Magnachip SemiconductorMX
13F holders, Q2 2026 (June 30)75holders +4
23new positions
18sold out
7famous investors
$4.73avg. 13F price*
At the end of Q2 2026, 75 institutions reported holding Magnachip Semiconductor Corp. (MX) in their 13F filings, up 4 from Q1 2026. 23 opened new positions and 18 sold out. The largest holders were Marshall Wace, LLP ($7.6M), FourWorld Capital Management LLC ($7.6M) and Two Sigma Investments, LP ($7.1M). 7 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 David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio).
- Company
- Magnachip Semiconductor Corp.
- CUSIP
- 55933J203
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 23 | $8.1M |
| Exits | 18 | $19.9M |
All 13F filers, Q1 2026 → Q2 2026: 6,140,610 shares bought and 10,121,560 shares sold, net −3,980,950 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 75 holders
| Marshall Wace, LLP | 0.01% | Add +29.8% | 1,615,488 | $7.6M |
| FourWorld Capital Management LLC | 9.67% | Reduce -3.4% | 1,600,695 | $7.6M |
| Two Sigma Investments, LP | 0.01% | Add +162.6% | 1,501,438 | $7.1M |
| Oaktree Capital Management | 0.19% | Reduce -47.4% | 1,500,000 | $7.1M |
| D. E. Shaw & Co. | 0.00% | Add +775.8% | 1,397,759 | $6.6M |
| Acadian Asset Management LLC | 0.01% | Add +49.0% | 963,768 | $4.5M |
| Renaissance Technologies | 0.00% | Add +1763.7% | 661,600 | $3.1M |
| Morgan Stanley | 0.00% | Reduce -23.4% | 544,125 | $2.6M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -13.4% | 475,648 | $2.2M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | Add +326.9% | 412,849 | $2.0M |
| Qube Research & Technologies Ltd | 0.00% | New | 382,383 | $1.8M |
| Trexquant Investment LP | 0.01% | New | 285,909 | $1.4M |
| BNP Paribas Financial Markets | 0.00% | Reduce -19.5% | 265,146 | $1.3M |
| Vanguard Portfolio Management LLC | 0.00% | No change | 239,694 | $1.1M |
| Millennium Management | 0.00% | Reduce -19.3% | 236,422 | $1.1M |
| XTX Topco Ltd | 0.01% | New | 222,197 | $1.1M |
| Jane Street Group, LLC | 0.00% | Add +333.8% | 215,877 | $1.0M |
| Oddo BHF Asset Management Sas | 0.05% | No change | 215,098 | $1.0M |
| Boothbay Fund Management, LLC | 0.02% | Reduce -3.4% | 200,081 | $946K |
| Gsa Capital Partners LLP | 0.06% | Reduce -28.8% | 199,954 | $946K |
| Caption Management, LLC | 0.03% | New | 160,090 | $757K |
| Steward Partners Investment Advisory, LLC | 0.00% | Reduce -22.2% | 153,347 | $725K |
| Bluefin Capital Management, LLC | 0.20% | New | 147,698 | $699K |
| Group One Trading LLC | 0.02% | Add +397.9% | 117,823 | $557K |
| Virtu Financial LLC | 0.02% | New | 114,969 | $544K |
| Citadel Advisors | 0.00% | Add +26.1% | 111,043 | $525K |
| Algert Global LLC | 0.01% | Add +88.8% | 110,785 | $524K |
| UBS Group AG | 0.00% | Reduce -39.9% | 110,336 | $522K |
| Federation des caisses Desjardins du Quebec | 0.00% | Add +343.9% | 108,474 | $513K |
| Susquehanna International Group, LLP | 0.00% | Add +343.9% | 108,103 | $511K |
