Magnachip Semiconductor Corporation
US ˙ NYSE ˙ US55933J2033

SecurityMX / Magnachip Semiconductor Corporation
InstitutionBridgeway Capital Management Inc
Latest Disclosed Ownership233,895 shares
Latest Disclosed Value $ 654,906
Bridgeway Capital Management Inc reports 42.80% decrease in ownership of MX / Magnachip Semiconductor Corporation

On May 15, 2026 - Bridgeway Capital Management Inc filed a 13F-HR form disclosing ownership of 233,895 shares of Magnachip Semiconductor Corporation (US:MX) valued at $654,906 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 408,895 shares of Magnachip Semiconductor Corporation. This represents a change in shares of -42.80% during the quarter. The current value of the position is $2,088,682 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 MAGNACHIP SEMICONDUCTOR COM 55933J203 233,895 -175,000 -42.80 655 -37.24 0.0132
2026-02-17 2025-12-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 408,895 -80,000 -16.36 1,043 -31.90 0.0219
2025-11-14 2025-09-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 488,895 52,000 11.90 1,530 -11.97 0.0326
2025-08-14 2025-06-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 436,895 0 0.00 1,739 16.02 0.0413
2025-05-15 2025-03-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 436,895 -137,556 -23.95 1,499 -35.12 0.0377
2025-02-14 2024-12-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 574,451 55,588 10.71 2,309 -4.70 0.0517
2024-11-14 2024-09-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 518,863 99,714 23.79 2,423 18.72 0.0524
2024-08-14 2024-06-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 419,149 195,476 87.39 2,041 63.54 0.0478
2024-05-15 2024-03-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 223,673 -82,550 -26.96 1,248 -45.64 0.0255
2024-02-14 2023-12-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 306,223 -9,152 -2.90 2,297 -12.37 0.0493
2023-11-14 2023-09-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 315,375 13,114 4.34 2,621 -22.46 0.0635
2023-08-14 2023-06-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 302,261 5,146 1.73 3,379 22.56 0.0809
2023-05-15 2023-03-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 297,115 42,115 16.52 2,757 15.16 0.0732
2023-02-14 2022-12-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 255,000 165,000 183.33 2,394 159.65 0.0620
2022-11-14 2022-09-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 90,000 90,000 922 0.0247
2020-05-15 2020-03-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 0 -50,000 -100.00 0 -100.00
2020-02-14 2019-12-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 50,000 0 0.00 581 14.60 0.0078
2019-11-14 2019-09-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 50,000 0 0.00 507 -2.12 0.0070
2019-08-14 2019-06-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 50,000 0 0.00 518 40.00 0.0066
2019-05-15 2019-03-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 50,000 50,000 370 0.0046
2017-08-14 2017-06-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 0 -156,100 -100.00 0 -100.00
2017-05-15 2017-03-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 156,100 0 0.00 1,491 54.03 0.0181
2017-02-14 2016-12-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 156,100 0 0.00 968 -25.65 0.0126
2016-11-14 2016-09-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 156,100 0 0.00 1,302 47.29 0.0194
2016-08-15 2016-06-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 156,100 156,100 0.00 884 0.0137
2015-05-15 2015-03-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 0 -71,500 -100.00 0 -100.00
2015-03-10 2014-12-31 13F/A-1 MAGNACHIP SEMICONDUCTOR COM 55933J203 71,500 -63,609 -47.08 929 -41.24 0.0211
2015-02-17 2014-12-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 71,500 929
2014-11-14 2014-09-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 135,109 -88,191 -39.49 1,581 -49.79 0.0399
2014-08-14 2014-06-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 223,300 -16,900 -7.04 3,149 -5.94 0.0826
2014-05-15 2014-03-31 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 240,200 0 0.00 3,348 -28.52 0.0958
2014-02-14 2013-12-31 13F MAGNACHIP SEMICO COM 55933J203 240,200 -500 -0.21 4,684 -9.61 0.1425
2013-11-14 2013-09-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 240,700 500 0.21 5,182 18.09 0.1768
2013-08-14 2013-06-30 13F MAGNACHIP SEMICONDUCTOR COM 55933J203 240,200 240,200 4,388 0.1753
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.