Onto Innovation Inc.
US ˙ NYSE ˙ US6833441057

SecurityONTO / Onto Innovation Inc.
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership339 shares
Latest Disclosed Value $ 53,515
Parallel Advisors, LLC ownership in ONTO / Onto Innovation Inc.

On February 11, 2026 - Parallel Advisors, LLC filed a 13F-HR form disclosing ownership of 339 shares of Onto Innovation Inc. (US:ONTO) valued at $53,515 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 281 shares of Onto Innovation Inc.. This represents a change in shares of 20.64% during the quarter. The current value of the position is $94,913 USD.

Parallel Advisors, LLC has a history of taking positions in derivatives of the underlying security (ONTO) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

ONTO / Onto Innovation Inc. Historical Put/Call Ratio
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)
2026-02-11 2025-12-31 13F ONTO INNOVATION INC COM Stock 683344105 339 58 20.64 54 47.22 0.0010
2025-11-13 2025-09-30 13F ONTO INNOVATION INC COM Stock 683344105 281 23 8.91 36 38.46 0.0007
2025-07-08 2025-06-30 13F ONTO INNOVATION INC COM Stock 683344105 258 -126 -32.81 26 -43.48 0.0005
2025-04-08 2025-03-31 13F ONTO INNOVATION INC COM Stock 683344105 384 -33 -7.91 47 -33.33 0.0011
2025-02-10 2024-12-31 13F ONTO INNOVATION INC COM Stock 683344105 417 -162 -27.98 70 -42.50 0.0016
2024-11-13 2024-09-30 13F ONTO INNOVATION INC COM Stock 683344105 579 180 45.11 120 37.93 0.0028
2024-08-08 2024-06-30 13F ONTO INNOVATION INC COM Stock 683344105 399 15 3.91 88 26.09 0.0022
2024-05-06 2024-03-31 13F ONTO INNOVATION INC COM Stock 683344105 384 18 4.92 70 25.45 0.0019
2024-02-12 2023-12-31 13F ONTO INNOVATION INC COM Stock 683344105 366 110 42.97 56 71.88 0.0017
2024-05-20 2023-09-30 13F/A-1 ONTO INNOVATION INC COM Stock 683344105 256 77 43.02 33 60.00 0.0011
2023-11-14 2023-09-30 13F ONTO INNOVATION INC COM Stock 683344105 256 77 33 0.0011
2024-05-20 2023-06-30 13F/A-1 ONTO INNOVATION INC COM Stock 683344105 179 0 0.00 21 33.33 0.0007
2023-08-04 2023-06-30 13F ONTO INNOVATION INC COM Stock 683344105 179 0 21 0.0007
2024-05-20 2023-03-31 13F/A-1 ONTO INNOVATION INC COM Stock 683344105 179 0 0.00 16 25.00 0.0005
2023-04-25 2023-03-31 13F ONTO INNOVATION INC COM Stock 683344105 179 0 16 0.0005
2023-02-06 2022-12-31 13F ONTO INNOVATION INC COM Stock 683344105 179 0 0.00 12 9.09 0.0005
2022-11-10 2022-09-30 13F ONTO INNOVATION INC COM Stock 683344105 179 101 129.49 11 120.00 0.0005
2022-08-01 2022-06-30 13F ONTO INNOVATION INC COM Stock 683344105 78 -108 -58.06 5 -68.75 0.0002
2022-04-28 2022-03-31 13F ONTO INNOVATION INC COM Stock 683344105 186 28 17.72 16 0.00 0.0006
2022-01-20 2021-12-31 13F ONTO INNOVATION INC COM Stock 683344105 158 -96 -37.80 16 -11.11 0.0006
2021-11-02 2021-09-30 13F/A-1 ONTO INNOVATION INC COM Stock 683344105 254 81 46.82 18 38.46 0.0007
2021-08-06 2021-06-30 13F ONTO INNOVATION INC COM Stock 683344105 173 98 130.67 13 160.00 0.0006
2021-04-23 2021-03-31 13F ONTO INNOVATION INC COM Stock 683344105 75 0 0.00 5 25.00 0.0002
2021-02-02 2020-12-31 13F ONTO INNOVATION INC COM Stock 683344105 75 3 4.17 4 100.00 0.0002
2020-10-27 2020-09-30 13F ONTO INNOVATION INC COM Stock 683344105 72 3 4.35 2 0.00 0.0001
2020-07-16 2020-06-30 13F ONTO INNOVATION INC COM Stock 683344105 69 27 64.29 2 100.00 0.0001
2020-04-27 2020-03-31 13F ONTO INNOVATION INC COM Stock 683344105 42 42 1 0.0001
2020-01-30 2019-12-31 13F NANOMETRICS INC COM Stock 630077105 0 -205,393 -100.00 0 -100.00
2019-11-01 2019-09-30 13F NANOMETRICS INC COM Stock 630077105 205,393 47,836 30.36 6,700 22.51 0.5737
2019-08-05 2019-06-30 13F NANOMETRICS INC COM Stock 630077105 157,557 157,557 5,469 0.5335
2019-02-05 2018-12-31 13F NANOMETRICS INC COM Stock 630077105 0 -38 -100.00 0 -100.00
2018-11-01 2018-09-30 13F NANOMETRICS INC COM Stock 630077105 38 0 0.00 1 0.00 0.0001
2018-07-30 2018-06-30 13F NANOMETRICS INC COM Stock 630077105 38 38 1 0.0001
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2022-01-19 2021-12-31 13F ONTO INNOVATION INC COM Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-10-22 2021-09-30 13F ONTO INNOVATION INC COM Stock Call 173 13 n/a n/a n/a
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.