Institutional shares held 48.6 Million
384K calls
319K puts
Total value of holdings $5.36B
$42.3M calls
$35.1M puts
Market Cap $5.48B
49,680,800 Shares Out.
Institutional ownership 97.83%
# of Institutions 504


Latest Institutional Activity in ONTO

Top Purchases

Q2 2025
T. Rowe Price Investment Management, Inc. Shares Held: 984K ($108M)
Q2 2025
William Blair Investment Management, LLC Shares Held: 1.1M ($121M)
Q2 2025
Qube Research & Technologies LTD Shares Held: 901K ($99.3M)
Q2 2025
D. E. Shaw & Co., Inc. Shares Held: 994K ($110M)
Q2 2025
Ubs Group Ag Shares Held: 984K ($108M)

Top Sells

Q2 2025
Invesco Ltd. Shares Held: 119K ($13.2M)
Q2 2025
Macquarie Group LTD Shares Held: 0 ($0)
Q2 2025
Massachusetts Financial Services CO Shares Held: 442K ($48.8M)
Q2 2025
Franklin Resources Inc Shares Held: 674K ($74.3M)
Q2 2025
Congress Asset Management CO Shares Held: 4.23K ($467K)

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
134K Shares
From 16 Insiders
Grant, award, or other acquisition 75.7K shares
Exercise of conversion of derivative security 58.3K shares
Sell / Disposition
134K Shares
From 9 Insiders
Payment of exercise price or tax liability 45.4K shares
Open market or private sale 88.4K shares

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