ON Semiconductor Corporation
CH ˙ SWX ˙ US6821891057
SecurityCH:ON / ON Semiconductor Corporation
InstitutionAsset Management One Co., Ltd.
Latest Disclosed Ownership173,501 shares
Latest Disclosed Value $ 10,743,182
Asset Management One Co., Ltd. reports 0.37% increase in ownership of ON / ON Semiconductor Corporation

On May 8, 2026 - Asset Management One Co., Ltd. filed a 13F-HR form disclosing ownership of 173,501 shares of ON Semiconductor Corporation (CH:ON) valued at $10,743,182 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 172,860 shares of ON Semiconductor Corporation. This represents a change in shares of 0.37% 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)
2026-05-08 2026-03-31 13F ON SEMICONDUCTOR COM 682189105 173,501 641 0.37 10,743 15.05 0.0317
2026-01-27 2025-12-31 13F ON SEMICONDUCTOR COM 682189105 172,860 -27,405 -13.68 9,338 -5.44 0.0260
2025-10-22 2025-09-30 13F ON SEMICONDUCTOR COM 682189105 200,265 -1,669 -0.83 9,875 -6.69 0.0286
2025-07-31 2025-06-30 13F ON SEMICONDUCTOR COM 682189105 201,934 2,113 1.06 10,583 30.17 0.0332
2025-04-23 2025-03-31 13F ON SEMICONDUCTOR COM 682189105 199,821 5,107 2.62 8,131 -36.75 0.0281
2025-01-30 2024-12-31 13F ON SEMICONDUCTOR COM 682189105 194,714 7,717 4.13 12,853 -5.33 0.0442
2024-10-30 2024-09-30 13F ON SEMICONDUCTOR COM 682189105 186,997 1,007 0.54 13,578 6.49 0.0483
2024-07-18 2024-06-30 13F ON SEMICONDUCTOR COM 682189105 185,990 -1,182 -0.63 12,750 -7.39 0.0488
2024-05-02 2024-03-31 13F ON SEMICONDUCTOR COM 682189105 187,172 -8,713 -4.45 13,767 -17.30 0.0531
2024-01-24 2023-12-31 13F ON SEMICONDUCTOR COM 682189105 195,885 -26,332 -11.85 16,646 -19.41 0.0670
2023-10-19 2023-09-30 13F ON SEMICONDUCTOR COM 682189105 222,217 11,232 5.32 20,655 3.51 0.0920
2023-07-31 2023-06-30 13F ON SEMICONDUCTOR COM 682189105 210,985 -27,158 -11.40 19,955 1.79 0.0845
2023-04-25 2023-03-31 13F ON SEMICONDUCTOR COM 682189105 238,143 4,251 1.82 19,604 33.67 0.0889
2023-02-06 2022-12-31 13F ON SEMICONDUCTOR COM 682189105 233,892 -11,481 -4.68 14,665 -4.11 0.0715
2022-11-04 2022-09-30 13F ON SEMICONDUCTOR COM 682189105 245,373 2,256 0.93 15,294 25.04 0.0778
2022-07-29 2022-06-30 13F ON SEMICONDUCTOR COM 682189105 243,117 -2,164 -0.88 12,231 -20.36 0.0574
2022-05-13 2022-03-31 13F ON SEMICONDUCTOR COM 682189105 245,281 -6,169 -2.45 15,357 -11.36 0.0600
2022-02-09 2021-12-31 13F ON SEMICONDUCTOR COM 682189105 251,450 -4,048 -1.58 17,325 48.15 0.0604
2021-11-02 2021-09-30 13F ON SEMICONDUCTOR COM 682189105 255,498 6,168 2.47 11,694 22.53 0.0448
2021-08-03 2021-06-30 13F ON SEMICONDUCTOR COM 682189105 249,330 -6,551 -2.56 9,544 -10.36 0.0355
2021-05-14 2021-03-31 13F ON SEMICONDUCTOR COM 682189105 255,881 -528 -0.21 10,647 31.06 0.0423
2021-02-12 2020-12-31 13F ON SEMICONDUCTOR COM 682189105 256,409 -22,497 -8.07 8,124 34.26 0.0335
2020-11-13 2020-09-30 13F ON SEMICONDUCTOR COM 682189105 278,906 -1,832 -0.65 6,051 8.77 0.0278
2020-08-14 2020-06-30 13F ON SEMICONDUCTOR COM 682189105 280,738 -36,040 -11.38 5,563 41.16 0.0274
