ONTO INNOVATION INC ONTO
COM · Common Stock · CUSIP 683344105 · ISIN US6833441057
American semiconductor company
- SectorTechnology
- IndustryMeasuring & Controlling Devices, NEC
- HeadquartersWilmington, MA
- Founded1940
- Websiteontoinnovation.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($32.5m this quarter). Holder counts are more reliable. Shares outstanding: 49.0m as of 2025-10-15, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $129.18. Options: 17 managers hold calls ($90.3m notional), 14 hold puts ($39.8m).
Trends to Q3 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 300 |
| Q4 2022 | 298 |
| Q1 2023 | 298 |
| Q2 2023 | 329 |
| Q3 2023 | 360 |
| Q4 2023 | 391 |
| Q1 2024 | 434 |
| Q2 2024 | 508 |
| Q3 2024 | 522 |
| Q4 2024 | 521 |
| Q1 2025 | 475 |
| Q2 2025 | 450 |
| Q3 2025 | 477 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2023 | 189 | 185 |
| Q1 2024 | 201 | 216 |
| Q2 2024 | 262 | 213 |
| Q3 2024 | 284 | 255 |
| Q4 2024 | 242 | 277 |
| Q1 2025 | 244 | 273 |
| Q2 2025 | 230 | 263 |
| Q3 2025 | 264 | 214 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q4 2024 | $25.1m | $16.8m | 0.67 |
| Q1 2025 | $52.3m | $42.9m | 0.82 |
| Q2 2025 | $45.8m | $33.2m | 0.72 |
| Q3 2025 | $90.3m | $39.8m | 0.44 |
Biggest buyers
| WELLINGTON MANAGEMENT GROUP LLP | Added | +1.3m |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Added | +882.9k |
| VOYA INVESTMENT MANAGEMENT LLC | Added | +849.7k |
| FRANKLIN RESOURCES INC | Added | +440.0k |
| MORGAN STANLEY | Added | +338.6k |
| Junto Capital Management LP | New | +308.4k |
| TT International Asset Management LTD | New | +300.7k |
| VANGUARD GROUP INC | Added | +294.4k |
| Assenagon Asset Management S.A. | Added | +290.4k |
| Point72 Asset Management, L.P. | Added | +279.6k |
Biggest sellers
| BlackRock, Inc. | Reduced | -1.3m |
| T. Rowe Price Investment Management, Inc. | Sold out | -984.5k |
| Qube Research & Technologies Ltd | Reduced | -775.5k |
| Rafferty Asset Management, LLC | Sold out | -639.6k |
| BARCLAYS PLC | Reduced | -609.5k |
| FMR LLC | Reduced | -563.4k |
| Cubist Systematic Strategies, LLC | Sold out | -505.7k |
| BANK OF AMERICA CORP /DE/ | Reduced | -422.7k |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | -351.5k |
| UBS Group AG | Reduced | -350.9k |
Biggest calls
| CloudAlpha Capital Management Limited/Hong Kong | New | $32.3m250.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $11.6m90.1k shares |
| BOOTHBAY FUND MANAGEMENT, LLC | New | $8.7m67.2k shares |
| CITADEL ADVISORS LLC | Reduced | $8.4m65.0k shares |
| JANE STREET GROUP, LLC | Reduced | $6.9m53.3k shares |
| PEAK6 LLC | Reduced | $4.9m37.8k shares |
| IMC-Chicago, LLC | New | $4.5m34.5k shares |
| Twin Tree Management, LP | New | $4.0m31.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $3.2m25.1k shares |
| CAPITAL FUND MANAGEMENT S.A. | New | $2.5m19.2k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $11.3m87.7k shares |
| CITADEL ADVISORS LLC | Reduced | $10.3m79.4k shares |
| JANE STREET GROUP, LLC | Reduced | $4.8m37.2k shares |
| WOLVERINE TRADING, LLC | Added | $4.1m31.6k shares |
| IMC-Chicago, LLC | Reduced | $2.3m18.1k shares |
| CAPITAL FUND MANAGEMENT S.A. | New | $1.8m14.3k shares |
| D. E. Shaw & Co., Inc. | Unchanged | $1.4m11.1k shares |
| Walleye Trading LLC | Added | $1.2m9.1k shares |
| PEAK6 LLC | Unchanged | $775.3k6.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $452.0k3.5k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution -1.0 pts · filed 2025-10-17 | 10.3% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.5% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.2% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales in Q3 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 0 | — | 3 | $8.3m | $7.8m |
| Q2 2024 | 0 | — | 2 | $544.6k | $544.6k |
| Q3 2024 | 0 | — | 1 | $264.2k | $264.2k |
| Q4 2024 | 0 | — | 1 | $176.5k | $176.5k |
| Q1 2025 | 0 | — | 2 | $18.2m | $18.2m |
| Q2 2025 | 0 | — | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
None reported in Q3 2025.
