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 ($12.6m this quarter). Holder counts are more reliable. Shares outstanding: 49.0m as of 2025-07-15, 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 ≈ $100.97. Options: 13 managers hold calls ($45.8m notional), 17 hold puts ($33.2m).
Trends to Q2 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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 174 | 174 |
| 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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $46.4m | $23.2m | 0.50 |
| Q4 2024 | $25.1m | $16.8m | 0.67 |
| Q1 2025 | $52.3m | $42.9m | 0.82 |
| Q2 2025 | $45.8m | $33.2m | 0.72 |
Biggest buyers
| T. Rowe Price Investment Management, Inc. | Added | +969.1k |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Added | +952.4k |
| Qube Research & Technologies Ltd | Added | +845.2k |
| D. E. Shaw & Co., Inc. | Added | +772.9k |
| UBS Group AG | Added | +771.1k |
| TWO SIGMA INVESTMENTS, LP | Added | +601.9k |
| MILLENNIUM MANAGEMENT LLC | Added | +572.8k |
| Cubist Systematic Strategies, LLC | New | +505.7k |
| TWO SIGMA ADVISERS, LP | New | +490.8k |
| BNP PARIBAS FINANCIAL MARKETS | Added | +438.2k |
Biggest sellers
| JPMORGAN CHASE & CO | Reduced | -1.9m |
| Invesco Ltd. | Reduced | -1.2m |
| MACQUARIE GROUP LTD | Sold out | -1.0m |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | Reduced | -849.0k |
| Situational Awareness LP | Sold out | -586.7k |
| FRANKLIN RESOURCES INC | Reduced | -533.2k |
| CONGRESS ASSET MANAGEMENT CO | Reduced | -448.7k |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -383.2k |
| Pictet Asset Management Holding SA | Reduced | -301.0k |
| Grantham, Mayo, Van Otterloo & Co. LLC | Sold out | -284.6k |
Biggest calls
| JANE STREET GROUP, LLC | Added | $15.8m156.5k shares |
| PEAK6 LLC | Added | $8.7m86.2k shares |
| CITADEL ADVISORS LLC | Added | $8.4m83.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $4.3m42.6k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $4.0m40.0k shares |
| JPMORGAN CHASE & CO | Unchanged | $1.2m12.2k shares |
| Cubist Systematic Strategies, LLC | Reduced | $1.2m12.1k shares |
| WOLVERINE TRADING, LLC | Added | $929.5k9.4k shares |
| TUDOR INVESTMENT CORP ET AL | Added | $757.0k7.5k shares |
| Walleye Trading LLC | Reduced | $272.5k2.7k shares |
Biggest puts
| CITADEL ADVISORS LLC | Added | $10.4m102.6k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $7.3m72.7k shares |
| JANE STREET GROUP, LLC | Added | $3.8m38.1k shares |
| WOLVERINE TRADING, LLC | Added | $2.6m26.1k shares |
| Twin Tree Management, LP | Reduced | $2.4m23.8k shares |
| IMC-Chicago, LLC | Added | $2.1m21.3k shares |
| D. E. Shaw & Co., Inc. | New | $1.1m11.1k shares |
| TUDOR INVESTMENT CORP ET AL | Added | $827.6k8.2k shares |
| Cubist Systematic Strategies, LLC | Reduced | $646.0k6.4k shares |
| PEAK6 LLC | Added | $605.6k6.0k 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 Q2 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 |
|---|---|---|---|---|---|
| Q3 2023 | 0 | — | 4 | $5.0m | $4.8m |
| 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 | — | — |
None reported in Q2 2025.
