ON Semiconductor Corporation
US ˙ NasdaqGS ˙ US6821891057

SecurityON / ON Semiconductor Corporation
InstitutionTwo Sigma Advisers, Lp
Latest Disclosed Ownership3,296,301 shares
Latest Disclosed Value $ 178,494,699
Two Sigma Advisers, Lp reports 27.71% increase in ownership of ON / ON Semiconductor Corporation

On February 17, 2026 - Two Sigma Advisers, Lp filed a 13F-HR form disclosing ownership of 3,296,301 shares of ON Semiconductor Corporation (US:ON) valued at $178,494,699 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 14, 2025 disclosing 2,581,100 shares of ON Semiconductor Corporation. This represents a change in shares of 27.71% during the quarter. The current value of the position is $386,524,255 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)
2026-02-17 2025-12-31 13F ON SEMICONDUCTOR COM 682189105 3,296,301 715,201 27.71 178,495 40.24 0.3470
2025-11-14 2025-09-30 13F ON SEMICONDUCTOR COM 682189105 2,581,100 820,300 46.59 127,274 37.92 0.2547
2025-08-14 2025-06-30 13F ON SEMICONDUCTOR COM 682189105 1,760,800 1,751,200 18,241.67 92,284 23,562.31 0.1891
2025-05-15 2025-03-31 13F ON SEMICONDUCTOR COM 682189105 9,600 9,600 391 0.0009
2024-05-15 2024-03-31 13F ON SEMICONDUCTOR COM 682189105 0 -2,700 -100.00 0 -100.00
2024-02-14 2023-12-31 13F ON SEMICONDUCTOR COM 682189105 2,700 -9,800 -78.40 226 -80.62 0.0005
2023-11-14 2023-09-30 13F ON SEMICONDUCTOR COM 682189105 12,500 12,500 1,162 0.0030
2023-05-15 2023-03-31 13F ON SEMICONDUCTOR COM 682189105 0 -25,000 -100.00 0 -100.00
2023-02-14 2022-12-31 13F ON SEMICONDUCTOR COM 682189105 25,000 25,000 1,559 0.0044
2022-05-16 2022-03-31 13F ON SEMICONDUCTOR COM 682189105 0 -352,400 -100.00 0 -100.00
2022-02-14 2021-12-31 13F ON SEMICONDUCTOR COM 682189105 352,400 -540,900 -60.55 23,935 -41.46 0.0599
2021-11-15 2021-09-30 13F ON SEMICONDUCTOR COM 682189105 893,300 812,800 1,009.69 40,886 1,226.61 0.1060
2021-08-16 2021-06-30 13F ON SEMICONDUCTOR COM 682189105 80,500 72,500 906.25 3,082 825.53 0.0081
2021-05-17 2021-03-31 13F ON SEMICONDUCTOR COM 682189105 8,000 -171,100 -95.53 333 -94.32 0.0009
2021-02-16 2020-12-31 13F ON SEMICONDUCTOR COM 682189105 179,100 179,100 5,862 0.0157
2019-05-15 2019-03-31 13F ON SEMICONDUCTOR COM 682189105 0 -16,167 -100.00 0 -100.00
2019-02-14 2018-12-31 13F ON SEMICONDUCTOR COM 682189105 16,167 16,167 267 0.0007
2018-08-14 2018-06-30 13F ON SEMICONDUCTOR COM 682189105 0 -221,172 -100.00 0 -100.00
2018-05-15 2018-03-31 13F ON SEMICONDUCTOR COM 682189105 221,172 -252,200 -53.28 5,410 -45.42 0.0147
2018-02-14 2017-12-31 13F ON SEMICONDUCTOR COM 682189105 473,372 -1,369,195 -74.31 9,912 -70.87 0.0267
2017-11-14 2017-09-30 13F ON SEMICONDUCTOR COM 682189105 1,842,567 25,265 1.39 34,032 33.38 0.0965
2017-08-14 2017-06-30 13F ON SEMICONDUCTOR COM 682189105 1,817,302 -466,465 -20.43 25,515 -27.87 0.0842
2017-05-15 2017-03-31 13F ON SEMICONDUCTOR COM 682189105 2,283,767 1,302,853 132.82 35,376 182.65 0.1160
2017-02-14 2016-12-31 13F ON SEMICONDUCTOR COM 682189105 980,914 -12,000 -1.21 12,516 2.31 0.0479
2016-11-14 2016-09-30 13F ON SEMICONDUCTOR COM 682189105 992,914 21,200 2.18 12,233 42.73 0.0521
2016-08-15 2016-06-30 13F ON SEMICONDUCTOR COM 682189105 971,714 -397,900 -29.05 8,571 -34.75 0.0435
2016-05-16 2016-03-31 13F ON SEMICONDUCTOR COM 682189105 1,369,614 -69,851 -4.85 13,135 -6.89 0.0735
2016-02-16 2015-12-31 13F ON SEMICONDUCTOR COM 682189105 1,439,465 790,751 121.90 14,107 131.30 0.0841
2015-11-16 2015-09-30 13F ON SEMICONDUCTOR COM 682189105 648,714 -507,500 -43.89 6,099 -54.88 0.0385
2016-02-09 2015-06-30 13F/A-1 ON SEMICONDUCTOR COMMON STOCK 682189105 1,156,214 -186,788 -13.91 13,516 -16.90 0.1040
2015-08-14 2015-06-30 13F ON SEMICONDUCTOR COMMON STOCK 682189105 1,158,314 13,562
2016-02-09 2015-03-31 13F/A-1 ON SEMICONDUCTOR COMMON STOCK 682189105 1,343,002 263,600 24.42 16,264 48.75 0.1248
2015-05-15 2015-03-31 13F ON SEMICONDUCTOR COMMON STOCK 682189105 1,328,002 16,081
2016-02-09 2014-12-31 13F/A-1 ON Semiconductor Common Stock 682189105 1,079,402 -1,081,412 -50.05 10,934 -43.40 0.0874
2015-02-17 2014-12-31 13F ON Semiconductor Common Stock 682189105 1,079,402 10,934
2016-02-09 2014-09-30 13F/A-1 ON SEMICONDUCTOR COM 682189105 2,160,814 51,112 2.42 19,318 0.18 0.1522
2014-11-14 2014-09-30 13F ON SEMICONDUCTOR COM 682189105 2,139,114 19,123
2016-02-09 2014-06-30 13F/A-1 ON SEMICONDUCTOR COMMON STOCK 682189105 2,109,702 4,100 0.19 19,283 -2.58 0.1552
2014-08-14 2014-06-30 13F ON SEMICONDUCTOR COMMON STOCK 682189105 2,109,702 19,283
2014-05-15 2014-03-31 13F ON SEMICONDUCTOR COMMON STOCK 682189105 2,105,602 1,308,500 164.16 19,793 201.36 0.1800
2014-02-14 2013-12-31 13F ON SEMICONDUCTOR COMMON STOCK 682189105 797,102 738,688 1,264.57 6,568 1,441.78 0.0634
2013-11-14 2013-09-30 13F ON SEMICONDUCTOR COM 682189105 58,414 -19,500 -25.03 426 -32.27 0.0051
2013-08-14 2013-06-30 13F ON SEMICONDUCTOR COM 682189105 77,914 77,914 629 0.0090
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.