ON Semiconductor Corporation
CH ˙ SWX ˙ US6821891057
SecurityCH:ON / ON Semiconductor Corporation
InstitutionLazard Asset Management Llc
Latest Disclosed Ownership1,466 shares
Latest Disclosed Value $ 90,775
Lazard Asset Management Llc ownership in ON / ON Semiconductor Corporation

On May 15, 2026 - Lazard Asset Management Llc filed a 13F-HR form disclosing ownership of 1,466 shares of ON Semiconductor Corporation (CH:ON) valued at $90,775 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 15,287 shares of ON Semiconductor Corporation. This represents a change in shares of -90.41% during the quarter.

Lazard Asset Management Llc has a history of taking positions in derivatives of the underlying security (ON) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put 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.

CH:ON / ON Semiconductor Corporation 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)
2026-05-15 2026-03-31 13F ON SEMICONDUCTOR COM 682189105 1,466 -13,821 -90.41 91 -89.12 0.0001
2026-02-17 2025-12-31 13F ON SEMICONDUCTOR COM 682189105 15,287 11,286 282.08 828 319.80 0.0014
2025-11-14 2025-09-30 13F ON SEMICONDUCTOR COM 682189105 4,001 -6,123 -60.48 197 0.0003
2025-08-14 2025-06-30 13F ON SEMICONDUCT Common Stock 682189105 10,124 1,461 16.86 1 0.0007
2025-05-15 2025-03-31 13F ON SEMICONDUCT Common Stock 682189105 8,663 -3,204 -27.00 0 0.0005
2025-02-14 2024-12-31 13F ON SEMICONDUCT Common Stock 682189105 11,867 967 8.87 1 0.0011
2024-11-14 2024-09-30 13F ON SEMICONDUCT Common Stock 682189105 10,900 -5,973 -35.40 1 -100.00 0.0011
2024-08-14 2024-06-30 13F ON SEMICONDUCT Common Stock 682189105 16,873 -38,120 -69.32 1 -75.00 0.0015
2024-07-09 2024-03-31 13F/A-1 ON SEMICONDUCT Common Stock 682189105 54,993 2,401 4.57 4 0.00 0.0049
2024-05-14 2024-03-31 13F ON SEMICONDUCT Common Stock 682189105 54,993 2,401 4 0.0049
2024-02-14 2023-12-31 13F ON SEMICONDUCT Common Stock 682189105 52,592 -145,915 -73.51 4 -77.78 0.0056
2023-11-14 2023-09-30 13F ON SEMICONDUCT Common Stock 682189105 198,507 -174,480 -46.78 18 -48.57 0.0251
2023-08-15 2023-06-30 13F ON SEMICONDUCT Common Stock 682189105 372,987 14,906 4.16 35 20.69 0.0434
2023-05-15 2023-03-31 13F ON SEMICONDUCT Common Stock 682189105 358,081 -163,407 -31.33 29 -99.91 0.0386
2023-02-15 2022-12-31 13F ON SEMICONDUCT Common Stock 682189105 521,488 96,259 22.64 32,524 22.71 0.0448
2022-11-14 2022-09-30 13F ON SEMICONDUCT Common Stock 682189105 425,229 207,746 95.52 26,504 142.27 0.0387
2022-08-09 2022-06-30 13F ON SEMICONDUCT Common Stock 682189105 217,483 205,187 1,668.73 10,940 1,324.48 0.0148
2022-05-13 2022-03-31 13F ON SEMICONDUCT Common Stock 682189105 12,296 4,896 66.16 768 52.99 0.0009
2022-02-09 2021-12-31 13F ON SEMICONDUCT Common Stock 682189105 7,400 -17,600 -70.40 502 -56.12 0.0005
2021-11-15 2021-09-30 13F ON SEMICONDUCT Common Stock 682189105 25,000 25,000 1,144 0.0013
2020-08-13 2020-06-30 13F ON SEMICONDUCT Common Stock 682189105 0 -254,200 -100.00 0 -100.00
2020-05-14 2020-03-31 13F ON SEMICONDUCT Common Stock 682189105 254,200 254,200 3,162 0.0058
2020-02-13 2019-12-31 13F ON SEMICONDUCT Common Stock 682189105 0 -7,884 -100.00 0 -100.00
2019-11-14 2019-09-30 13F ON SEMICONDUCT Common Stock 682189105 7,884 -12,834 -61.95 151 -63.88 0.0002
2019-08-14 2019-06-30 13F ON SEMICONDUCT Common Stock 682189105 20,718 20,718 -90.19 418 -80.46 0.0007
2015-11-13 2015-09-30 13F ON SEMICONDUCT Common Stock 682189105 0 0 0 0.0000
2015-06-09 2015-03-31 13F/A-1 ON SEMICONDUCT Common Stock 682189105 0 -211,251 -100.00 0 -100.00
2019-08-29 2014-12-31 13F/A-3 ON SEMICONDUCT Common Stock 682189105 211,251 -322,658 -60.43 2,139 -57.37 0.0046
2015-06-09 2014-12-31 13F/A-2 ON SEMICONDUCT Common Stock 682189105 211,251 0 2,139 4,880.9834
2014-05-12 2014-03-31 13F ON SEMICONDUCT Common Stock 682189105 533,909 -1,945,333 -78.46 5,018 -75.44 0.0112
2014-02-14 2013-12-31 13F ON SEMICONDUCT Common Stock 682189105 2,479,242 152,528 6.56 20,428 20.27 0.0453
2014-01-13 2013-09-30 13F/A-1 ON SEMICONDUCT Common Stock 682189105 2,326,714 30,794 1.34 16,985 -8.44 0.0403
2013-11-13 2013-09-30 13F ON SEMICONDUCT Common Stock 682189105 2,326,714 16,985
2013-08-13 2013-06-30 13F ON SEMICONDUCT Common Stock 682189105 2,295,920 2,295,920 18,551 0.0440
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
(%)
2026-05-15 2026-03-31 13F ON SEMICONDUCTOR COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F ON SEMICONDUCTOR COM Call 10,000 542 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
(%)
2026-05-15 2026-03-31 13F ON SEMICONDUCTOR COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F ON SEMICONDUCTOR COM Put 40,000 2,166 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.