Onto Innovation Inc.
US ˙ NYSE ˙ US6833441057

SecurityONTO / Onto Innovation Inc.
InstitutionRoyce Value Trust Inc
Latest Disclosed Ownership26,847 shares
Latest Disclosed Value $ 2,709,667
Royce Value Trust Inc reports 53.39% decrease in ownership of ONTO / Onto Innovation Inc.

On August 15, 2025 - Royce Value Trust Inc filed a NPORT-P form disclosing ownership of 26,847 shares of Onto Innovation Inc. (US:ONTO) valued at $2,709,668 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 19, 2025 disclosing 57,596 shares of Onto Innovation Inc.. This represents a change in shares of -53.39% during the quarter. The current value of the position is $6,805,178 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2025-08-15 2025-06-30 NP Onto Innovation EC US6833441057 26,847 -30,749 -53.39 2,710 -61.23 0.1353
2025-05-19 2025-03-31 NP Onto Innovation EC US6833441057 57,596 0 0.00 6,989 -27.20 0.3798
2025-02-21 2024-12-31 NP Onto Innovation EC US6833441057 57,596 0 0.00 9,600 -19.70 0.4804
2024-11-19 2024-09-30 NP Onto Innovation EC US6833441057 57,596 -6,077 -9.54 11,955 -14.49 0.5917
2024-08-12 2024-06-30 NP Onto Innovation EC US6833441057 63,673 678 1.08 13,980 22.56 0.7328
2024-05-28 2024-03-31 NP Onto Innovation EC US6833441057 62,995 -20,795 -24.82 11,407 -10.96 0.5831
2024-02-20 2023-12-31 NP Onto Innovation EC US6833441057 83,790 -15,010 -15.19 12,811 1.69 0.6873
2023-11-22 2023-09-30 NP Onto Innovation EC US6833441057 98,800 36,200 57.83 12,599 72.79 0.7575
2023-08-09 2023-06-30 NP Onto Innovation EC US6833441057 62,600 -28,650 -31.40 7,291 -9.08 0.4158
2023-05-19 2023-03-31 NP Onto Innovation EC US6833441057 91,250 1,220 1.36 8,019 30.82 0.4751
2023-02-21 2022-12-31 NP Onto Innovation EC US6833441057 90,030 -56,919 -38.73 6,130 -34.87 0.3819
2022-11-17 2022-09-30 NP Onto Innovation EC US6833441057 146,949 10,840 7.96 9,412 -0.84 0.6377
2022-08-16 2022-06-30 NP Onto Innovation EC US6833441057 136,109 76,670 128.99 9,492 83.81 0.6001
2022-05-16 2022-03-31 NP Onto Innovation EC US6833441057 59,439 45,591 329.22 5,165 268.59 0.2693
2022-02-24 2021-12-31 NP Onto Innovation EC US6833441057 13,848 -870 -5.91 1,402 31.80 0.0652
2021-11-22 2021-09-30 NP Onto Innovation EC US6833441057 14,718 2,390 19.39 1,063 18.11 0.0511
2021-08-24 2021-06-30 NP Onto Innovation EC US6833441057 12,328 -140 -1.12 900 9.89 0.0416
2021-05-17 2021-03-31 NP Onto Innovation EC US6833441057 12,468 -2,808 -18.38 819 12.81 0.0392
2021-02-19 2020-12-31 NP Onto Innovation EC US6833441057 15,276 507 3.43 726 65.38 0.0385
2020-11-24 2020-09-30 NP Onto Innovation EC US6833441057 14,769 -150 -1.01 440 -13.41 0.0291
2020-08-19 2020-06-30 NP Onto Innovation EC US6833441057 14,919 -30,975 -67.49 508 -62.75 0.0353
2020-05-27 2020-03-31 NP Onto Innovation EC US6833441057 45,894 -7,378 -13.85 1,362 -30.06 0.1217
2020-02-19 2019-12-31 NP Onto Innovation EC 683344105 53,272 27,148 103.92 1,947 128.40 0.1195
2019-11-25 2019-09-30 NP Nanometrics EC US6300771051 26,124 26,124 852 0.0569
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.