ON Semiconductor Corporation
US ˙ NasdaqGS ˙ US6821891057

SecurityON / ON Semiconductor Corporation
InstitutionAmalgamated Bank
Latest Disclosed Ownership71,912 shares
Latest Disclosed Value $ 4,453
Amalgamated Bank reports 13.98% decrease in ownership of ON / ON Semiconductor Corporation

On May 8, 2026 - Amalgamated Bank filed a 13F-HR form disclosing ownership of 71,912 shares of ON Semiconductor Corporation (US:ON) valued at $4,452,791 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 83,604 shares of ON Semiconductor Corporation. This represents a change in shares of -13.98% during the quarter. The current value of the position is $9,631,174 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)
2026-05-08 2026-03-31 13F ON SEMICONDUCTOR CORP COM COM 682189105 71,912 -11,692 -13.98 4 0.00 0.0341
2026-02-05 2025-12-31 13F ON SEMICONDUCTOR CORP COM COM 682189105 83,604 5,399 6.90 5 33.33 0.0327
2025-10-29 2025-09-30 13F ON SEMICONDUCTOR CORP COM COM 682189105 78,205 -2,629 -3.25 4 -25.00 0.0276
2025-08-04 2025-06-30 13F ON SEMICONDUCTOR CORP COM COM 682189105 80,834 -2,397 -2.88 4 33.33 0.0327
2025-04-25 2025-03-31 13F ON SEMICONDUCTOR CORP COM COM 682189105 83,231 1,454 1.78 3 -40.00 0.0290
2025-02-04 2024-12-31 13F ON SEMICONDUCTOR CORP COM COM 682189105 81,777 -2,392 -2.84 5 -16.67 0.0423
2024-10-30 2024-09-30 13F ON SEMICONDUCTOR CORP COM COM 682189105 84,169 -2,570 -2.96 6 20.00 0.0503
2024-08-12 2024-06-30 13F ON SEMICONDUCTOR CORP COM COM 682189105 86,739 -2,126 -2.39 6 -16.67 0.0506
2024-04-23 2024-03-31 13F ON SEMICONDUCTOR CORP COM COM 682189105 88,865 -33,791 -27.55 7 -40.00 0.0559
2024-02-06 2023-12-31 13F ON SEMICONDUCTOR CORP COM COM 682189105 122,656 -9,299 -7.05 10 -16.67 0.0817
2023-11-08 2023-09-30 13F ON SEMICONDUCTOR CORP COM COM 682189105 131,955 21,761 19.75 12 20.00 0.1044
2023-08-11 2023-06-30 13F ON SEMICONDUCTOR CORP COM COM 682189105 110,194 -4,674 -4.07 10 11.11 0.0843
2023-05-02 2023-03-31 13F ON SEMICONDUCTOR CORP COM COM 682189105 114,868 -641 -0.55 9 28.57 0.0806
2023-02-10 2022-12-31 13F ON SEMICONDUCTOR CORP COM COM 682189105 115,509 1,323 1.16 7 -99.90 0.0642
2022-11-09 2022-09-30 13F ON SEMICONDUCTOR CORP COM COM 682189105 114,186 -26,866 -19.05 7,117 0.30 0.0687
2022-08-15 2022-06-30 13F ON SEMICONDUCTOR CORP COM COM 682189105 141,052 53,819 61.70 7,096 29.92 0.0662
2022-08-25 2022-03-31 13F/A-1 ON SEMICONDUCTOR CORP COM COM 682189105 87,233 3,177 3.78 5,462 -4.33 0.0424
2022-06-30 2022-03-31 13F ON SEMICONDUCTOR CORP COM COM 682189105 87,233 3,177 5,462 0.0434
2022-02-15 2021-12-31 13F/A-1 ON SEMICONDUCTOR CORP COM COM 682189105 84,056 -30,476 -26.61 5,709 8.91 0.0421
2022-02-15 2021-12-31 13F ON SEMICONDUCTOR CORP COM COM 682189105 84,056 -30,476 5,709 0.0421
2021-10-29 2021-09-30 13F ON SEMICONDUCTOR COM 682189105 114,532 -4,400 -3.70 5,242 15.13 0.0443
2021-08-16 2021-06-30 13F ON SEMICONDUCTOR COM 682189105 118,932 71,799 152.33 4,553 132.18 0.0365
2021-05-13 2021-03-31 13F ON SEMICONDUCTOR COM 682189105 47,133 -3,323 -6.59 1,961 18.78 0.0735
2021-02-12 2020-12-31 13F ON SEMICONDUCTOR COM 682189105 50,456 -137 -0.27 1,651 50.50 0.0626
