ON Semiconductor Corporation
CH ˙ SWX ˙ US6821891057
SecurityCH:ON / ON Semiconductor Corporation
InstitutionGuggenheim Capital Llc
Latest Disclosed Ownership87,468 shares
Latest Disclosed Value $ 5,416,018
Guggenheim Capital Llc reports 3.76% decrease in ownership of ON / ON Semiconductor Corporation

On May 15, 2026 - Guggenheim Capital Llc filed a 13F-HR form disclosing ownership of 87,468 shares of ON Semiconductor Corporation (CH:ON) valued at $5,416,018 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 90,888 shares of ON Semiconductor Corporation. This represents a change in shares of -3.76% during the quarter.

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)
2026-05-15 2026-03-31 13F ON SEMICONDUCTOR COM 682189105 87,468 -3,420 -3.76 5,416 10.06 0.0209
2026-02-17 2025-12-31 13F ON SEMICONDUCTOR COM 682189105 90,888 -87,615 -49.08 4,922 -44.09 0.0352
2025-11-13 2025-09-30 13F ON SEMICONDUCTOR COM 682189105 178,503 938 0.53 8,802 -5.43 0.0639
2025-08-13 2025-06-30 13F ON SEMICONDUCTOR COM 682189105 177,565 14,128 8.64 9,306 39.94 0.0739
2025-05-14 2025-03-31 13F ON SEMICONDUCTOR COM 682189105 163,437 -29,576 -15.32 6,650 -45.35 0.0611
2025-02-13 2024-12-31 13F ON SEMICONDUCTOR COM 682189105 193,013 2,159 1.13 12,169 -12.18 0.0987
2024-11-13 2024-09-30 13F ON SEMICONDUCTOR COM 682189105 190,854 -672 -0.35 13,858 5.54 0.0970
2024-08-14 2024-06-30 13F ON SEMICONDUCTOR COM 682189105 191,526 23,979 14.31 13,129 6.54 0.0931
2024-05-14 2024-03-31 13F ON SEMICONDUCTOR COM 682189105 167,547 -4,733 -2.75 12,323 -14.36 0.0868
2024-02-14 2023-12-31 13F ON SEMICONDUCTOR COM 682189105 172,280 3,736 2.22 14,391 -8.15 0.1087
2023-11-14 2023-09-30 13F ON SEMICONDUCTOR COM 682189105 168,544 13,982 9.05 15,666 7.17 0.1347
2023-08-11 2023-06-30 13F ON SEMICONDUCTOR COM 682189105 154,562 67,776 78.10 14,618 104.62 0.1148
2023-05-11 2023-03-31 13F ON SEMICONDUCTOR COM 682189105 86,786 -6,857 -7.32 7,144 22.33 0.0601
2023-02-14 2022-12-31 13F ON SEMICONDUCTOR COM 682189105 93,643 24,172 34.79 5,841 34.87 0.0513
2022-11-14 2022-09-30 13F ON SEMICONDUCTOR COM 682189105 69,471 -7,232 -9.43 4,330 12.21 0.0397
2022-08-15 2022-06-30 13F ON SEMICONDUCTOR COM 682189105 76,703 3,017 4.09 3,859 -16.36 0.0305
2022-05-16 2022-03-31 13F ON SEMICONDUCTOR COM 682189105 73,686 -9,458 -11.38 4,614 -18.31 0.0278
2022-02-14 2021-12-31 13F ON SEMICONDUCTOR COM 682189105 83,144 -8,532 -9.31 5,648 34.60 0.0295
2021-11-15 2021-09-30 13F ON SEMICONDUCTOR COM 682189105 91,676 10,498 12.93 4,196 35.05 0.0252
2021-08-13 2021-06-30 13F ON SEMICONDUCTOR COM 682189105 81,178 -7,425 -8.38 3,107 -15.73 0.0183
2021-05-13 2021-03-31 13F ON SEMICONDUCTOR COM 682189105 88,603 20,783 30.64 3,687 66.16 0.0242
2021-02-16 2020-12-31 13F ON SEMICONDUCTOR COM 682189105 67,820 -8,686 -11.35 2,219 33.76 0.0139
2020-11-13 2020-09-30 13F ON SEMICONDUCTOR COM 682189105 76,506 -21,292 -21.77 1,659 -14.40 0.0120
2020-08-14 2020-06-30 13F ON SEMICONDUCTOR COM 682189105 97,798 10,206 11.65 1,938 77.80 0.0150
2020-06-02 2020-03-31 13F ON SEMICONDUCTOR COM 682189105 87,592 -51,229 -36.90 1,090 -67.80 0.0110
