ON Semiconductor Corporation
US ˙ NasdaqGS ˙ US6821891057

SecurityON / ON Semiconductor Corporation
InstitutionMercer Global Advisors Inc /adv
Latest Disclosed Ownership37,878 shares
Latest Disclosed Value $ 2,345,388
Mercer Global Advisors Inc /adv reports 4.40% decrease in ownership of ON / ON Semiconductor Corporation

On May 15, 2026 - Mercer Global Advisors Inc /adv filed a 13F-HR form disclosing ownership of 37,878 shares of ON Semiconductor Corporation (US:ON) valued at $2,345,406 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 39,623 shares of ON Semiconductor Corporation. This represents a change in shares of -4.40% during the quarter. The current value of the position is $4,441,574 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)
2026-05-15 2026-03-31 13F ON SEMICONDUCTOR COM 682189105 37,878 -1,745 -4.40 2,345 9.32 0.0035
2026-02-17 2025-12-31 13F ON SEMICONDUCTOR COM 682189105 39,623 -14,655 -27.00 2,146 -19.84 0.0033
2025-11-14 2025-09-30 13F ON SEMICONDUCTOR COM 682189105 54,278 5,169 10.53 2,676 4.00 0.0045
2025-08-14 2025-06-30 13F ON SEMICONDUCTOR COM 682189105 49,109 14,694 42.70 2,574 83.79 0.0052
2025-05-15 2025-03-31 13F ON SEMICONDUCTOR COM 682189105 34,415 4,774 16.11 1,400 -25.05 0.0032
2025-02-14 2024-12-31 13F ON SEMICONDUCTOR COM 682189105 29,641 -13,535 -31.35 1,869 -39.11 0.0046
2024-11-14 2024-09-30 13F ON SEMICONDUCTOR COM 682189105 43,176 -19,827 -31.47 3,069 -28.95 0.0072
2024-08-12 2024-06-30 13F ON SEMICONDUCTOR COM 682189105 63,003 -3,548 -5.33 4,319 107,850.00 0.0118
2024-05-15 2024-03-31 13F ON SEMICONDUCTOR COM 682189105 66,551 -109,648 -62.23 5 -71.43 0.0139
2024-02-15 2023-12-31 13F ON SEMICONDUCTOR COM 682189105 176,199 -7,954 -4.32 15 -17.65 0.0443
2023-11-15 2023-09-30 13F/A-1 ON SEMICONDUCTOR COM 682189105 184,153 12,407 7.22 17 6.25 0.0650
2023-11-14 2023-09-30 13F ON SEMICONDUCTOR COM 682189105 184,153 12,407 17 0.0650
2023-08-14 2023-06-30 13F ON SEMICONDUCTOR COM 682189105 171,746 -15,290 -8.17 16 6.67 0.0645
2023-05-16 2023-03-31 13F ON SEMICONDUCTOR COM 682189105 187,036 82,498 78.92 15 150.00 0.0699
2023-02-09 2022-12-31 13F ON SEMICONDUCTOR COM 682189105 104,538 11,668 12.56 7 -99.90 0.0327
2022-11-15 2022-09-30 13F ON SEMICONDUCTOR COM 682189105 92,870 -5,542 -5.63 5,789 16.93 0.0344
2022-08-10 2022-06-30 13F ON SEMICONDUCTOR COM 682189105 98,412 20,170 25.78 4,951 1.06 0.0303
2022-05-10 2022-03-31 13F ON SEMICONDUCTOR COM 682189105 78,242 10,249 15.07 4,899 6.08 0.0289
2022-02-04 2021-12-31 13F ON SEMICONDUCTOR COM 682189105 67,993 18,514 37.42 4,618 103.89 0.0285
2021-11-10 2021-09-30 13F ON SEMICONDUCTOR COM 682189105 49,479 18,423 59.32 2,265 90.50 0.0158
2021-08-10 2021-06-30 13F ON SEMICONDUCTOR COM 682189105 31,056 24,318 360.91 1,189 324.64 0.0091
2021-08-10 2021-03-31 13F/A-1 ON SEMICONDUCTOR COM 682189105 6,738 -215 -3.09 280 22.81 0.0025
2021-05-11 2021-03-31 13F ON SEMICONDUCTOR COM 682189105 6,738 -215 280 0.0027
2021-02-12 2020-12-31 13F ON SEMICONDUCTOR COM 682189105 6,953 -19,156 -73.37 228 -59.72 0.0028
2020-12-10 2020-09-30 13F ON SEMICONDUCTOR COM 682189105 26,109 -2,219 -7.83 566 0.89 0.0085
2020-08-10 2020-06-30 13F ON SEMICONDUCTOR COM 682189105 28,328 -16,378 -36.63 561 0.90 0.0102
2020-05-18 2020-03-31 13F ON SEMICONDUCTOR COM 682189105 44,706 -87,048 -66.07 556 -82.69 0.0122
2020-02-13 2019-12-31 13F ON SEMICONDUCTOR CORP COM COM 682189105 131,754 14,203 12.08 3,212 42.25 0.0641
2019-11-12 2019-09-30 13F ON SEMICONDUCTOR CORP COM COM 682189105 117,551 13,548 13.03 2,258 7.42 0.0531
2019-08-14 2019-06-30 13F ON SEMICONDUCTOR CORP COM COM 682189105 104,003 6,750 6.94 2,102 5.10 0.0557
2019-04-23 2019-03-31 13F/A-1 ON SEMICONDUCTOR CORP COM COM 682189105 97,253 97,253 2,000 0.0719
2019-04-12 2019-03-31 13F ON SEMICONDUCTOR CORP COM 682189105 57,709 953 0.0508
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.