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.01% of their portfolio | 6.5m $654.6m | Added +287.8k |
| VANGUARD GROUP INC 0.01% of their portfolio | 5.4m $542.3m | Added +212.8k |
| STATE STREET CORP 0.01% of their portfolio | 1.5m $150.3m | Reduced -29.5k |
| FMR LLC 0.01% of their portfolio | 1.4m $140.7m | Added +367.9k |
| PARADIGM CAPITAL MANAGEMENT INC/NY 5.47% of their portfolio | 1.1m $112.3m | Added +7.9k |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.29% of their portfolio | 1.1m $110.9m | Added +952.4k |
| GENEVA CAPITAL MANAGEMENT LLC 1.83% of their portfolio | 1.1m $109.2m | Added +66.3k |
| D. E. Shaw & Co., Inc. 0.10% of their portfolio | 994.0k $100.3m | Added +772.9k |
| T. Rowe Price Investment Management, Inc. 0.06% of their portfolio | 984.5k $99.4m | Added +969.1k |
| UBS Group AG 0.02% of their portfolio | 983.9k $99.3m | Added +771.1k |
| Qube Research & Technologies Ltd 0.13% of their portfolio | 901.2k $91.0m | Added +845.2k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 878.0k $88.6m | Reduced -1.5k |
| DIMENSIONAL FUND ADVISORS LP 0.02% of their portfolio | 777.1k $78.4m | Added +85.4k |
| MILLENNIUM MANAGEMENT LLC 0.07% of their portfolio | 721.9k $72.9m | Added +572.8k |
| ROYAL BANK OF CANADA 0.01% of their portfolio | 716.6k $72.3m | Added +290.8k |
| NORGES BANK 0.01% of their portfolio | 713.0k $72.0m | Added +110.8k |
| BARCLAYS PLC 0.03% of their portfolio | 702.6k $70.9m | Added +355.3k |
| FRANKLIN RESOURCES INC 0.02% of their portfolio | 674.5k $68.1m | Reduced -533.2k |
| Rafferty Asset Management, LLC 0.21% of their portfolio | 639.6k $64.6m | Added +246.4k |
| TWO SIGMA INVESTMENTS, LP 0.11% of their portfolio | 607.1k $61.3m | Added +601.9k |
| BNP PARIBAS FINANCIAL MARKETS 0.04% of their portfolio | 566.1k $57.1m | Added +438.2k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 558.7k $56.4m | Added +205.0k |
| Fisher Asset Management, LLC 0.02% of their portfolio | 537.4k $54.2m | Reduced -46.1k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio | 519.1k $52.4m | Added +4.0k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 512.1k $51.7m | Reduced -1.9m |
| Cubist Systematic Strategies, LLC 0.55% of their portfolio | 505.7k $51.0m | New |
| TWO SIGMA ADVISERS, LP 0.10% of their portfolio | 490.8k $49.5m | New |
| Bank of New York Mellon Corp 0.01% of their portfolio | 468.7k $47.3m | Added +26.5k |
| MORGAN STANLEY 0.00% of their portfolio | 451.8k $45.6m | Added +163.4k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio | 442.4k $44.7m | Reduced -849.0k |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.04% of their portfolio | 428.5k $43.2m | Added +178.8k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 426.6k $43.1m | Reduced -44.9k |
| FEDERATED HERMES, INC. 0.07% of their portfolio | 385.0k $38.9m | Added +296.7k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 376.5k $38.0m | Reduced -105.8k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 354.6k $35.8m | Added +4.7k |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.15% of their portfolio | 351.1k $35.4m | Added +147.5k |
| AQR CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 334.0k $33.7m | Added +316.4k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.12% of their portfolio | 318.7k $32.2m | New |
| Thrivent Financial for Lutherans 0.07% of their portfolio | 294.6k $29.7m | Reduced -105.5k |
| CITADEL ADVISORS LLC 0.03% of their portfolio | 289.1k $29.2m | Added +285.9k |
| CITIGROUP INC 0.02% of their portfolio | 286.7k $28.9m | Added +52.3k |
| BANK OF NOVA SCOTIA 0.06% of their portfolio | 280.4k $28.3m | New |
| RAYMOND JAMES FINANCIAL INC 0.01% of their portfolio | 276.8k $27.9m | Reduced -13.6k |
| ROYCE & ASSOCIATES LP 0.27% of their portfolio | 261.3k $26.4m | Added +41.7k |
| Walleye Capital LLC 0.23% of their portfolio | 251.1k $25.3m | Added +156.7k |
| OSSIAM 0.27% of their portfolio | 235.5k $23.8m | New |
| PANAGORA ASSET MANAGEMENT INC 0.10% of their portfolio | 230.0k $23.2m | Added +58.2k |
| Squarepoint Ops LLC 0.05% of their portfolio | 221.1k $22.3m | Added +185.4k |
| Jump Financial, LLC 0.27% of their portfolio | 219.2k $22.1m | Added +206.4k |
| Amundi 0.01% of their portfolio | 218.3k $22.6m | Reduced -129.6k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 217.6k $22.0m | Added +54.4k |
