Onto Innovation Inc.
US ˙ NYSE ˙ US6833441057

SecurityONTO / Onto Innovation Inc.
InstitutionStrs Ohio
Latest Disclosed Ownership1,163 shares
Latest Disclosed Value $ 238,496
Strs Ohio reports 0.17% decrease in ownership of ONTO / Onto Innovation Inc.

On April 24, 2026 - Strs Ohio filed a 13F-HR form disclosing ownership of 1,163 shares of Onto Innovation Inc. (US:ONTO) valued at $238,496 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 1,165 shares of Onto Innovation Inc.. This represents a change in shares of -0.17% during the quarter. The current value of the position is $294,518 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)
2026-04-24 2026-03-31 13F ONTO INNOVATION COM_STK 683344105 1,163 -2 -0.17 238 30.05 0.0009
2026-02-02 2025-12-31 13F ONTO INNOVATION COM_STK 683344105 1,165 2 0.17 184 22.00 0.0007
2025-10-30 2025-09-30 13F ONTO INNOVATION COM_STK 683344105 1,163 1 0.09 150 28.21 0.0006
2025-08-04 2025-06-30 13F ONTO INNOVATION COM_STK 683344105 1,162 -3,701 -76.11 117 -80.17 0.0004
2025-05-28 2025-03-31 13F ONTO INNOVATION COM_STK 683344105 4,863 4,863 -26.83 590 -57.22 0.0025
2025-05-28 2024-12-31 13F ONTO INNOVATION COM_STK 683344105 0 -6,646 -100.00 0 -100.00
2024-11-01 2024-09-30 13F ONTO INNOVATION COM_STK 683344105 6,646 -14,300 -68.27 1,379 -70.01 0.0053
2024-08-05 2024-06-30 13F ONTO INNOVATION COM_STK 683344105 20,946 -5,554 -20.96 4,599 114,850.00 0.0182
2024-05-13 2024-03-31 13F ONTO INNOVATION COM_STK 683344105 26,500 -2,000 -7.02 5 0.00 0.0191
2024-01-30 2023-12-31 13F ONTO INNOVATION COM 683344105 28,500 14,300 100.70 4 300.00 0.0181
2023-10-26 2023-09-30 13F/A-1 ONTO INNOVATION COM 683344105 14,200 0 0.00 2 0.00 0.0081
2023-10-26 2023-09-30 13F ONTO INNOVATION COM 683344105 14,200 0 2 0.0081
2023-07-31 2023-06-30 13F ONTO INNOVATION COM 683344105 14,200 1,100 8.40 2 0.00 0.0070
2023-08-02 2023-03-31 13F/A-2 ONTO INNOVATION COM 683344105 13,100 0 0.00 1 0.0050
2023-08-02 2023-03-31 13F/A-1 ONTO INNOVATION COM 683344105 13,100 1
2023-04-27 2023-03-31 13F ONTO INNOVATION COM 683344105 13,100 0 1 0.0059
2023-01-26 2022-12-31 13F ONTO INNOVATION COM 683344105 13,100 -6,000 -31.41 1 -100.00 0.0040
2022-10-27 2022-09-30 13F ONTO INNOVATION COM 683344105 19,100 0 0.00 1,223 -8.18 0.0058
2022-07-25 2022-06-30 13F ONTO INNOVATION COM 683344105 19,100 600 3.24 1,332 -17.11 0.0060
2022-04-21 2022-03-31 13F ONTO INNOVATION COM 683344105 18,500 0 0.00 1,607 -14.16 0.0059
2022-01-24 2021-12-31 13F ONTO INNOVATION COM 683344105 18,500 -1,100 -5.61 1,872 32.20 0.0065
2021-10-22 2021-09-30 13F ONTO INNOVATION COM 683344105 19,600 -1,700 -7.98 1,416 -8.94 0.0053
2021-07-26 2021-06-30 13F ONTO INNOVATION COM 683344105 21,300 -800 -3.62 1,555 7.09 0.0056
2021-04-23 2021-03-31 13F ONTO INNOVATION COM 683344105 22,100 22,100 1,452 0.0055
2020-04-23 2020-03-31 13F ONTO INNOVATION COM 683344105 0 -3,000 -100.00 0 -100.00
2020-01-24 2019-12-31 13F ONTO INNOVATION COM 683344105 3,000 3,000 109 0.0005
2019-10-21 2019-09-30 13F NANOMETRICS COM 630077105 0 -19,900 -100.00 0 -100.00
2019-07-25 2019-06-30 13F NANOMETRICS COM 630077105 19,900 -4,900 -19.76 690 -9.80 0.0031
2019-04-19 2019-03-31 13F NANOMETRICS COM 630077105 24,800 1,100 4.64 765 18.24 0.0035
2019-01-23 2018-12-31 13F NANOMETRICS COM 630077105 23,700 800 3.49 647 -24.68 0.0033
2018-10-19 2018-09-30 13F NANOMETRICS COM 630077105 22,900 -700 -2.97 859 2.87 0.0038
2018-08-06 2018-06-30 13F NANOMETRICS COM 630077105 23,600 23,600 835 0.0036
2018-04-20 2018-03-31 13F NANOMETRICS COM 630077105 0 -1,900 -100.00 0 -100.00
2018-01-23 2017-12-31 13F NANOMETRICS COM 630077105 1,900 -26,300 -93.26 47 -94.21 0.0002
2017-10-23 2017-09-30 13F NANOMETRICS COM 630077105 28,200 0 0.00 812 13.88 0.0035
2017-07-26 2017-06-30 13F NANOMETRICS COM 630077105 28,200 2,700 10.59 713 -8.12 0.0032
2017-04-26 2017-03-31 13F NANOMETRICS COM 630077105 25,500 -5,600 -18.01 776 -0.39 0.0034
2017-01-24 2016-12-31 13F NANOMETRICS COM 630077105 31,100 24,500 371.21 779 429.93 0.0034
2016-10-27 2016-09-30 13F NANOMETRICS COM 630077105 6,600 6,600 147 0.0007
2014-04-28 2014-03-31 13F NANOMETRICS COM 630077105 0 -1,800 -100.00 0 -100.00
2014-01-30 2013-12-31 13F NANOMETRICS COM 630077105 1,800 -8,700 -82.86 34 -79.88 0.0002
2013-10-24 2013-09-30 13F NANOMETRICS COM 630077105 10,500 -29,900 -74.01 169 -71.50 0.0007
2013-08-12 2013-06-30 13F NANOMETRICS COM 630077105 40,400 40,400 593 0.0025
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.