2020-10-30 2020-09-30 13F ON SEMICONDUCTOR COM 682189105 50,593 103 0.20 1,097 9.59 0.0477
2020-08-10 2020-06-30 13F ON SEMICONDUCTOR COM 682189105 50,490 -37,978 -42.93 1,001 -9.08 0.0463
2020-05-13 2020-03-31 13F ON SEMICONDUCTOR COM 682189105 88,468 -1,943 -2.15 1,101 -50.05 0.0269
2020-02-13 2019-12-31 13F ON SEMICONDUCTOR COM 682189105 90,411 9,654 11.95 2,204 42.10 0.0406
2019-11-13 2019-09-30 13F ON SEMICONDUCTOR COM 682189105 80,757 -1,143 -1.40 1,551 -6.28 0.0326
2019-08-14 2019-06-30 13F ON SEMICONDUCTOR COM 682189105 81,900 -13,987 -14.59 1,655 -16.08 0.0386
2019-05-15 2019-03-31 13F ON SEMICONDUCTOR COM 682189105 95,887 1,746 1.85 1,972 26.90 0.0478
2019-02-15 2018-12-31 13F ON SEMICONDUCTOR COM 682189105 94,141 36,149 62.33 1,554 45.37 0.0440
2018-11-14 2018-09-30 13F ON SEMICONDUCTOR COM 682189105 57,992 -41,022 -41.43 1,069 -51.45 0.0264
2018-07-18 2018-06-30 13F ON SEMICONDUCTOR COM 682189105 99,014 10,408 11.75 2,202 1.62 0.0538
2018-05-22 2018-03-31 13F ON SEMICONDUCTOR COM 682189105 88,606 5,274 6.33 2,167 24.18 0.0575
2018-02-13 2017-12-31 13F ON SEMICONDUCTOR COM 682189105 83,332 4,587 5.83 1,745 20.01 0.0472
2017-11-09 2017-09-30 13F ON SEMICONDUCTOR COM 682189105 78,745 -1,460 -1.82 1,454 29.13 0.0453
2017-08-10 2017-06-30 13F ON SEMICONDUCTOR COM 682189105 80,205 20,873 35.18 1,126 22.52 0.0369
2017-05-12 2017-03-31 13F ON SEMICONDUCTOR COM 682189105 59,332 393 0.67 919 22.21 0.0457
2017-02-14 2016-12-31 13F ON SEMICONDUCTOR COM 682189105 58,939 7,358 14.26 752 18.43 0.0340
2016-11-15 2016-09-30 13F/A-1 ON SEMICONDUCTOR COM 682189105 51,581 149 0.29 635 20.27 0.0368
2016-08-16 2016-06-30 13F ON SEMICONDUCTOR COM 682189105 51,432 719 1.42 528 8.64 0.0305
2016-05-11 2016-03-31 13F ON SEMICONDUCTOR COM 682189105 50,713 4,010 8.59 486 6.11 0.0474
2016-02-10 2015-12-31 13F ON SEMICONDUCTOR COM 682189105 46,703 -3,353 -6.70 458 -2.76 0.0565
2015-11-04 2015-09-30 13F ON SEMICONDUCTOR COM 682189105 50,056 723 1.47 471 -18.37 0.0494
2015-07-10 2015-06-30 13F ON SEMICONDUCTOR COM 682189105 49,333 18,237 58.65 577 53.05 0.0567
2015-04-22 2015-03-31 13F ON SEMICONDUCTOR COM 682189105 31,096 31,096 0.00 377 0.0460
2015-01-29 2014-12-31 13F ON SEMICONDUCTOR COM 682189105 0 -29,175 -100.00 0 -100.00
2014-11-14 2014-09-30 13F ON SEMICONDUCTOR COM 682189105 29,175 354 1.23 261 -0.76 0.0388
2014-08-11 2014-06-30 13F ON SEMICONDUCTOR COM 682189105 28,821 -19,994 -40.96 263 -42.70 0.0397
2014-05-12 2014-03-31 13F ON SEMICONDUCTOR CORPORATION COM COM 682189105 48,815 -380 -0.77 459 13.33 0.0791
2014-02-13 2013-12-31 13F ON SEMICONDUCTOR CORPORATION COM COM 682189105 49,195 11,160 29.34 405 45.68 0.0688
2013-11-14 2013-09-30 13F ON SEMICONDUCTOR CORPORATION COM COM 682189105 38,035 38,035 256.83 278 215.91 0.0893
2013-08-15 2013-06-30 13F ON SEMICONDUCTOR CORPORATION COM COM 682189105 0 -10,659 -100.00 0 -100.00
2014-02-13 2013-03-31 13F ON SEMICONDUCTOR CORPORATION COM COM 682189105 10,659 633 6.31 88 23.94 0.0250
2014-02-11 2012-12-31 13F ON SEMICONDUCTOR CORPORATION COM COM 682189105 10,026 10,026 71 0.0296
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.