Onto Innovation Inc.
US ˙ NYSE ˙ US6833441057

SecurityONTO / Onto Innovation Inc.
InstitutionKBC Group NV
Latest Disclosed Ownership1,653 shares
Latest Disclosed Value $ 339
KBC Group NV reports 14.55% increase in ownership of ONTO / Onto Innovation Inc.

On May 7, 2026 - KBC Group NV filed a 13F-HR form disclosing ownership of 1,653 shares of Onto Innovation Inc. (US:ONTO) valued at $338,981 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 1,443 shares of Onto Innovation Inc.. The current value of the position is $462,807 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)
2026-05-07 2026-03-31 13F ONTO INNOVATION COM 683344105 1,653 210 14.55 0 0.0004
2026-01-26 2025-12-31 13F ONTO INNOVATION COM 683344105 1,443 0 0.00 0 0.0005
2026-01-20 2025-09-30 13F ONTO INNOVATION COM 683344105 1,443 0 0.00 0 0.0004
2025-08-08 2025-06-30 13F ONTO INNOVATION COM 683344105 1,443 -618 -29.99 0 0.0004
2025-04-25 2025-03-31 13F ONTO INNOVATION COM 683344105 2,061 10 0.49 0 0.0008
2025-01-22 2024-12-31 13F ONTO INNOVATION COM 683344105 2,051 759 58.75 0 0.0009
2024-11-06 2024-09-30 13F ONTO INNOVATION COM 683344105 1,292 121 10.33 0 0.0008
2024-07-17 2024-06-30 13F ONTO INNOVATION COM 683344105 1,171 110 10.37 0 0.0008
2024-05-08 2024-03-31 13F ONTO INNOVATION COM 683344105 1,061 22 2.12 0 0.0006
2024-02-13 2023-12-31 13F ONTO INNOVATION COM 683344105 1,039 -52 -4.77 0 0.0006
2024-02-15 2023-09-30 13F/A-1 ONTO INNOVATION COM 683344105 1,091 -2,642 -70.77 0 0.0006
2023-11-22 2023-09-30 13F ONTO INNOVATION COM 683344105 3,733 0 0 0.0018
2024-02-15 2023-06-30 13F/A-1 ONTO INNOVATION COM 683344105 3,733 -361 -8.82 0 0.0018
2023-07-28 2023-06-30 13F ONTO INNOVATION COM 683344105 3,733 -361 0 0.0018
2024-02-14 2023-03-31 13F/A-1 ONTO INNOVATION COM 683344105 4,094 -192 -4.48 0 0.0015
2023-05-04 2023-03-31 13F ONTO INNOVATION COM 683344105 4,094 -192 0 0.0017
2024-02-14 2022-12-31 13F/A-1 ONTO INNOVATION COM 683344105 4,286 0 0.00 0 0.0014
2023-02-13 2022-12-31 13F ONTO INNOVATION COM 683344105 4,286 0 0 0.0000
2024-02-15 2022-09-30 13F/A-1 ONTO INNOVATION COM 683344105 4,286 -265 -5.82 0 0.0014
2022-11-08 2022-09-30 13F ONTO INNOVATION COM 683344105 4,286 -265 275 0.0014
2024-02-14 2022-06-30 13F/A-1 ONTO INNOVATION COM 683344105 4,551 -1,042 -18.63 0 -100.00 0.0016
2022-07-26 2022-06-30 13F ONTO INNOVATION COM 683344105 4,551 -1,042 317 0.0016
2024-02-14 2022-03-31 13F/A-1 ONTO INNOVATION COM 683344105 5,593 0 0.00 0 0.0019
2022-05-06 2022-03-31 13F ONTO INNOVATION COM 683344105 5,593 0 486 0.0018
2024-02-14 2021-12-31 13F/A-1 ONTO INNOVATION COM 683344105 5,593 0 0.00 1 -100.00 0.0019
2022-02-03 2021-12-31 13F ONTO INNOVATION COM 683344105 5,593 0 566 0.0018
2021-11-10 2021-09-30 13F ONTO INNOVATION COM 683344105 5,593 0 0.00 404 -1.22 0.0015
2022-02-15 2021-06-30 13F/A-1 ONTO INNOVATION COM 683344105 5,593 0 0.00 409 11.14 0.0015
