Onto Innovation Inc.
US ˙ NYSE ˙ US6833441057

SecurityONTO / Onto Innovation Inc.
InstitutionWolverine Trading, Llc
Latest Disclosed Ownership16,285 shares
Latest Disclosed Value $ 2,123,564
Wolverine Trading, Llc ownership in ONTO / Onto Innovation Inc.

On November 14, 2025 - Wolverine Trading, Llc filed a 13F-HR form disclosing ownership of 16,285 shares of Onto Innovation Inc. (US:ONTO) valued at $2,104,348 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 18, 2025 disclosing 7,838 shares of Onto Innovation Inc.. This represents a change in shares of 107.77% during the quarter. The current value of the position is $4,559,474 USD.

Wolverine Trading, 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 11,500 of underlying shares valued at $1,499,600 USD and put options representing 31,600 of underlying shares valued at $4,120,640 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)
2025-11-14 2025-09-30 13F ONTO INNOVATION COM 683344105 16,285 8,447 107.77 2,124 173.94 0.0015
2025-08-18 2025-06-30 13F ONTO INNOVATION COM 683344105 7,838 4,636 144.78 775 98.72 0.0008
2025-05-15 2025-03-31 13F ONTO INNOVATION COM 683344105 3,202 -20 -0.62 391 -27.78 0.0005
2025-02-14 2024-12-31 13F ONTO INNOVATION COM 683344105 3,222 -302 -8.57 541 -28.76 0.0005
2024-11-14 2024-09-30 13F ONTO INNOVATION COM 683344105 3,524 3,524 759 0.0008
2024-05-15 2024-03-31 13F ONTO INNOVATION COM 683344105 0 -1,790 -100.00 0 -100.00
2024-02-14 2023-12-31 13F ONTO INNOVATION COM 683344105 1,790 1,790 274 0.0003
2022-05-16 2022-03-31 13F ONTO INNOVATION COM 683344105 0 -7,984 -100.00 0 -100.00
2022-02-14 2021-12-31 13F ONTO INNOVATION COM 683344105 7,984 7,984 806 0.0010
2016-11-14 2016-09-30 13F NANOMETRICS COM 630077105 0 -863 -100.00 0 -100.00
2016-08-15 2016-06-30 13F NANOMETRICS COM 630077105 863 863 17 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
(%)
2025-11-14 2025-09-30 13F ONTO INNOVATION COM Call 11,500 22.34 1,500 61.36 n/a n/a n/a
2025-08-18 2025-06-30 13F ONTO INNOVATION COM Call 9,400 22.08 929 -1.06 n/a n/a n/a
2025-05-15 2025-03-31 13F ONTO INNOVATION COM Call 7,700 120.00 940 59.97 n/a n/a n/a
2025-02-14 2024-12-31 13F ONTO INNOVATION COM Call 3,500 -12.50 587 -31.82 n/a n/a n/a
2024-11-14 2024-09-30 13F ONTO INNOVATION COM Call 4,000 861 n/a n/a n/a
2024-05-15 2024-03-31 13F ONTO INNOVATION COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-14 2023-12-31 13F ONTO INNOVATION COM Call 2,500 -64.29 382 -57.17 n/a n/a n/a
2023-11-15 2023-09-30 13F ONTO INNOVATION COM Call 7,000 893 n/a n/a n/a
2022-05-16 2022-03-31 13F ONTO INNOVATION COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-14 2021-12-31 13F ONTO INNOVATION COM Call 17,100 1,725 n/a n/a n/a
2019-02-13 2018-12-31 13F NANOMETRICS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-11-14 2018-09-30 13F NANOMETRICS COM Call 34,400 52,021.21 1,291 870.68 n/a n/a n/a
2016-08-15 2016-06-30 13F NANOMETRICS COM Call 66 133 n/a n/a n/a
Disclosed Put 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
(%)
2025-11-14 2025-09-30 13F ONTO INNOVATION COM Put 31,600 21.07 4,121 59.69 n/a n/a n/a
2025-08-18 2025-06-30 13F ONTO INNOVATION COM Put 26,100 7.41 2,581 -13.01 n/a n/a n/a
2025-05-15 2025-03-31 13F ONTO INNOVATION COM Put 24,300 440.00 2,966 292.85 n/a n/a n/a
2025-02-14 2024-12-31 13F ONTO INNOVATION COM Put 4,500 -13.46 755 -32.53 n/a n/a n/a
2024-11-14 2024-09-30 13F ONTO INNOVATION COM Put 5,200 1,120 n/a n/a n/a
2024-05-15 2024-03-31 13F ONTO INNOVATION COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-14 2023-12-31 13F ONTO INNOVATION COM Put 2,800 64.71 428 98.15 n/a n/a n/a
2023-11-15 2023-09-30 13F ONTO INNOVATION COM Put 1,700 217 n/a n/a n/a
2023-02-14 2022-12-31 13F ONTO INNOVATION COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-11-14 2022-09-30 13F ONTO INNOVATION COM Put 12,900 841 n/a n/a n/a
2022-05-16 2022-03-31 13F ONTO INNOVATION COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-14 2021-12-31 13F ONTO INNOVATION COM Put 15,800 267.44 1,594 415.86 n/a n/a n/a
2021-11-12 2021-09-30 13F ONTO INNOVATION COM Put 4,300 309 n/a n/a n/a
2019-02-13 2018-12-31 13F NANOMETRICS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-11-14 2018-09-30 13F NANOMETRICS COM Put 17,700 664 n/a n/a n/a
2018-05-15 2018-03-31 13F NANOMETRICS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-02-14 2017-12-31 13F NANOMETRICS COM Put 10,600 15.22 264 -0.38 n/a n/a n/a
2017-11-15 2017-09-30 13F NANOMETRICS COM Put 9,200 19,474.47 265 181.91 n/a n/a n/a
2016-08-15 2016-06-30 13F NANOMETRICS COM Put 47 95 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.