ON Semiconductor Corporation
US ˙ NasdaqGS ˙ US6821891057

SecurityON / ON Semiconductor Corporation
InstitutionMackenzie Financial Corp
Latest Disclosed Ownership70,561 shares
Latest Disclosed Value $ 4,369,137
Mackenzie Financial Corp reports 11.89% increase in ownership of ON / ON Semiconductor Corporation

On May 13, 2026 - Mackenzie Financial Corp filed a 13F-HR form disclosing ownership of 70,561 shares of ON Semiconductor Corporation (US:ON) valued at $4,369,137 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 18, 2026 disclosing 63,064 shares of ON Semiconductor Corporation. This represents a change in shares of 11.89% during the quarter. The current value of the position is $9,450,235 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-13 2026-03-31 13F ON SEMICONDUCTOR COM 682189105 70,561 7,497 11.89 4,369 28.01 0.0052
2026-02-18 2025-12-31 13F ON SEMICONDUCTOR COM 682189105 63,064 -25,135 -28.50 3,414 -21.52 0.0040
2025-11-13 2025-09-30 13F ON SEMICONDUCTOR COM 682189105 88,199 25,159 39.91 4,349 31.67 0.0053
2025-08-13 2025-06-30 13F ON SEMICONDUCTOR COM 682189105 63,040 1,321 2.14 3,304 31.54 0.0043
2025-05-07 2025-03-31 13F ON SEMICONDUCTOR COM 682189105 61,719 3,284 5.62 2,511 -31.84 0.0036
2025-05-02 2024-12-31 13F/A-2 ON SEMICONDUCTOR COM 682189105 58,435 10,967 23.10 3,684 6.91 0.0050
2025-02-20 2024-12-31 13F/A-1 ON SEMICONDUCTOR COM 682189105 58,435 10,967 3,684 0.0048
2025-02-14 2024-12-31 13F ON Semiconductor Common Stock 682189105 58,435 10,967 3,720 0.0053
2024-11-13 2024-09-30 13F ON SEMICONDUCTOR COM 682189105 47,468 2,169 4.79 3,447 10.98 0.0048
2024-08-14 2024-06-30 13F ON SEMICONDUCTOR COM 682189105 45,299 8,950 24.62 3,105 16.16 0.0046
2024-05-10 2024-03-31 13F ON SEMICONDUCTOR COM 682189105 36,349 -3,742,964 -99.04 2,673 -99.15 0.0039
2024-01-30 2023-12-31 13F ON SEMICONDUCTOR COM 682189105 3,779,313 -1,422,954 -27.35 315,686 -32.39 0.4761
2023-10-25 2023-09-30 13F ON SEMICONDUCTOR COM 682189105 5,202,267 -1,135,011 -17.91 466,955 -23.90 0.7851
2023-08-03 2023-06-30 13F ON SEMICONDUCTOR COM 682189105 6,337,278 -588,610 -8.50 613,639 7.63 0.9309
2023-04-24 2023-03-31 13F ON SEMICONDUCTOR COM 682189105 6,925,888 -594,595 -7.91 570,139 21.55 0.8807
2023-02-14 2022-12-31 13F ON SEMICONDUCTOR COM 682189105 7,520,483 -441,203 -5.54 469,053 -5.48 0.7835
2022-10-07 2022-09-30 13F ON Semiconductor Common Stock 682189105 7,961,686 -518,486 -6.11 496,252 16.32 0.8535
2022-08-10 2022-06-30 13F ON SEMICONDUCTOR COM 682189105 8,480,172 861,793 11.31 426,637 -10.56 0.6833
2022-05-13 2022-03-31 13F ON SEMICONDUCTOR COM 682189105 7,618,379 2,478,914 48.23 476,987 36.64 0.6395
2022-02-14 2021-12-31 13F ON SEMICONDUCTOR COM 682189105 5,139,465 3,588,933 231.46 349,072 391.87 0.4703
2021-11-08 2021-09-30 13F ON SEMICONDUCTOR COM 682189105 1,550,532 4,462 0.29 70,968 19.91 0.1006
2021-08-11 2021-06-30 13F ON SEMICONDUCTOR COM 682189105 1,546,070 517,108 50.26 59,184 38.23 0.0823
2021-05-14 2021-03-31 13F ON SEMICONDUCTOR COM 682189105 1,028,962 1,028,962 42,815 0.0653
2019-08-23 2019-06-30 13F/A-1 ON SEMICONDUCTOR COM 682189105 0 -73,070 -100.00 0 -100.00
2019-05-15 2019-03-31 13F ON SEMICONDUCTOR COM 682189105 73,070 5,869 8.73 1,503 35.53 0.0036
2019-02-06 2018-12-31 13F ON SEMICONDUCTOR COM 682189105 67,201 67,201 1,109 0.0029
2016-11-15 2016-09-30 13F ON SEMICONDUCTOR COM 682189105 0 -117,800 -100.00 0 -100.00
2016-08-12 2016-06-30 13F ON SEMICONDUCTOR COM 682189105 117,800 1,000 0.86 1,039 -7.23 0.0059
2016-05-12 2016-03-31 13F ON SEMICONDUCTOR COM 682189105 116,800 1,800 1.57 1,120 -0.62 0.0102
2016-02-12 2015-12-31 13F ON SEMICONDUCTOR COM 682189105 115,000 -20,500 -15.13 1,127 -11.54 0.0070
2015-11-13 2015-09-30 13F ON SEMICONDUCTOR COM 682189105 135,500 21,500 18.86 1,274 -4.43 0.0077
2015-08-13 2015-06-30 13F ON SEMICONDUCTOR COM 682189105 114,000 114,000 1,333 0.0072
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.