ON Semiconductor Corporation
US ˙ NasdaqGS ˙ US6821891057

SecurityON / ON Semiconductor Corporation
InstitutionCandriam Luxembourg S.C.A.
Latest Disclosed Ownership1,394,653 shares
Latest Disclosed Value $ 86,356,914
Candriam Luxembourg S.C.A. reports 8.33% decrease in ownership of ON / ON Semiconductor Corporation

On April 30, 2026 - Candriam Luxembourg S.C.A. filed a 13F-HR form disclosing ownership of 1,394,653 shares of ON Semiconductor Corporation (US:ON) valued at $86,356,914 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on April 30, 2026 disclosing 1,521,320 shares of ON Semiconductor Corporation. This represents a change in shares of -8.33% during the quarter. The current value of the position is $163,537,011 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)
2026-04-30 2026-03-31 13F ON SEMICONDUCTOR COM 682189105 1,394,653 -126,667 -8.33 86,357 4.82 0.4486
2026-04-30 2025-12-31 13F/A-1 ON SEMICONDUCTOR COM 682189105 1,521,320 -90,659 -5.62 82,383 3.64 0.4108
2026-02-13 2025-12-31 13F ON SEMICONDUCTOR COM 682189105 1,521,320 -90,659 82,383 0.4102
2025-11-06 2025-09-30 13F ON SEMICONDUCTOR COM 682189105 1,611,979 -110,912 -6.44 79,487 -11.98 0.4161
2025-08-08 2025-06-30 13F ON SEMICONDUCTOR COM 682189105 1,722,891 -31,703 -1.81 90,301 26.48 0.5207
2025-05-14 2025-03-31 13F ON SEMICONDUCTOR COM 682189105 1,754,594 700,033 66.38 71,395 7.38 0.4472
2025-02-07 2024-12-31 13F ON SEMICONDUCTOR COM 682189105 1,054,561 -22,156 -2.06 66,490 -14.95 0.3829
2024-11-13 2024-09-30 13F ON SEMICONDUCTOR COM 682189105 1,076,717 -119,913 -10.02 78,177 -4.69 0.4492
2024-08-05 2024-06-30 13F ON SEMICONDUCTOR COM 682189105 1,196,630 291,214 32.16 82,025 23.17 0.4972
2024-05-06 2024-03-31 13F ON SEMICONDUCTOR COM 682189105 905,416 277,789 44.26 66,593 27.02 0.4259
2024-02-14 2023-12-31 13F ON SEMICONDUCTOR COM 682189105 627,627 58,060 10.19 52,428 -0.97 0.3619
2023-11-13 2023-09-30 13F ON SEMICONDUCTOR COM 682189105 569,567 -13,172 -2.26 52,941 -3.94 0.3752
2023-08-08 2023-06-30 13F ON SEMICONDUCTOR COM 682189105 582,739 -167,403 -22.32 55,115 -3.03 0.3983
2023-05-12 2023-03-31 13F ON SEMICONDUCTOR COM 682189105 750,142 -282,022 -27.32 56,838 -11.71 0.3942
2023-02-13 2022-12-31 13F ON SEMICONDUCTOR COM 682189105 1,032,164 -111,840 -9.78 64,373 -9.73 0.4343
2022-11-10 2022-09-30 13F ON SEMICONDUCTOR COM 682189105 1,144,004 -363,574 -24.12 71,309 -5.98 0.5024
2022-08-03 2022-06-30 13F ON SEMICONDUCTOR COM 682189105 1,507,578 -151,813 -9.15 75,843 -27.00 0.6245
2022-05-13 2022-03-31 13F ON SEMICONDUCTOR COM 682189105 1,659,391 -65,291 -3.79 103,890 -11.31 0.7069
2022-02-10 2021-12-31 13F ON SEMICONDUCTOR COM 682189105 1,724,682 -22,957 -1.31 117,141 46.45 0.7476
2021-11-09 2021-09-30 13F ON SEMICONDUCTOR COM 682189105 1,747,639 225,374 14.81 79,986 37.26 0.5437
2021-07-20 2021-06-30 13F ON SEMICONDUCTOR COM 682189105 1,522,265 234,356 18.20 58,272 43.91 0.3989
2021-04-29 2021-03-31 13F ON SEMICONDUCTOR COM 682189105 1,287,909 -1 -0.00 40,491 -3.95 0.3370
2021-01-22 2020-12-31 13F ON SEMICONDUCTOR COM 682189105 1,287,910 -274,708 -17.58 42,155 24.38 0.3336
2020-10-19 2020-09-30 13F ON SEMICONDUCTOR COM 682189105 1,562,618 318,228 25.57 33,892 37.41 0.3184
2020-07-23 2020-06-30 13F ON SEMICONDUCTOR COM 682189105 1,244,390 78,685 6.75 24,665 -11.22 0.2604
2020-05-26 2020-03-31 13F ON SEMICONDUCTOR COM 682189105 1,165,705 121 0.01 27,781 -2.24 0.3079
2020-02-05 2019-12-31 13F/A-1 ON SEMICONDUCTOR COM 682189105 1,165,584 512,265 78.41 28,417 126.43 0.3046
2020-01-21 2019-12-31 13F ON SEMICONDUCTOR COM 682189105 1,165,584 512,265 28 300,300.3003
2020-02-05 2019-09-30 13F/A-1 ON SEMICONDUCTOR COM 682189105 653,319 62,765 10.63 12,550 5.61 0.1663
2019-10-21 2019-09-30 13F ON SEMICONDUCTOR COM 682189105 653,319 62,765 13 163,378.1576
2019-08-01 2019-06-30 13F ON SEMICONDUCTOR COM 682189105 590,554 590,554 11,883 0.1482
2019-02-14 2018-12-31 13F ON SEMICONDUCTOR COM 682189105 0 -19,000 -100.00 0 -100.00
2018-11-07 2018-09-30 13F ON SEMICONDUCTOR COM 682189105 19,000 19,000 350 0.0047
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.