Institutional shares held 46.9 Million
643K calls
297K puts
Total value of holdings $6B
$82.3M calls
$38M puts
Market Cap $6.36B
49,680,800 Shares Out.
Institutional ownership 94.48%
# of Institutions 535


Latest Institutional Activity in ONTO

Top Purchases

Q3 2025
Wellington Management Group LLP Shares Held: 1.4M ($179M)
Q3 2025
William Blair Investment Management, LLC Shares Held: 1.98M ($254M)
Q3 2025
Voya Investment Management LLC Shares Held: 869K ($111M)
Q3 2025
Franklin Resources Inc Shares Held: 1.11M ($143M)
Q3 2025
Morgan Stanley Shares Held: 790K ($101M)

Top Sells

Q3 2025
Jpmorgan Chase & CO Shares Held: 341K ($43.6M)
Q3 2025
Qube Research & Technologies LTD Shares Held: 126K ($16.1M)
Q3 2025
Barclays PLC Shares Held: 93.1K ($11.9M)
Q3 2025
Bank Of America Corp Shares Held: 136K ($17.4M)
Q3 2025
Ubs Group Ag Shares Held: 633K ($81M)

About ONTO

Onto Innovation Inc. engages in the design, development, manufacture, and support of process control tools that performs macro defect inspection and 2D/3D optical metrology, lithography systems, and process control analytical software worldwide. It offers process and yield management solutions, and device packaging and test facilities through standalone systems for macro-defect inspection, packaging lithography, probe card test and analysis, and transparent and opaque thin film measurements; and process control software portfolio that includes solutions for standalone tools, groups of tools, and enterprise-or factory-wide suites. The company also provides spare parts and software licensing services. Its products are used by semiconductor and advanced packaging device manufacturers; silicon wafer; light emitting diode; vertical-cavity surface-emitting laser; micro-electromechanical system; CMOS image sensor; power device; RF filter; data storage; and various industrial and scientific applications. The company was formerly known as Rudolph Technologies, Inc. Onto Innovation Inc. was founded in 1940 and is headquartered in Wilmington, Massachusetts.


Insider Transactions at ONTO

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
168K Shares
From 18 Insiders
Grant, award, or other acquisition 109K shares
Exercise of conversion of derivative security 58.3K shares
Sell / Disposition
133K Shares
From 8 Insiders
Payment of exercise price or tax liability 46.8K shares
Open market or private sale 86.1K shares

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