, 20264 PRIMARY DOCUMENT EDGAR
  16. May 22, 20264 PRIMARY DOCUMENT EDGAR
  17. May 22, 20264 PRIMARY DOCUMENT EDGAR
  18. May 21, 20268-K EDGAR
  19. May 20, 20268-K EDGAR
  20. May 18, 20264 PRIMARY DOCUMENT EDGAR

The 344 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last three years, summarized. The full record is on SEC EDGAR.

Insider trades and holders

Large holders

Investors who own more than 5% must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively. 11 such filings since October 2021, the latest 10:

  1. Apr 29, 2026SCHEDULE 13G
  2. Apr 29, 2026SCHEDULE 13G
  3. Mar 27, 2026SCHEDULE 13G/A
  4. Oct 17, 2025SCHEDULE 13G/A
  5. Feb 13, 2024SC 13G/A
  6. Jan 23, 2024SC 13G/A
  7. Feb 9, 2023SC 13G/A
  8. Jan 23, 2023SC 13G/A
  9. Feb 10, 2022SC 13G/A
  10. Jan 27, 2022SC 13G/A

From Forms 4 and Schedules 13D and 13G filed with the SEC.

Held by these funds

The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 100. Change is in shares since the quarter before.

FundSharesValueShare of the fundChange
BlackRock, Inc.5,505,181$2.1B0.0%−29,084
Vanguard Portfolio Management LLC2,727,910$1.0B0.0%−15,109
Vanguard Capital Management LLC2,247,737$850.7M0.0%+24,885
State Street Corp1,554,825$588.1M0.0%+55,141
Geode Capital Management, LLC1,433,715$542.7M0.0%+222,701
Invesco Ltd.1,351,886$511.6M0.0%+719,083
Paradigm Capital Management Inc/ny1,101,438$416.8M11.3%−1,000
Point72 Asset Management, L.P.972,161$367.9M0.6%−231,497
Fmr LLC883,298$334.3M0.0%+54,321
Voya Investment Management LLC753,768$284.8M0.3%−163,387
Pictet Asset Management Holding SA716,216$270.6M0.3%+699,880
William Blair Investment Management, LLC665,377$251.8M0.8%−298,836
Norges Bank649,734$245.9M0.0%New
Two Sigma Investments, LP632,976$239.5M0.2%+320,314
Jennison Associates LLC594,166$224.9M0.1%+29,861
Dimensional Fund Advisors LP589,357$223.0M0.0%−88,145
Franklin Resources Inc540,583$204.6M0.0%−38,620
Wellington Management Group Llp539,314$204.1M0.0%−4,578
Charles Schwab Investment Management Inc509,528$192.8M0.0%−20,037
Fisher Asset Management, LLC491,836$186.1M0.1%−158,145
Morgan Stanley488,517$184.9M0.0%+52,492
Geneva Capital Management LLC486,692$184.2M4.2%−219,251
Aqr Capital Management LLC477,129$179.4M0.1%−113,680
Northern Trust Corp454,838$172.1M0.0%−1,179
Bank of New York Mellon Corp428,200$162.1M0.0%−139,605

13F reports cover disclosed long positions in U.S. stocks only.

Members of Congress who traded it

5 trades disclosed by members of Congress. “Vs S&P since” is the stock’s change since the trade minus the S&P 500’s.

DateMemberTradeAmountVs S&P sinceFiling
May 12, 2025Robert P. Bresnahan, Jr.Republican, HouseSale$1,001 - $15,000−115.7%Report
May 9, 2025Robert P. Bresnahan, Jr.Republican, HousePartial sale$1,001 - $15,000−125.3%Report
May 1, 2020Tom MalinowskiDemocratic, HouseSale$1,001 - $15,000−487.1%Report
Apr 30, 2020Tom MalinowskiDemocratic, HouseSale$1,001 - $15,000−448.9%Report
Apr 21, 2020Tom MalinowskiDemocratic, HouseSale$1,001 - $15,000−468.0%Report

Members report amounts as ranges, not exact figures. Returns are price-only (no dividends).

Sources

The numbers on this page point here. Each one links to the record it came from.

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