Magnachip Semiconductor Corporation
US ˙ NYSE ˙ US55933J2033

SecurityMX / Magnachip Semiconductor Corporation
InstitutionShell Asset Management Co
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Shell Asset Management Co closes position in MX / Magnachip Semiconductor Corporation

On November 7, 2025 - Shell Asset Management Co filed a 13F-HR form disclosing ownership of 0 shares of Magnachip Semiconductor Corporation (US:MX) valued at $0 USD as of September 30, 2025. The entity filed a previous 13F-HR on July 23, 2025 disclosing 1,325 shares of Magnachip Semiconductor Corporation. The current value of the position is $0 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)
2025-11-07 2025-09-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 0 -100.00 0
2025-07-23 2025-06-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 1,325 -734 -35.65 0 0.0002
2025-05-14 2025-03-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 2,059 -163 -7.34 0 0.0003
2025-02-14 2024-12-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 2,222 -1 -0.04 0 0.0004
2024-11-07 2024-09-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 2,223 0 0.00 0 0.0004
2024-07-25 2024-03-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 2,223 -30 -1.33 0 0.0005
2024-02-14 2023-12-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 2,253 -731 -24.50 0 0.0008
2023-11-08 2023-09-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 2,984 -13 -0.43 0 0.0010
2023-07-28 2023-06-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 2,997 -16 -0.53 0 0.0013
2023-05-15 2023-03-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 3,013 -11 -0.36 0 0.0012
2023-02-07 2022-12-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 3,024 -344 -10.21 0 -100.00 0.0012
2022-11-14 2022-09-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 3,368 -406 -10.76 34 -38.18 0.0013
2022-08-09 2022-06-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 3,774 46 1.23 55 -12.70 0.0016
2022-05-04 2022-03-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 3,728 -625 -14.36 63 -30.77 0.0015
2022-02-09 2021-12-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 4,353 -52 -1.18 91 16.67 0.0019
2021-11-04 2021-09-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 4,405 -120 -2.65 78 -27.78 0.0018
2021-08-12 2021-06-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 4,525 0 0.00 108 -4.42 0.0021
2021-05-10 2021-03-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 4,525 -103,250 -95.80 113 -91.04 0.0023
2017-10-18 2017-09-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 107,775 0 0.00 1,261 0.00 0.0212
2015-10-13 2015-09-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 107,775 107,775 593.62 1,261 16.44 0.0200
2015-02-04 2014-12-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 0 -107,775 -100.00 0 -100.00
2014-10-24 2014-09-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 107,775 10,042 10.27 1,261 -8.49 0.0196
2014-08-08 2014-06-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 97,733 -1,136 -1.15 1,378 0.00 0.0212
2014-05-07 2014-03-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 98,869 -401 -0.40 1,378 -28.82 0.0229
2014-02-03 2013-12-31 13F/A-1 MAGNACHIP SEMICONDUCTOR COM 55933J203 99,270 -2,213 -2.18 1,936 -11.40 0.0329
2014-01-27 2013-12-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 99,270 1,936
2013-10-28 2013-09-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 101,483 18,250 21.93 2,185 43.66 0.0401
2013-08-01 2013-06-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 83,233 83,233 1,521 0.0290
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.