Who owns Onto Innovation (ONTO)
Which tracked institutional funds hold ONTO, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See ONTO company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on ONTO is one-sided between 2026-Q1 and 2026-Q2: 363 added or opened and 87 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
ONTO’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.0pp gap the other way — the median holder sizes ONTO more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in ONTO divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 645 tracked filers holding ONTO, 356 increased or opened the position and 315 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in ONTO between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 70
- Polar Capital Holdings Plc$154M
- Phoenix Financial Ltd.$152M
- Analog Century Management LP$126M
- TT International Asset Management LTD$92M
- OSSIAM$89M
- SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC$88M
Full exits 53
- Thrivent Financial for Lutherans$152M
- T. Rowe Price Investment Management, Inc.$85M
- Penserra Capital Management LLC$52M
- BRILLIANCE ASSET MANAGEMENT LTD$40M
- VALUE HOLDINGS MANAGEMENT CO. LLC$31M
- BESSEMER GROUP INC$29M
Largest adds
- BlackRock, Inc.$1.2B
- VANGUARD PORTFOLIO MANAGEMENT LLC$470M
- VANGUARD CAPITAL MANAGEMENT LLC$395M
- Invesco Ltd.$394M
- GEODE CAPITAL MANAGEMENT, LLC$294M
- STATE STREET CORP$281M
Largest trims
- JANE STREET GROUP, LLC$123M
- Channing Capital Management, LLC$64M
- Bridgewater Associates, LP$34M
- SG Capital Management LLC$32M
- BNP PARIBAS FINANCIAL MARKETS$29M
- JACOBS LEVY EQUITY MANAGEMENT, INC$25M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 5,505,181 | $2.1B | 13.2% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC trimmed | 2,727,910 | $1.0B | 6.6% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 2,247,737 | $851M | 5.4% | 2026-Q2 |
| STATE STREET CORP added | 1,554,825 | $588M | 3.7% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,433,715 | $543M | 3.4% | 2026-Q2 |
| Invesco Ltd. added | 1,351,886 | $512M | 3.2% | 2026-Q2 |
| PARADIGM CAPITAL MANAGEMENT INC/NY trimmed | 1,101,438 | $417M | 2.6% | 2026-Q2 |
| Point72 Asset Management, L.P. trimmed | 972,161 | $368M | 2.3% | 2026-Q2 |
| FMR LLC added | 883,298 | $334M | 2.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 853,306 | $323M | 2.1% | 2026-Q2 |
| VOYA INVESTMENT MANAGEMENT LLC trimmed | 753,768 | $285M | 1.8% | 2026-Q2 |
| Pictet Asset Management Holding SA added | 716,216 | $271M | 1.7% | 2026-Q2 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC trimmed | 665,377 | $252M | 1.6% | 2026-Q2 |
| NORGES BANK added | 649,734 | $246M | 1.6% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 632,976 | $240M | 1.5% | 2026-Q2 |
| JENNISON ASSOCIATES LLC added | 594,166 | $225M | 1.4% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 589,357 | $223M | 1.4% | 2026-Q2 |
| FRANKLIN RESOURCES INC trimmed | 540,583 | $205M | 1.3% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP trimmed | 539,314 | $204M | 1.3% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 509,528 | $193M | 1.2% | 2026-Q2 |
| Fisher Asset Management, LLC trimmed | 491,836 | $186M | 1.2% | 2026-Q2 |
| MORGAN STANLEY added | 488,517 | $185M | 1.2% | 2026-Q2 |
| GENEVA CAPITAL MANAGEMENT LLC trimmed | 486,692 | $184M | 1.2% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 477,129 | $179M | 1.1% | 2026-Q2 |
| NORTHERN TRUST CORP trimmed | 454,838 | $172M | 1.1% | 2026-Q2 |
| Allspring Global Investments Holdings, LLC added | 435,360 | $153M | 1.0% | 2026-Q2 |
| Bank of New York Mellon Corp trimmed | 428,200 | $162M | 1.0% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 421,430 | $159M | 1.0% | 2026-Q2 |
| Polar Capital Holdings Plc new | 406,645 | $154M | 1.0% | 2026-Q2 |
| Phoenix Financial Ltd. new | 401,813 | $152M | 1.0% | 2026-Q2 |
| D. E. Shaw & Co., Inc. trimmed | 371,752 | $141M | 0.9% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 361,739 | $137M | 0.9% | 2026-Q2 |
| Driehaus Capital Management LLC added | 354,650 | $134M | 0.9% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 342,187 | $130M | 0.8% | 2026-Q2 |
| Analog Century Management LP new | 333,422 | $126M | 0.8% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 316,053 | $120M | 0.8% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC trimmed | 299,900 | $113M | 0.7% | 2026-Q2 |
| WESTFIELD CAPITAL MANAGEMENT CO LP trimmed | 299,383 | $113M | 0.7% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 298,851 | $106M | 0.7% | 2026-Q2 |
