Magnachip SemiconductorMX
13F holders, Q3 2025 (September 30)75holders −16
6new positions
22sold out
6famous investors
$3.13avg. 13F price*
At the end of Q3 2025, 75 institutions reported holding Magnachip Semiconductor Corp. (MX) in their 13F filings, down 16 from Q2 2025. 6 opened new positions and 22 sold out. The largest holders were Oaktree Capital Management ($8.9M), Immersion Corp. ($8.6M) and Clearline Capital LP ($5.9M). 6 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 Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 6 | $3.9M |
| Exits | 22 | $1.8M |
All 13F filers, Q2 2025 → Q3 2025: 2,424,252 shares bought and 3,263,333 shares sold, net −839,081 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 75 holders
| Oaktree Capital Management | 0.19% | No change | 2,849,858 | $8.9M |
| Immersion Corp. | 5.30% | Reduce -14.6% | 2,743,575 | $8.6M |
| Clearline Capital LP | 0.51% | No change | 1,900,176 | $5.9M |
| Ameriprise Financial Inc. | 0.00% | Add +17.0% | 1,432,843 | $4.5M |
| Vanguard Group Inc. | 0.00% | Add +0.6% | 1,030,024 | $3.2M |
| Lepercq De Neuflize Asset Management LLC | 1.86% | New | 1,027,093 | $3.2M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -1.1% | 1,012,590 | $3.2M |
| Marshall Wace, LLP | 0.00% | Add +24.9% | 873,734 | $2.7M |
| Quinn Opportunity Partners LLC | 0.17% | No change | 730,468 | $2.3M |
| Morgan Stanley | 0.00% | Add +15.9% | 682,167 | $2.1M |
| State of Wisconsin Investment Board | 0.00% | No change | 600,017 | $1.9M |
| S Squared Technology, LLC | 0.61% | Reduce -16.4% | 510,514 | $1.6M |
| Goldman Sachs Group Inc. | 0.00% | Add +0.0% | 489,087 | $1.5M |
| Bridgeway Capital Management, LLC | 0.03% | Add +11.9% | 488,895 | $1.5M |
| First Wilshire Securities Management Inc. | 0.40% | Add +3.5% | 476,646 | $1.5M |
| Acadian Asset Management LLC | 0.00% | Add +186.9% | 431,956 | $1.3M |
| Polunin Capital Partners Ltd | 0.16% | Reduce -2.9% | 348,095 | $1.1M |
| BNP Paribas Financial Markets | 0.00% | Add +1.9% | 315,732 | $988K |
| Two Sigma Investments, LP | 0.00% | Reduce -1.7% | 295,305 | $924K |
| Two Sigma Advisers, LP | 0.00% | Reduce -11.1% | 290,738 | $910K |
| Gsa Capital Partners LLP | 0.07% | Add +4.9% | 285,045 | $892K |
| Arrowstreet Capital, Limited Partnership | 0.00% | Reduce -3.3% | 262,373 | $821K |
| Millennium Management | 0.00% | Reduce -17.4% | 254,255 | $796K |
| Silverback Asset Management LLC | 1.95% | No change | 220,000 | $689K |
| Oddo BHF Asset Management Sas | 0.03% | No change | 215,098 | $673K |
| BlackRock, Inc. | 0.00% | Reduce -1.7% | 211,374 | $662K |
| Steward Partners Investment Advisory, LLC | 0.00% | Add +1.6% | 202,852 | $635K |
| Systematic Financial Management LP | 0.01% | Reduce -89.8% | 197,446 | $618K |
| Citadel Advisors | 0.00% | Reduce -14.8% | 183,005 | $573K |
| UBS Group AG | 0.00% | Reduce -15.3% | 181,670 | $569K |
| D. E. Shaw & Co. | 0.00% | Add +256.2% | 164,440 | $515K |
| Gabelli Funds LLC | 0.00% | No change | 140,552 | $440K |
| Fairfax Financial Holdings | 0.02% | No change | 125,000 | $391K |
| JPMorgan Chase & Co. | 0.00% | Reduce -7.9% | 120,132 | $376K |
| GABELLI & Co INVESTMENT ADVISERS, INC. | 0.06% | No change | 113,725 | $356K |
| Kennedy Capital Management LLC | 0.01% | Add +63.4% | 105,551 | $330K |
| Jane Street Group, LLC | 0.00% | Add +723.6% | 104,987 | $329K |
| Yakira Capital Management, Inc. | 0.12% | No change | 98,700 | $309K |
| Renaissance Technologies | 0.00% | New | 97,900 | $306K |
| American Century Companies Inc. | 0.00% | No change | 76,312 | $239K |
| Centiva Capital, LP | 0.02% | New | 75,717 | $237K |
| BCK Capital Management LP | 0.23% | Reduce -7.3% | 68,876 | $216K |
| Jump Financial, LLC | 0.00% | Reduce -8.7% | 63,732 | $199K |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -44.0% | 54,831 | $172K |
| Altfest L J & Co. Inc. | 0.02% | No change | 47,809 | $150K |
| Invesco Ltd. | 0.00% | Reduce -59.9% | 41,760 | $131K |
| Susquehanna International Group, LLP | 0.00% | Reduce -65.0% | 34,578 | $108K |
| PFG Investments, LLC | 0.01% | Add +5.3% | 34,250 | $107K |
| Oxford Asset Management LLP | 0.03% | New | 31,743 | $99K |
| Cubist Systematic Strategies, LLC | 0.00% | Reduce -53.5% | 29,676 | $93K |
| Algert Global LLC | 0.00% | Add +44.7% | 29,455 | $92K |
| Sather Financial Group Inc | 0.00% | No change | 28,920 | $91K |
| State Street Corp. | 0.00% | Add +21.7% | 28,251 | $88K |
| Federation des caisses Desjardins du Quebec | 0.00% | Add +141.3% | 24,436 | $76K |
| ProShare Advisors LLC | 0.00% | Add +5.5% | 19,361 | $61K |
| Simplex Trading, LLC | 0.00% | Reduce -30.6% | 18,745 | $58K |
| Quadrature Capital Ltd | 0.00% | New | 15,557 | $49K |
| Group One Trading LLC | 0.00% | Add +560.6% | 15,578 | $49K |
| Investors Research Corp | 0.01% | No change | 14,800 | $46K |
| HSBC Holdings PLC | 0.00% | No change | 13,097 | $42K |
| Cetera Investment Advisers | 0.00% | New | 12,710 | $40K |
| Engineers Gate Manager LP | 0.00% | Reduce -80.4% | 11,713 | $37K |
| Royal Bank of Canada | 0.00% | Add +2140.0% | 11,200 | $35K |
| Founders Capital Management | 0.01% | No change | 6,000 | $19K |
| Barclays PLC | 0.00% | No change | 5,782 | $18K |
| NFSG Corp | 0.00% | No change | 4,725 | $15K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +404.3% | 2,844 | $9K |
| CIBC Private Wealth Group LLC | 0.00% | Add +7.2% | 1,481 | $5K |
| Wells Fargo & Company | 0.00% | Reduce -77.9% | 1,410 | $4K |
| SBI Securities Co., Ltd. | 0.00% | No change | 1,051 | $3K |
| Bank of America Corp. | 0.00% | Reduce -60.7% | 872 | $3K |
| Osaic Holdings, Inc. | 0.00% | Reduce -87.1% | 300 | $943 |
| Salem Investment Counselors Inc. | 0.00% | No change | 300 | $939 |
| FMR LLC | 0.00% | No change | 37 | $116 |
| Cwm, LLC | 0.00% | Reduce -76.9% | 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.