Magnachip Semiconductor Corporation
US ˙ NYSE ˙ US55933J2033

SecurityMX / Magnachip Semiconductor Corporation
InstitutionJump Financial, LLC
Latest Disclosed Ownership24,124 shares
Latest Disclosed Value $ 67,547
Jump Financial, LLC reports 75.98% decrease in ownership of MX / Magnachip Semiconductor Corporation

On May 14, 2026 - Jump Financial, LLC filed a 13F-HR form disclosing ownership of 24,124 shares of Magnachip Semiconductor Corporation (US:MX) valued at $67,547 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 100,451 shares of Magnachip Semiconductor Corporation. This represents a change in shares of -75.98% during the quarter. The current value of the position is $206,260 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)
2026-05-14 2026-03-31 13F Magnachip Semiconductor Common Stock 55933J203 24,124 -76,327 -75.98 68 -73.83 0.0008
2026-02-17 2025-12-31 13F Magnachip Semiconductor Common Stock 55933J203 100,451 37,119 58.61 256 29.29 0.0031
2025-11-13 2025-09-30 13F Magnachip Semiconductor Common Stock 55933J203 63,332 -6,495 -9.30 198 -28.52 0.0024
2025-08-13 2025-06-30 13F Magnachip Semiconductor Common Stock 55933J203 69,827 31,222 80.88 278 109.85 0.0031
2025-05-14 2025-03-31 13F Magnachip Semiconductor Common Stock 55933J203 38,605 868 2.30 132 -12.58 0.0018
2025-02-13 2024-12-31 13F Magnachip Semiconductor Common Stock 55933J203 37,737 37,737 152 0.0032
2024-11-14 2024-09-30 13F Magnachip Semiconductor Common Stock 55933J203 0 -19,800 -100.00 0 -100.00
2024-11-14 2024-06-30 13F/A-1 Magnachip Semiconductor Common Stock 55933J203 19,800 -22,730 -53.44 96 -59.49 0.0019
2024-08-14 2024-06-30 13F MAGNACHIP SEMICONDUCTOR Common Stock 55933J203 19,800 -22,730 96 0.0019
2024-05-13 2024-03-31 13F MAGNACHIP SEMICONDUCTOR Common Stock 55933J203 42,530 -25,605 -37.58 237 -53.62 0.0065
2024-10-21 2023-12-31 13F/A-1 Magnachip Semiconductor Common Stock 55933J203 68,135 47,935 237.30 511 205.99 0.0168
2024-02-07 2023-12-31 13F MAGNACHIP SEMICONDUCTOR Common Stock 55933J203 68,135 47,935 511 0.0169
2024-10-21 2023-09-30 13F/A-1 Magnachip Semiconductor Common Stock 55933J203 20,200 -15,800 -43.89 168 -58.46 0.0063
2023-11-07 2023-09-30 13F MAGNACHIP SEMICONDUCTOR Common Stock 55933J203 20,200 -15,800 168 0.0064
2024-10-21 2023-06-30 13F/A-1 Magnachip Semiconductor Common Stock 55933J203 36,000 36,000 402 0.0151
2023-08-07 2023-06-30 13F MAGNACHIP SEMICONDUCTOR Common Stock 55933J203 36,000 36,000 402 0.0152
2023-02-14 2022-12-31 13F MAGNACHIP SEMICONDUCTOR Common Stock 55933J203 0 -34,900 -100.00 0 -100.00
2022-11-07 2022-09-30 13F MAGNACHIP SEMICONDUCTOR Common Stock 55933J203 34,900 -2,233 -6.01 357 -33.89 0.0140
2022-08-09 2022-06-30 13F MAGNACHIP SEMICONDUCTOR Common Stock 55933J203 37,133 37,133 233.15 540 131.76 0.0233
2024-09-06 2022-03-31 13F/A-1 Magnachip Semiconductor Common Stock 55933J203 0 -11,146 -100.00 0 -100.00
2022-02-10 2021-12-31 13F Magnachip Semiconductor Common Stock 55933J203 11,146 11,146 233 0.0146
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.