ONTO
ONTO INNOVATION INC.
Measuring & Controlling Devices, NECNYSELarge accelerated filer
Total Trades
24
Buys
0
Sells
24
Largest Trade
$1M+
Insiders
8
Institutional Funds
418
Inst. Value
$1M+
Activist Filings
7
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Plisinski Michael P | CEO | SELL | $1M+ | 35K | $219.19 | Jan 22, 2025 |
| Plisinski Michael P | CEO | SELL | $1M+ | 30K | $211.24 | Jan 21, 2025 |
| Vedula Srinivas | SVP | SELL | $100K–$500K | 827 | $205.00 | Jan 16, 2025 |
| Plisinski Michael P | CEO | SELL | $1M+ | 20K | $200.19 | Jan 16, 2025 |
| Slicer Mark | CFO | SELL | $100K–$500K | 1K | $160.41 | Nov 18, 2024 |
| Vedula Srinivas | SVP | SELL | $100K–$500K | 1K | $213.40 | Jun 11, 2024 |
| Slicer Mark | CFO | SELL | $100K–$500K | 1K | $219.19 | Jun 10, 2024 |
| Plisinski Michael P | CEO | SELL | $1M+ | 40K | $175.48 | Mar 22, 2024 |
| MILLER DAVID BRIAN | Director | SELL | $100K–$500K | 3K | $170.49 | Feb 13, 2024 |
| Slicer Mark | CFO | SELL | $100K–$500K | 3K | $125.14 | Sep 18, 2023 |
| Fiordalice Robert | SVP & GM | SELL | $500K+ | 7K | $125.19 | Sep 18, 2023 |
| Vedula Srinivas | SVP | SELL | $100K–$500K | 1K | $137.00 | Sep 5, 2023 |
| Plisinski Michael P | CEO | SELL | $1M+ | 31K | $112.85 | Aug 22, 2023 |
| Jin Ju | SVP & GM, IBU | SELL | $100K–$500K | 3K | $105.17 | Jun 16, 2023 |
| Jin Ju | SVP & GM, IBU | SELL | $100K–$500K | 1K | $107.72 | Jun 6, 2023 |
| Fiordalice Robert | SVP, GM MBU | SELL | $50K–$100K | 846 | $109.40 | May 30, 2023 |
| MILLER DAVID BRIAN | Director | SELL | $100K–$500K | 5K | $99.69 | May 25, 2023 |
| Fiordalice Robert | SVP, GM MBU | SELL | $50K–$100K | 780 | $101.25 | May 22, 2023 |
| Fiordalice Robert | SVP, GM MBU | SELL | $50K–$100K | 768 | $97.20 | May 18, 2023 |
| Fiordalice Robert | SVP, GM MBU | SELL | $50K–$100K | 669 | $93.15 | May 17, 2023 |
| Jin Ju | SVP & GM, IBU | SELL | $100K–$500K | 2K | $95.00 | May 17, 2023 |
| Fiordalice Robert | Sr. Vice President & GM | SELL | $50K–$100K | 662 | $89.10 | Aug 9, 2022 |
| Rhine Bruce C | Director | SELL | $1M+ | 61K | $89.78 | Feb 17, 2022 |
| ROTH STEVEN R | Sr VP & CFO | SELL | $500K+ | 5K | $105.00 | Jan 18, 2022 |
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Institutional Ownership
13F filings as of Dec 31, 2025 · 418 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1.7M | $1M+ | SH |
| STATE STREET CORP | 1.5M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 958K | $1M+ | SH |
| Fisher Asset Management, LLC | 702K | $1M+ | SH |
| NORGES BANK | 665K | $1M+ | SH |
| AQR CAPITAL MANAGEMENT LLC | 607K | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 597K | $1M+ | SH |
| JENNISON ASSOCIATES LLC | 523K | $1M+ | SH |
| Channing Capital Management, LLC | 519K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 504K | $1M+ | SH |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 483K | $1M+ | SH |
| GLENVIEW CAPITAL MANAGEMENT, LLC | 415K | $1M+ | SH |
| SEGALL BRYANT & HAMILL, LLC | 399K | $1M+ | SH |
| Point72 Asset Management, L.P. | 385K | $1M+ | SH |
| ROYCE & ASSOCIATES LP | 366K | $1M+ | SH |
| Pacer Advisors, Inc. | 335K | $1M+ | SH |
| THRIVENT FINANCIAL FOR LUTHERANS | 329K | $1M+ | SH |
| MARSHALL WACE, LLP | 281K | $1M+ | SH |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | 269K | $1M+ | SH |
| Boston Partners | 254K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Oct 17, 2025
10.3%
5.0M shares
SC 13G/A · Apr 29, 2025
11.3%
5.6M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
10.6%
5.2M shares
SC 13G/A · Jan 23, 2024
12.5%
6.1M shares
SC 13G/A · Jan 23, 2023
16.2%
8.0M shares
SC 13G/A · Jan 27, 2022
15.8%
7.8M shares
SC 13G/A · Jan 25, 2022
15.8%
7.8M shares