MAGNACHIP SEMICONDUCTOR CORP (MX) Institutional Ownership Changes & 13F Activity
MAGNACHIP SEMICONDUCTOR CORP (MX). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Oaktree Capital Management, D. E. Shaw & Co., Inc., Two Sigma Investments, Lp, Renaissance Technologies LLC, and Qube Research & Technologies Ltd.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Citadel Advisors Llc | Buy | +22,969 | +26.1% | 111,043 | $525.23K | Q2 2026 | Sep 02, 2026 |
| Oaktree Capital Management | Sell | -1,349,858 | -47.4% | 1,500,000 | $7.09M | Q2 2026 | Aug 14, 2026 |
| D. E. Shaw & Co., Inc. | Buy | +1,238,153 | +775.8% | 1,397,759 | $6.61M | Q2 2026 | Aug 14, 2026 |
| Two Sigma Investments, Lp | Buy | +929,604 | +162.6% | 1,501,438 | $7.10M | Q2 2026 | Aug 14, 2026 |
| Qube Research & Technologies Ltd | Buy | +382,383 | — | 382,383 | $1.81M | Q2 2026 | Aug 14, 2026 |
| Trexquant Investment Lp | Buy | +285,909 | — | 285,909 | $1.35M | Q2 2026 | Aug 14, 2026 |
| Xtx Topco Ltd | Buy | +222,197 | — | 222,197 | $1.05M | Q2 2026 | Aug 14, 2026 |
| Bridgeway Capital Management, Llc | Sell | -187,754 | -80.3% | 46,141 | $218.25K | Q2 2026 | Aug 14, 2026 |
| Jane Street Group, Llc | Buy | +166,108 | +333.8% | 215,877 | $1.02M | Q2 2026 | Aug 14, 2026 |
| Caption Management, Llc | Buy | +160,090 | — | 160,090 | $757.23K | Q2 2026 | Aug 14, 2026 |
| Bluefin Capital Management, Llc | Buy | +147,698 | — | 147,698 | $698.61K | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Sell | -104,800 | -52.2% | 95,843 | $453.34K | Q2 2026 | Aug 14, 2026 |
| Group One Trading Llc | Buy | +94,157 | +397.9% | 117,823 | $557.30K | Q2 2026 | Aug 14, 2026 |
| Federation Des Caisses Desjardins Du Quebec | Buy | +84,038 | +343.9% | 108,474 | $512.76K | Q2 2026 | Aug 14, 2026 |
| Susquehanna International Group, Llp | Buy | +83,753 | +344.0% | 108,103 | $511.33K | Q2 2026 | Aug 14, 2026 |
| Tudor Investment Corp Et Al | Buy | +75,103 | — | 75,103 | $355.24K | Q2 2026 | Aug 14, 2026 |
| Squarepoint Ops Llc | Buy | +67,450 | — | 67,450 | $319.04K | Q2 2026 | Aug 14, 2026 |
| Fairfax Financial Holdings | Sell | -62,500 | -50.0% | 62,500 | $296.25K | Q2 2026 | Aug 14, 2026 |
| Fourworld Capital Management Llc | Sell | -57,006 | -3.4% | 1,600,695 | $7.57M | Q2 2026 | Aug 14, 2026 |
| Millennium Management Llc | Sell | -56,518 | -19.3% | 236,422 | $1.12M | Q2 2026 | Aug 14, 2026 |
| Barclays Plc | Buy | +54,218 | +937.7% | 60,000 | $283.80K | Q2 2026 | Aug 14, 2026 |
| Susquehanna Fundamental Investments, Llc | Buy | +19,066 | — | 19,066 | $90.18K | Q2 2026 | Aug 14, 2026 |
| Owlhouse Capital Lp | Buy | +13,140 | — | 13,140 | $62.15K | Q2 2026 | Aug 14, 2026 |
| Hrt Financial Lp | Buy | +9,293 | +48.5% | 28,441 | $134.00K | Q2 2026 | Aug 14, 2026 |
| Boothbay Fund Management, Llc | Sell | -7,125 | -3.4% | 200,081 | $946.38K | Q2 2026 | Aug 14, 2026 |
| Royal Bank Of Canada | Sell | -1,246 | -64.4% | 688 | $3.00K | Q2 2026 | Aug 14, 2026 |
| Nfsg Corp | Buy | +1,200 | +25.4% | 5,925 | $28.02K | Q2 2026 | Aug 14, 2026 |
| Ameritas Advisory Services, Llc | Buy | +946 | — | 946 | $4.47K | Q2 2026 | Aug 14, 2026 |
| Renaissance Technologies LLC | Buy | +626,100 | +1763.7% | 661,600 | $3.13M | Q2 2026 | Aug 13, 2026 |
| Marshall Wace, Llp | Buy | +370,866 | +29.8% | 1,615,488 | $7.64M | Q2 2026 | Aug 13, 2026 |
Frequently asked questions about MX activity
Which institutional owners are buying MX?
Institutional owners buying MX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in MX activity?
"Buy" means an investor increased their reported position in MX compared to the prior reporting period. This reflects growing exposure to MAGNACHIP SEMICONDUCTOR CORP (MX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in MX increasing?
Institutional interest in MX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
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