| Penserra Capital Management LLC 0.27% of their portfolio | 193.5k $19.5m | Added +78.1k |
| Bridgewater Associates, LP 0.08% of their portfolio | 190.6k $19.2m | Reduced -21.1k |
| Clearbridge Investments, LLC 0.02% of their portfolio | 186.0k $18.8m | Unchanged |
| Stephens Investment Management Group LLC 0.24% of their portfolio | 182.3k $18.4m | Reduced -105.2k |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 171.9k $17.3m | Reduced -49.7k |
| Man Group plc 0.04% of their portfolio | 167.6k $16.9m | Reduced -30.9k |
| Engineers Gate Manager LP 0.21% of their portfolio | 166.4k $16.8m | Added +120.0k |
| SYSTEMATIC FINANCIAL MANAGEMENT LP 0.44% of their portfolio | 164.0k $16.6m | Added +6.9k |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ 0.09% of their portfolio | 162.8k $16.4m | Added +170 |
| Nuveen, LLC 0.00% of their portfolio | 161.2k $16.3m | Reduced -51.9k |
| Port Capital LLC 0.67% of their portfolio | 156.6k $15.8m | Reduced -37.5k |
| VALUE HOLDINGS MANAGEMENT CO. LLC 2.72% of their portfolio | 152.4k $15.4m | Added +13.0k |
| TUDOR INVESTMENT CORP ET AL 0.12% of their portfolio | 151.3k $15.3m | New |
| Aquatic Capital Management LLC 0.29% of their portfolio | 144.1k $14.5m | New |
| Quantbot Technologies LP 0.37% of their portfolio | 143.0k $14.4m | Added +139.2k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 142.6k $14.4m | Added +4.9k |
| Assenagon Asset Management S.A. 0.02% of their portfolio | 137.6k $13.9m | Added +61.8k |
| Robeco Schweiz AG 0.31% of their portfolio | 131.9k $13.3m | Unchanged |
| Rockefeller Capital Management L.P. 0.02% of their portfolio | 131.4k $13.3m | Added +53.4k |
| EMERALD ADVISERS, LLC 0.48% of their portfolio | 130.2k $13.1m | New |
| BESSEMER GROUP INC 0.02% of their portfolio | 124.6k $12.6m | Added +42.4k |
| Trexquant Investment LP 0.14% of their portfolio | 123.6k $12.5m | Added +46.8k |
| Invesco Ltd. 0.00% of their portfolio | 119.5k $12.1m | Reduced -1.2m |
| TimesSquare Capital Management, LLC 0.17% of their portfolio | 119.5k $12.1m | Reduced -51.3k |
| PALISADE CAPITAL MANAGEMENT, LP 0.34% of their portfolio | 119.0k $12.0m | Reduced -3.5k |
| Tidal Investments LLC 0.08% of their portfolio | 114.5k $11.6m | Added +50.3k |
| Divisar Capital Management LLC 2.66% of their portfolio | 114.1k $11.5m | Added +91.0k |
| Swedbank AB 0.01% of their portfolio | 112.5k $11.4m | First filing |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 111.0k $11.2m | Reduced -2.9k |
| JANE STREET GROUP, LLC 0.02% of their portfolio | 110.8k $11.2m | Reduced -23.4k |
| FIRST TRUST ADVISORS LP 0.01% of their portfolio | 108.5k $11.0m | Added +68.3k |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 106.2k $10.7m | Reduced -383.2k |
| Legal & General Group Plc 0.00% of their portfolio | 102.5k $10.4m | Added +1.2k |
| Allspring Global Investments Holdings, LLC 0.02% of their portfolio | 101.0k $10.1m | Reduced -201.7k |
| Point72 Hong Kong Ltd 0.70% of their portfolio | 99.5k $10.0m | New |
| CAPITAL FUND MANAGEMENT S.A. 0.11% of their portfolio | 95.0k $9.6m | Added +13.2k |
| LAZARD ASSET MANAGEMENT LLC 0.01% of their portfolio | 94.0k $9.5m | Reduced -219.4k |
| CI INVESTMENTS INC. 0.04% of their portfolio | 93.3k $9.4m | Reduced -13.4k |
| Swiss National Bank 0.01% of their portfolio | 93.2k $9.4m | Reduced -2.5k |
| NORDEA INVESTMENT MANAGEMENT AB 0.01% of their portfolio | 90.1k $9.1m | Added +330 |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.02% of their portfolio | 87.8k $8.9m | Added +51.5k |
| South Street Advisors LLC 1.29% of their portfolio | 86.5k $8.7m | Reduced -3.2k |
| Treasurer of the State of North Carolina 0.03% of their portfolio | 85.1k $8.6m | Added +62.7k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 83.9k $8.5m | Reduced -92.3k |
| California Public Employees Retirement System 0.01% of their portfolio | 81.4k $8.2m | Added +3.4k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 79.5k $8.0m | Added +22.1k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 76.8k $7.7m | New |
| EMERALD MUTUAL FUND ADVISERS TRUST 0.46% of their portfolio | 75.4k $7.6m | New |
| Mirae Asset Global Investments Co., Ltd. 0.03% of their portfolio | 74.3k $7.5m | Added +4.0k |