MX Institutional Ownership & Shareholders
MAGNACHIP SEMICONDUCTOR CORP (MX) is currently held by 72 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $73.16M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Marshall Wace, Llp is currently the largest disclosed institutional shareholder of MX tracked by InsiderSet, reporting ownership valued at approximately $7.64M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $3.99M, representing an estimated loss of -47.78% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 69% of the total disclosed MX value among the investors covered in this analysis. Major shareholders include Marshall Wace, Llp, Fourworld Capital Management Llc, Two Sigma Investments, Lp, and several other long-term asset managers with concentrated positions in MAGNACHIP SEMICONDUCTOR CORP (MX).
This page ranks the largest institutional MX shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
72
Total Reported Value
$73.16M
Largest Holder
Marshall Wace, Llp
Largest Position
$7.64M
Insider Transactions (90d)
4
Latest Filing Quarter
Q2 2026
New Institutional Positions
106
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Marshall Wace, Llp | 0.01% | 1,615,488 | $7,641,259 | $3,990,255 | -$3,651,004 | -47.78% | |
| Fourworld Capital Management Llc | 8.75% | 1,600,695 | $7,571,287 | $3,953,717 | -$3,617,570 | -47.78% | |
| Two Sigma Investments, Lp | 0.01% | 1,501,438 | $7,101,802 | $3,708,552 | -$3,393,250 | -47.78% | |
| Oaktree Capital Management | Howard Marks | 0.13% | 1,500,000 | $7,095,000 | $3,705,000 | -$3,390,000 | -47.78% |
| D. E. Shaw & Co., Inc. | 0.00% | 1,397,759 | $6,611,400 | $3,452,465 | -$3,158,935 | -47.78% | |
| Acadian Asset Management Llc | 0.01% | 963,768 | $4,550,000 | $2,380,507 | -$2,169,493 | -47.68% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 661,600 | $3,129,368 | $1,634,152 | -$1,495,216 | -47.78% |
| Morgan Stanley | 0.00% | 544,125 | $2,573,711 | $1,343,989 | -$1,229,722 | -47.78% | |
| Dimensional Fund Advisors Lp | 0.00% | 475,648 | $2,249,489 | $1,174,851 | -$1,074,638 | -47.77% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | 412,849 | $1,952,776 | $1,019,737 | -$933,039 | -47.78% | |
| Qube Research & Technologies Ltd | 0.00% | 382,383 | $1,808,672 | $944,486 | -$864,186 | -47.78% | |
| Trexquant Investment Lp | 0.01% | 285,909 | $1,352,350 | $706,195 | -$646,155 | -47.78% | |
| Bnp Paribas Financial Markets | 0.00% | 265,146 | $1,254,141 | $654,911 | -$599,230 | -47.78% | |
| Vanguard Portfolio Management Llc | 0.00% | 239,694 | $1,133,753 | $592,044 | -$541,709 | -47.78% | |
| Millennium Management Llc | 0.00% | 236,422 | $1,118,276 | $583,962 | -$534,314 | -47.78% | |
| Xtx Topco Ltd | 0.01% | 222,197 | $1,050,992 | $548,827 | -$502,165 | -47.78% | |
| Jane Street Group, Llc | 0.00% | 215,877 | $1,021,099 | $533,216 | -$487,883 | -47.78% | |
| Boothbay Fund Management, Llc | 0.02% | 200,081 | $946,383 | $494,200 | -$452,183 | -47.78% | |
| Gsa Capital Partners Llp | 0.06% | 199,954 | $946,000 | $493,886 | -$452,114 | -47.79% | |
| Caption Management, Llc | 0.03% | 160,090 | $757,226 | $395,422 | -$361,804 | -47.78% | |
| Steward Partners Investment Advisory, Llc | 0.00% | 153,347 | $725,331 | $378,767 | -$346,564 | -47.78% | |
| Bluefin Capital Management, Llc | 0.20% | 147,698 | $698,612 | $364,814 | -$333,798 | -47.78% | |
| Group One Trading Llc | 0.02% | 117,823 | $557,303 | $291,023 | -$266,280 | -47.78% | |
| Virtu Financial Llc | 0.02% | 114,969 | $544,000 | $283,973 | -$260,027 | -47.80% | |
| Citadel Advisors Llc | 0.00% | 111,043 | $525,234 | $274,276 | -$250,958 | -47.78% | |
| Algert Global Llc | 0.01% | 110,785 | $524,013 | $273,639 | -$250,374 | -47.78% | |