| Silverback Asset Management LLC | 1.77% | Reduce -54.5% | 100,000 | $473K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -52.2% | 95,843 | $453K |
| Tudor Investment Corporation | 0.00% | New | 75,103 | $355K |
| American Century Companies Inc. | 0.00% | Add +1.5% | 73,701 | $349K |
| IMC-Chicago, LLC | 0.00% | New | 67,909 | $321K |
| Squarepoint Ops LLC | 0.00% | New | 67,450 | $319K |
| Fairfax Financial Holdings | 0.01% | Reduce -50.0% | 62,500 | $296K |
| Barclays PLC | 0.00% | Add +937.7% | 60,000 | $284K |
| Eurizon Capital SGR S.p.A. | 0.00% | Reduce -14.1% | 60,955 | $282K |
| Polunin Capital Partners Ltd | 0.06% | Add +4.9% | 59,811 | $240K |
| Bridgeway Capital Management, LLC | 0.00% | Reduce -80.3% | 46,141 | $218K |
| JPMorgan Chase & Co. | 0.00% | Reduce -69.5% | 38,588 | $178K |
| WINTON GROUP Ltd | 0.01% | New | 34,678 | $164K |
| Yakira Capital Management, Inc. | 0.05% | Reduce -64.6% | 34,675 | $164K |
| Wesbanco Bank Inc. | 0.00% | New | 30,000 | $142K |
| State Street Corp. | 0.00% | Add +1.0% | 28,692 | $136K |
| HRT Financial LP | 0.00% | Add +48.5% | 28,441 | $134K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +6211.9% | 27,646 | $131K |
| Citigroup Inc. | 0.00% | New | 23,206 | $110K |
| GABELLI & Co INVESTMENT ADVISERS, INC. | 0.02% | Reduce -71.0% | 22,505 | $106K |
| Gabelli Funds LLC | 0.00% | Reduce -81.5% | 21,670 | $102K |
| Susquehanna Fundamental Investments, LLC | 0.00% | New | 19,066 | $90K |
| Axq Capital, LP | 0.01% | Reduce -43.9% | 18,212 | $86K |
| LPL Financial LLC | 0.00% | Add +48.2% | 17,685 | $84K |
| Fox Run Management, L.L.C. | 0.01% | New | 16,461 | $78K |
| BlackRock, Inc. | 0.00% | Reduce -93.6% | 13,377 | $63K |
| Owlhouse Capital LP | 0.10% | New | 13,140 | $62K |
| Caitong International Asset Management Co., Ltd | 0.01% | Add +654500.0% | 13,092 | $62K |
| Accurate Wealth Management, LLC | 0.01% | New | 15,000 | $60K |
| StoneX Group Inc. | 0.00% | New | 10,625 | $57K |
| C2P Capital Advisory Group, LLC d.b.a. Prosperity Capital Advisors | 0.00% | New | 11,475 | $54K |
| Centiva Capital, LP | 0.00% | Reduce -75.6% | 10,573 | $50K |
| Walleye Capital LLC | 0.00% | New | 10,521 | $50K |
| Rockefeller Capital Management L.P. | 0.00% | New | 10,000 | $47K |
| Osaic Holdings, Inc. | 0.00% | No change | 7,193 | $34K |
| NFSG Corp | 0.00% | Add +25.4% | 5,925 | $28K |
| Simplex Trading, LLC | 0.00% | Add +2093.9% | 3,225 | $15K |
| SBI Securities Co., Ltd. | 0.00% | Add +117.4% | 2,296 | $11K |
| NewEdge Advisors, LLC | 0.00% | New | 1,000 | $5K |
| Jones Financial Companies LLLP | 0.00% | No change | 1,000 | $5K |
| Ameritas Advisory Services, LLC | 0.00% | New | 946 | $4K |
| Royal Bank of Canada | 0.00% | Reduce -64.4% | 688 | $3K |
| TD Waterhouse Canada Inc. | 0.00% | New | 500 | $2K |
| Salem Investment Counselors Inc. | 0.00% | No change | 300 | $1K |
| FMR LLC | 0.00% | No change | 37 | $175 |
"% of holder's portfolio" is MX's weight in each manager's 13F, not the share of Magnachip Semiconductor Corp. the manager owns.