2021-08-11 2021-06-30 13F ONTO INNOVATION COM 683344105 5,593 0 409 0.0015
2022-02-14 2021-03-31 13F/A-1 ONTO INNOVATION COM 683344105 5,593 0 0.00 368 -86.16 0.0015
2021-04-26 2021-03-31 13F ONTO INNOVATION COM 683344105 5,593 0 368 0.0015
2022-02-14 2020-12-31 13F/A-1 ONTO INNOVATION COM 683344105 5,593 0 0.00 2,659 1,492.22 0.0013
2021-02-10 2020-12-31 13F ONTO INNOVATION COM 683344105 5,593 0 266 0.0012
2022-02-14 2020-09-30 13F/A-1 ONTO INNOVATION COM 683344105 5,593 0 0.00 167 -12.11 0.0010
2020-10-28 2020-09-30 13F ONTO INNOVATION COM 683344105 5,593 0 167 0.0010
2022-02-14 2020-06-30 13F/A-1 ONTO INNOVATION COM 683344105 5,593 0 0.00 190 14.46 0.0013
2020-08-10 2020-06-30 13F ONTO INNOVATION COM 683344105 5,593 0 190 0.0013
2020-05-04 2020-03-31 13F ONTO INNOVATION COM 683344105 5,593 -40,287 -87.81 166 -90.10 0.0014
2020-02-11 2019-12-31 13F ONTO INNOVATION COM 683344105 45,880 18,590 68.12 1,676 88.31 0.0106
2019-11-07 2019-09-30 13F NANOMETRICS COM 630077105 27,290 0 0.00 890 -6.02 0.0065
2019-08-08 2019-06-30 13F/A-1 NANOMETRICS COM 630077105 27,290 -19,630 -41.84 947 -34.64 0.0073
2019-07-30 2019-06-30 13F NANOMETRICS COM 630077105 27,290 -19,630 947
2019-08-07 2019-03-31 13F/A-1 NANOMETRICS COM 630077105 46,920 -30,886 -39.70 1,449 -31.84 0.0119
2019-05-10 2019-03-31 13F NANOMETRICS COM 630077105 46,920 -30,886 1,449
2019-01-31 2018-12-31 13F NANOMETRICS COM 630077105 77,806 -4,106 -5.01 2,126 -30.82 0.0237
2018-11-14 2018-09-30 13F NANOMETRICS COM 630077105 81,912 32,034 64.22 3,073 74.01 0.0232
2018-08-03 2018-06-30 13F NANOMETRICS COM 630077105 49,878 -8,351 -14.34 1,766 12.77 0.0154
2018-08-03 2018-03-31 13F/A-1 NANOMETRICS COM 630077105 58,229 16,661 40.08 1,566 51.16 0.0145
2018-05-09 2018-03-31 13F NANOMETRICS COM 630077105 58,229 16,661 1,566
2018-08-03 2017-12-31 13F/A-1 NANOMETRICS COM 630077105 41,568 764 1.87 1,036 -11.83 0.0089
2018-02-07 2017-12-31 13F NANOMETRICS COM 630077105 41,568 764 1,036
2017-11-13 2017-09-30 13F NANOMETRICS COM 630077105 40,804 0 0.00 1,175 13.86 0.0107
2017-08-04 2017-06-30 13F NANOMETRICS COM 630077105 40,804 12,296 43.13 1,032 18.89 0.0100
2017-05-10 2017-03-31 13F NANOMETRICS COM 630077105 28,508 0 0.00 868 21.57 0.0078
2017-02-16 2016-12-31 13F NANOMETRICS COM 630077105 28,508 6,106 27.26 714 42.80 0.0071
2016-11-03 2016-09-30 13F NANOMETRICS COM 630077105 22,402 9,565 74.51 500 87.27 0.0059
2016-08-03 2016-06-30 13F NANOMETRICS COM 630077105 12,837 12,837 0.00 267 0.0038
2015-12-16 2015-06-30 13F/A-1 NANOMETRICS COM 630077105 0 0 0 0.0000
2015-12-16 2015-03-31 13F/A-1 NANOMETRICS COM 630077105 0 -2,452 -100.00 0 -100.00
2015-12-15 2014-12-31 13F/A-1 NANOMETRICS COM 630077105 2,452 0 0.00 41 10.81 0.0005
2015-02-12 2014-12-31 13F NANOMETRICS COM 630077105 2,452 41
2014-10-16 2014-09-30 13F NANOMETRICS COM 630077105 2,452 2,452 37 0.0013
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.