| ROYCE & ASSOCIATES LP trimmed | 286,087 | $108M | 0.7% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 272,597 | $103M | 0.7% | 2026-Q2 |
| TT International Asset Management LTD added | 262,038 | $92M | 0.6% | 2026-Q2 |
| Defiance ETFs, LLC trimmed | 246,958 | $87M | 0.6% | 2026-Q2 |
| MARSHALL WACE, LLP trimmed | 241,478 | $91M | 0.6% | 2026-Q2 |
| UBS Group AG trimmed | 237,298 | $90M | 0.6% | 2026-Q2 |
| OSSIAM trimmed | 235,545 | $89M | 0.6% | 2026-Q2 |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC new | 232,000 | $88M | 0.6% | 2026-Q2 |
| FIRST TRUST ADVISORS LP added | 229,868 | $87M | 0.6% | 2026-Q2 |
| GF FUND MANAGEMENT CO. LTD. new | 228,000 | $86M | 0.5% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 221,271 | $45M | 0.3% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE added | 220,852 | $84M | 0.5% | 2026-Q2 |
| TimesSquare Capital Management, LLC trimmed | 217,113 | $82M | 0.5% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC trimmed | 210,566 | $80M | 0.5% | 2026-Q2 |
| GLENVIEW CAPITAL MANAGEMENT, LLC trimmed | 205,791 | $78M | 0.5% | 2026-Q2 |
| Artisan Partners Limited Partnership added | 200,459 | $76M | 0.5% | 2026-Q2 |
| NEUBERGER BERMAN GROUP LLC added | 193,675 | $73M | 0.5% | 2026-Q2 |
| Clearbridge Investments, LLC added | 191,067 | $72M | 0.5% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 187,939 | $71M | 0.5% | 2026-Q2 |
| Artemis Investment Management LLP new | 185,614 | $70M | 0.4% | 2026-Q2 |
| Stephens Investment Management Group LLC added | 185,477 | $70M | 0.4% | 2026-Q2 |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO added | 178,938 | $68M | 0.4% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND trimmed | 169,525 | $64M | 0.4% | 2026-Q2 |
| Boston Partners trimmed | 168,339 | $64M | 0.4% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 167,617 | $63M | 0.4% | 2026-Q2 |
| Nuveen, LLC added | 159,762 | $60M | 0.4% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 158,023 | $60M | 0.4% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 155,253 | $59M | 0.4% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 154,951 | $59M | 0.4% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 152,313 | $58M | 0.4% | 2026-Q2 |
| Robeco Schweiz AG added | 147,200 | $56M | 0.4% | 2026-Q2 |
| Assenagon Asset Management S.A. trimmed | 143,746 | $54M | 0.3% | 2026-Q2 |
| Granahan Investment Management, LLC trimmed | 141,568 | $54M | 0.3% | 2026-Q2 |
| ROYAL BANK OF CANADA trimmed | 136,733 | $52M | 0.3% | 2026-Q2 |
| Munro Partners added | 136,375 | $52M | 0.3% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 133,651 | $51M | 0.3% | 2026-Q2 |
| Grantham, Mayo, Van Otterloo & Co. LLC trimmed | 132,223 | $50M | 0.3% | 2026-Q2 |
| LOOMIS SAYLES & CO L P added | 131,434 | $50M | 0.3% | 2026-Q2 |
| Gotham Asset Management, LLC trimmed | 127,420 | $48M | 0.3% | 2026-Q2 |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ trimmed | 127,290 | $48M | 0.3% | 2026-Q2 |
| SYSTEMATIC FINANCIAL MANAGEMENT LP trimmed | 122,143 | $46M | 0.3% | 2026-Q2 |
| Divisar Capital Management LLC trimmed | 114,253 | $43M | 0.3% | 2026-Q2 |
| SEGALL BRYANT & HAMILL, LLC trimmed | 113,576 | $43M | 0.3% | 2026-Q2 |
| KENNEDY CAPITAL MANAGEMENT LLC trimmed | 111,907 | $42M | 0.3% | 2026-Q2 |
| CREDIT AGRICOLE S A added | 110,257 | $42M | 0.3% | 2026-Q2 |
| GUARDIAN POINT CAPITAL, LP | 110,000 | $42M | 0.3% | 2026-Q2 |
| Talos Eurisko Asset Management LP trimmed | 106,373 | $40M | 0.3% | 2026-Q2 |
| CI INVESTMENTS INC. added | 100,171 | $38M | 0.2% | 2026-Q2 |
| Swiss National Bank added | 99,841 | $38M | 0.2% | 2026-Q2 |
| Bridgewater Associates, LP trimmed | 99,020 | $37M | 0.2% | 2026-Q2 |
| DF DENT & CO INC added | 93,905 | $36M | 0.2% | 2026-Q2 |
| California Public Employees Retirement System added | 91,256 | $35M | 0.2% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 90,293 | $34M | 0.2% | 2026-Q2 |
| South Street Advisors LLC trimmed | 88,920 | $34M | 0.2% | 2026-Q2 |
| EMERALD ADVISERS, LLC trimmed | 87,619 | $33M | 0.2% | 2026-Q2 |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC trimmed | 80,178 | $30M | 0.2% | 2026-Q2 |
| First Eagle Investment Management, LLC added | 79,294 | $30M | 0.2% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 77,281 | $29M | 0.2% | 2026-Q2 |
| NORDEA INVESTMENT MANAGEMENT AB trimmed | 77,184 | $29M | 0.2% | 2026-Q2 |
| Voleon Capital Management LP added | 74,399 | $28M | 0.2% | 2026-Q2 |
| Mizuho Markets Cayman LP new | 72,989 | $28M | 0.2% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.