Magnachip SemiconductorMX
13F holders, Q4 2025 (December 31)69holders −6
10new positions
18sold out
5famous investors
$2.56avg. 13F price*
At the end of Q4 2025, 69 institutions reported holding Magnachip Semiconductor Corp. (MX) in their 13F filings, down 6 from Q3 2025. 10 opened new positions and 18 sold out. The largest holders were Oaktree Capital Management ($7.3M), Immersion Corp. ($4.8M) and Clearline Capital LP ($3.7M). 5 famous investors held it, including Howard Marks (0.2% of Oaktree Capital Management's portfolio), Prem Watsa (0.0% of Fairfax Financial Holdings's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Magnachip Semiconductor Corp.
- CUSIP
- 55933J203
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 10 | $1.6M |
| Exits | 18 | $9.5M |
All 13F filers, Q3 2025 → Q4 2025: 1,743,811 shares bought and 5,834,671 shares sold, net −4,090,860 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 69 holders
| Oaktree Capital Management | 0.16% | No change | 2,849,858 | $7.3M |
| Immersion Corp. | 3.28% | Reduce -31.5% | 1,878,828 | $4.8M |
| Clearline Capital LP | 0.28% | Reduce -23.1% | 1,461,036 | $3.7M |
| Ameriprise Financial Inc. | 0.00% | Add +1.3% | 1,450,892 | $3.7M |
| Marshall Wace, LLP | 0.00% | Add +47.2% | 1,285,832 | $3.3M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -18.2% | 827,859 | $2.1M |
| First Wilshire Securities Management Inc. | 0.47% | Add +53.8% | 732,857 | $1.9M |
| Morgan Stanley | 0.00% | Add +5.6% | 720,630 | $1.8M |
| Cygnus Capital Advisors, LLC | 1.18% | — | 610,778 | $1.6M |
| State of Wisconsin Investment Board | 0.00% | No change | 600,017 | $1.5M |
| Acadian Asset Management LLC | 0.00% | Add +34.7% | 581,856 | $1.5M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -14.0% | 420,817 | $1.1M |
| Bridgeway Capital Management, LLC | 0.02% | Reduce -16.4% | 408,895 | $1.0M |
| Polunin Capital Partners Ltd | 0.16% | Reduce -3.7% | 335,148 | $1.0M |
| Potomac Capital Management, Inc. | 0.83% | — | 386,900 | $987K |
| BNP Paribas Financial Markets | 0.00% | Add +3.8% | 327,568 | $835K |
| Two Sigma Investments, LP | 0.00% | Add +5.9% | 312,664 | $797K |
| Millennium Management | 0.00% | Add +13.6% | 288,837 | $737K |
| Prelude Capital Management, LLC | 0.05% | New | 251,627 | $642K |
| Vanguard Group Inc. | 0.00% | Reduce -76.7% | 239,694 | $611K |
| Two Sigma Advisers, LP | 0.00% | Reduce -18.2% | 237,938 | $607K |
| Silverback Asset Management LLC | 1.55% | No change | 220,000 | $561K |
| FourWorld Capital Management LLC | 0.52% | New | 216,108 | $551K |
| Oddo BHF Asset Management Sas | 0.02% | No change | 215,098 | $549K |
| Gsa Capital Partners LLP | 0.05% | Reduce -25.7% | 211,799 | $540K |
| BlackRock, Inc. | 0.00% | Reduce -1.3% | 208,592 | $532K |
| Steward Partners Investment Advisory, LLC | 0.00% | Reduce -3.4% | 196,052 | $500K |
| UBS Group AG | 0.00% | Reduce -1.1% | 179,695 | $458K |
| Gabelli Funds LLC | 0.00% | No change | 140,552 | $358K |
| D. E. Shaw & Co. | 0.00% | Reduce -16.1% | 137,949 | $352K |
| JPMorgan Chase & Co. | 0.00% | Add +6.8% | 128,262 | $327K |
| Fairfax Financial Holdings | 0.02% | No change | 125,000 | $316K |
| Susquehanna International Group, LLP | 0.00% | Add +244.6% | 119,155 | $304K |
| GABELLI & Co INVESTMENT ADVISERS, INC. | 0.04% | No change | 113,725 | $290K |
| Kennedy Capital Management LLC | 0.01% | Add +1.2% | 106,804 | $272K |
| Jane Street Group, LLC | 0.00% | Reduce -0.7% | 104,228 | $266K |
| Arrowstreet Capital, Limited Partnership | 0.00% | Reduce -61.2% | 101,907 | $260K |
| Jump Financial, LLC | 0.00% | Add +57.6% | 100,451 | $256K |
| Yakira Capital Management, Inc. | 0.09% | No change | 98,700 | $252K |
| American Century Companies Inc. | 0.00% | Reduce -4.5% | 72,843 | $186K |
| Centiva Capital, LP | 0.01% | Reduce -5.7% | 71,438 | $182K |
| Eurizon Capital SGR S.p.A. | 0.00% | — | 68,175 | $178K |
| Point72 Asset Management | 0.00% | New | 63,495 | $162K |
| Algert Global LLC | 0.00% | Add +99.3% | 58,695 | $150K |
| Altfest L J & Co. Inc. | 0.01% | No change | 47,809 | $122K |
| State Street Corp. | 0.00% | Reduce -1.6% | 27,813 | $71K |
| Boothbay Fund Management, LLC | 0.00% | New | 27,008 | $69K |
| XTX Topco Ltd | 0.00% | New | 25,383 | $65K |
| Quadrature Capital Ltd | 0.00% | Add +57.0% | 24,420 | $62K |
| Federation des caisses Desjardins du Quebec | 0.00% | No change | 24,436 | $62K |
| Sei Investments Co. | 0.00% | New | 24,381 | $62K |
| Sather Financial Group Inc | 0.00% | Reduce -27.7% | 20,920 | $53K |
| Citigroup Inc. | 0.00% | New | 15,477 | $39K |
| Investors Research Corp | 0.01% | Reduce -8.8% | 13,500 | $34K |
| HSBC Holdings PLC | 0.00% | No change | 13,097 | $34K |
| Cetera Investment Advisers | 0.00% | Reduce -2.7% | 12,368 | $32K |
| Group One Trading LLC | 0.00% | Reduce -23.0% | 11,991 | $31K |
| LPL Financial LLC | 0.00% | New | 11,932 | $30K |
| Barclays PLC | 0.00% | No change | 5,782 | $15K |
| NFSG Corp | 0.00% | No change | 4,725 | $12K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -32.7% | 1,914 | $5K |
| CIBC Private Wealth Group LLC | 0.00% | No change | 1,481 | $4K |
| SBI Securities Co., Ltd. | 0.00% | Add +1.9% | 1,071 | $3K |
| Jones Financial Companies LLLP | 0.00% | New | 1,000 | $3K |
| Bank of America Corp. | 0.00% | Reduce -3.1% | 845 | $2K |
| MAI Capital Management | 0.00% | New | 100 | $255 |
| Osaic Holdings, Inc. | 0.00% | Reduce -66.7% | 100 | $255 |
| FMR LLC | 0.00% | No change | 37 | $94 |
| Cwm, LLC | 0.00% | No change | 15 | $0 |
"% of holder's portfolio" is MX's weight in each manager's 13F, not the share of Magnachip Semiconductor Corp. the manager owns.