2020-02-20 2019-12-31 13F/A-1 ON SEMICONDUCTOR COM 682189105 138,821 15,818 12.86 3,385 43.25 0.0254
2020-02-14 2019-12-31 13F ON SEMICONDUCTOR COM 682189105 138,821 15,818 3,385 20,062.2184
2020-02-20 2019-09-30 13F/A-1 ON SEMICONDUCTOR COM 682189105 123,003 13,818 12.66 2,363 7.12 0.0189
2019-11-14 2019-09-30 13F ON SEMICONDUCTOR COM 682189105 123,003 13,818 2,363 17,316.7571
2019-08-14 2019-06-30 13F ON SEMICONDUCTOR COM 682189105 109,185 -31,899 -22.61 2,206 -23.98 0.0180
2019-05-15 2019-03-31 13F ON SEMICONDUCTOR COM 682189105 141,084 -61,006 -30.19 2,902 -13.01 0.0236
2019-02-14 2018-12-31 13F ON SEMICONDUCTOR COM 682189105 202,090 -56,639 -21.89 3,336 -30.03 0.0283
2018-11-14 2018-09-30 13F ON SEMICONDUCTOR COM 682189105 258,729 -24,188 -8.55 4,768 -24.22 0.0311
2018-08-14 2018-06-30 13F ON SEMICONDUCTOR COM 682189105 282,917 -37,321 -11.65 6,292 -19.66 0.0420
2018-05-15 2018-03-31 13F ON SEMICONDUCTOR COM 682189105 320,238 62,070 24.04 7,832 44.88 0.0191
2018-02-14 2017-12-31 13F ON SEMICONDUCTOR COM 682189105 258,168 -10,479 -3.90 5,406 8.95 0.0128
2017-11-14 2017-09-30 13F ON SEMICONDUCTOR COM 682189105 268,647 57,068 26.97 4,962 67.13 0.0117
2017-08-14 2017-06-30 13F ON SEMICONDUCTOR COM 682189105 211,579 53,520 33.86 2,969 21.33 0.0079
2017-05-15 2017-03-31 13F ON SEMICONDUCTOR COM 682189105 158,059 28,883 22.36 2,447 48.39 0.0066
2017-02-14 2016-12-31 13F ON SEMICONDUCTOR COM 682189105 129,176 4,016 3.21 1,649 6.94 0.0047
2016-11-14 2016-09-30 13F ON SEMICONDUCTOR COM 682189105 125,160 -59,448 -32.20 1,542 -5.28 0.0048
2016-08-15 2016-06-30 13F ON SEMICONDUCTOR COM 682189105 184,608 90,014 95.16 1,628 79.49 0.0051
2016-05-16 2016-03-31 13F ON SEMICONDUCTOR COM 682189105 94,594 -10,146 -9.69 907 -11.60 0.0029
2016-02-16 2015-12-31 13F ON SEMICONDUCTOR COM 682189105 104,740 3,568 3.53 1,026 7.89 0.0030
2015-11-16 2015-09-30 13F ON SEMICONDUCTOR COM 682189105 101,172 -72,673 -41.80 951 -53.20 0.0029
2015-08-14 2015-06-30 13F ON SEMICONDUCTOR COM 682189105 173,845 38,272 28.23 2,032 23.75 0.0050
2015-05-18 2015-03-31 13F/A-1 ON SEMICONDUCTOR COM 682189105 135,573 -5,800 -4.10 1,642 14.66 0.0039
2015-05-15 2015-03-31 13F ON SEMICONDUCTOR COM 682189105 135,573 1,642
2015-02-17 2014-12-31 13F ON SEMICONDUCTOR COM 682189105 141,373 -171,758 -54.85 1,432 -48.86 0.0036
2014-11-14 2014-09-30 13F ON SEMICONDUCTOR COM 682189105 313,131 80,853 34.81 2,800 31.83 0.0068
2014-08-14 2014-06-30 13F ON SEMICONDUCTOR COM 682189105 232,278 -59,214 -20.31 2,124 -22.45 0.0054
2014-05-16 2014-03-31 13F ON SEMICONDUCTOR COM 682189105 291,492 105,209 56.48 2,739 78.44 0.0078
2014-02-14 2013-12-31 13F ON SEMICONDUCTOR COM 682189105 186,283 -160,965 -46.35 1,535 -39.47 0.0047
2013-11-14 2013-09-30 13F ON SEMICONDUCTOR COM 682189105 347,248 255,844 279.90 2,536 243.63 0.0091
2013-08-22 2013-06-30 13F/A-1 ON SEMICONDUCTOR COM 682189105 91,404 91,404 738 0.0031
2013-08-14 2013-06-30 13F ON SEMICONDUCTOR COM 682189105 91,404 738 0.0031
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.