Holders, Q3 2025
| Manager | Shares | Change |
|---|---|---|
| VANGUARD GROUP INC 0.01% of their portfolio | 5.7m $732.3m | Added +294.4k |
| BlackRock, Inc. 0.01% of their portfolio | 5.2m $673.7m | Reduced -1.3m |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.66% of their portfolio | 2.0m $256.1m | Added +882.9k |
| STATE STREET CORP 0.01% of their portfolio | 1.5m $190.6m | Reduced -14.3k |
| WELLINGTON MANAGEMENT GROUP LLP 0.03% of their portfolio | 1.4m $180.8m | Added +1.3m |
| FRANKLIN RESOURCES INC 0.04% of their portfolio | 1.1m $144.0m | Added +440.0k |
| PARADIGM CAPITAL MANAGEMENT INC/NY 6.23% of their portfolio | 1.1m $143.8m | Unchanged |
| GENEVA CAPITAL MANAGEMENT LLC 2.40% of their portfolio | 1.1m $140.1m | Added +2.8k |
| D. E. Shaw & Co., Inc. 0.10% of their portfolio | 1.0m $129.6m | Added +8.8k |
| VOYA INVESTMENT MANAGEMENT LLC 0.11% of their portfolio | 868.6k $112.0m | Added +849.7k |
| FMR LLC 0.01% of their portfolio | 830.2k $107.3m | Reduced -563.4k |
| MORGAN STANLEY 0.01% of their portfolio | 790.4k $102.1m | Added +338.6k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio | 776.1k $100.3m | Added +256.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 775.2k $100.2m | Reduced -102.8k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 698.6k $90.3m | Reduced -78.5k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 682.3k $88.2m | Added +170.2k |
| Fisher Asset Management, LLC 0.03% of their portfolio | 656.0k $84.8m | Added +118.6k |
| UBS Group AG 0.02% of their portfolio | 632.9k $81.8m | Reduced -350.9k |
| MILLENNIUM MANAGEMENT LLC 0.06% of their portfolio | 599.7k $77.5m | Reduced -122.1k |
| ROYAL BANK OF CANADA 0.01% of their portfolio | 567.1k $73.3m | Reduced -149.5k |
| Thrivent Financial for Lutherans 0.13% of their portfolio | 509.8k $65.9m | Added +215.3k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 502.4k $64.9m | Added +147.8k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 487.2k $63.0m | Added +18.6k |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.26% of their portfolio | 474.5k $61.3m | Added +123.5k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 462.5k $59.8m | Added +35.9k |
| Assenagon Asset Management S.A. 0.08% of their portfolio | 428.0k $55.3m | Added +290.4k |
| TWO SIGMA INVESTMENTS, LP 0.08% of their portfolio | 399.2k $51.6m | Reduced -207.9k |
| CITADEL ADVISORS LLC 0.04% of their portfolio | 391.3k $50.6m | Added +102.2k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.04% of their portfolio | 355.9k $46.0m | Reduced -72.6k |
| RAYMOND JAMES FINANCIAL INC 0.01% of their portfolio | 316.1k $40.8m | Added +39.3k |
| Junto Capital Management LP 0.83% of their portfolio | 308.4k $39.9m | New |
| ROYCE & ASSOCIATES LP 0.40% of their portfolio | 307.5k $39.7m | Added +46.2k |
| SEGALL BRYANT & HAMILL, LLC 0.53% of their portfolio | 305.2k $39.4m | Added +257.2k |
| TT International Asset Management LTD 7.52% of their portfolio | 300.7k $38.9m | New |
| Point72 Asset Management, L.P. 0.08% of their portfolio | 285.2k $36.9m | Added +279.6k |
| Penserra Capital Management LLC 0.43% of their portfolio | 277.4k $35.8m | Added +83.9k |
| TWO SIGMA ADVISERS, LP 0.07% of their portfolio | 275.5k $35.6m | Reduced -215.3k |
| SG Capital Management LLC 3.51% of their portfolio | 270.8k $35.0m | New |
| GLENVIEW CAPITAL MANAGEMENT, LLC 0.85% of their portfolio | 270.6k $35.0m | New |
| HRT FINANCIAL LP 0.14% of their portfolio | 239.5k $30.9m | Added +175.5k |
| OSSIAM 0.40% of their portfolio | 239.4k $30.9m | Added +3.9k |
| PANAGORA ASSET MANAGEMENT INC 0.12% of their portfolio | 238.4k $30.8m | Added +8.4k |
| BRILLIANCE ASSET MANAGEMENT LTD 15.07% of their portfolio | 218.6k $28.2m | New |
| Clearbridge Investments, LLC 0.02% of their portfolio | 217.0k $28.0m | Added +31.0k |
| BNP PARIBAS FINANCIAL MARKETS 0.02% of their portfolio | 214.6k $27.7m | Reduced -351.5k |
| TimesSquare Capital Management, LLC 0.40% of their portfolio | 214.3k $27.7m | Added +94.8k |
| FIRST TRUST ADVISORS LP 0.02% of their portfolio | 206.7k $26.7m | Added +98.2k |
| Gotham Asset Management, LLC 0.11% of their portfolio | 201.4k $26.0m | Added +155.1k |
| SYSTEMATIC FINANCIAL MANAGEMENT LP 0.62% of their portfolio | 197.0k $25.5m | Added +33.0k |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ 0.14% of their portfolio | 195.2k $25.2m | Added +32.4k |
