ONTO INNOVATION INC (ONTO) Institutional Shareholders
ONTO INNOVATION INC (ONTO) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $9.89B in ONTO holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of ONTO tracked by InsiderSet, reporting ownership valued at approximately $1.13B in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $1.43B, representing an estimated gain of +26.09% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 39% of the total disclosed ONTO value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Portfolio Management Llc, Vanguard Capital Management Llc, and several other long-term asset managers with concentrated positions in ONTO INNOVATION INC (ONTO).
This page ranks the largest institutional ONTO shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
617
Total Reported Value
$9.89B
Largest Holder
Blackrock, Inc.
Largest Position
$1.13B
Insider Transactions (90d)
6
Latest Filing Quarter
Q2 2026
New Institutional Positions
102
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.02% | 5,534,265 | $1,134,911,826 | $1,431,050,244 | +$296,138,418 | +26.09% | |
| Vanguard Portfolio Management Llc | 0.03% | 2,743,019 | $562,510,906 | $709,289,853 | +$146,778,947 | +26.09% | |
| Vanguard Capital Management Llc | 0.01% | 2,222,852 | $455,840,260 | $574,785,070 | +$118,944,810 | +26.09% | |
| State Street Corp | 0.01% | 1,499,684 | $307,625,917 | $387,788,289 | +$80,162,372 | +26.06% | |
| Pictet Asset Management Holding Sa | 0.26% | 716,216 | $270,565,945 | $185,199,133 | -$85,366,812 | -31.55% | |
| Geode Capital Management, Llc | 0.02% | 1,211,014 | $248,389,818 | $313,144,000 | +$64,754,182 | +26.07% | |
| Point72 Asset Management, L.P. | 0.43% | 1,203,658 | $246,834,146 | $311,241,886 | +$64,407,740 | +26.09% | |
| Paradigm Capital Management Inc/Ny | 8.65% | 1,102,438 | $226,076,961 | $285,068,418 | +$58,991,457 | +26.09% | |
| Jennison Associates Llc | 0.13% | 594,166 | $224,862,124 | $153,639,444 | -$71,222,680 | -31.67% | |
| William Blair Investment Management, Llc | 0.65% | 964,213 | $197,731,160 | $249,326,198 | +$51,595,038 | +26.09% | |
| Voya Investment Management Llc | 0.20% | 917,155 | $187,789,813 | $237,157,940 | +$49,368,127 | +26.29% | |
| Fmr Llc | 0.01% | 828,977 | $169,998,374 | $214,356,873 | +$44,358,499 | +26.09% | |
| D. E. Shaw & Co., Inc. | 0.12% | 722,578 | $148,179,070 | $186,844,219 | +$38,665,149 | +26.09% | |
| Geneva Capital Management Llc | 3.08% | 705,943 | $144,767,813 | $182,542,741 | +$37,774,928 | +26.09% | |
| Dimensional Fund Advisors Lp | 0.03% | 677,502 | $138,898,429 | $175,188,467 | +$36,290,038 | +26.13% | |
| Fisher Asset Management, Llc | 0.05% | 649,981 | $133,291,602 | $168,072,087 | +$34,780,485 | +26.09% | |
| Invesco Ltd. | 0.02% | 632,803 | $129,768,912 | $163,630,200 | +$33,861,288 | +26.09% | |
| Jane Street Group, Llc | 0.13% | 604,688 | $124,003,368 | $156,360,223 | +$32,356,855 | +26.09% | |
| Aqr Capital Management Llc | 0.06% | 590,809 | $121,157,201 | $152,771,391 | +$31,614,190 | +26.09% | |
| Franklin Resources Inc | 0.03% | 579,203 | $118,777,178 | $149,770,312 | +$30,993,134 | +26.09% | |
| Bank Of New York Mellon Corp | 0.02% | 567,805 | $116,439,827 | $146,823,017 | +$30,383,190 | +26.09% | |
| Wellington Management Group Llp | 0.02% | 543,892 | $111,535,933 | $140,639,593 | +$29,103,660 | +26.09% | |
