Who owns MAGNACHIP SEMICONDUCTOR Corp?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of MX from SEC Form 13F filings across 75 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 75 institutions disclosed 15.6M shares of MAGNACHIP SEMICONDUCTOR Corp worth $73.9M — about 42.9% of shares outstanding; the largest disclosed holder is MARSHALL WACE, LLP. Source: SEC Form 13F filings, parsed by EvidInvest.
75
13F holders
$73.9M
value, 2026 filers
42.9%
of shares outstanding (15.6M sh)
23
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of MX's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | MARSHALL WACE, LLP | 1.6M | $7.6M | 0.0% | 4.4% | +29.8% |
| 2 | FourWorld Capital Management LLC | 1.6M | $7.6M | 6.9% | 4.4% | -3.4% |
| 3 | TWO SIGMA INVESTMENTS, LP | 1.5M | $7.1M | 0.0% | 4.1% | +162.6% |
| 4 | OAKTREE CAPITAL MANAGEMENT LP | 1.5M | $7.1M | 0.1% | 4.1% | -47.4% |
| 5 | D. E. Shaw & Co., Inc. | 1.4M | $6.6M | 0.0% | 3.8% | +775.8% |
| 6 | ACADIAN ASSET MANAGEMENT LLC | 963,768 | $4.5M | 0.0% | 2.6% | +49.0% |
| 7 | RENAISSANCE TECHNOLOGIES LLC | 661,600 | $3.1M | 0.0% | 1.8% | +1763.7% |
| 8 | MORGAN STANLEY | 544,125 | $2.6M | 0.0% | 1.5% | -23.4% |
| 9 | DIMENSIONAL FUND ADVISORS LP | 475,648 | $2.2M | 0.0% | 1.3% | -13.4% |
| 10 | Connor, Clark & Lunn Investment Management Ltd. | 412,849 | $2.0M | 0.0% | 1.1% | +326.8% |
| 11 | Qube Research & Technologies LtdNEW | 382,383 | $1.8M | 0.0% | 1% | new |
| 12 | Trexquant Investment LPNEW | 285,909 | $1.4M | 0.0% | 0.8% | new |
| 13 | BNP PARIBAS FINANCIAL MARKETS | 265,146 | $1.3M | 0.0% | 0.7% | -19.5% |
| 14 | VANGUARD PORTFOLIO MANAGEMENT LLC | 239,694 | $1.1M | 0.0% | 0.7% | 0.0% |
| 15 | MILLENNIUM MANAGEMENT LLC | 236,422 | $1.1M | 0.0% | 0.6% | -19.3% |
| 16 | XTX Topco LtdNEW | 222,197 | $1.1M | 0.0% | 0.6% | new |
| 17 | JANE STREET GROUP, LLC | 215,877 | $1.0M | 0.0% | 0.6% | +333.8% |
| 18 | ODDO BHF ASSET MANAGEMENT SAS | 215,098 | $1.0M | 0.0% | 0.6% | 0.0% |
| 19 | BOOTHBAY FUND MANAGEMENT, LLC | 200,081 | $946,383 | 0.0% | 0.5% | -3.4% |
| 20 | GSA CAPITAL PARTNERS LLP | 199,954 | $946,000 | 0.1% | 0.5% | -28.8% |
| 21 | Caption Management, LLCNEW | 160,090 | $757,226 | 0.0% | 0.4% | new |
| 22 | Steward Partners Investment Advisory, LLC | 153,347 | $725,331 | 0.0% | 0.4% | -22.2% |
| 23 | BLUEFIN CAPITAL MANAGEMENT, LLCNEW | 147,698 | $698,612 | 0.2% | 0.4% | new |
| 24 | GROUP ONE TRADING LLC | 117,823 | $557,303 | 0.0% | 0.3% | +397.9% |
| 25 | Virtu Financial LLCNEW | 114,969 | $544,000 | 0.0% | 0.3% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.