| Ubs Group Ag | 0.00% | 110,336 | $521,889 | $272,530 | -$249,359 | -47.78% | |
| Federation Des Caisses Desjardins Du Quebec | 0.00% | 108,474 | $512,762 | $267,931 | -$244,831 | -47.75% | |
| Susquehanna International Group, Llp | 0.00% | 108,103 | $511,327 | $267,014 | -$244,313 | -47.78% | |
| Silverback Asset Management Llc | 0.06% | 100,000 | $473,000 | $247,000 | -$226,000 | -47.78% | |
| Goldman Sachs Group Inc | 0.00% | 95,843 | $453,337 | $236,732 | -$216,605 | -47.78% | |
| Tudor Investment Corp Et Al | 0.00% | 75,103 | $355,237 | $185,504 | -$169,733 | -47.78% | |
| American Century Companies Inc | 0.00% | 73,701 | $348,606 | $182,041 | -$166,565 | -47.78% | |
| Imc-Chicago, Llc | 0.00% | 67,909 | $321,210 | $167,735 | -$153,475 | -47.78% | |
| Squarepoint Ops Llc | 0.00% | 67,450 | $319,039 | $166,602 | -$152,438 | -47.78% | |
| Fairfax Financial Holdings | Prem Watsa | 0.01% | 62,500 | $296,250 | $154,375 | -$141,875 | -47.89% |
| Barclays Plc | 0.00% | 60,000 | $283,800 | $148,200 | -$135,600 | -47.78% | |
| Eurizon Capital Sgr S.P.A. | 0.00% | 60,955 | $281,871 | $150,559 | -$131,312 | -46.59% | |
| Bridgeway Capital Management, Llc | 0.00% | 46,141 | $218,247 | $113,968 | -$104,279 | -47.78% | |
| Jpmorgan Chase & Co | 0.00% | 38,588 | $178,277 | $95,312 | -$82,965 | -46.54% | |
| Winton Group Ltd | 0.01% | 34,678 | $164,027 | $85,655 | -$78,372 | -47.78% | |
| Yakira Capital Management, Inc. | 0.05% | 34,675 | $164,013 | $85,647 | -$78,366 | -47.78% | |
| Wesbanco Bank Inc | 0.00% | 30,000 | $141,900 | $74,100 | -$67,800 | -47.78% | |
| State Street Corp | 0.00% | 28,692 | $135,713 | $70,869 | -$64,844 | -47.78% | |
| Hrt Financial Lp | 0.00% | 28,441 | $134,000 | $70,249 | -$63,751 | -47.58% | |
| Tower Research Capital Llc (Trc) | 0.00% | 27,646 | $130,766 | $68,286 | -$62,480 | -47.78% | |
| Citigroup Inc | 0.00% | 23,206 | $109,764 | $57,319 | -$52,445 | -47.78% | |
| Gabelli & Co Investment Advisers, Inc. | 0.02% | 22,505 | $106,449 | $55,587 | -$50,862 | -47.78% | |
| Gabelli Funds Llc | 0.00% | 21,670 | $102,499 | $53,525 | -$48,974 | -47.78% | |
| Susquehanna Fundamental Investments, Llc | 0.00% | 19,066 | $90,182 | $47,093 | -$43,089 | -47.78% |
Frequently asked questions about MX
Who are the largest institutional holders of MX?
The largest institutional holders of MX reported in the latest SEC Form 13F filings include Marshall Wace, Llp, Fourworld Capital Management Llc, Two Sigma Investments, Lp, Oaktree Capital Management, and D. E. Shaw & Co., Inc.. InsiderSet ranks institutional holders by their latest reported MX position.
What is MX institutional ownership?
This page tracks MX positions reported by institutional investment managers through SEC Form 13F. MAGNACHIP SEMICONDUCTOR CORP (MX) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own MX?
InsiderSet currently tracks 72 institutional managers reporting MX holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of MX shareholders.
How much MX stock do institutions own?
Institutional investment managers disclosed approximately $73.16M in MX holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was MX institutional ownership last updated?
The latest MX institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional MX holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its MX position after the reporting date.
Are institutions buying or selling MX?
Institutional buying and selling can be analyzed by comparing MX positions across consecutive 13F reporting periods. InsiderSet's MX Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View MX ownership changes.
How has MX institutional ownership changed over time?
InsiderSet tracks MX institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.