MX Magnachip Semiconductor Corporation
Magnachip Semiconductor Corporation (MX) Institutional Ownership
What the institutions did with MX last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended September 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| DIMENSIONAL FUND ADVISORS LP | 503.4K | 53.4% |
| Almanack Investment Partners, LLC. | 166.4K | 17.6% |
| BARCLAYS PLC | 61.5K | 6.5% |
| Eurizon Capital SGR S.p.A. | 61.0K | 6.5% |
| Polunin Capital Partners Ltd | 59.8K | 6.3% |
| IMC-Chicago, LLC | 30.1K | 3.2% |
| Caitong International Asset Management Co., Ltd | 22.2K | 2.4% |
| LPL Financial LLC | 16.9K | 1.8% |
| Accurate Wealth Management, LLC | 15.0K | 1.6% |
| NFSG Corp | 5.9K | 0.6% |
| SBI Securities Co., Ltd. | 1.2K | 0.1% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Almanack Investment Partners, LLC. | New | 0 | 166.4K | +166.4K |
| IMC-Chicago, LLC | Reduced | 67.9K | 30.1K | -37.8K |
| WESBANCO BANK INC | Sold Out | 30.0K | 0 | -30.0K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 475.6K | 503.4K | +27.8K |
| CITIGROUP INC | Sold Out | 23.2K | 0 | -23.2K |
| C2P Capital Advisory Group, LLC d.b.a. Prosperity Capital Advisors | Sold Out | 11.5K | 0 | -11.5K |
| StoneX Group Inc. | Sold Out | 10.6K | 0 | -10.6K |
| Caitong International Asset Management Co., Ltd | Increased | 13.1K | 22.2K | +9.1K |
| SIMPLEX TRADING, LLC | Sold Out | 3.2K | 0 | -3.2K |
| BARCLAYS PLC | Increased | 60.0K | 61.5K | +1.5K |
| SBI Securities Co., Ltd. | Reduced | 2.3K | 1.2K | -1.1K |
| LPL Financial LLC | Reduced | 17.7K | 16.9K | -810 |
| TD Waterhouse Canada Inc. | Sold Out | 500 | 0 | -500 |
| SALEM INVESTMENT COUNSELORS INC | Sold Out | 300 | 0 | -300 |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.