| BESSEMER GROUP INC 0.04% of their portfolio | 189.7k $24.5m | Added +65.0k |
| MARSHALL WACE, LLP 0.03% of their portfolio | 184.8k $23.9m | New |
| Point72 Hong Kong Ltd 1.08% of their portfolio | 181.1k $23.4m | Added +81.5k |
| Divisar Capital Management LLC 6.16% of their portfolio | 175.1k $22.6m | Added +61.0k |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 168.6k $21.8m | Reduced -3.2k |
| SIRIOS CAPITAL MANAGEMENT L P 2.75% of their portfolio | 163.2k $21.1m | New |
| CloudAlpha Capital Management Limited/Hong Kong 1.87% of their portfolio | 161.4k $20.9m | New |
| Jain Global LLC 0.26% of their portfolio | 152.6k $19.7m | Added +125.0k |
| VALUE HOLDINGS MANAGEMENT CO. LLC 3.16% of their portfolio | 152.4k $19.7m | Unchanged |
| Robeco Schweiz AG 0.44% of their portfolio | 151.9k $19.6m | Added +20.0k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 150.1k $19.4m | Reduced -226.4k |
| AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 148.1k $19.1m | Reduced -185.9k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 145.5k $18.8m | Added +34.6k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 144.8k $18.7m | Reduced -72.9k |
| Rockefeller Capital Management L.P. 0.04% of their portfolio | 143.0k $18.5m | Added +11.6k |
| CAPITAL FUND MANAGEMENT S.A. 0.18% of their portfolio | 138.6k $17.9m | Added +43.6k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 136.0k $17.6m | Reduced -422.7k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 133.5k $17.3m | Reduced -9.1k |
| CREDIT AGRICOLE S A 0.06% of their portfolio | 132.3k $17.1m | First filing |
| Channing Capital Management, LLC 0.44% of their portfolio | 130.0k $16.8m | New |
| EMERALD ADVISERS, LLC 0.53% of their portfolio | 127.6k $16.5m | Reduced -2.6k |
| Alta Park Capital, LP 1.64% of their portfolio | 126.1k $16.3m | New |
| Tidal Investments LLC 0.07% of their portfolio | 125.7k $16.2m | Added +11.2k |
| Qube Research & Technologies Ltd 0.02% of their portfolio | 125.7k $16.2m | Reduced -775.5k |
| Nuveen, LLC 0.00% of their portfolio | 124.1k $16.0m | Reduced -37.0k |
| PALISADE CAPITAL MANAGEMENT, LP 0.41% of their portfolio | 117.5k $15.2m | Reduced -1.4k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.02% of their portfolio | 117.2k $15.1m | Added +46.1k |
| LAZARD ASSET MANAGEMENT LLC 0.02% of their portfolio | 117.1k $15.1m | Added +23.2k |
| Walleye Capital LLC 0.12% of their portfolio | 114.9k $14.8m | Reduced -136.3k |
| VICTORY CAPITAL MANAGEMENT INC 0.01% of their portfolio | 113.9k $14.7m | Added +92.3k |
| Swedbank AB 0.01% of their portfolio | 112.5k $14.5m | Unchanged |
| Amundi 0.01% of their portfolio | 110.0k $16.0m | Reduced -108.3k |
| Andar Capital Management HK Ltd 14.38% of their portfolio | 110.0k $14.2m | New |
| Allspring Global Investments Holdings, LLC 0.02% of their portfolio | 109.2k $15.0m | Added +8.1k |
| Invesco Ltd. 0.00% of their portfolio | 107.6k $13.9m | Reduced -11.9k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 107.6k $13.9m | Added +23.7k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.00% of their portfolio | 102.3k $13.2m | Reduced -340.1k |
| ExodusPoint Capital Management, LP 0.18% of their portfolio | 100.7k $13.0m | New |
| Driehaus Capital Management LLC 0.09% of their portfolio | 100.5k $13.0m | New |
| ING GROEP NV 0.07% of their portfolio | 96.9k $12.5m | Added +43.3k |
| Swiss National Bank 0.01% of their portfolio | 94.8k $12.3m | Added +1.6k |
| Legal & General Group Plc 0.00% of their portfolio | 94.6k $12.2m | Reduced -8.0k |
| NORDEA INVESTMENT MANAGEMENT AB 0.01% of their portfolio | 93.8k $12.2m | Added +3.7k |
| BARCLAYS PLC 0.00% of their portfolio | 93.1k $12.0m | Reduced -609.5k |
| Monolith Management Ltd 5.30% of their portfolio | 93.0k $12.0m | New |
| South Street Advisors LLC 1.54% of their portfolio | 91.1k $11.8m | Added +4.6k |
| FEDERATED HERMES, INC. 0.02% of their portfolio | 87.7k $11.3m | Reduced -297.3k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.02% of their portfolio | 87.2k $11.3m | Added +72.4k |
| Tairen Capital Ltd 1.21% of their portfolio | 86.3k $11.2m | New |
| Treasurer of the State of North Carolina 0.03% of their portfolio | 84.2k $10.9m | Reduced -903 |