온세미컨덕터(주)
MX ˙ BMV ˙ US6821891057
SecurityMX:ON / ON Semiconductor Corporation
InstitutionMaytus Capital Management, LLC
Latest Disclosed Ownership191,939 shares
Latest Disclosed Value $ 11,884,863
Maytus Capital Management, LLC reports 27.96% increase in ownership of ON / ON Semiconductor Corporation

On May 15, 2026 - Maytus Capital Management, LLC filed a 13F-HR form disclosing ownership of 191,939 shares of ON Semiconductor Corporation (MX:ON) valued at $11,884,863 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 150,000 shares of ON Semiconductor Corporation. This represents a change in shares of 27.96% 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)
2026-05-15 2026-03-31 13F ON SEMICONDUCTOR COM 682189105 191,939 41,939 27.96 11,885 46.32 2.1150
2026-02-17 2025-12-31 13F ON SEMICONDUCTOR COM 682189105 150,000 -28,003 -15.73 8,122 -7.46 1.9194
2025-11-14 2025-09-30 13F ON SEMICONDUCTOR COM 682189105 178,003 55,346 45.12 8,777 36.54 1.8827
2025-08-14 2025-06-30 13F ON SEMICONDUCTOR COM 682189105 122,657 122,657 6,428 1.1841
2025-02-14 2024-12-31 13F ON SEMICONDUCTOR COM 682189105 0 -105,000 -100.00 0 -100.00
2024-11-14 2024-09-30 13F ON SEMICONDUCTOR COM 682189105 105,000 55,000 110.00 7,624 122.47 2.6809
2024-08-05 2024-06-30 13F ON SEMICONDUCTOR COM 682189105 50,000 50,000 3,428 1.2249
2024-02-13 2023-12-31 13F ON SEMICONDUCTOR COM 682189105 0 -73,500 -100.00 0 -100.00
2023-11-13 2023-09-30 13F ON SEMICONDUCTOR COM 682189105 73,500 -10,500 -12.50 6,832 -14.01 3.8039
2023-08-14 2023-06-30 13F ON SEMICONDUCTOR COM 682189105 84,000 48,000 133.33 7,945 168.11 3.9120
2023-05-12 2023-03-31 13F ON SEMICONDUCTOR COM 682189105 36,000 -4,000 -10.00 2,964 18.81 1.9081
2023-02-06 2022-12-31 13F ON SEMICONDUCTOR COM 682189105 40,000 -80,000 -66.67 2,495 -66.66 2.8152
2022-11-14 2022-09-30 13F ON SEMICONDUCTOR COM 682189105 120,000 -70,000 -36.84 7,480 -21.75 6.6620
2022-08-12 2022-06-30 13F ON SEMICONDUCTOR COM 682189105 190,000 160,000 533.33 9,559 409.00 2.6255
2022-05-13 2022-03-31 13F ON SEMICONDUCTOR COM 682189105 30,000 -50,000 -62.50 1,878 -65.44 0.4643
2022-02-07 2021-12-31 13F ON SEMICONDUCTOR COM 682189105 80,000 -80,000 -50.00 5,434 -25.80 1.2586
2021-11-12 2021-09-30 13F ON SEMICONDUCTOR COM 682189105 160,000 160,000 7,323 2.5064
2021-08-16 2021-06-30 13F ON SEMICONDUCTOR COM 682189105 0 -210,000 -100.00 0 -100.00
2021-05-12 2021-03-31 13F ON SEMICONDUCTOR COM 682189105 210,000 -15,000 -6.67 8,738 18.66 2.9199
2021-02-08 2020-12-31 13F ON SEMICONDUCTOR COM 682189105 225,000 15,000 7.14 7,364 61.67 3.1494
2020-11-04 2020-09-30 13F ON SEMICONDUCTOR COM 682189105 210,000 -20,000 -8.70 4,555 -0.07 2.0999
2020-08-11 2020-06-30 13F ON SEMICONDUCTOR COM 682189105 230,000 230,000 9.52 4,558 0.07 2.3484
2020-05-08 2020-03-31 13F ON SEMICONDUCTOR COM 682189105 0 -270,000 -100.00 0 -100.00
2020-02-04 2019-12-31 13F ON SEMICONDUCTOR COM 682189105 270,000 270,000 6,583 3.2629
2019-11-12 2019-09-30 13F ON SEMICONDUCTOR COM 682189105 0 -130,000 -100.00 0 -100.00
2019-08-02 2019-06-30 13F ON SEMICONDUCTOR COM 682189105 130,000 -95,000 -42.22 2,627 -43.24 1.2778
2019-05-13 2019-03-31 13F ON SEMICONDUCTOR COM 682189105 225,000 225,000 4,628 2.4101
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.