2020-05-14 2020-03-31 13F ON SEMICONDUCTOR COM 682189105 316,778 -4,279 -1.33 3,941 -49.66 0.0230
2020-02-14 2019-12-31 13F ON SEMICONDUCTOR COM 682189105 321,057 -4,511 -1.39 7,828 25.23 0.0353
2019-11-14 2019-09-30 13F ON SEMICONDUCTOR COM 682189105 325,568 -10,056 -3.00 6,251 -7.84 0.0301
2019-08-14 2019-06-30 13F ON SEMICONDUCTOR COM 682189105 335,624 14,282 4.44 6,783 2.60 0.0333
2019-05-15 2019-03-31 13F ON SEMICONDUCTOR COM 682189105 321,342 -504,836 -61.10 6,611 -51.34 0.0358
2019-02-13 2018-12-31 13F ON SEMICONDUCTOR COM 682189105 826,178 -20,139 -2.38 13,585 -12.73 0.0324
2018-11-14 2018-09-30 13F ON SEMICONDUCTOR COM 682189105 846,317 -29,179 -3.33 15,566 -20.08 0.0319
2018-08-14 2018-06-30 13F ON SEMICONDUCTOR COM 682189105 875,496 652,919 293.35 19,476 257.75 0.0426
2018-05-14 2018-03-31 13F ON SEMICONDUCTOR COM 682189105 222,577 -45,972 -17.12 5,444 -3.95 0.0123
2018-02-14 2017-12-31 13F ON SEMICONDUCTOR COM 682189105 268,549 0 0.00 5,668 14.97 0.0125
2017-11-14 2017-09-30 13F ON SEMICONDUCTOR COM 682189105 268,549 15,000 5.92 4,930 36.87 0.0116
2017-08-14 2017-06-30 13F ON SEMICONDUCTOR COM 682189105 253,549 20,000 8.56 3,602 0.03 0.0092
2017-05-11 2017-03-31 13F ON SEMICONDUCTOR COM 682189105 233,549 -46,509 -16.61 3,601 -0.72 0.0095
2017-05-02 2016-12-31 13F/A-1 ON SEMICONDUCTOR COM 682189105 280,058 -308,497 -52.42 3,627 -49.09 0.0093
2017-02-13 2016-12-31 13F ON SEMICONDUCTOR COM 682189105 280,058 3,627
2016-11-07 2016-09-30 13F ON SEMICONDUCTOR Com 682189105 588,555 60,582 11.47 7,124 55.27 0.1058
2016-08-03 2016-06-30 13F ON SEMICONDUCTOR COM 682189105 527,973 77,124 17.11 4,588 4.82 0.0688
2016-05-05 2016-03-31 13F ON SEMICONDUCTOR COM 682189105 450,849 102,127 29.29 4,377 24.17 0.0639
2016-01-28 2015-12-31 13F ON SEMICONDUCTOR COM 682189105 348,722 -142,638 -29.03 3,525 -20.98 0.0526
2015-11-12 2015-09-30 13F ON SEMICONDUCTOR COM 682189105 491,360 -57,448 -10.47 4,461 -30.64 0.0679
2015-08-06 2015-06-30 13F ON SEMICONDUCTOR COM 682189105 548,808 -39,920 -6.78 6,432 -9.93 0.0891
2015-05-11 2015-03-31 13F ON SEMICONDUCTOR COM 682189105 588,728 -100,360 -14.56 7,141 1.61 0.0882
2015-02-09 2014-12-31 13F ON SEMICONDUCTOR COM 682189105 689,088 429,574 165.53 7,028 192.47 0.0912
2014-11-05 2014-09-30 13F ON SEMICONDUCTOR COM 682189105 259,514 164,852 174.15 2,403 179.42 0.0332
2014-08-12 2014-06-30 13F ON SEMICONDUCTOR COM 682189105 94,662 -162,914 -63.25 860 -63.67 0.0128
2014-05-05 2014-03-31 13F ON SEMICONDUCTOR COM 682189105 257,576 -63,570 -19.79 2,367 -10.54 0.0373
2014-02-05 2013-12-31 13F/A-1 ON SEMICONDUCTOR COM 682189105 321,146 -54,686 -14.55 2,646 -3.29 0.0410
2014-01-29 2013-12-31 13F ON SEMICONDUCTOR COM 682189105 321,146 2,646
2014-02-05 2013-09-30 13F/A-1 ON SEMICONDUCTOR Com 682189105 375,832 76,464 25.54 2,736 14.57 0.0412
2013-11-06 2013-09-30 13F ON SEMICONDUCTOR Com 682189105 375,832 2,736
2014-02-12 2013-06-30 13F/A-1 ON SEMICONDUCTOR Com 682189105 299,368 299,368 2,388 0.0388
2013-08-05 2013-06-30 13F ON SEMICONDUCTOR Com 682189105 299,368 2,388
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.