| Charles Schwab Investment Management Inc | 0.02% | 529,565 | $108,597,895 | $136,934,918 | +$28,337,023 | +26.09% | |
| Marshall Wace, Llp | 0.11% | 483,070 | $99,063,165 | $124,912,241 | +$25,849,076 | +26.09% | |
| Goldman Sachs Group Inc | 0.01% | 482,278 | $98,900,750 | $124,707,445 | +$25,806,695 | +26.09% | |
| Northern Trust Corp | 0.01% | 456,017 | $93,515,408 | $117,916,876 | +$24,401,468 | +26.09% | |
| Tt International Asset Management Ltd | 11.75% | 262,038 | $92,069,672 | $67,757,786 | -$24,311,886 | -26.41% | |
| Ubs Group Ag | 0.02% | 439,435 | $90,114,935 | $113,629,102 | +$23,514,167 | +26.09% | |
| Morgan Stanley | 0.01% | 436,025 | $89,415,897 | $112,747,345 | +$23,331,448 | +26.09% | |
| Allspring Global Investments Holdings, Llc | 0.13% | 359,998 | $76,218,684 | $93,088,283 | +$16,869,599 | +22.13% | |
| Bridgewater Associates, Lp | 0.32% | 348,405 | $71,447,413 | $90,090,565 | +$18,643,152 | +26.09% | |
| Artemis Investment Management Llp | 0.63% | 185,614 | $70,245,618 | $47,996,068 | -$22,249,550 | -31.67% | |
| Stephens Investment Management Group Llc | 0.75% | 185,477 | $70,193,771 | $47,960,643 | -$22,233,128 | -31.67% | |
| Westfield Capital Management Co Lp | 0.28% | 326,960 | $67,049,687 | $84,545,317 | +$17,495,630 | +26.09% | |
| Driehaus Capital Management Llc | 0.48% | 320,534 | $65,731,907 | $82,883,682 | +$17,151,775 | +26.09% | |
| Royce & Associates Lp | 0.64% | 317,109 | $65,029,543 | $81,998,045 | +$16,968,502 | +26.09% | |
| New York State Common Retirement Fund | 0.08% | 169,525 | $64,156,736 | $43,835,775 | -$20,320,962 | -31.67% | |
| Two Sigma Investments, Lp | 0.05% | 312,662 | $64,117,596 | $80,848,140 | +$16,730,544 | +26.09% | |
| Vanguard Fiduciary Trust Co | 0.02% | 310,154 | $63,603,281 | $80,199,621 | +$16,596,340 | +26.09% | |
| Ameriprise Financial Inc | 0.01% | 309,404 | $63,449,960 | $80,005,686 | +$16,555,726 | +26.09% | |
| Glenview Capital Management, Llc | 1.66% | 299,721 | $61,463,785 | $77,501,856 | +$16,038,071 | +26.09% | |
| Citadel Advisors Llc | 0.04% | 296,570 | $60,817,610 | $76,687,071 | +$15,869,461 | +26.09% | |
| Bnp Paribas Financial Markets | 0.04% | 282,350 | $57,901,514 | $73,010,063 | +$15,108,549 | +26.09% | |
| Robeco Schweiz Ag | 0.89% | 147,200 | $55,707,840 | $38,062,976 | -$17,644,864 | -31.67% | |
| Timessquare Capital Management, Llc | 0.93% | 267,934 | $54,945,225 | $69,282,374 | +$14,337,149 | +26.09% | |
| Assenagon Asset Management S.A. | 0.07% | 143,746 | $54,400,674 | $37,169,841 | -$17,230,833 | -31.67% | |
| Defiance Etfs, Llc | 0.74% | 249,860 | $51,238,790 | $64,608,799 | +$13,370,009 | +26.09% | |
| Raymond James Financial Inc | 0.02% | 252,923 | $49,921,289 | $65,400,829 | +$15,479,540 | +31.01% | |
| Fort Washington Investment Advisors Inc | 0.24% | 127,290 | $48,172,901 | $32,914,648 | -$15,258,253 | -31.67% | |
| Sg Capital Management Llc | 3.87% | 229,486 | $47,060,694 | $59,340,490 | +$12,279,796 | +26.09% |
Frequently asked questions about ONTO
Who owns the most ONTO stock?
The largest holders of ONTO are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for ONTO INNOVATION INC (ONTO).
Is ONTO widely held by superinvestors?
Many widely followed stocks like ONTO appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly ONTO is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.